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Lee YS, Braun EL, Grotewold E. Evolutionary trajectory of transcription factors and selection of targets for metabolic engineering. Philos Trans R Soc Lond B Biol Sci 2024; 379:20230367. [PMID: 39343015 PMCID: PMC11439498 DOI: 10.1098/rstb.2023.0367] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 04/07/2024] [Accepted: 04/15/2024] [Indexed: 10/01/2024] Open
Abstract
Transcription factors (TFs) provide potentially powerful tools for plant metabolic engineering as they often control multiple genes in a metabolic pathway. However, selecting the best TF for a particular pathway has been challenging, and the selection often relies significantly on phylogenetic relationships. Here, we offer examples where evolutionary relationships have facilitated the selection of the suitable TFs, alongside situations where such relationships are misleading from the perspective of metabolic engineering. We argue that the evolutionary trajectory of a particular TF might be a better indicator than protein sequence homology alone in helping decide the best targets for plant metabolic engineering efforts. This article is part of the theme issue 'The evolution of plant metabolism'.
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Affiliation(s)
- Yun Sun Lee
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI48824, USA
| | - Edward L. Braun
- Department of Biology, University of Florida, Gainesville, FL32611, USA
| | - Erich Grotewold
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI48824, USA
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2
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Zhao R, Han HZ, Li SH, Zhang LH, Wang F, Zhang N. Functional identification of AaMYB113 and AaMYB114 from Aeonium arboreum 'Halloween' in model plants. Gene 2024; 927:148699. [PMID: 38880185 DOI: 10.1016/j.gene.2024.148699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/28/2024] [Accepted: 06/13/2024] [Indexed: 06/18/2024]
Abstract
Aeonium arboreum 'Halloween', a popular indoor ornamental succulent in China, changes its leaf colour to red on light exposure. However, the underlying molecular mechanisms is still vague. Comparative analysis of transcriptome data from 'Halloween' leaves treated under dark and light conditions revealed two R2R3-MYB transcription factors, AaMYB113 and AaMYB114, that may mediate anthocyanin accumulation. In this study, we cloned the AaMYB113 and AaMYB114 genes, encoding proteins of 279 and 248 amino acids, respectively. Transcriptional activity analysis revealed that AaMYB113 exhibits strong transcriptional activity, in contrast to AaMYB114, which demonstrates minimal activity. Transient expression studies in tobacco leaves demonstrated that AaMYB113 induced red pigmentation, whereas AaMYB114 did not. Subsequent stable overexpression in Arabidopsis thaliana confirmed that AaMYB113, but not AaMYB114, could similarly turn Arabidopsis leaves red. Further stable transformation of AaMYB113 in tobacco affected multiple floral components, including leaves, petals, calyx, flower tubes, and filaments, turning them red. Quantitative real-time PCR (qRT-PCR) assay in leaves of AaMYB113 stably transformed tobacco and Arabidopsis revealed upregulation of anthocyanin biosynthesis-related structural genes and TT8-like transcription factors. Moreover, the dual luciferase analysis confirmed that AaMYB113 can activate the promoters of 'Halloween' anthocyanin synthesis structural genes, AaCHS, AaCHI, AaF3H, AaDFR and AaANS. The above results indicate that AaMYB113 can promote anthocyanin synthesis, while AaMYB114 does not have this function. This study contributes significantly to the limited body of research on the molecular mechanisms of anthocyanin synthesis in succulents, advancing our understanding of how these pathways are regulated in 'Halloween' succulents and potentially other species.
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Affiliation(s)
- Rong Zhao
- College of Materials and Biology, Suqian University, Suqian, Jiangsu 223800, China
| | - Hao-Zhang Han
- College of Materials and Biology, Suqian University, Suqian, Jiangsu 223800, China.
| | - Su-Hua Li
- College of Materials and Biology, Suqian University, Suqian, Jiangsu 223800, China
| | - Li-Hua Zhang
- College of Materials and Biology, Suqian University, Suqian, Jiangsu 223800, China
| | - Fang Wang
- College of Materials and Biology, Suqian University, Suqian, Jiangsu 223800, China
| | - Nan Zhang
- College of Materials and Biology, Suqian University, Suqian, Jiangsu 223800, China
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McClean PE, Roy J, Colbert CL, Osborne C, Lee R, Miklas PN, Osorno JM. T and Z, partial seed coat patterning genes in common bean, provide insight into the structure and protein interactions of a plant MBW complex. G3 (BETHESDA, MD.) 2024; 14:jkae184. [PMID: 39167608 DOI: 10.1093/g3journal/jkae184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Accepted: 07/30/2024] [Indexed: 08/23/2024]
Abstract
Flavonoids are secondary metabolites associated with plant seed coat and flower color. These compounds provide health benefits to humans as anti-inflammatory and antioxidant compounds. The expression of the late biosynthetic genes in the flavonoid pathway is controlled by a ternary MBW protein complex consisting of interfacing MYB, beta-helix-loop-helix (bHLH), and WD40 Repeat (WDR) proteins. P, the master regulator gene of the flavonoid expression in common bean (Phaseolus vulgaris L.), was recently determined to encode a bHLH protein. The T and Z genes control the distribution of color in bean seeds and flowers and have historically been considered regulators of the flavonoid gene expression. T and Z candidates were identified using reverse genetics based on genetic mapping, phylogenetic analysis, and mutant analysis. Domain and AlphaFold2 structure analyses determined that T encodes a seven-bladed β-propeller WDR protein, while Z encodes a R2R3 MYB protein. Deletions and SNPs in T and Z mutants, respectively, altered the 3D structure of these proteins. Modeling of the Z MYB/P bHLH/T WDR MBW complex identified interfacing sequence domains and motifs in all three genes that are conserved in dicots. One Z MYB motif is a possible beta-molecular recognition feature (β-MoRF) that only appears in a structured state when Z MYB is modeled as a component of a MBW complex. Complexes containing mutant T and Z proteins changed the interaction of members of the complex in ways that would alter their role in regulating the expression of genes in the flavonoid pathway.
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Affiliation(s)
- Phillip E McClean
- Department of Plant Sciences, North Dakota State University, Fargo, ND, USA 58108
- Genomics, Phenomics, and Bioinformatics Program, North Dakota State University, Fargo, ND, USA 58108
| | - Jayanta Roy
- Department of Plant Sciences, North Dakota State University, Fargo, ND, USA 58108
| | - Christopher L Colbert
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, ND, USA 58108
| | - Caroline Osborne
- Department of Plant Sciences, North Dakota State University, Fargo, ND, USA 58108
- Genomics, Phenomics, and Bioinformatics Program, North Dakota State University, Fargo, ND, USA 58108
| | - Rian Lee
- Department of Plant Sciences, North Dakota State University, Fargo, ND, USA 58108
| | - Phillip N Miklas
- Legume Genetics and Physiology Research Unit, USDA-ARS, 24106 N. Bunn Rd., Prosser, Washington, USA 99350
| | - Juan M Osorno
- Department of Plant Sciences, North Dakota State University, Fargo, ND, USA 58108
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An JP, Zhao L, Cao YP, Ai D, Li MY, You CX, Han Y. The SMXL8-AGL9 module mediates crosstalk between strigolactone and gibberellin to regulate strigolactone-induced anthocyanin biosynthesis in apple. THE PLANT CELL 2024; 36:4404-4425. [PMID: 38917246 PMCID: PMC11448916 DOI: 10.1093/plcell/koae191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/31/2024] [Accepted: 06/15/2024] [Indexed: 06/27/2024]
Abstract
Although the strigolactone (SL) signaling pathway and SL-mediated anthocyanin biosynthesis have been reported, the molecular association between SL signaling and anthocyanin biosynthesis remains unclear. In this study, we identified the SL signal transduction pathway associated with anthocyanin biosynthesis and the crosstalk between gibberellin (GA) and SL signaling in apple (Malus × domestica). ELONGATED HYPOCOTYL5 (HY5) acts as a key node integrating SL signaling and anthocyanin biosynthesis, and the SL-response factor AGAMOUS-LIKE MADS-BOX9 (AGL9) promotes anthocyanin biosynthesis by activating HY5 transcription. The SL signaling repressor SUPPRESSOR OF MAX2 1-LIKE8 (SMXL8) interacts with AGL9 to form a complex that inhibits anthocyanin biosynthesis by downregulating HY5 expression. Moreover, the E3 ubiquitin ligase PROTEOLYSIS1 (PRT1) mediates the ubiquitination-mediated degradation of SMXL8, which is a key part of the SL signal transduction pathway associated with anthocyanin biosynthesis. In addition, the GA signaling repressor REPRESSOR-of-ga1-3-LIKE2a (RGL2a) mediates the crosstalk between GA and SL by disrupting the SMXL8-AGL9 interaction that represses HY5 transcription. Taken together, our study reveals the regulatory mechanism of SL-mediated anthocyanin biosynthesis and uncovers the role of SL-GA crosstalk in regulating anthocyanin biosynthesis in apple.
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Affiliation(s)
- Jian-Ping An
- State Key Laboratory of Plant Diversity and Specialty Crops, CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of Chinese Academy of Sciences, Wuhan 430074, China
- Apple technology innovation center of Shandong Province, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018 Shandong, China
- Hubei Hongshan Laboratory, Wuhan 430070, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China
| | - Lei Zhao
- State Key Laboratory of Plant Diversity and Specialty Crops, CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of Chinese Academy of Sciences, Wuhan 430074, China
- Hubei Hongshan Laboratory, Wuhan 430070, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China
| | - Yun-Peng Cao
- State Key Laboratory of Plant Diversity and Specialty Crops, CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of Chinese Academy of Sciences, Wuhan 430074, China
- Hubei Hongshan Laboratory, Wuhan 430070, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China
| | - Di Ai
- State Key Laboratory of Plant Diversity and Specialty Crops, CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of Chinese Academy of Sciences, Wuhan 430074, China
- Hubei Hongshan Laboratory, Wuhan 430070, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China
| | - Miao-Yi Li
- State Key Laboratory of Plant Diversity and Specialty Crops, CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of Chinese Academy of Sciences, Wuhan 430074, China
- Hubei Hongshan Laboratory, Wuhan 430070, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China
| | - Chun-Xiang You
- Apple technology innovation center of Shandong Province, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018 Shandong, China
| | - Yuepeng Han
- State Key Laboratory of Plant Diversity and Specialty Crops, CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of Chinese Academy of Sciences, Wuhan 430074, China
- Hubei Hongshan Laboratory, Wuhan 430070, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China
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Wang YX, Zhao QP, Zhu JD, Chu FY, Fu XL, Li XK, Ding MC, Liu YF, Wu QQ, Xue LL, Xin GY, Zhao X. TRANSPARENT TESTA GLABRA1 regulates high-intensity blue light-induced phototropism by reducing CRYPTOCHROME1 levels. PLANT PHYSIOLOGY 2024; 196:1475-1488. [PMID: 38833579 DOI: 10.1093/plphys/kiae322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/04/2024] [Accepted: 04/17/2024] [Indexed: 06/06/2024]
Abstract
The asymmetrical distribution of auxin supports high intensity blue light (HBL)-mediated phototropism. Flavonoids, secondary metabolites induced by blue light and TRANSPARENT TESTA GLABRA1 (TTG1), alter auxin transport. However, the role of TTG1 in HBL-induced phototropism in Arabidopsis (Arabidopsis thaliana) remains unclear. We found that TTG1 regulates HBL-mediated phototropism. HBL-induced degradation of CRYPTOCHROME 1 (CRY1) was repressed in ttg1-1, and depletion of CRY1 rescued the phototropic defects of the ttg1-1 mutant. Moreover, overexpression of CRY1 in a cry1 mutant background led to phototropic defects in response to HBL. These results indicated that CRY1 is involved in the regulation of TTG1-mediated phototropism in response to HBL. Further investigation showed that TTG1 physically interacts with CRY1 via its N-terminus and that the added TTG1 promotes the dimerization of CRY1. The interaction between TTG1 and CRY1 may promote HBL-mediated degradation of CRY1. TTG1 also physically interacted with blue light inhibitor of cryptochrome 1 (BIC1) and Light-Response Bric-a-Brack/Tramtrack/Broad 2 (LRB2), and these interactions either inhibited or promoted their interaction with CRY1. Exogenous gibberellins (GA) and auxins, two key plant hormones that crosstalk with CRY1, may confer the recovery of phototropic defects in the ttg1-1 mutant and CRY1-overexpressing plants. Our results revealed that TTG1 participates in the regulation of HBL-induced phototropism by modulating CRY1 levels, which are coordinated with GA or IAA signaling.
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Affiliation(s)
- Yu-Xi Wang
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China
| | - Qing-Ping Zhao
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China
- College of Life Science and Agricultural Engineering, Nanyang Normal University, 1638 Wolong Road, Nanyang 473061, Henan, China
| | - Jin-Dong Zhu
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China
| | - Fang-Yuan Chu
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China
| | - Xiang-Lin Fu
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China
| | - Xing-Kun Li
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China
| | - Mei-Chen Ding
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China
| | - Yan-Fei Liu
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China
| | - Qi-Qi Wu
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China
| | - Lin-Lin Xue
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China
| | - Guang-Yuan Xin
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China
| | - Xiang Zhao
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China
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Wang S, He G, Liu Y, Wang Y, Ma Y, Fu C, Xu H, Hu R, Li S. A P1-like MYB transcription factor boosts biosynthesis and transport of C-glycosylated flavones in duckweed. Int J Biol Macromol 2024; 277:134138. [PMID: 39067732 DOI: 10.1016/j.ijbiomac.2024.134138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 07/21/2024] [Accepted: 07/22/2024] [Indexed: 07/30/2024]
Abstract
C-glycosylated flavones (CGFs) are the main flavonoids in duckweed (Lemna turionifera), known for their diverse pharmacological activities and nutritional values. However, the molecular mechanisms underlying flavonoid metabolism in duckweed remain poorly understood. This study identified a P1-Like R2R3-MYB transcription factor, LtP1L, as a crucial regulator of CGF biosynthesis and transport in L. turionifera. Over-expression of LtP1L led to a six-fold increase in CGF levels, whereas the CRISPR-mediated knockdown of LtP1L caused a drastic 74.3 % decrease in CGF contents compared with the wild type. LtP1L specifically activated the expression of genes encoding key enzymes involved in the biosynthesis of CGFs, including flavanone 3'-hydroxylases (F3'H), flavanone 2-hydroxylases (F2H), and C-glycosyltransferase (CGT). Meanwhile, LtP1L activated genes associated with phenylalanine and phenylpropanoid biosynthesis pathways, such as 3-deoxy-7-phosphoheptulonate synthase (DHS), phenylalanine ammonia-lyase (PAL), cinnamate 4-hydroxylase (C4H), and 4-coumarate: CoA ligase (4CL), redirecting carbon metabolic flux towards flavonoid pathway at the early stages of phenylalanine synthesis. In addition, LtP1L directly bound to a novel AC-like cis-element in the promoter of a tonoplast-localized ATP-binding cassette (ABC) transporter LtABCC4 and activated its expression. Furthermore, the preference of LtABCC4 for isoorientin over orientin during vacuolar transport was evidenced by the significant reduction of isoorientin compared to orientin in the Ltabcc4crispr lines. Altogether, LtP1L acts as a crucial transcriptional orchestrator in coordinating the biosynthesis and intracellular transport of CGFs in duckweed.
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Affiliation(s)
- Shumin Wang
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guo He
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuchen Liu
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Yu Wang
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Yubin Ma
- Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Chunxiang Fu
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Hua Xu
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China.
| | - Ruibo Hu
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China.
| | - Shengjun Li
- Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China.
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Miao C, Song C, Ding N, Zuo X, Zhang Z, Zhang X, Mu J, Wang F. De novo transcriptome analysis identifies RpMYB1 as an activator of anthocyanin biosynthesis in Rehmannia piasezkii. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:108964. [PMID: 39094477 DOI: 10.1016/j.plaphy.2024.108964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 07/18/2024] [Accepted: 07/22/2024] [Indexed: 08/04/2024]
Abstract
Rehmannia piasezkii is a kind of medicinal plants, of the Orobanchaceae family, and well known for its large pink or purple corolla. However, no research on the molecular mechanism of flower color formation in R. piasezkii has been conducted so far. In this study, we investigated the transcriptome of root, stem, leaf and corollas of R. piasezkii using transcriptome sequencing technology and assembled 144,582 unigenes. A total of 58 anthocyanin biosynthetic genes were identified in the R. piasezkii transcriptome, fourteen of which were highly correlated with anthocyanin content, especially RpF3H2, RpDFR2, RpANS1, RpANS2 and RpUFGT. Totally, 35 MYB genes with FPKM values greater than 5 were identified in the R. piasezkii transcriptome, including an R2R3 MYB transcriptional factor RpMYB1, which belongs to subgroup 6 of the R2R3 MYB family. Agrobacterium-mediated transient expression of Nicotiana benthamiana revealed that overexpression of RpMYB1 could activate the expression of structural genes in anthocyanin synthesis pathway and promote the accumulation of anthocyanins in N. benthamiana leaves, indicating that RpMYB1 is a positive regulator of anthocyanin synthesis. Furthermore, combined transient overexpression of RpMYB1 with RpANS1, RpMYB1+RpANS1 with other structural genes all could further enhance the accumulation of anthocyanins in N. benthamiana leaves. Permanent overexpression of RpMYB1 in R. glutinosa promoted anthocyanin accumulation and expression levels of RgCHS, RgF3H, RgDFR and RgANS. Further evidence from dual-luciferase assay suggested that RpMYB1 could bind to the promoter of RpDFR2 and hence activating its expression. These findings provide insight into the molecular regulation in anthocyanin biosynthesis in R. piasezkii and provide valuable genetic resources for the genetic improvement of flower color.
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Affiliation(s)
- Chunyan Miao
- College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Ci Song
- College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Ning Ding
- College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Xin Zuo
- College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Zhongyi Zhang
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Xiaoquan Zhang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450046, China.
| | - Jing Mu
- National Resource Center for Chinese Meteria Medica, State Key Laboratory of Dao-di Herbs, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Fengqing Wang
- College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China.
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Huang F, Sun M, Yao Z, Zhou J, Bai Q, Chen X, Huang Y, Shen Y. Protein kinase SnRK2.6 phosphorylates transcription factor bHLH3 to regulate anthocyanin homeostasis during strawberry fruit ripening. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:5627-5640. [PMID: 38808519 DOI: 10.1093/jxb/erae250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 05/28/2024] [Indexed: 05/30/2024]
Abstract
Strawberry (Fragaria × ananassa) is a model plant for studying non-climacteric fruit ripening regulated by abscisic acid (ABA); however, the signaling of ABA in the regulation of fruit coloration is not fully understood. In this study, we identified the transcription factor BASIC HELIX-LOOP-HELIX 3 (bHLH3) as being key to fruit coloration via yeast two-hybrid library screening using the bait SUCROSE NONFERMENTING 1 (SNF1)-RELATED PROTEIN KINASE 2 (SnRK2.6), which is a core ABA signaling component that negatively regulates ripening. The interaction was also confirmed by firefly luciferase complementation assays and pull-down assays. RT-qPCR and western blot analysis confirmed that bHLH3 is expressed ubiquitously in strawberry tissues, and it is expressed stably during fruit development. Overexpression and RNAi of both bHLH3 and SnRK2.6 demonstrated that bHLH3 and SnRK2.6 promote and inhibit strawberry fruit coloration, respectively. Using EMSAs, we showed that bHLH3 promotes the expression of UDP-GLUCOSE: FLAVONOL-O-GLUCOSYLTRANSFERASE (UFGT), a key gene for anthocyanin biosynthesis, by directly binding to its promoter. We determined that SnRK2.6 can phosphorylate bHLH3 and that this inhibits its binding to the UFGT promoter, consequently suppressing expression. Altogether, we propose that increased ABA content during strawberry fruit ripening leads to decreased expression of SnRK2.6, which in turn releases the phosphorylation of bHLH3 and thereby enhances UFGT expression, ultimately promoting the coloration of the fruit.
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Affiliation(s)
- Fuli Huang
- College of Plant Science and Technology, Beijing University of Agriculture, No.7 Beinong Road, Changping District, Beijing 102206, P. R. China
| | - Mimi Sun
- College of Plant Science and Technology, Beijing University of Agriculture, No.7 Beinong Road, Changping District, Beijing 102206, P. R. China
| | - Zhijin Yao
- College of Plant Science and Technology, Beijing University of Agriculture, No.7 Beinong Road, Changping District, Beijing 102206, P. R. China
| | - Jing Zhou
- College of Plant Science and Technology, Beijing University of Agriculture, No.7 Beinong Road, Changping District, Beijing 102206, P. R. China
| | - Qian Bai
- College of Plant Science and Technology, Beijing University of Agriculture, No.7 Beinong Road, Changping District, Beijing 102206, P. R. China
- Ministry of Education Key Laboratory of Silviculture and Conservation, College of Forestry, Beijing Forestry University, 35 East Qinghua Road, Beijing 100083, P. R. China
| | - Xuexue Chen
- College of Plant Science and Technology, Beijing University of Agriculture, No.7 Beinong Road, Changping District, Beijing 102206, P. R. China
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, P. R. China
| | - Yun Huang
- College of Plant Science and Technology, Beijing University of Agriculture, No.7 Beinong Road, Changping District, Beijing 102206, P. R. China
| | - Yuanyue Shen
- College of Plant Science and Technology, Beijing University of Agriculture, No.7 Beinong Road, Changping District, Beijing 102206, P. R. China
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Liu Y, Feng X, Jin H, Zhang Y, Tong X, Zhu P. BoMYBL2b, an R3-MYB transcription factor, inhibits anthocyanin accumulation via directly repressing BoDFR1 gene transcription in kale. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 216:109140. [PMID: 39312849 DOI: 10.1016/j.plaphy.2024.109140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2024] [Revised: 09/02/2024] [Accepted: 09/20/2024] [Indexed: 09/25/2024]
Abstract
Kale is a globally popular edible and ornamental plant with colorful inner leaves. Anthocyanin is one of the most major pigments for kale. However, the underlying regulatory mechanism for the accumulation of anthocyanin in kale has not been well understood to date. Here, we characterized an R3-MYB transcription factor, BoMYBL2b, whose mRNA was missing in the anthocyanin-rich kale inbred line, but abundant in the anthocyanin-less line. Knockdown of BoMYBL2b enhanced the anthocyanin accumulation. Y1H and DLR assays showed that BoMYBL2b directly inhibited the BoDFR1 gene expression by binding to the MRE sites on the ProBoDFR1. Besides, we found that BoMYBL2b did not interact with the bHLH proteins, indicating that the BoMYBL2b might not be part of the MBW complex. BoMYBL2b expression was significantly repressed by BoMYB1R1 under high light and cold stimulus, suggesting the possibility that BoMYB1R1-BoMYBL2b module might act as a cross-node for integrating light and temperature signals to regulate anthocyanin accumulation in kale. These findings provided a theoretical basis for molecular breeding of new kale cultivars and a reference for understanding the regulatory mechanism of anthocyanin accumulation in Brassica.
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Affiliation(s)
- Yang Liu
- College of Forestry, Shenyang Agricultural University, Shenyang, 110866, China
| | - Xin Feng
- College of Forestry, Shenyang Agricultural University, Shenyang, 110866, China; Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, Shenyang, 110866, China
| | - Hangbiao Jin
- College of Forestry, Shenyang Agricultural University, Shenyang, 110866, China
| | - Yuting Zhang
- College of Forestry, Shenyang Agricultural University, Shenyang, 110866, China
| | - Xinru Tong
- College of Forestry, Shenyang Agricultural University, Shenyang, 110866, China
| | - Pengfang Zhu
- College of Forestry, Shenyang Agricultural University, Shenyang, 110866, China; Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, Shenyang, 110866, China.
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Zhao P, Yan X, Qian C, Ma G, Fan X, Yin X, Liao Y, Fang T, Zhou S, Awuku I, Ma XF. Flavonoid Synthesis Pathway Response to Low-Temperature Stress in a Desert Medicinal Plant, Agriophyllum Squarrosum (Sandrice). Genes (Basel) 2024; 15:1228. [PMID: 39336819 PMCID: PMC11431328 DOI: 10.3390/genes15091228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Revised: 09/01/2024] [Accepted: 09/03/2024] [Indexed: 09/30/2024] Open
Abstract
Background/Objectives:Agriophyllum squarrosum (L.) Moq. (A. squarrosum), also known as sandrice, is an important medicinal plant widely distributed in dunes across all the deserts of China. Common garden trials have shown content variations in flavonoids among the ecotypes of sandrice, which correlated with temperature heterogeneity in situ. However, there have not been any environmental control experiments to further elucidate whether the accumulation of flavonoids was triggered by cold stress; Methods: This study conducted a four-day ambient 4 °C low-temperature treatment on three ecotypes along with an in situ annual mean temperature gradient (Dulan (DL), Aerxiang (AEX), and Dengkou (DK)); Results: Target metabolomics showed that 12 out of 14 flavonoids in sandrice were driven by cold stress. Among them, several flavonoids were significantly up-regulated, such as naringenin and naringenin chalcone in all three ecotypes; isorhamnetin, quercetin, dihydroquercetin, and kaempferol in DL and AEX; and astragalin in DK. They were accompanied by 19 structural genes of flavonoid synthesis and 33 transcription factors were markedly triggered by cold stress in sandrice. The upstream genes, AsqAEX006535-CHS, AsqAEX016074-C4H, and AsqAEX004011-4CL, were highly correlated with the enrichment of naringenin, which could be fine-tuned by AsqAEX015868-bHLH62, AsqAEX001711-MYB12, and AsqAEX002220-MYB1R1; Conclusions: This study sheds light on how desert plants like sandrice adapt to cold stress by relying on a unique flavonoid biosynthesis mechanism that regulating the accumulation of naringenin. It also supports the precise development of sandrice for the medicinal industry. Specifically, quercetin and isorhamnetin should be targeted for development in DL and AEX, while astragalin should be precisely developed in DK.
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Affiliation(s)
- Pengshu Zhao
- Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xia Yan
- Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Inland River Ecohydrology, Cold and Arid Regions Environmental and Engineering Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Chaoju Qian
- Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Guorong Ma
- Gulang County Sand Prevention and Control Technology Promotion Center, Wuwei 733100, China
| | - Xingke Fan
- Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Xiaoyue Yin
- Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yuqiu Liao
- Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tingzhou Fang
- Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Shanshan Zhou
- Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Ibrahim Awuku
- Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Xiao-Fei Ma
- Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
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Xu P, Li M, Ma C, Li X, Bai P, Lin A, Wang C, Zhang L, Kuang H, Lian H. Loss-of-function mutation in anthocyanidin reductase activates the anthocyanin synthesis pathway in strawberry. MOLECULAR HORTICULTURE 2024; 4:33. [PMID: 39272174 PMCID: PMC11401314 DOI: 10.1186/s43897-024-00106-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 07/18/2024] [Indexed: 09/15/2024]
Abstract
Fruit color substantially affects consumer preferences, with darker red strawberries being economically more valuable due to their higher anthocyanin content. However, the molecular basis for the dark red coloration remains unclear. Through screening of an ethyl methanesulfonate mutant library, we identified a rg418 mutant, that demonstrated anthocyanin accumulation during early fruit development stages. Furthermore, the ripening fruits of this mutant had higher anthocyanin content than wild-type (WT) fruits. An analysis of flavonoid content in WT and rg418 mutant fruits revealed substantial changes in metabolic fluxes, with the mutant exhibiting increased levels of anthocyanins and flavonols and decreased levels of proanthocyanidins. Bulked sergeant analysis sequencing indicated that the mutant gene was anthocyanidin reductase (ANR), a key gene in the proanthocyanidin synthesis pathway. Furthermore, transcriptome sequencing revealed the increased expression of MYB105 during the early development stage of mutant fruits, which promoted the expression of UFGT (UDP-glucose flavonoid 3-O-glucosyltransferase), a key gene involved in anthocyanin synthesis, thus substantially enhancing the anthocyanin content in the mutant fruits. Additionally, mutating ANR in a white-fruited strawberry variant (myb10 mutant) resulted in appealing pink-colored fruits, suggesting the diverse roles of ANR in fruit color regulation. Our study provides valuable theoretical insights for improving strawberry fruit color.
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Affiliation(s)
- Pengbo Xu
- Shanghai Collaborative Innovation Center of Agri-Seeds, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Maobai Li
- Shanghai Agricultural Technology Extension and Service Center, Shanghai, China
| | - Chao Ma
- Shanghai Collaborative Innovation Center of Agri-Seeds, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Xinyu Li
- Shanghai Collaborative Innovation Center of Agri-Seeds, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Peng Bai
- Dandong Academy of Agricultural Sciences, Dandong, China
| | - Anqi Lin
- Shanghai Collaborative Innovation Center of Agri-Seeds, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Chong Wang
- Shanghai Collaborative Innovation Center of Agri-Seeds, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Liqing Zhang
- Forestry and Fruit Tree Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Huiyun Kuang
- Shanghai Agricultural Science and Technology Service Center, Shanghai, China
| | - Hongli Lian
- Shanghai Collaborative Innovation Center of Agri-Seeds, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China.
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12
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Zhang S, Liu S, Ren Y, Zhang J, Han N, Wang C, Wang D, Li H. The ERF transcription factor ZbERF3 promotes ethylene-induced anthocyanin biosynthesis in Zanthoxylum bungeanum. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 349:112264. [PMID: 39277047 DOI: 10.1016/j.plantsci.2024.112264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Revised: 08/23/2024] [Accepted: 09/11/2024] [Indexed: 09/17/2024]
Abstract
Ethylene regulates fruit ripening, and in Zanthoxylum bungeanum, fruit color deepened with increasing of ethylene during fruit ripening. However, the molecular mechanism of this physiological process was still unclear. In this study, through the combined analysis of transcriptome and metabolome, it was found that ethylene release was consistent with anthocyanin synthesis, and ethylene response factors (ERFs) were significantly related to anthocyanin biosynthesis during the fruit ripening of Z. bungeanum. Ethylene treatment significantly induced fruit coloration and promoted anthocyanin synthesis and the expression of ZbERF3. Furthermore, Yeast one-hybrid assays and Luciferase reporter assays demonstrated that ZbERF3 directly bound to the promoter of ZbMYB17 and transcriptionally activated its expression. What's more, it was demonstrated that ZbMYB17 directly bound to the promoter of ZbANS, promoting anthocyanin biosynthesis. Overall, this study revealed the mechanism of ERF and MYB synergistically regulating the coloration of Z. bungeanum fruit.
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Affiliation(s)
- Shuangyu Zhang
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Shen Liu
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Yanshen Ren
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Jie Zhang
- College of Forestry, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Nuan Han
- College of Forestry, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Cheng Wang
- College of Forestry, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Dongmei Wang
- College of Forestry, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Houhua Li
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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13
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Tang P, Huang J, Wang J, Wang M, Huang Q, Pan L, Liu F. Genome-wide identification of CaWD40 proteins reveals the involvement of a novel complex (CaAN1-CaDYT1-CaWD40-91) in anthocyanin biosynthesis and genic male sterility in Capsicum annuum. BMC Genomics 2024; 25:851. [PMID: 39261781 PMCID: PMC11389352 DOI: 10.1186/s12864-024-10681-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Accepted: 08/01/2024] [Indexed: 09/13/2024] Open
Abstract
BACKGROUND The WD40 domain, one of the most abundant in eukaryotic genomes, is widely involved in plant growth and development, secondary metabolic biosynthesis, and mediating responses to biotic and abiotic stresses. WD40 repeat (WD40) protein has been systematically studied in several model plants but has not been reported in the Capsicum annuum (pepper) genome. RESULTS Herein, 269, 237, and 257 CaWD40 genes were identified in the Zunla, CM334, and Zhangshugang genomes, respectively. CaWD40 sequences from the Zunla genome were selected for subsequent analysis, including chromosomal localization, phylogenetic relationships, sequence characteristics, motif compositions, and expression profiling. CaWD40 proteins were unevenly distributed on 12 chromosomes, encompassing 19 tandem duplicate gene pairs. The 269 CaWD40s were divided into six main branches (A to F) with 17 different types of domain distribution. The CaWD40 gene family exhibited diverse expression patterns, and several genes were specifically expressed in flowers and seeds. Yeast two-hybrid (Y2H) and dual-luciferase assay indicated that CaWD40-91 could interact with CaAN1 and CaDYT1, suggesting its involvement in anthocyanin biosynthesis and male sterility in pepper. CONCLUSIONS In summary, we systematically characterized the phylogeny, classification, structure, and expression of the CaWD40 gene family in pepper. Our findings provide a valuable foundation for further functional investigations on WD40 genes in pepper.
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Affiliation(s)
- Peng Tang
- Engineering Research Center for Germplasm Innovation and New Varieties Breeding of Horticultural Crops, Key Laboratory for Vegetable Biology of Hunan Province, College of Horticulture, Hunan Agricultural University, Changsha, China
| | - Jingcai Huang
- Engineering Research Center for Germplasm Innovation and New Varieties Breeding of Horticultural Crops, Key Laboratory for Vegetable Biology of Hunan Province, College of Horticulture, Hunan Agricultural University, Changsha, China
| | - Jin Wang
- Engineering Research Center for Germplasm Innovation and New Varieties Breeding of Horticultural Crops, Key Laboratory for Vegetable Biology of Hunan Province, College of Horticulture, Hunan Agricultural University, Changsha, China
| | - Meiqi Wang
- Engineering Research Center for Germplasm Innovation and New Varieties Breeding of Horticultural Crops, Key Laboratory for Vegetable Biology of Hunan Province, College of Horticulture, Hunan Agricultural University, Changsha, China
| | - Qing Huang
- Engineering Research Center for Germplasm Innovation and New Varieties Breeding of Horticultural Crops, Key Laboratory for Vegetable Biology of Hunan Province, College of Horticulture, Hunan Agricultural University, Changsha, China
| | - Luzhao Pan
- Engineering Research Center for Germplasm Innovation and New Varieties Breeding of Horticultural Crops, Key Laboratory for Vegetable Biology of Hunan Province, College of Horticulture, Hunan Agricultural University, Changsha, China
- Horticultural Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Feng Liu
- Engineering Research Center for Germplasm Innovation and New Varieties Breeding of Horticultural Crops, Key Laboratory for Vegetable Biology of Hunan Province, College of Horticulture, Hunan Agricultural University, Changsha, China.
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14
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Xin X, Wang S, Pan Y, Ye L, Zhai T, Gu M, Wang Y, Zhang J, Li X, Yang W, Zhang S. MYB Transcription Factor CDC5 Activates CBF3 Expression to Positively Regulates Freezing Tolerance via Cooperating With ICE1 and Histone Modification in Arabidopsis. PLANT, CELL & ENVIRONMENT 2024. [PMID: 39248548 DOI: 10.1111/pce.15144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2024] [Revised: 08/19/2024] [Accepted: 08/22/2024] [Indexed: 09/10/2024]
Abstract
The freezing temperature greatly limits the growth, development and productivity of plants. The C-repeat/DRE binding factor (CBF) plays a major role in cold acclimation, enabling plants to increase their freezing tolerance. Notably, the INDUCER OF CBF EXPRESSION1 (ICE1) protein has garnered attention for its pivotal role in bolstering plants' resilience against freezing through transcriptional upregulation of DREB1A/CBF3. However, the research on the interaction between ICE1 and other transcription factors and its function in regulating cold stress tolerance is largely inadequate. In this study, we found that a R2R3 MYB transcription factor CDC5 interacts with ICE1 and regulates the expression of CBF3 by recruiting RNA polymerase II, overexpression of ICE1 can complements the freezing deficient phenotype of cdc5 mutant. CDC5 increases the expression of CBF3 in response to freezing. Furthermore, CDC5 influences the expression of CBF3 by altering the chromatin status through H3K4me3 and H3K27me3 modifications. Our work identified a novel component that regulates CBF3 transcription in both ICE1-dependent and ICE1-independent manner, improving the understanding of the freezing signal transduction in plants.
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Affiliation(s)
- Xin Xin
- National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Shu Wang
- National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Yunjiao Pan
- National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Linhan Ye
- National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Tingting Zhai
- National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Mengjie Gu
- National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Yanjiao Wang
- National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Jiedao Zhang
- National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Xiang Li
- National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Wei Yang
- National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Shuxin Zhang
- National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, China
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15
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Lee SH, Kim SH, Park TK, Kim YP, Lee JW, Kim TW. Transcription factors BZR1 and PAP1 cooperate to promote anthocyanin biosynthesis in Arabidopsis shoots. THE PLANT CELL 2024; 36:3654-3673. [PMID: 38869214 PMCID: PMC11371145 DOI: 10.1093/plcell/koae172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 05/17/2024] [Accepted: 06/04/2024] [Indexed: 06/14/2024]
Abstract
Anthocyanins play critical roles in protecting plant tissues against diverse stresses. The complicated regulatory networks induced by various environmental factors modulate the homeostatic level of anthocyanins. Here, we show that anthocyanin accumulation is induced by brassinosteroids (BRs) in Arabidopsis (Arabidopsis thaliana) shoots and shed light on the underlying regulatory mechanism. We observed that anthocyanin levels are altered considerably in BR-related mutants, and BRs induce anthocyanin accumulation by upregulating the expression of anthocyanin biosynthetic genes. Our genetic analysis indicated that BRASSINAZOLE RESISTANT 1 (BZR1) and PRODUCTION OF ANTHOCYANIN PIGMENT 1 (PAP1) are essential for BR-induced anthocyanin accumulation. The BR-responsive transcription factor BZR1 directly binds to the PAP1 promoter, regulating its expression. In addition, we found that intense anthocyanin accumulation caused by the pap1-D-dominant mutation is significantly reduced in BR mutants, implying that BR activity is required for PAP1 function after PAP1 transcription. Moreover, we demonstrated that BZR1 physically interacts with PAP1 to cooperatively regulate the expression of PAP1-target genes, such as TRANSPARENT TESTA 8, DIHYDROFLAVONOL 4-REDUCTASE, and LEUKOANTHOCYANIDIN DIOXYGENASE. Our findings indicate that BZR1 functions as an integral component of the PAP1-containing transcription factor complex, contributing to increased anthocyanin biosynthesis. Notably, we also show that functional interaction of BZR1 with PAP1 is required for anthocyanin accumulation induced by low nitrogen stress. Taken together, our results demonstrate that BR-regulated BZR1 promotes anthocyanin biosynthesis through cooperative interaction with PAP1 of the MBW complex.
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Affiliation(s)
- Se-Hwa Lee
- Department of Life Science, Hanyang University, Seoul 04763, Republic of Korea
- Research Institute for Convergence of Basic Science, Hanyang University, Seoul 04763, Republic of Korea
| | - So-Hee Kim
- Department of Life Science, Hanyang University, Seoul 04763, Republic of Korea
- Research Institute for Convergence of Basic Science, Hanyang University, Seoul 04763, Republic of Korea
| | - Tae-Ki Park
- Department of Life Science, Hanyang University, Seoul 04763, Republic of Korea
- Hanyang Institute of Bioscience and Biotechnology, Hanyang University, Seoul 04763, Republic of Korea
| | - Young-Pil Kim
- Department of Life Science, Hanyang University, Seoul 04763, Republic of Korea
- Research Institute for Convergence of Basic Science, Hanyang University, Seoul 04763, Republic of Korea
- Hanyang Institute of Bioscience and Biotechnology, Hanyang University, Seoul 04763, Republic of Korea
| | - Jin-Won Lee
- Department of Life Science, Hanyang University, Seoul 04763, Republic of Korea
- Research Institute for Convergence of Basic Science, Hanyang University, Seoul 04763, Republic of Korea
- Hanyang Institute of Bioscience and Biotechnology, Hanyang University, Seoul 04763, Republic of Korea
| | - Tae-Wuk Kim
- Department of Life Science, Hanyang University, Seoul 04763, Republic of Korea
- Research Institute for Convergence of Basic Science, Hanyang University, Seoul 04763, Republic of Korea
- Hanyang Institute of Bioscience and Biotechnology, Hanyang University, Seoul 04763, Republic of Korea
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16
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Wang Z, Peng Z, Khan S, Qayyum A, Rehman A, Du X. Unveiling the power of MYB transcription factors: Master regulators of multi-stress responses and development in cotton. Int J Biol Macromol 2024; 276:133885. [PMID: 39019359 DOI: 10.1016/j.ijbiomac.2024.133885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 07/12/2024] [Accepted: 07/13/2024] [Indexed: 07/19/2024]
Abstract
Plants, being immobile, are subject to environmental stresses more than other creatures, necessitating highly effective stress tolerance systems. Transcription factors (TFs) play a crucial role in the adaptation mechanism as they can be activated by diverse signals and ultimately control the expression of stress-responsive genes. One of the most prominent plant TFs family is MYB (myeloblastosis), which is involved in secondary metabolites, developmental mechanisms, biological processes, cellular architecture, metabolic pathways, and stress responses. Extensive research has been conducted on the involvement of MYB TFs in crops, while their role in cotton remains largely unexplored. We also utilized genome-wide data to discover potential 440 MYB genes and investigated their plausible roles in abiotic and biotic stress conditions, as well as in different tissues across diverse transcriptome databases. This review primarily summarized the structure and classification of MYB TFs biotic and abiotic stress tolerance and their role in secondary metabolism in different crops, especially in cotton. However, it intends to identify gaps in current knowledge and emphasize the need for further research to enhance our understanding of MYB roles in plants.
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Affiliation(s)
- Zhenzhen Wang
- Zhengzhou Research Base, State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan 455000, China; Research Institute of Economic Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - Zhen Peng
- Zhengzhou Research Base, State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan 455000, China
| | - Sana Khan
- Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad 38040, Pakistan
| | - Abdul Qayyum
- Department of Plant Breeding and Genetics, Bahauddin Zakariya University, Multan 66000, Pakistan
| | - Abdul Rehman
- Zhengzhou Research Base, State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan 455000, China.
| | - Xiongming Du
- Zhengzhou Research Base, State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan 455000, China.
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17
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Arshad KT, Xiang C, Yuan C, Li L, Wang J, Zhou P, Manzoor N, Yang S, Li M, Liang Y, Chen J, Zhao Y. Elucidation of AsANS controlling pigment biosynthesis in Angelica sinensis through hormonal and transcriptomic analysis. PHYSIOLOGIA PLANTARUM 2024; 176:e14500. [PMID: 39221482 DOI: 10.1111/ppl.14500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 07/29/2024] [Accepted: 08/05/2024] [Indexed: 09/04/2024]
Abstract
Angelica sinensis, a traditional Chinese medicinal plant, has been primarily reported due to its nutritional value. Pigmentation in this plant is an important appearance trait that directly affects its commercial value. To understand the mechanism controlling purpleness in A. sinensis, hormonal and transcriptomic analyses were performed in three different tissues (leave, root and stem), using two cultivars with contrasting colors. The two-dimensional data set provides dynamic hormonal and gene expression networks underpinning purpleness in A. sinensis. We found abscisic acid as a crucial hormone modulating anthocyanin biosynthesis in A. sinensis. We further identified and validated 7 key genes involved in the anthocyanin biosynthesis pathway and found a specific module containing ANS as a hub gene in WGCNA. Overexpression of a candidate pigment regulatory gene, AsANS (AS08G02092), in transgenic calli of A. sinensis resulted in increased anthocyanin production and caused purpleness. Together, these analyses provide an important understanding of the molecular networks underlying A. sinensis anthocyanin production and its correlation with plant hormones, which can provide an important source for breeding.
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Affiliation(s)
- Khadija Tehseen Arshad
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
- Yunnan Characteristic Plant Extraction Laboratory, Kunming, Yunnan, China
| | - Chunfan Xiang
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
- Yunnan Characteristic Plant Extraction Laboratory, Kunming, Yunnan, China
| | - Chengxiao Yuan
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
- Yunnan Characteristic Plant Extraction Laboratory, Kunming, Yunnan, China
| | - Lesong Li
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Juan Wang
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Pinhan Zhou
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Nazer Manzoor
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Shengchao Yang
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
| | - Mengfei Li
- State Key Laboratory of Aridland Crop Science/College of Agronomy, Gansu Agricultural University, Lanzhou, China
| | - Yanli Liang
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Junwen Chen
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Yan Zhao
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
- Yunnan Characteristic Plant Extraction Laboratory, Kunming, Yunnan, China
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Zhang H, Yao T, Wang J, Ji G, Cui C, Song J, Sun N, Qi S, Xu N, Zhang H. Genome-wide identification of R2R3-MYB transcription factors in Betula platyphylla and functional analysis of BpMYB95 in salt tolerance. Int J Biol Macromol 2024; 279:135193. [PMID: 39216584 DOI: 10.1016/j.ijbiomac.2024.135193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Revised: 08/26/2024] [Accepted: 08/28/2024] [Indexed: 09/04/2024]
Abstract
The Myeloblastosis (MYB) transcription factor (TF) family is one of the largest transcription factor families in plants and plays an important role in various physiological processes. At present, there are few reports on birch (Betula platyphylla Suk.) of R2R3-MYB-TFs, and most BpMYBs still need to be characterized. In this study, 111 R2R3-MYB-TFs with conserved R2 and R3 MYB domains were identified. Phylogenetic tree analysis showed that the MYB family members of Arabidopsis thaliana and birch were divided into 23 and 21 subgroups, respectively. The latter exhibited an uneven distribution across 14 chromosomes. There were five tandem duplication events and 17 segmental duplication events between BpMYBs, and repeat events play an important role in the expansion of the family. In addition, the promoter region of MYBs was rich in various cis-acting elements, and MYB-TFs were involved in plant growth and development, light responses, biotic stress, and abiotic stress. RNA-sequencing (RNA-seq) and quantitative Real-Time Polymerase Chain Reaction (qRT-PCR) results revealed that most R2R3-MYB-TFs in birch responded to salt stress. In particular, the expression of BpMYBs in the S20 subfamily was significantly induced by salt, drought, abscisic acid, and methyl jasmonate stresses. Based on the weighted co-expression network analysis of physiological and RNA-seq data of birch under salt stress, a key MYB-TF BpMYB95 (BPChr12G24087), was identified in response to salt stress, and its expression level was induced by salt stress. BpMYB95 is a nuclear localization protein with transcriptional activation activity in yeast and overexpression of this gene significantly enhanced salt tolerance in Saccharomyces cerevisiae. The qRT-PCR and histochemical staining results showed that BpMYB95 exhibited the highest expression in the roots, young leaves, and petioles of birch plants. Overexpression of BpMYB95 significantly improved salt-induced browning and wilting symptoms in birch leaves and alleviated the degree of PSII photoinhibition caused by salt stress in birch seedlings. In conclusion, most R2R3-MYB-TFs found in birch were involved in the salt stress response mechanisms. Among these, BpMYB95 was a key regulatory factor that significantly enhanced salt tolerance in birch. The findings of this study provide valuable genetic resources for the development of salt-tolerant birch varieties.
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Affiliation(s)
- Hongbo Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, 150040, China
| | - Tongtong Yao
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, 150040, China
| | - Jiechen Wang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, 150040, China
| | - Guangxin Ji
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, 150040, China
| | - Congcong Cui
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, 150040, China
| | - Jiaqi Song
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, 150040, China
| | - Nan Sun
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, 150040, China
| | - Siyue Qi
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, 150040, China
| | - Nan Xu
- Harbin Univ, Sch Geog & Tourism, Key Lab Heilongjiang Prov Cold Reg Wetlands Ecol &, Harbin, China.
| | - Huiui Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, 150040, China.
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Chen L, Zhang J, Ma P, Miao Y, Wu L, Zhou K, Yang J, Zhang M, Liu X, Jiang B, Hao M, Huang L, Ning S, Chen X, Chen X, Liu D, Wan H, Zhang L. Identification of a recessive gene RgM4G52 conferring red glume, stem, and rachis in a Triticum boeoticum mutant. FRONTIERS IN PLANT SCIENCE 2024; 15:1459505. [PMID: 39253576 PMCID: PMC11381283 DOI: 10.3389/fpls.2024.1459505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Accepted: 08/01/2024] [Indexed: 09/11/2024]
Abstract
Anthocyanins are plant secondary metabolites belonging to the polyphenol class of natural water-soluble phytopigments. The accumulation of anthocyanins in different plant tissues can improve plant survival under adverse conditions. In addition, plants with the resulting colorful morphology can be utilized as landscape plants. Triticum boeoticum (syn. Triticum monococcum ssp. aegilopoides, 2n=2x=14, AbAb) serves as a valuable genetic resource for the improvement of its close relative common wheat in terms of enhancing resilience to various biotic and abiotic stresses. In our previous study, the EMS-mutagenized mutant Z2921 with a red glume, stem, and rachis was generated from T. boeoticum G52, which has a green glume, stem, and rachis. In this study, the F1, F2, and F2:3 generations of a cross between mutant-type Z2921 and wild-type G52 were developed. A single recessive gene, tentatively designated RgM4G52, was identified in Z2921 via genetic analysis. Using bulked segregant exome capture sequencing (BSE-Seq) analysis, RgM4G52 was mapped to chromosome 6AL and was flanked by the markers KASP-58 and KASP-26 within a 3.40-cM genetic interval corresponding to 1.71-Mb and 1.61-Mb physical regions in the Chinese Spring (IWGSC RefSeq v1.1) and Triticum boeoticum (TA299) reference genomes, respectively, in which seven and four genes related to anthocyanin synthesis development were annotated. Unlike previously reported color morphology-related genes, RgM4G52 is a recessive gene that can simultaneously control the color of glumes, stems, and rachis in wild einkorn. In addition, a synthetic Triticum dicoccum-T. boeoticum amphiploid Syn-ABAb-34, derived from the colchicine treatment of F1 hybrids between tetraploid wheat PI 352367 (T. dicoccum, AABB) and Z2921, expressed the red stems of Z2921. The flanking markers of RgM4G52 developed in this study could be useful for developing additional common wheat lines with red stems, laying the foundation for marker-assisted breeding and the fine mapping of RgM4G52.
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Affiliation(s)
- Longyu Chen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Junqing Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Pan Ma
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Yongping Miao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Lei Wu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Ke Zhou
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Jiaru Yang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Minghu Zhang
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Xin Liu
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Bo Jiang
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Ming Hao
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Lin Huang
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Shunzong Ning
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Xuejiao Chen
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Xue Chen
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Dengcai Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Hongshen Wan
- Key Laboratory of Wheat Biology and Genetic Improvement on Southwestern China (Ministry of Agriculture and Rural Affairs), Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, China
- Environment-Friendly Crop Germplasm Innovation and Genetic Improvement Key Laboratory of Sichuan Province, Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, China
| | - Lianquan Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
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20
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Zhang D, Zhou H, Zhou D, Wu J, Liu L, Guo Y, Wang T, Tan C, Chen D, Ge X, Yan M. The introgression of BjMYB113 from Brassica juncea leads to purple leaf trait in Brassica napus. BMC PLANT BIOLOGY 2024; 24:735. [PMID: 39090544 PMCID: PMC11295638 DOI: 10.1186/s12870-024-05418-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Accepted: 07/15/2024] [Indexed: 08/04/2024]
Abstract
The purple leaves of Brassica napus are abundant in anthocyanins, which are renowned for their role in conferring distinct colors, stress tolerance, and health benefits, however the genetic basis of this trait in B. napus remains largely unelucidated. Herein, the purple leaf B. napus (PL) exhibited purple pigments in the upper epidermis and a substantial increase in anthocyanin accumulation, particularly of cyanidin, compared to green leaf B. napus (GL). The genetic control of the purple leaf trait was attributed to a semi-dominant gene, pl, which was mapped to the end of chromosome A03. However, sequencing of the fragments amplified by the markers linked to pl indicated that they were all mapped to chromosome B05 from B. juncea. Within this B05 chromosomal segment, the BjMYB113 gene-specific marker showed perfect co-segregation with the purple leaf trait in the F2 population, suggesting that the BjMYB113 introgression from B. juncea was the candidate gene for the purple leaf trait in B. napus. To further verify the function of candidate gene, CRISPR/Cas9 was performed to knock out the BjMYB113 gene in PL. The three myb113 mutants exhibited evident green leaf phenotype, absence of purple pigments in the adaxial epidermis, and a significantly reduced accumulation of anthocyanin compared to PL. Additionally, the genes involved in positive regulatory (TT8), late anthocyanin biosynthesis (DFR, ANS, UFGT), as well as transport genes (TT19) were significantly suppressed in the myb113 mutants, further confirming that BjMYB113 was response for the anthocyanin accumulation in purple leaf B. napus. This study contributes to an advanced understanding of the regulation mechanism of anthocyanin accumulation in B. napus.
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Affiliation(s)
- Dawei Zhang
- Hunan Key Laboratory of Economic Crops Genetic Improvement and Integrated Utilization, School of Life and Health Science, Hunan University of Science and Technology, Xiangtan, 411201, China
- Yuelushan Laboratory, Changsha, 410128, China
- Hunan Research Center of Heterosis Utilization in Rapeseed, Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha, 410125, China
| | - Hongfeng Zhou
- Hunan Key Laboratory of Economic Crops Genetic Improvement and Integrated Utilization, School of Life and Health Science, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Dinggang Zhou
- Hunan Key Laboratory of Economic Crops Genetic Improvement and Integrated Utilization, School of Life and Health Science, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Jinfeng Wu
- Hunan Key Laboratory of Economic Crops Genetic Improvement and Integrated Utilization, School of Life and Health Science, Hunan University of Science and Technology, Xiangtan, 411201, China
- Yuelushan Laboratory, Changsha, 410128, China
| | - Lili Liu
- Hunan Key Laboratory of Economic Crops Genetic Improvement and Integrated Utilization, School of Life and Health Science, Hunan University of Science and Technology, Xiangtan, 411201, China
- Yuelushan Laboratory, Changsha, 410128, China
| | - Yiming Guo
- Yuelushan Laboratory, Changsha, 410128, China
- Hunan Research Center of Heterosis Utilization in Rapeseed, Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha, 410125, China
| | - Tonghua Wang
- Yuelushan Laboratory, Changsha, 410128, China
- Hunan Research Center of Heterosis Utilization in Rapeseed, Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha, 410125, China
| | - Chen Tan
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, 341000, China
| | - Daozong Chen
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, 341000, China
| | - Xianhong Ge
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Mingli Yan
- Yuelushan Laboratory, Changsha, 410128, China.
- Hunan Research Center of Heterosis Utilization in Rapeseed, Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha, 410125, China.
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Li HL, Xu RR, Guo XL, Liu YJ, You CX, Han Y, An JP. The MdNAC72-MdABI5 module acts as an interface integrating jasmonic acid and gibberellin signals and undergoes ubiquitination-dependent degradation regulated by MdSINA2 in apple. THE NEW PHYTOLOGIST 2024; 243:997-1016. [PMID: 38849319 DOI: 10.1111/nph.19888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Accepted: 05/20/2024] [Indexed: 06/09/2024]
Abstract
Jasmonic acid (JA) and gibberellin (GA) coordinately regulate plant developmental programs and environmental cue responses. However, the fine regulatory network of the cross-interaction between JA and GA remains largely elusive. In this study, we demonstrate that MdNAC72 together with MdABI5 positively regulates anthocyanin biosynthesis through an exquisite MdNAC72-MdABI5-MdbHLH3 transcriptional cascade in apple. MdNAC72 interacts with MdABI5 to promote the transcriptional activation of MdABI5 on its target gene MdbHLH3 and directly activates the transcription of MdABI5. The MdNAC72-MdABI5 module regulates the integration of JA and GA signals in anthocyanin biosynthesis by combining with JA repressor MdJAZ2 and GA repressor MdRGL2a. MdJAZ2 disrupts the MdNAC72-MdABI5 interaction and attenuates the transcriptional activation of MdABI5 by MdNAC72. MdRGL2a sequesters MdJAZ2 from the MdJAZ2-MdNAC72 protein complex, leading to the release of MdNAC72. The E3 ubiquitin ligase MdSINA2 is responsive to JA and GA signals and promotes ubiquitination-dependent degradation of MdNAC72. The MdNAC72-MdABI5 interface fine-regulates the integration of JA and GA signals at the transcriptional and posttranslational levels by combining MdJAZ2, MdRGL2a, and MdSINA2. In summary, our findings elucidate the fine regulatory network connecting JA and GA signals with MdNAC72-MdABI5 as the core in apple.
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Affiliation(s)
- Hong-Liang Li
- State Key Laboratory of Plant Diversity and Specialty Crops, CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of Chinese Academy of Sciences, Wuhan, 430074, China
- Apple technology innovation center of Shandong Province, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
| | - Rui-Rui Xu
- College of Biology and Oceanography, Weifang University, Weifang, 261061, Shandong, China
| | - Xin-Long Guo
- Apple technology innovation center of Shandong Province, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
| | - Ya-Jing Liu
- School of Horticulture, Anhui Agricultural University, He-Fei, 230036, Anhui, China
| | - Chun-Xiang You
- Apple technology innovation center of Shandong Province, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
| | - Yuepeng Han
- State Key Laboratory of Plant Diversity and Specialty Crops, CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of Chinese Academy of Sciences, Wuhan, 430074, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Jian-Ping An
- State Key Laboratory of Plant Diversity and Specialty Crops, CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of Chinese Academy of Sciences, Wuhan, 430074, China
- Apple technology innovation center of Shandong Province, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
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Zhang Z, Liang C, Ren Y, Lv Z, Huang J. Interaction of ubiquitin-like protein SILENCING DEFECTIVE 2 with LIKE HETEROCHROMATIN PROTEIN 1 is required for regulation of anthocyanin biosynthesis in Arabidopsis thaliana in response to sucrose. THE NEW PHYTOLOGIST 2024; 243:1374-1386. [PMID: 38558017 DOI: 10.1111/nph.19725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 03/13/2024] [Indexed: 04/04/2024]
Abstract
The regulatory mechanisms of anthocyanin biosynthesis have been well documented at the transcriptional and translational levels. By contrast, how anthocyanin biosynthesis is epigenetically regulated remains largely unknown. In this study, we employed genetic, molecular biology, and chromatin immunoprecipitation-quantitative polymerase chain reaction assays to identify a regulatory module essential for repressing the expression of genes involved in anthocyanin biosynthesis through chromatin remodeling. We found that SILENCING DEFECTIVE 2 (SDE2), which was previously identified as a negative regulator for sucrose-induced anthocyanin accumulation in Arabidopsis, is cleaved into N-terminal SDE2-UBL and C-terminal SDE2-C fragments at the first diglycine motif, and the cleaved SDE2-C, which can fully complement the sde2 mutant, is localized in the nucleus and physically interacts with LIKE HETEROCHROMATIN PROTEIN 1 (LHP1) in vitro and in vivo. Genetic analyses showed that both SDE2 and LHP1 act as negative factors for anthocyanin biosynthesis. Consistently, immunoblot analysis revealed that the level of LHP1-bound histone H3 lysine 27 trimethylation (H3K27me3) significantly decreases in sde2 and lhp1 mutants, compared to wild-type (WT). In addition, we found that sugar can induce expression of SDE2 and LHP1, and enhance the level of the nucleus-localized SDE2-C. Taken together, our data suggest that the SDE2-C-LHP1 module is required for repression of gene expression through H3K27me3 modification during sugar-induced anthocyanin biosynthesis in Arabidopsis thaliana.
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Affiliation(s)
- Zhiyi Zhang
- Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences, Shanghai Normal University, Shanghai, 200234, China
| | - Chengcheng Liang
- Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences, Shanghai Normal University, Shanghai, 200234, China
| | - Yulong Ren
- Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences, Shanghai Normal University, Shanghai, 200234, China
| | - Zhaojun Lv
- Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences, Shanghai Normal University, Shanghai, 200234, China
| | - Jirong Huang
- Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences, Shanghai Normal University, Shanghai, 200234, China
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23
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Winkler TS, Vollmer SK, Dyballa-Rukes N, Metzger S, Stetter MG. Isoform-resolved genome annotation enables mapping of tissue-specific betalain regulation in amaranth. THE NEW PHYTOLOGIST 2024; 243:1082-1100. [PMID: 38584577 DOI: 10.1111/nph.19736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 03/16/2024] [Indexed: 04/09/2024]
Abstract
Betalains are coloring pigments produced in some families of the order Caryophyllales, where they replace anthocyanins as coloring pigments. While the betalain pathway itself is well studied, the tissue-specific regulation of the pathway remains mostly unknown. We enhance the high-quality Amaranthus hypochondriacus reference genome and produce a substantially more complete genome annotation, incorporating isoform details. We annotate betalain and anthocyanin pathway genes along with their regulators in amaranth and map the genetic control and tissue-specific regulation of the betalain pathway. Our improved genome annotation allowed us to identify causal mutations that lead to a knock-out of red betacyanins in natural accessions of amaranth. We reveal the tissue-specific regulation of flower color via a previously uncharacterized MYB transcription factor, AhMYB2. Downregulation of AhMYB2 in the flower leads to reduced expression of key betalain enzyme genes and loss of red flower color. Our improved amaranth reference genome represents the most complete genome of amaranth to date and is a valuable resource for betalain and amaranth research. High similarity of the flower betalain regulator AhMYB2 to anthocyanin regulators and a partially conserved interaction motif support the co-option of anthocyanin regulators for the betalain pathway as a possible reason for the mutual exclusiveness of the two pigments.
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Affiliation(s)
- Tom S Winkler
- Institute for Plant Sciences and Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Cologne, 50674, Germany
| | - Susanne K Vollmer
- Institute for Plant Sciences and Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Cologne, 50674, Germany
- Heinrich Heine University, Duesseldorf, 40225, Germany
| | - Nadine Dyballa-Rukes
- MS Platform, Institute for Plant Sciences and Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Cologne, 50674, Germany
| | - Sabine Metzger
- MS Platform, Institute for Plant Sciences and Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Cologne, 50674, Germany
| | - Markus G Stetter
- Institute for Plant Sciences and Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Cologne, 50674, Germany
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Kim JS, Chae S, Jo JE, Kim KD, Song SI, Park SH, Choi SB, Jun KM, Shim SH, Jeon JS, Lee GS, Kim YK. OsMYB14, an R2R3-MYB transcription factor, regulates plant height through the control of hormone metabolism in rice. Mol Cells 2024; 47:100093. [PMID: 39004308 PMCID: PMC11342784 DOI: 10.1016/j.mocell.2024.100093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/26/2024] [Accepted: 07/09/2024] [Indexed: 07/16/2024] Open
Abstract
Plant growth must be regulated throughout the plant life cycle. The myeloblastosis (MYB) transcription factor (TF) family is one of the largest TF families and is involved in metabolism, lignin biosynthesis, and developmental processes. Here, we showed that OsMYB14, a rice R2R3-MYB TF, was expressed in leaves and roots, especially in rice culm and panicles, and that it localized to the nucleus. Overexpression of OsMYB14 (OsMYB14-ox) in rice resulted in a 30% reduction in plant height compared to that of the wild type (WT), while the height of the osmyb14-knockout (osmyb14-ko) mutant generated using the CRISPR/Cas9 system was not significantly different. Microscopic observations of the first internode revealed that the cell size did not differ significantly among the lines. RNA sequencing analysis revealed that genes associated with plant development, regulation, lipid metabolism, carbohydrate metabolism, and gibberellin (GA) and auxin metabolic processes were downregulated in the OsMYB14-ox line. Hormone quantitation revealed that inactive GA19 accumulated in OsMYB14-ox but not in the WT or knockout plants, suggesting that GA20 generation was repressed. Indole-3-acetic acid (IAA) and IAA-aspartate accumulated in OsMYB14-ox and osmyb14-ko, respectively. Indeed, real-time PCR analysis revealed that the expression of OsGA20ox1, encoding GA20 oxidase 1, and OsGH3-2, encoding IAA-amido synthetase, was downregulated in OsMYB14-ox and upregulated in osmyb14-ko. A protein-binding microarray revealed the presence of a consensus DNA-binding sequence, the ACCTACC-like motif, in the promoters of the OsGA20ox1 and GA20ox2 genes. These results suggest that OsMYB14 may act as a negative regulator of biological processes affecting plant height in rice by regulating GA biosynthesis and auxin metabolism.
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Affiliation(s)
- Joung Sug Kim
- Department of Biosciences and Bioinformatics, Myongji University, Yongin, Gyeonggi-do 17058, Republic of Korea
| | - Songhwa Chae
- Department of Biosciences and Bioinformatics, Myongji University, Yongin, Gyeonggi-do 17058, Republic of Korea
| | - Jae Eun Jo
- Department of Biosciences and Bioinformatics, Myongji University, Yongin, Gyeonggi-do 17058, Republic of Korea
| | - Kyung Do Kim
- Department of Biosciences and Bioinformatics, Myongji University, Yongin, Gyeonggi-do 17058, Republic of Korea
| | - Sang-Ik Song
- Department of Biosciences and Bioinformatics, Myongji University, Yongin, Gyeonggi-do 17058, Republic of Korea
| | - Su Hyun Park
- Department of Biosciences and Bioinformatics, Myongji University, Yongin, Gyeonggi-do 17058, Republic of Korea
| | - Sang-Bong Choi
- Department of Biosciences and Bioinformatics, Myongji University, Yongin, Gyeonggi-do 17058, Republic of Korea
| | - Kyong Mi Jun
- Genomics Genetics Institute, GreenGene Biotech Inc, Yongin, Gyeonggi-do 17058, Republic of Korea
| | - Su-Hyeon Shim
- Graduate School of Green-Bio Science and Crop Biotech Institute, Kyung Hee University, Yongin, Gyeonggi-do 17104, Republic of Korea
| | - Jong-Seong Jeon
- Graduate School of Green-Bio Science and Crop Biotech Institute, Kyung Hee University, Yongin, Gyeonggi-do 17104, Republic of Korea
| | - Gang-Seob Lee
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Jeonju, Jeollabuk-do 54875, Republic of Korea
| | - Yeon-Ki Kim
- Department of Biosciences and Bioinformatics, Myongji University, Yongin, Gyeonggi-do 17058, Republic of Korea.
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Tariq A, Meng M, Jiang X, Bolger A, Beier S, Buchmann JP, Fernie AR, Wen W, Usadel B. In-depth exploration of the genomic diversity in tea varieties based on a newly constructed pangenome of Camellia sinensis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:2096-2115. [PMID: 38872506 DOI: 10.1111/tpj.16874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 05/21/2024] [Accepted: 05/25/2024] [Indexed: 06/15/2024]
Abstract
Tea, one of the most widely consumed beverages globally, exhibits remarkable genomic diversity in its underlying flavour and health-related compounds. In this study, we present the construction and analysis of a tea pangenome comprising a total of 11 genomes, with a focus on three newly sequenced genomes comprising the purple-leaved assamica cultivar "Zijuan", the temperature-sensitive sinensis cultivar "Anjibaicha" and the wild accession "L618" whose assemblies exhibited excellent quality scores as they profited from latest sequencing technologies. Our analysis incorporates a detailed investigation of transposon complement across the tea pangenome, revealing shared patterns of transposon distribution among the studied genomes and improved transposon resolution with long read technologies, as shown by long terminal repeat (LTR) Assembly Index analysis. Furthermore, our study encompasses a gene-centric exploration of the pangenome, exploring the genomic landscape of the catechin pathway with our study, providing insights on copy number alterations and gene-centric variants, especially for Anthocyanidin synthases. We constructed a gene-centric pangenome by structurally and functionally annotating all available genomes using an identical pipeline, which both increased gene completeness and allowed for a high functional annotation rate. This improved and consistently annotated gene set will allow for a better comparison between tea genomes. We used this improved pangenome to capture the core and dispensable gene repertoire, elucidating the functional diversity present within the tea species. This pangenome resource might serve as a valuable resource for understanding the fundamental genetic basis of traits such as flavour, stress tolerance, and disease resistance, with implications for tea breeding programmes.
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Affiliation(s)
- Arslan Tariq
- HHU Düsseldorf, Faculty of Mathematics and Natural Sciences, CEPLAS, Heinrich Heine University, Universitätsstrasse 1, Düsseldorf, Germany
| | - Minghui Meng
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xiaohui Jiang
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Anthony Bolger
- Institute of Bio- and Geosciences, IBG-4: Bioinformatics, CEPLAS, Forschungszentrum Jülich, Leo Brandt-Straße, Jülich, 52425, Germany
| | - Sebastian Beier
- Institute of Bio- and Geosciences, IBG-4: Bioinformatics, CEPLAS, Forschungszentrum Jülich, Leo Brandt-Straße, Jülich, 52425, Germany
| | - Jan P Buchmann
- HHU Düsseldorf, Faculty of Mathematics and Natural Sciences, CEPLAS, Heinrich Heine University, Universitätsstrasse 1, Düsseldorf, Germany
| | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology, Am Muehlenberg 1, Potsdam-Golm, 14476, Germany
| | - Weiwei Wen
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Björn Usadel
- HHU Düsseldorf, Faculty of Mathematics and Natural Sciences, CEPLAS, Heinrich Heine University, Universitätsstrasse 1, Düsseldorf, Germany
- Institute of Bio- and Geosciences, IBG-4: Bioinformatics, CEPLAS, Forschungszentrum Jülich, Leo Brandt-Straße, Jülich, 52425, Germany
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26
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Li J, Chen C, Zeng Z, Wu F, Feng J, Liu B, Mai Y, Chu X, Wei W, Li X, Liang Y, Liu Y, Xu J, Xia R. SapBase: A central portal for functional and comparative genomics of Sapindaceae species. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:1561-1570. [PMID: 38804840 DOI: 10.1111/jipb.13680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 04/06/2024] [Accepted: 04/23/2024] [Indexed: 05/29/2024]
Abstract
The Sapindaceae family, encompassing a wide range of plant forms such as herbs, vines, shrubs, and trees, is widely distributed across tropical and subtropical regions. This family includes economically important crops like litchi, longan, rambutan, and ackee. With the wide application of genomic technologies in recent years, several Sapindaceae plant genomes have been decoded, leading to an accumulation of substantial omics data in this field. This surge in data highlights the pressing need for a unified genomic data center capable of storing, sharing, and analyzing these data. Here, we introduced SapBase, that is, the Sapindaceae Genome Database. SapBase houses seven published plant genomes alongside their corresponding gene structure and functional annotations, small RNA annotations, gene expression profiles, gene pathways, and synteny block information. It offers user-friendly features for gene information mining, co-expression analysis, and inter-species comparative genomic analysis. Furthermore, we showcased SapBase's extensive capacities through a detailed bioinformatic analysis of a MYB gene in litchi. Thus, SapBase could serve as an integrative genomic resource and analysis platform for the scientific exploration of Sapinaceae species and their comparative studies with other plants.
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Affiliation(s)
- Jiawei Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Horticulture, South China Agricultural University, Guangzhou, 510640, China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510640, China
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China at the Ministry of Agriculture and Rural Affairs, South China Agricultural University, College of Horticulture, Guangzhou, 510640, China
| | - Chengjie Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Horticulture, South China Agricultural University, Guangzhou, 510640, China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510640, China
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China at the Ministry of Agriculture and Rural Affairs, South China Agricultural University, College of Horticulture, Guangzhou, 510640, China
| | - Zaohai Zeng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Horticulture, South China Agricultural University, Guangzhou, 510640, China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510640, China
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China at the Ministry of Agriculture and Rural Affairs, South China Agricultural University, College of Horticulture, Guangzhou, 510640, China
| | - Fengqi Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Horticulture, South China Agricultural University, Guangzhou, 510640, China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510640, China
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China at the Ministry of Agriculture and Rural Affairs, South China Agricultural University, College of Horticulture, Guangzhou, 510640, China
| | - Junting Feng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Horticulture, South China Agricultural University, Guangzhou, 510640, China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510640, China
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China at the Ministry of Agriculture and Rural Affairs, South China Agricultural University, College of Horticulture, Guangzhou, 510640, China
| | - Bo Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Horticulture, South China Agricultural University, Guangzhou, 510640, China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510640, China
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China at the Ministry of Agriculture and Rural Affairs, South China Agricultural University, College of Horticulture, Guangzhou, 510640, China
| | - Yingxiao Mai
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Horticulture, South China Agricultural University, Guangzhou, 510640, China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510640, China
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China at the Ministry of Agriculture and Rural Affairs, South China Agricultural University, College of Horticulture, Guangzhou, 510640, China
| | - Xinyi Chu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Horticulture, South China Agricultural University, Guangzhou, 510640, China
| | - Wanchun Wei
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Horticulture, South China Agricultural University, Guangzhou, 510640, China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510640, China
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China at the Ministry of Agriculture and Rural Affairs, South China Agricultural University, College of Horticulture, Guangzhou, 510640, China
| | - Xin Li
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China at the Ministry of Agriculture and Rural Affairs, South China Agricultural University, College of Horticulture, Guangzhou, 510640, China
| | - Yanyang Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Horticulture, South China Agricultural University, Guangzhou, 510640, China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510640, China
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China at the Ministry of Agriculture and Rural Affairs, South China Agricultural University, College of Horticulture, Guangzhou, 510640, China
| | - YuanLong Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Horticulture, South China Agricultural University, Guangzhou, 510640, China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510640, China
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China at the Ministry of Agriculture and Rural Affairs, South China Agricultural University, College of Horticulture, Guangzhou, 510640, China
| | - Jing Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Horticulture, South China Agricultural University, Guangzhou, 510640, China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510640, China
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China at the Ministry of Agriculture and Rural Affairs, South China Agricultural University, College of Horticulture, Guangzhou, 510640, China
| | - Rui Xia
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Horticulture, South China Agricultural University, Guangzhou, 510640, China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510640, China
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China at the Ministry of Agriculture and Rural Affairs, South China Agricultural University, College of Horticulture, Guangzhou, 510640, China
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Zhang Z, Li ZY, Zhang FJ, Zheng PF, Ma N, Li L, Li H, Sun P, Zhang S, Wang XF, Lu XY, You CX. A viroid-derived small interfering RNA targets bHLH transcription factor MdPIF1 to regulate anthocyanin biosynthesis in Malus domestica. PLANT, CELL & ENVIRONMENT 2024. [PMID: 39049759 DOI: 10.1111/pce.15051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 07/01/2024] [Accepted: 07/09/2024] [Indexed: 07/27/2024]
Abstract
Fruit colour is a critical determinant for the appearance quality and commercial value of apple fruits. Viroid-induced dapple symptom severely affects the fruit coloration, however, the underlying mechanism remains unknown. In this study, we identified an apple dimple fruit viroid (ADFVd)-derived small interfering RNA, named vsiR693, which targeted the mRNA coding for a bHLH transcription factor MdPIF1 (PHYTOCHROME-INTERACTING FACTOR 1) to regulate anthocyanin biosynthesis in apple. 5' RLM-RACE and artificial microRNA transient expression system proved that vsiR693 directly targeted the mRNA of MdPIF1 for cleavage. MdPIF1 positively regulated anthocyanin biosynthesis in both apple calli and fruits, and it directly bound to G-box element in the promoter of MdPAL and MdF3H, two anthocyanin biosynthetic genes, to promote their transcription. Expression of vsiR693 negatively regulated anthocyanin biosynthesis in both apple calli and fruits. Furthermore, co-expression of vsiR693 and MdPIF1 suppressed MdPIF1-promoted anthocyanin biosynthesis in apple fruits. Infiltration of ADFVd infectious clone suppressed coloration surrounding the injection sites in apple fruits, while a mutated version of ADFVd, in which the vsiR693 producing region was mutated, failed to repress fruit coloration around the injection sites. These data provide evidence that a viroid-derived small interfering RNA targets host transcription factor to regulate anthocyanin biosynthesis in apple.
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Affiliation(s)
- Zhenlu Zhang
- National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
| | - Zhao-Yang Li
- National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
| | - Fu-Jun Zhang
- National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
- Department of Horticulture, College of Agriculture, Shihezi University, Shihezi, China
| | - Peng-Fei Zheng
- National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
| | - Ning Ma
- National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
| | - Lianzhen Li
- National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
| | - Haojian Li
- National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
| | - Ping Sun
- National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
| | - Shuai Zhang
- National Key Laboratory of Wheat Improvement, College of Chemistry and Material Science, Shandong Agricultural University, Tai'an, China
| | - Xiao-Fei Wang
- National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
| | - Xiao-Yan Lu
- Department of Horticulture, College of Agriculture, Shihezi University, Shihezi, China
| | - Chun-Xiang You
- National Key Laboratory of Wheat Improvement, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
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28
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Krishnamoorthi S, Tan GZH, Dong Y, Leong R, Wu TY, Urano D. Hyperspectral imaging of liverwort Marchantia polymorpha identifies MpWRKY10 as a key regulator defining Foliar pigmentation patterns. Cell Rep 2024; 43:114463. [PMID: 38985675 DOI: 10.1016/j.celrep.2024.114463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 05/10/2024] [Accepted: 06/24/2024] [Indexed: 07/12/2024] Open
Abstract
Foliar pigmentation patterns vary among plant species and growth conditions. In this study, we utilize hyperspectral imaging to assess foliar pigmentation in the bryophyte Marchantia polymorpha under nutrient stress and identify associated genetic factors. Using singular value decomposition (SVD) for feature selection, we quantitate color variations induced by deficiencies in phosphate, nitrate, magnesium, calcium, and iron. Pseudo-colored thallus images show that disrupting MpWRKY10 causes irregular pigmentation with auronidin accumulation. Transcriptomic profiling shows that MpWRKY10 regulates phenylpropanoid pathway enzymes and R2R3-MYB transcription factors during phosphate deficiency, with MpMYB14 upregulation preceding pigment accumulation. MpWRKY10 is downregulated in older, pigmented thalli under phosphate deficiency but maintained in young thalli, where it suppresses pigmentation genes. This downregulation is absent in pigmented thalli due to aging. Comparative transcriptome analysis suggests similar WRKY and MYB roles in nutrient response and pigmentation in red-leaf lettuce, alluding to conserved genetic factors controlling foliar pigmentation patterns under nutrient deficiency.
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Affiliation(s)
| | | | - Yating Dong
- Temasek Life Sciences Laboratory, Singapore 117604, Singapore
| | - Richalynn Leong
- Temasek Life Sciences Laboratory, Singapore 117604, Singapore; Department of Biological Sciences, National University of Singapore, Singapore 117558, Singapore
| | - Ting-Ying Wu
- Temasek Life Sciences Laboratory, Singapore 117604, Singapore
| | - Daisuke Urano
- Temasek Life Sciences Laboratory, Singapore 117604, Singapore; Department of Biological Sciences, National University of Singapore, Singapore 117558, Singapore.
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29
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Marin-Recinos MF, Pucker B. Genetic factors explaining anthocyanin pigmentation differences. BMC PLANT BIOLOGY 2024; 24:627. [PMID: 38961369 PMCID: PMC11221117 DOI: 10.1186/s12870-024-05316-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 06/20/2024] [Indexed: 07/05/2024]
Abstract
BACKGROUND Anthocyanins are important contributors to coloration across a wide phylogenetic range of plants. Biological functions of anthocyanins span from reproduction to protection against biotic and abiotic stressors. Owing to a clearly visible phenotype of mutants, the anthocyanin biosynthesis and its sophisticated regulation have been studied in numerous plant species. Genes encoding the anthocyanin biosynthesis enzymes are regulated by a transcription factor complex comprising MYB, bHLH and WD40 proteins. RESULTS A systematic comparison of anthocyanin-pigmented vs. non-pigmented varieties was performed within numerous plant species covering the taxonomic diversity of flowering plants. The literature was screened for cases in which genetic factors causing anthocyanin loss were reported. Additionally, transcriptomic data sets from four previous studies were reanalyzed to determine the genes possibly responsible for color variation based on their expression pattern. The contribution of different structural and regulatory genes to the intraspecific pigmentation differences was quantified. Differences concerning transcription factors are by far the most frequent explanation for pigmentation differences observed between two varieties of the same species. Among the transcription factors in the analyzed cases, MYB genes are significantly more prone to account for pigmentation differences compared to bHLH or WD40 genes. Among the structural genes, DFR genes are most often associated with anthocyanin loss. CONCLUSIONS These findings support previous assumptions about the susceptibility of transcriptional regulation to evolutionary changes and its importance for the evolution of novel coloration phenotypes. Our findings underline the particular significance of MYBs and their apparent prevalent role in the specificity of the MBW complex.
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Affiliation(s)
- Maria F Marin-Recinos
- Plant Biotechnology and Bioinformatics, Institute of Plant Biology and BRICS, TU Braunschweig, Braunschweig, Germany
| | - Boas Pucker
- Plant Biotechnology and Bioinformatics, Institute of Plant Biology and BRICS, TU Braunschweig, Braunschweig, Germany.
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30
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Fattorini R, Khojayori FN, Mellers G, Moyroud E, Herrero E, Kellenberger RT, Walker R, Wang Q, Hill L, Glover BJ. Complex petal spot formation in the Beetle Daisy (Gorteria diffusa) relies on spot-specific accumulation of malonylated anthocyanin regulated by paralogous GdMYBSG6 transcription factors. THE NEW PHYTOLOGIST 2024; 243:240-257. [PMID: 38725421 DOI: 10.1111/nph.19804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 04/18/2024] [Indexed: 06/07/2024]
Abstract
Gorteria diffusa has elaborate petal spots that attract pollinators through sexual deception, but how G. diffusa controls spot development is largely unknown. Here, we investigate how pigmentation is regulated during spot formation. We determined the anthocyanin composition of G. diffusa petals and combined gene expression analysis with protein interaction assays to characterise R2R3-MYBs that likely regulate pigment production in G. diffusa petal spots. We found that cyanidin 3-glucoside pigments G. diffusa ray floret petals. Unlike other petal regions, spots contain a high proportion of malonylated anthocyanin. We identified three subgroup 6 R2R3-MYB transcription factors (GdMYBSG6-1,2,3) that likely activate the production of spot pigmentation. These genes are upregulated in developing spots and induce ectopic anthocyanin production upon heterologous expression in tobacco. Interaction assays suggest that these transcription factors regulate genes encoding three anthocyanin synthesis enzymes. We demonstrate that the elaboration of complex spots in G. diffusa begins with the accumulation of malonylated pigments at the base of ray floret petals, positively regulated by three paralogous R2R3-MYB transcription factors. Our results indicate that the functional diversification of these GdMYBSG6s involved changes in the spatial control of their transcription, and modification of the duration of GdMYBSG6 gene expression contributes towards floral variation within the species.
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Affiliation(s)
- Róisín Fattorini
- Department of Plant Sciences, University of Cambridge, Downing St., Cambridge, CB2 3EA, UK
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, L69 7ZB, UK
- Department of Biology, University of Oxford, South Parks Road, Oxford, OX1 3RB, UK
| | - Farahnoz N Khojayori
- Department of Plant Sciences, University of Cambridge, Downing St., Cambridge, CB2 3EA, UK
| | - Gregory Mellers
- Department of Plant Sciences, University of Cambridge, Downing St., Cambridge, CB2 3EA, UK
| | - Edwige Moyroud
- Sainsbury Laboratory Cambridge University, Bateman St., Cambridge, CB2 1LR, UK
- Department of Genetics, University of Cambridge, Downing St., Cambridge, CB2 3EH, UK
| | - Eva Herrero
- Department of Plant Sciences, University of Cambridge, Downing St., Cambridge, CB2 3EA, UK
| | - Roman T Kellenberger
- Department of Plant Sciences, University of Cambridge, Downing St., Cambridge, CB2 3EA, UK
| | - Rachel Walker
- Department of Plant Sciences, University of Cambridge, Downing St., Cambridge, CB2 3EA, UK
| | - Qi Wang
- Department of Plant Sciences, University of Cambridge, Downing St., Cambridge, CB2 3EA, UK
| | - Lionel Hill
- Biomolecular Analysis Facility, John Innes Centre, Colney, Norwich, NR4 7UH, UK
| | - Beverley J Glover
- Department of Plant Sciences, University of Cambridge, Downing St., Cambridge, CB2 3EA, UK
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31
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Araguirang GE, Venn B, Kelber NM, Feil R, Lunn J, Kleine T, Leister D, Mühlhaus T, Richter AS. Spliceosomal complex components are critical for adjusting the C:N balance during high-light acclimation. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:153-175. [PMID: 38593295 DOI: 10.1111/tpj.16751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/25/2024] [Accepted: 03/18/2024] [Indexed: 04/11/2024]
Abstract
Plant acclimation to an ever-changing environment is decisive for growth, reproduction, and survival. Light availability limits biomass production on both ends of the intensity spectrum. Therefore, the adjustment of plant metabolism is central to high-light (HL) acclimation, and the accumulation of photoprotective anthocyanins is commonly observed. However, mechanisms and factors regulating the HL acclimation response are less clear. Two Arabidopsis mutants of spliceosome components exhibiting a pronounced anthocyanin overaccumulation in HL were isolated from a forward genetic screen for new factors crucial for plant acclimation. Time-resolved physiological, transcriptome, and metabolome analysis revealed a vital function of the spliceosome components for rapidly adjusting gene expression and metabolism. Deficiency of INCREASED LEVEL OF POLYPLOIDY1 (ILP1), NTC-RELATED PROTEIN1 (NTR1), and PLEIOTROPIC REGULATORY LOCUS1 (PRL1) resulted in a marked overaccumulation of carbohydrates and strongly diminished amino acid biosynthesis in HL. While not generally limited in N-assimilation, ilp1, ntr1, and prl1 showed higher glutamate levels and reduced amino acid biosynthesis in HL. The comprehensive analysis reveals a function of the spliceosome components in the conditional regulation of the carbon:nitrogen balance and the accumulation of anthocyanins during HL acclimation. The importance of gene expression, metabolic regulation, and re-direction of carbon towards anthocyanin biosynthesis for HL acclimation are discussed.
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Affiliation(s)
| | - Benedikt Venn
- Computational Systems Biology, RPTU Kaiserslautern, Kaiserslautern, Germany
| | | | - Regina Feil
- Metabolic Networks, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - John Lunn
- Metabolic Networks, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Tatjana Kleine
- Plant Molecular Biology (Botany), Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
| | - Dario Leister
- Plant Molecular Biology (Botany), Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
| | - Timo Mühlhaus
- Computational Systems Biology, RPTU Kaiserslautern, Kaiserslautern, Germany
| | - Andreas S Richter
- Physiology of Plant Metabolism, University of Rostock, Rostock, Germany
- Department Life, Light and Matter, Interdisciplinary Faculty, University of Rostock, Rostock, Germany
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Zhu L, Liao Y, Zhang T, Zeng Z, Wang J, Duan L, Chen X, Lin K, Liang X, Han Z, Huang Y, Wu W, Hu H, Xu ZF, Ni J. Reactive oxygen species act as the key signaling molecules mediating light-induced anthocyanin biosynthesis in Eucalyptus. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 212:108715. [PMID: 38761541 DOI: 10.1016/j.plaphy.2024.108715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 05/20/2024]
Abstract
Light plays a pivotal role in regulating anthocyanin biosynthesis in plants, and the early light-responsive signals that initiate anthocyanin biosynthesis remain to be elucidated. In this study, we showed that the anthocyanin biosynthesis in Eucalyptus is hypersensitive to increased light intensity. The combined transcriptomic and metabolomic analyses were conducted on Eucalyptus leaves after moderate (ML; 100 μmol m-2 s-1) and high (HL; 300 μmol m-2 s-1) light intensity treatments. The results identified 1940, 1096, 1173, and 2756 differentially expressed genes at 6, 12, 24, and 36 h after HL treatment, respectively. The metabolomic results revealed the primary anthocyanin types, and other differentially accumulated flavonoids and phenylpropane intermediates that were produced in response to HL, which well aligned with the transcriptome results. Moreover, biochemical analysis showed that HL inhibited peroxidase activity and increased the ROS level in Eucalyptus leaves. ROS depletion through co-application of the antioxidants rutin, uric acid, and melatonin significantly reduced, and even abolished, anthocyanin biosynthesis induced by HL treatment. Additionally, exogenous application of hydrogen peroxide efficiently induced anthocyanin biosynthesis within 24 h, even under ML conditions, suggesting that ROS played a major role in activating anthocyanin biosynthesis. A HL-responsive MYB transcription factor EgrMYB113 was identified to play an important role in regulating anthocyanin biosynthesis by targeting multiple anthocyanin biosynthesis genes. Additionally, the results demonstrated that gibberellic acid and sugar signaling contributed to HL-induced anthocyanin biosynthesis. Conclusively, these results suggested that HL triggers multiple signaling pathways to induce anthocyanin biosynthesis, with ROS acting as indispensable mediators in Eucalyptus.
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Affiliation(s)
- Linhui Zhu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, 530004, China
| | - Yuwu Liao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, 530004, China
| | - Tingting Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, 530004, China
| | - Zhiyu Zeng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, 530004, China
| | - Jianzhong Wang
- Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, 530004, China; Guangxi Dongmen Forest Farm, Chongzuo, 532108, China
| | - Lanjuan Duan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, 530004, China
| | - Xin Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, 530004, China
| | - Kai Lin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, 530004, China
| | - Xiuqing Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, 530004, China
| | - Zewei Han
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, 530004, China
| | - Yunkai Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, 530004, China
| | - Wenfei Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, 530004, China
| | - Hao Hu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, 530004, China
| | - Zeng-Fu Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, 530004, China.
| | - Jun Ni
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, 530004, China.
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Singh S, Pal L, Rajput R, Chhatwal H, Singh N, Chattopadhyay D, Pandey A. CaLAP1 and CaLAP2 orchestrate anthocyanin biosynthesis in the seed coat of Cicer arietinum. PLANTA 2024; 260:38. [PMID: 38951258 DOI: 10.1007/s00425-024-04470-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 06/17/2024] [Indexed: 07/03/2024]
Abstract
MAIN CONCLUSION Our findings shed light on the regulation of anthocyanin and proanthocyanidin biosynthesis in chickpea seed coats. Expression of R2R3-MYB transcription factors CaLAP1 and CaLAP2 enhanced the anthocyanins and proanthocyanidins content in chickpea. The seed coat color is a major economic trait in leguminous crop chickpea (Cicer arietinum). Anthocyanins and proanthocyanidins (PAs) are two classes of flavonoids that mainly contribute to the flower, seed coat and color of Desi chickpea cultivars. Throughout the land plant lineage, the accumulation of anthocyanins and PAs is regulated by MYB and bHLH transcription factors (TFs), which form an MBW (MYB, bHLH, and WD40) complex. Here, we report two R2R3-MYB TFs in chickpea belonging to the anthocyanin-specific subgroup-6, CaLAP1 (Legume Anthocyanin Production 1), and CaLAP2 (Legume Anthocyanin Production 2), which are mainly expressed in the flowers and developmental stages of the seeds. CaLAP1 and CaLAP2 interact with TT8-like CabHLH1 and WD40, forming the MBW complex, and bind to the promoter sequences of anthocyanin- and PA biosynthetic genes CaCHS6, CaDFR2, CaANS, and CaANR, leading to anthocyanins and PA accumulation in the seed coat of chickpea. Moreover, these CaLAPs partially complement the anthocyanin-deficient phenotype in the Arabidopsis thaliana sextuple mutant seedlings. Overexpression of CaLAPs in chickpea resulted in significantly higher expression of anthocyanin and PA biosynthetic genes leading to a darker seed coat color with higher accumulation of anthocyanin and PA. Our findings show that CaLAPs positively modulate anthocyanin and PA content in seed coats, which might influence plant development and resistance to various biotic and abiotic stresses.
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Affiliation(s)
- Samar Singh
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Lalita Pal
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Ruchika Rajput
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Himani Chhatwal
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Nidhi Singh
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Debasis Chattopadhyay
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India.
| | - Ashutosh Pandey
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India.
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Zhang D, Sun L, Xi D, Li X, Gao L, Miao L, Luo Y, Tian M, Zhu H. Methyl jasmonate-induced bHLH42 mediates tissue-specific accumulation of anthocyanins via regulating flavonoid metabolism-related pathways in Caitai. PHYSIOLOGIA PLANTARUM 2024; 176:e14434. [PMID: 38981863 DOI: 10.1111/ppl.14434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 06/19/2024] [Accepted: 06/30/2024] [Indexed: 07/11/2024]
Abstract
Anthocyanin is a type of plant secondary metabolite beneficial to human health. The anthocyanin content of vegetable and fruit crops signifies their nutritional quality. However, the molecular mechanism of anthocyanin accumulation, especially tissue-specific accumulation, in Caitai, as well as in other Brassica rapa varieties, remains elusive. In the present study, taking advantage of three kinds of Caitai cultivars with diverse colour traits between leaves and stems, we conducted a comparative transcriptome analysis and identified the molecular pathway of anthocyanin biosynthesis in Caitai leaves and stems, respectively. Our further investigations demonstrate that bHLH42, which is robustly induced by MeJA, closely correlates with tissue-specific accumulation of anthocyanins in Caitai; bHLH42 upregulates the expression of flavonoid/anthocyanin biosynthetic pathway genes to activate anthocyanin biosynthesis pathway, importantly, overexpression of bHLH42 significantly improves the anthocyanin content of Caitai. Our analysis convincingly suggests that bHLH42 induced by jasmonic acid signalling plays a crucial role in tissue-specific accumulation of anthocyanins in Caitai.
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Affiliation(s)
- Dingyu Zhang
- Shanghai Key Laboratory of Protected Horticultural Technology, Horticultural Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
- State Key Laboratory of Genetic Engineering and Fudan Center for Genetic Diversity and Designing Agriculture, School of Life Sciences, Fudan University, Shanghai, China
| | - Lixue Sun
- State Key Laboratory of Genetic Engineering and Fudan Center for Genetic Diversity and Designing Agriculture, School of Life Sciences, Fudan University, Shanghai, China
| | - Dandan Xi
- Shanghai Key Laboratory of Protected Horticultural Technology, Horticultural Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Xiaofeng Li
- Shanghai Key Laboratory of Protected Horticultural Technology, Horticultural Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Lu Gao
- Shanghai Key Laboratory of Protected Horticultural Technology, Horticultural Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Liming Miao
- Shanghai Key Laboratory of Protected Horticultural Technology, Horticultural Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Yong Luo
- State Key Laboratory of Genetic Engineering and Fudan Center for Genetic Diversity and Designing Agriculture, School of Life Sciences, Fudan University, Shanghai, China
| | - Miaomiao Tian
- State Key Laboratory of Genetic Engineering and Fudan Center for Genetic Diversity and Designing Agriculture, School of Life Sciences, Fudan University, Shanghai, China
| | - Hongfang Zhu
- Shanghai Key Laboratory of Protected Horticultural Technology, Horticultural Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
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Yang G, Xue Z, Lin-Wang K, Chen G, Zhao Y, Chang Y, Xu S, Sun M, Xue C, Li J, Allan AC, Espley RV, Wu J. An 'activator-repressor' loop controls the anthocyanin biosynthesis in red-skinned pear. MOLECULAR HORTICULTURE 2024; 4:26. [PMID: 38945997 PMCID: PMC11215833 DOI: 10.1186/s43897-024-00102-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 06/07/2024] [Indexed: 07/02/2024]
Abstract
The color of red-skinned pear (Pyrus spp.) is primarily attributed to accumulation of anthocyanins, which provide nutritional benefits for human health and are closely associated with the commercial value of fruits. Here, we reported the functional characterization of a R2R3-MYB repressor PyMYB107, which forms an 'activator-repressor' loop to control anthocyanin accumulation in the red-skinned pear. PyMYB107 overexpression inhibited anthocyanin biosynthesis in both pear calli and fruits, while virus-induced gene silencing of PyMYB107 increased anthocyanin accumulation in pear fruits. Furthermore, ectopic expression of PyMYB107 decreased anthocyanin accumulation in tomato, strawberry and tobacco. PyMYB107 can competitively bind to PybHLH3 with PyMYB10/MYB114, thereby suppressing the transcriptional activation of key anthocyanin biosynthesis genes, PyANS and PyUFGT. Site-directed mutagenesis showed that mutations within the R3 domain and EAR motif of PyMYB107 eliminated its repressive activity. Additionally, PyMYB107 exhibited a comparable expression pattern to PyMYB10/MYB114 and was transcriptionally activated by them. Our finding advanced comprehension of the repression mechanism underlying anthocyanin accumulation, providing valuable molecular insights into improving quality of pear fruits.
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Affiliation(s)
- Guangyan Yang
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
- Zhongshan Biological Breeding Laboratory, Nanjing, 210014, Jiangsu, China
| | - Zhaolong Xue
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
- Zhongshan Biological Breeding Laboratory, Nanjing, 210014, Jiangsu, China
| | - Kui Lin-Wang
- The New Zealand Institute for Plant & Food Research Limited, Auckland, 1025, New Zealand
| | - Guosong Chen
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
- Zhongshan Biological Breeding Laboratory, Nanjing, 210014, Jiangsu, China
| | - Yongqi Zhao
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
- Zhongshan Biological Breeding Laboratory, Nanjing, 210014, Jiangsu, China
| | - Yaojun Chang
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shaozhuo Xu
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
| | - Manyi Sun
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
- Zhongshan Biological Breeding Laboratory, Nanjing, 210014, Jiangsu, China
| | - Cheng Xue
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, 271018, China
| | - Jiaming Li
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
- Zhongshan Biological Breeding Laboratory, Nanjing, 210014, Jiangsu, China
| | - Andrew C Allan
- The New Zealand Institute for Plant & Food Research Limited, Auckland, 1025, New Zealand
| | - Richard V Espley
- The New Zealand Institute for Plant & Food Research Limited, Auckland, 1025, New Zealand
| | - Jun Wu
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China.
- Zhongshan Biological Breeding Laboratory, Nanjing, 210014, Jiangsu, China.
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Liu Y, Wang C, Chen H, Dai G, Cuimu Q, Shen W, Gao L, Zhu B, Gao C, Chen L, Chen D, Zhang X, Tan C. Comparative transcriptome analysis reveals transcriptional regulation of anthocyanin biosynthesis in purple radish (Raphanus sativus L.). BMC Genomics 2024; 25:624. [PMID: 38902601 PMCID: PMC11188213 DOI: 10.1186/s12864-024-10519-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 06/13/2024] [Indexed: 06/22/2024] Open
Abstract
Radish exhibits significant variation in color, particularly in sprouts, leaves, petals, fleshy roots, and other tissues, displaying a range of hues such as green, white, red, purple, and black. Although extensive research has been conducted on the color variation of radish, the underlying mechanism behind the variation in radish flower color remains unclear. To date, there is a lack of comprehensive research investigating the variation mechanism of radish sprouts, leaves, fleshy roots, and flower organs. This study aims to address this gap by utilizing transcriptome sequencing to acquire transcriptome data for white and purple radish flowers. Additionally, the published transcriptome data of sprouts, leaves, and fleshy roots were incorporated to conduct a systematic analysis of the regulatory mechanisms underlying anthocyanin biosynthesis in these four radish tissues. The comparative transcriptome analysis revealed differential expression of the anthocyanin biosynthetic pathway genes DFR, UGT78D2, TT12 and CPC in the four radish tissues. Additionally, the WGCNA results identified RsDFR.9c and RsUGT78D2.2c as hub genes responsible for regulating anthocyanin biosynthesis. By integrating the findings from the comparative transcriptome analysis, WGCNA, and anthocyanin biosynthetic pathway-related gene expression patterns, it is hypothesized that genes RsDFR.9c and RsUGT78D2.2c may serve as pivotal regulators of anthocyanins in the four radish tissues. Furthermore, the tissue-specific expression of the four copies of RsPAP1 is deemed crucial in governing anthocyanin synthesis and accumulation. Our results provide new insights into the molecular mechanism of anthocyanin biosynthesis and accumulation in different tissues of radish.
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Affiliation(s)
- Yi Liu
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, China
| | - Chenchen Wang
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, China
| | - Haidong Chen
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, China
| | - Guoqiang Dai
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, China
| | - Qiushi Cuimu
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, China
| | - Wenjie Shen
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, China
| | - Liwei Gao
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, China
| | - Bo Zhu
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, China
| | - Changbin Gao
- Wuhan Vegetable Research Institute, Wuhan Academy of Agriculture Science and Technology, Wuhan, China
| | - Lunlin Chen
- Nanchang Branch of National Center of Oilcrops Improvement, Jiangxi Province Key Laboratory of Oil Crops Biology, Crops Research Institute of Jiangxi Academy of Agricultural Sciences, Nanchang, 330200, China
| | - Daozong Chen
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, China
| | - Xueli Zhang
- Wuhan Vegetable Research Institute, Wuhan Academy of Agriculture Science and Technology, Wuhan, China.
| | - Chen Tan
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, China.
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Martinez-Sanchez M, Hunter DA, Saei A, Andre CM, Varkonyi-Gasic E, Clark G, Barry E, Allan AC. SmuMYB113 is the determinant of fruit color in pepino ( Solanum muricatum). FRONTIERS IN PLANT SCIENCE 2024; 15:1408202. [PMID: 38966143 PMCID: PMC11222579 DOI: 10.3389/fpls.2024.1408202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 06/03/2024] [Indexed: 07/06/2024]
Abstract
Pepino (Solanum muricatum) is an herbaceous crop phylogenetically related to tomato and potato. Pepino fruit vary in color, size and shape, and are eaten fresh. In this study, we use pepino as a fruit model to understand the transcriptional regulatory mechanisms controlling fruit quality. To identify the key genes involved in anthocyanin biosynthesis in pepino, two genotypes were studied that contrasted in foliar and fruit pigmentation. Anthocyanin profiles were analyzed, as well as the expression of genes that encode enzymes for anthocyanin biosynthesis and transcriptional regulators using both RNA-seq and quantitative PCR. The differential expression of the transcription factor genes R2R3 MYB SmuMYB113 and R3MYB SmuATV suggested their association with purple skin and foliage phenotype. Functional analysis of these genes in both tobacco and pepino showed that SmuMYB113 activates anthocyanins, while SmuATV suppresses anthocyanin accumulation. However, despite elevated expression in all tissues, SmuMYB113 does not significantly elevate flesh pigmentation, suggesting a strong repressive background in fruit flesh tissue. These results will aid understanding of the differential regulation controlling fruit quality aspects between skin and flesh in other fruiting species.
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Affiliation(s)
- Marcela Martinez-Sanchez
- The New Zealand Institute for Plant and Food Research Limited (Plant & Food Research) Mt Albert, Auckland, New Zealand
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Donald A. Hunter
- The New Zealand Institute for Plant and Food Research Limited (Plant & Food Research), Palmerston North, New Zealand
| | - Ali Saei
- Grasslands Research Centre, AgResearch Limited, Palmerston North, New Zealand
| | - Christelle M. Andre
- The New Zealand Institute for Plant and Food Research Limited (Plant & Food Research) Mt Albert, Auckland, New Zealand
| | - Erika Varkonyi-Gasic
- The New Zealand Institute for Plant and Food Research Limited (Plant & Food Research) Mt Albert, Auckland, New Zealand
| | - Glen Clark
- The New Zealand Institute for Plant and Food Research Limited (Plant & Food Research) Mt Albert, Auckland, New Zealand
| | - Emma Barry
- The New Zealand Institute for Plant and Food Research Limited (Plant & Food Research) Mt Albert, Auckland, New Zealand
| | - Andrew C. Allan
- The New Zealand Institute for Plant and Food Research Limited (Plant & Food Research) Mt Albert, Auckland, New Zealand
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
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38
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Liu Q, Gao G, Shang C, Li T, Wang Y, Li L, Feng X. Screening and verification of proteins that interact with the anthocyanin-related transcription factor PbrMYB114 in 'Yuluxiang' pear. PeerJ 2024; 12:e17540. [PMID: 38887620 PMCID: PMC11182023 DOI: 10.7717/peerj.17540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 05/19/2024] [Indexed: 06/20/2024] Open
Abstract
Despite extensive research highlighting the pivotal role of MYB transcription factors in regulating anthocyanin biosynthesis, the interactive regulatory network involving these MYB factors in pear fruits remains inadequately characterized. In this study, the anthocyanin-regulatory gene PbrMYB114 was successfully cloned from 'Yuluxiang' pear (Pyrus bretschneideri) fruits, and its influence on anthocyanin accumulation was confirmed through transient expression assays. Specifically, the co-transformation of PbrMYB114 with its partner PbrbHLH3 in pears served to validate the functional role of PbrMYB114. Subsequently, PbrMYB114 was employed as bait in a yeast two-hybrid screening assay, using a 'Yuluxiang' pear protein library, which led to the identification of 25 interacting proteins. Further validation of the interactions between PbrMYB114 and PbrMT2/PbrMT3 was conducted. Investigations into the role of PbrMT2 and PbrMT3 in 'Duli' seedlings (Pyrus betulaefolia) revealed their potential to enhance anthocyanin accumulation. The outcomes of these studies provide novel insights into the protein network that regulates pear anthocyanin biosynthesis, particularly the functional interactions among PbrMYB114 and associated proteins.
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Affiliation(s)
- Qingwei Liu
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi Province, China
| | - Ge Gao
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi Province, China
| | - Chen Shang
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi Province, China
| | - Tong Li
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi Province, China
| | - Yadong Wang
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi Province, China
| | - Liulin Li
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi Province, China
| | - Xinxin Feng
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi Province, China
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Ma Q, Zhong S, Ma T, Yue Y, Zou S, Sui S, Ai L, Guo Y. Transcriptome Analysis Reveals That FvPAP1 Genes Are Related to the Prolongation of Red-Leaf Period in Ficus virens. Curr Issues Mol Biol 2024; 46:5724-5743. [PMID: 38921014 PMCID: PMC11202158 DOI: 10.3390/cimb46060343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 05/30/2024] [Accepted: 06/05/2024] [Indexed: 06/27/2024] Open
Abstract
Ficus virens is a deciduous tree that is highly valuable both economically and medicinally. Like other plants with 'red young leaves', the red-leaf period of most F. virens trees lasts only a few days, and the red leaves have little ornamental value. However, in recent years, some lines of F. virens with bright red young leaves and a prolonged red-leaf period have been utilized for urban greening. To explore the mechanism of the different lengths of the duration of F. virens leaves, we analyzed the physiology and changes in gene expression during the development of two varieties of leaves. The detection of anthocyanin in different developmental stages of the F. virens leaves showed that the changes in color of the red leaves of F. virens were primarily caused by the change in anthocyanin content. A transcriptome analysis showed that the expression of genes related to the biosynthesis of anthocyanin changed significantly during the development of leaves. A MYB gene FvPAP1, which was consistent with the change in anthocyanin content, was identified. A real-time quantitative reverse transcription PCR analysis and heterologous expression transgenic studies showed that FvPAP1 promoted the biosynthesis of anthocyanins. The difference in the expression of FvPAP1 in time and intensity in the young leaves may be the reason for the difference in the duration of the red-leaf period in different lines of F. virens. A sequence analysis showed that the cDNA sequence of FvPAP1 was polymorphic, and possible reasons were discussed. These results can provide insight for similar studies on the mechanism of the formation of red coloring in other woody plant leaves and provide molecular targets to breed new materials with more prolonged red-leaf periods in F. virens.
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Affiliation(s)
- Qingchao Ma
- Chongqing Key Laboratory of Germplasm Innovation and Utilization of Native Plants, Chongqing Landscape and Gardening Research Institute, Chongqing 400715, China; (Q.M.)
- Chongqing Engineering Research Center for Floriculture, College of Horticulture and Landscape, Southwest University, Chongqing 401329, China; (S.Z.); (Y.Y.); (S.S.)
| | - Shuhua Zhong
- Chongqing Engineering Research Center for Floriculture, College of Horticulture and Landscape, Southwest University, Chongqing 401329, China; (S.Z.); (Y.Y.); (S.S.)
| | - Tianci Ma
- Chongqing Engineering Research Center for Floriculture, College of Horticulture and Landscape, Southwest University, Chongqing 401329, China; (S.Z.); (Y.Y.); (S.S.)
| | - Yajie Yue
- Chongqing Engineering Research Center for Floriculture, College of Horticulture and Landscape, Southwest University, Chongqing 401329, China; (S.Z.); (Y.Y.); (S.S.)
| | - Shihui Zou
- Chongqing Key Laboratory of Germplasm Innovation and Utilization of Native Plants, Chongqing Landscape and Gardening Research Institute, Chongqing 400715, China; (Q.M.)
| | - Shunzhao Sui
- Chongqing Engineering Research Center for Floriculture, College of Horticulture and Landscape, Southwest University, Chongqing 401329, China; (S.Z.); (Y.Y.); (S.S.)
| | - Lijiao Ai
- Chongqing Key Laboratory of Germplasm Innovation and Utilization of Native Plants, Chongqing Landscape and Gardening Research Institute, Chongqing 400715, China; (Q.M.)
| | - Yulong Guo
- Chongqing Engineering Research Center for Floriculture, College of Horticulture and Landscape, Southwest University, Chongqing 401329, China; (S.Z.); (Y.Y.); (S.S.)
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Yi S, Cai Q, Yang Y, Shen H, Sun Z, Li L. Identification and Functional Characterization of the SaMYB113 Gene in Solanum aculeatissimum. PLANTS (BASEL, SWITZERLAND) 2024; 13:1570. [PMID: 38891379 PMCID: PMC11174649 DOI: 10.3390/plants13111570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 05/06/2024] [Accepted: 05/15/2024] [Indexed: 06/21/2024]
Abstract
The MYB transcription factors (TFs) have substantial functions in anthocyanin synthesis as well as being widely associated with plant responses to various adversities. In the present investigation, we found an unreported MYB TF from Solanum aculeatissimum (a wild relative of eggplant) and named it SaMYB113 in reference to its homologous gene. Bioinformatics analysis demonstrated that the open reading frame of SaMYB113 was 825 bp in length, encoding 275 amino acids, with a typical R2R3-MYB gene structure, and predicted subcellular localization in the nucleus. Analysis of the tissue-specific expression pattern through qRT-PCR showed that the SaMYB113 was expressed at a high level in young stems as well as leaves of S. aculeatissimum. Transgenic Arabidopsis and tobacco plants overexpressing SaMYB113 pertinent to the control of the 35S promoter exhibited a distinct purple color trait, suggesting a significant change in their anthocyanin content. Furthermore, we obtained three tobacco transgenic lines with significant differences in anthocyanin accumulation and analyzed the differences in anthocyanin content by LC-MS/MS. The findings demonstrated that overexpression of SaMYB113 caused tobacco to have considerably raised levels of several anthocyanin components, with the most significant increases in delphinidin-like anthocyanins and cyanidin-like anthocyanins. The qRT-PCR findings revealed significant differences in the expression levels of structural genes for anthocyanin synthesis among various transgenic lines. In summary, this study demonstrated that the SaMYB113 gene has a substantial impact on anthocyanin synthesis, and overexpression of the SaMYB113 gene leads to significant modifications to the expression levels of a variety of anthocyanin-synthesizing genes, which leads to complex changes in anthocyanin content and affects plant phenotypes. This present research offers the molecular foundation for the research of the mechanism of anthocyanin formation within plants, as well as providing some reference for the improvement of traits in solanum crops.
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Affiliation(s)
- Songheng Yi
- College of Landscape and Horticulture, Southwest Forestry University, Kunming 650224, China; (S.Y.); (Q.C.); (H.S.)
| | - Qihang Cai
- College of Landscape and Horticulture, Southwest Forestry University, Kunming 650224, China; (S.Y.); (Q.C.); (H.S.)
| | - Yanbo Yang
- College of Geography and Ecotourism, Southwest Forestry University, Kunming 650224, China;
| | - Hongquan Shen
- College of Landscape and Horticulture, Southwest Forestry University, Kunming 650224, China; (S.Y.); (Q.C.); (H.S.)
| | - Zhenghai Sun
- College of Landscape and Horticulture, Southwest Forestry University, Kunming 650224, China; (S.Y.); (Q.C.); (H.S.)
| | - Liping Li
- College of Wetland, Southwest Forestry University, Kunming 650224, China
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Zhang W, Wu J, He J, Liu C, Yi W, Xie J, Wu Y, Xie T, Ma J, Zhong Z, Yang M, Chen C, Luan A, He Y. AcMYB266, a key regulator of the red coloration in pineapple peel: a case of subfunctionalization in tandem duplicated genes. HORTICULTURE RESEARCH 2024; 11:uhae116. [PMID: 38919552 PMCID: PMC11197299 DOI: 10.1093/hr/uhae116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 04/09/2024] [Indexed: 06/27/2024]
Abstract
Red fruit peel is an attractive target for pineapple breeding. Various pineapple accessions with distinct red coloration patterns exist; however, the precise molecular mechanism accounting for these differences remains unknown, which hinders the pineapple breeding process from combining high fruit quality with red peel. In this study, we characterized a transcription factor, AcMYB266, which is preferentially expressed in pineapple peel and positively regulates anthocyanin accumulation. Transgenic pineapple, Arabidopsis, and tobacco plants overexpressing AcMYB266 exhibited significant anthocyanin accumulation. Conversely, transient silencing of this gene led to decreased anthocyanin accumulation in pineapple red bracts. In-depth analysis indicated that variations of AcMYB266 sequences in the promoter instead of the protein-coding region seem to contribute to different red coloration patterns in peels of three representative pineapple varieties. In addition, we found that AcMYB266 was located in a cluster of four MYB genes exclusive to and conserved in Ananas species. Of this cluster, each was proved to regulate anthocyanin synthesis in different pineapple tissues, illustrating an interesting case of gene subfunctionalization after tandem duplication. In summary, we have characterized AcMYB266 as a key regulator of pineapple red fruit peel and identified an MYB cluster whose members were subfunctionalized to specifically regulate the red coloration of different pineapple tissues. The present study will assist in establishing a theoretical mechanism for pineapple breeding for red fruit peel and provide an interesting case for the investigation of gene subfunctionalization in plants.
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Affiliation(s)
- Wei Zhang
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crop in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, No. 483, Wushan Road, Wushan Street, Tianhe District, Guangzhou, Guangdong, 510642, China
| | - Jing Wu
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crop in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, No. 483, Wushan Road, Wushan Street, Tianhe District, Guangzhou, Guangdong, 510642, China
| | - Junhu He
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/National Key Laboratory for Tropical Crop Breeding, Yazhouwan Technology City, Sanya, Hainan, 572024, China/Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture and Rual Affairs/Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, No.4, Xueyuan Road, Longhua District, Haikou, Hainan, 571101, China
| | - Chaoyang Liu
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crop in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, No. 483, Wushan Road, Wushan Street, Tianhe District, Guangzhou, Guangdong, 510642, China
| | - Wen Yi
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crop in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, No. 483, Wushan Road, Wushan Street, Tianhe District, Guangzhou, Guangdong, 510642, China
| | - Jingyao Xie
- School of Landscape Architecture, Guangdong Eco-Engineering Polytechnic, No. 297, Guangshan 1st Road, Tianhe District, Guangzhou, Guangdong, 510520, China
| | - Ya Wu
- Environment and plant protection institute, Chinese Academy of Tropical Agricultural Sciences, No. 4, Xueyuan Road, Longhua District, Haikou, Hainan, 571101, China
| | - Tao Xie
- Department of Horticulture, Foshan University, No. 18, Jiangwan 1st Road, Chancheng District, Foshan, Guangdong, 528231, China
| | - Jun Ma
- College of Landscape Architecture, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, Sichuan, 610000, China
| | - Ziqin Zhong
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crop in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, No. 483, Wushan Road, Wushan Street, Tianhe District, Guangzhou, Guangdong, 510642, China
| | - Mingzhe Yang
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crop in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, No. 483, Wushan Road, Wushan Street, Tianhe District, Guangzhou, Guangdong, 510642, China
| | - Chengjie Chen
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/National Key Laboratory for Tropical Crop Breeding, Yazhouwan Technology City, Sanya, Hainan, 572024, China/Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture and Rual Affairs/Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, No.4, Xueyuan Road, Longhua District, Haikou, Hainan, 571101, China
| | - Aiping Luan
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/National Key Laboratory for Tropical Crop Breeding, Yazhouwan Technology City, Sanya, Hainan, 572024, China/Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture and Rual Affairs/Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, No.4, Xueyuan Road, Longhua District, Haikou, Hainan, 571101, China
| | - Yehua He
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crop in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, No. 483, Wushan Road, Wushan Street, Tianhe District, Guangzhou, Guangdong, 510642, China
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Fan D, Wang X, Liu T, Liu H, Peng Y, Tang X, Ye X, Sun K, Yue Y, Xu D, Li C, Luo K. Epigenetic regulation of high light-induced anthocyanin biosynthesis by histone demethylase IBM1 in Arabidopsis. THE NEW PHYTOLOGIST 2024; 242:2570-2585. [PMID: 38708492 DOI: 10.1111/nph.19789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 03/27/2024] [Indexed: 05/07/2024]
Abstract
In plant species, anthocyanin accumulation is specifically regulated by light signaling. Although the CONSTITUTIVELY PHOTOMORPHOGENIC1/SUPPRESSOR OF PHYA-105 (COP1/SPA) complex is known to control anthocyanin biosynthesis in response to light, the precise mechanism underlying this process remains largely unknown. Here, we report that Increase in BONSAI Methylation 1 (IBM1), a JmjC domain-containing histone demethylase, participates in the regulation of light-induced anthocyanin biosynthesis in Arabidopsis. The expression of IBM1 was induced by high light (HL) stress, and loss-of-function mutations in IBM1 led to accelerated anthocyanin accumulation under HL conditions. We further identified that IBM1 is directly associated with SPA1/3/4 chromatin in vivo to establish a hypomethylation status on H3K9 and DNA non-CG at these loci under HL, thereby releasing their expression. Genetic analysis showed that quadruple mutants of IBM1 and SPA1/3/4 resemble spa134 mutants. Overexpression of SPA1 in ibm1 mutants complements the mutant phenotype. Our results elucidate the significance and mechanism of IBM1 histone demethylase in the epigenetic regulation of anthocyanin biosynthesis in Arabidopsis under HL conditions.
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Affiliation(s)
- Di Fan
- Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Xianqiang Wang
- Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Tingting Liu
- Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Huimin Liu
- Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Yingying Peng
- Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Xiaofeng Tang
- Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Xiao Ye
- Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Kuan Sun
- Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Yuchen Yue
- Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Dan Xu
- Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Chaofeng Li
- Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Keming Luo
- Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
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Yang G, Sun M, Brewer L, Tang Z, Nieuwenhuizen N, Cooney J, Xu S, Sheng J, Andre C, Xue C, Rebstock R, Yang B, Chang W, Liu Y, Li J, Wang R, Qin M, Brendolise C, Allan AC, Espley RV, Lin‐Wang K, Wu J. Allelic variation of BBX24 is a dominant determinant controlling red coloration and dwarfism in pear. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:1468-1490. [PMID: 38169146 PMCID: PMC11123420 DOI: 10.1111/pbi.14280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/13/2023] [Accepted: 12/20/2023] [Indexed: 01/05/2024]
Abstract
Variation in anthocyanin biosynthesis in pear fruit provides genetic germplasm resources for breeding, while dwarfing is an important agronomic trait, which is beneficial to reduce the management costs and allow for the implementation of high-density cultivation. Here, we combined bulked segregant analysis (BSA), quantitative trait loci (QTL), and structural variation (SV) analysis to identify a 14-bp deletion which caused a frame shift mutation and resulted in the premature translation termination of a B-box (BBX) family of zinc transcription factor, PyBBX24, and its allelic variation termed PyBBX24ΔN14. PyBBX24ΔN14 overexpression promotes anthocyanin biosynthesis in pear, strawberry, Arabidopsis, tobacco, and tomato, while that of PyBBX24 did not. PyBBX24ΔN14 directly activates the transcription of PyUFGT and PyMYB10 through interaction with PyHY5. Moreover, stable overexpression of PyBBX24ΔN14 exhibits a dwarfing phenotype in Arabidopsis, tobacco, and tomato plants. PyBBX24ΔN14 can activate the expression of PyGA2ox8 via directly binding to its promoter, thereby deactivating bioactive GAs and reducing the plant height. However, the nuclear localization signal (NLS) and Valine-Proline (VP) motifs in the C-terminus of PyBBX24 reverse these effects. Interestingly, mutations leading to premature termination of PyBBX24 were also identified in red sports of un-related European pear varieties. We conclude that mutations in PyBBX24 gene link both an increase in pigmentation and a decrease in plant height.
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Affiliation(s)
- Guangyan Yang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
- Zhongshan Biological Breeding LaboratoryNanjingJiangsuChina
| | - Manyi Sun
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
- Zhongshan Biological Breeding LaboratoryNanjingJiangsuChina
| | - Lester Brewer
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Zikai Tang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Niels Nieuwenhuizen
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Janine Cooney
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Shaozhuo Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Jiawen Sheng
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Christelle Andre
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Cheng Xue
- State Key Laboratory of Crop Biology, College of Horticulture Science and EngineeringShandong Agricultural UniversityTai'anChina
| | - Ria Rebstock
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Bo Yang
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Wenjing Chang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Yueyuan Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Jiaming Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
- Zhongshan Biological Breeding LaboratoryNanjingJiangsuChina
| | - Runze Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Mengfan Qin
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Cyril Brendolise
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Andrew C. Allan
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Richard V. Espley
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Kui Lin‐Wang
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Jun Wu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
- Zhongshan Biological Breeding LaboratoryNanjingJiangsuChina
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Zhang X, Yu L, Zhang M, Wu T, Song T, Yao Y, Zhang J, Tian J. MdWER interacts with MdERF109 and MdJAZ2 to mediate methyl jasmonate- and light-induced anthocyanin biosynthesis in apple fruit. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 118:1327-1342. [PMID: 38319946 DOI: 10.1111/tpj.16671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 01/08/2024] [Accepted: 01/27/2024] [Indexed: 02/08/2024]
Abstract
Anthocyanin generation in apples (Malus domestica) and the pigmentation that results from it may be caused by irradiation and through administration of methyl jasmonate (MeJA). However, their regulatory interrelationships associated with fruit coloration are not well defined. To determine whether MdERF109, a transcription factor (TF) involved in light-mediated coloration and anthocyanin biosynthesis, has synergistic effects with other proteins, we performed a yeast two-hybrid assessment and identified another TF, MdWER. MdWER was induced by MeJA treatment, and although overexpression of MdWER alone did not promote anthocyanin accumulation co-overexpression with MdERF109 resulted in significantly increase in anthocyanin biosynthesis. MdWER may form a protein complex with MdERF109 to promote anthocyanin accumulation by enhancing combinations between the proteins and their corresponding genes. In addition, MdWER, as a MeJA responsive protein, interacts with the anthocyanin repressor MdJAZ2. Transient co-expression in apple fruit and protein interaction assays allowed us to conclude that MdERF109 and MdJAZ2 interact with MdWER and take part in the production of anthocyanins upon MeJA treatment and irradiation. Our findings validate a role for the MdERF109-MdWER-MdJAZ2 module in anthocyanin biosynthesis and uncover a novel mechanism for how light and MeJA signals are coordinated anthocyanin biosynthesis in apple fruit.
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Affiliation(s)
- Xi Zhang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing University of Agriculture, Beijing, China
- Plant Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Lujia Yu
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing University of Agriculture, Beijing, China
- Plant Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Mengjiao Zhang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing University of Agriculture, Beijing, China
- Plant Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Ting Wu
- College of Horticulture, China Agricultural University, Beijing, China
| | - Tingting Song
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing University of Agriculture, Beijing, China
- Plant Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Yuncong Yao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing University of Agriculture, Beijing, China
- Plant Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Jie Zhang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing University of Agriculture, Beijing, China
- Plant Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Ji Tian
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing University of Agriculture, Beijing, China
- Plant Science and Technology College, Beijing University of Agriculture, Beijing, China
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Geng Z, Liu M, Wang Y, Wang Y, Wang Y, Sun Y, Wang H, Zhou L, Jiang J, Chen S, Chen F. Transcriptomic and metabolomic analyses reveal CmMYB308 as a key regulator in the pink flower color variation of 'Dante Purple' chrysanthemum. PLANT CELL REPORTS 2024; 43:157. [PMID: 38819475 DOI: 10.1007/s00299-024-03244-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 05/22/2024] [Indexed: 06/01/2024]
Abstract
KEY MESSAGE CmMYB308 was identified as a key regulator in chrysanthemum flower color variation from purple to pink by conducting transcriptome and metabolome analysis. CmMYB308 can inhibit anthocyanin biosynthesis by suppressing the expression of CmPAL, CmC4H, and Cm4CL. Flower color variation is a widespread natural occurrence that plays a significant role in floral breeding. We discovered a variation in the flower of the chrysanthemum cultivar 'Dante Purple' (abbreviated as 'DP'), where the flower color shifted from purple to pink. We successfully propagated these pink flowers through tissue culture and designated them as DPM. By conducting transcriptome and metabolome analysis, we identified a reduction in the expression of critical genes involved in anthocyanin biosynthesis-CmPAL, CmC4H, and Cm4CL-in the DPM. This downregulation led to an accumulation of phenylalanine and cinnamic acid within the general phenylpropanoid pathway (GPP), which prevented their conversion into cyanidin and cyanidin 3-glucoside. As a result, the flowers turned pink. Additional transformation and biochemical experiments confirmed that the upregulation of CmMYB308 gene expression in the DPM directly suppressed CmPAL-1 and CmC4H genes, which indirectly affected Cm4CL-3 expression and ultimately inhibited anthocyanin biosynthesis in the DPM. This study offers a preliminary insight into the molecular mechanism underlying chrysanthemum flower color mutation, paving the way for genetic improvements in chrysanthemum flower color breeding.
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Affiliation(s)
- Zhiqiang Geng
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Key Laboratory of Flower Biology and Germplasm Innovation, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, China
| | - Miao Liu
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Key Laboratory of Flower Biology and Germplasm Innovation, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, China
| | - Yiguang Wang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Key Laboratory of Flower Biology and Germplasm Innovation, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, China
| | - Yuxi Wang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Key Laboratory of Flower Biology and Germplasm Innovation, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, China
| | - You Wang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Key Laboratory of Flower Biology and Germplasm Innovation, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, China
| | - YanYan Sun
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Key Laboratory of Flower Biology and Germplasm Innovation, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, China
| | - Haibin Wang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Key Laboratory of Flower Biology and Germplasm Innovation, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, China
| | - Lijie Zhou
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Key Laboratory of Flower Biology and Germplasm Innovation, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, China
| | - Jiafu Jiang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Key Laboratory of Flower Biology and Germplasm Innovation, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, China
| | - Sumei Chen
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Key Laboratory of Flower Biology and Germplasm Innovation, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, China
| | - Fadi Chen
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Key Laboratory of Flower Biology and Germplasm Innovation, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, China.
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Kaur D, Schedl A, Lafleur C, Martinez Henao J, van Dam NM, Rivoal J, Bede JC. Arabidopsis Transcriptomics Reveals the Role of Lipoxygenase2 (AtLOX2) in Wound-Induced Responses. Int J Mol Sci 2024; 25:5898. [PMID: 38892085 PMCID: PMC11173247 DOI: 10.3390/ijms25115898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 05/22/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024] Open
Abstract
In wounded Arabidopsis thaliana leaves, four 13S-lipoxygenases (AtLOX2, AtLOX3, AtLOX4, AtLOX6) act in a hierarchical manner to contribute to the jasmonate burst. This leads to defense responses with LOX2 playing an important role in plant resistance against caterpillar herb-ivory. In this study, we sought to characterize the impact of AtLOX2 on wound-induced phytohormonal and transcriptional responses to foliar mechanical damage using wildtype (WT) and lox2 mutant plants. Compared with WT, the lox2 mutant had higher constitutive levels of the phytohormone salicylic acid (SA) and enhanced expression of SA-responsive genes. This suggests that AtLOX2 may be involved in the biosynthesis of jasmonates that are involved in the antagonism of SA biosynthesis. As expected, the jasmonate burst in response to wounding was dampened in lox2 plants. Generally, 1 h after wounding, genes linked to jasmonate biosynthesis, jasmonate signaling attenuation and abscisic acid-responsive genes, which are primarily involved in wound sealing and healing, were differentially regulated between WT and lox2 mutants. Twelve h after wounding, WT plants showed stronger expression of genes associated with plant protection against insect herbivory. This study highlights the dynamic nature of jasmonate-responsive gene expression and the contribution of AtLOX2 to this pathway and plant resistance against insects.
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Affiliation(s)
- Diljot Kaur
- Department of Plant Science, McGill University, 21,111 rue Lakeshore, Ste-Anne-de-Bellevue, QC H9X 3V9, Canada; (D.K.); (J.M.H.)
- Institut de Recherche en Biologie Végétale, Université de Montréal, 4101 rue Sherbrooke E., Montréal, QC H1X 2B2, Canada;
| | - Andreas Schedl
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 52, 04103 Leipzig, Germany (N.M.v.D.)
- Institute of Biodiversity, Friedrich Schiller University Jena, 07743 Jena, Germany
- German Biomass Research Centre (DBFZ), Torgauer Straße 116, 04347 Leipzig, Germany
| | - Christine Lafleur
- Department of Animal Science, McGill University, 21,111 rue Lakeshore, Ste-Anne-de-Bellevue, QC H9X 3V9, Canada;
| | - Julian Martinez Henao
- Department of Plant Science, McGill University, 21,111 rue Lakeshore, Ste-Anne-de-Bellevue, QC H9X 3V9, Canada; (D.K.); (J.M.H.)
| | - Nicole M. van Dam
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 52, 04103 Leipzig, Germany (N.M.v.D.)
- Institute of Biodiversity, Friedrich Schiller University Jena, 07743 Jena, Germany
- Leibniz Institute for Vegetable and Ornamental Crops (IGZ), Theodor-Echtermeyerweg-1, 14979 Großbeeren, Germany
| | - Jean Rivoal
- Institut de Recherche en Biologie Végétale, Université de Montréal, 4101 rue Sherbrooke E., Montréal, QC H1X 2B2, Canada;
| | - Jacqueline C. Bede
- Department of Plant Science, McGill University, 21,111 rue Lakeshore, Ste-Anne-de-Bellevue, QC H9X 3V9, Canada; (D.K.); (J.M.H.)
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Tao H, Gao F, Linying Li, He Y, Zhang X, Wang M, Wei J, Zhao Y, Zhang C, Wang Q, Hong G. WRKY33 negatively regulates anthocyanin biosynthesis and cooperates with PHR1 to mediate acclimation to phosphate starvation. PLANT COMMUNICATIONS 2024; 5:100821. [PMID: 38229439 PMCID: PMC11121177 DOI: 10.1016/j.xplc.2024.100821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 01/03/2024] [Accepted: 01/11/2024] [Indexed: 01/18/2024]
Abstract
Anthocyanin accumulation is acknowledged as a phenotypic indicator of phosphate (Pi) starvation. However, negative regulators of this process and their molecular mechanisms remain largely unexplored. In this study, we demonstrate that WRKY33 acts as a negative regulator of phosphorus-status-dependent anthocyanin biosynthesis. WRKY33 regulates the expression of the gene encoding dihydroflavonol 4-reductase (DFR), a rate-limiting enzyme in anthocyanin production, both directly and indirectly. WRKY33 binds directly to the DFR promoter to repress its expression and also interferes with the MBW complex through interacting with PAP1 to indirectly influence DFR transcriptional activation. Under -Pi conditions, PHR1 interacts with WRKY33, and the protein level of WRKY33 decreases; the repression of DFR expression by WRKY33 is thus attenuated, leading to anthocyanin accumulation in Arabidopsis. Further genetic and biochemical assays suggest that PHR1 is also involved in regulating factors that affect WRKY33 protein turnover. Taken together, our findings reveal that Pi starvation represses WRKY33, a repressor of anthocyanin biosynthesis, to finely tune anthocyanin biosynthesis. This "double-negative logic" regulation of phosphorus-status-dependent anthocyanin biosynthesis is required for the maintenance of plant metabolic homeostasis during acclimation to Pi starvation.
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Affiliation(s)
- Han Tao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of the MOA of China and Zhejiang Province, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; State Key Laboratory of Subtropical Silviculture, Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou 311300, China
| | - Fei Gao
- State Key Laboratory of Subtropical Silviculture, Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou 311300, China
| | - Linying Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of the MOA of China and Zhejiang Province, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Yuqing He
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of the MOA of China and Zhejiang Province, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Xueying Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of the MOA of China and Zhejiang Province, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Mengyu Wang
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture, Hangzhou, Zhejiang, China
| | - Jia Wei
- Institute of Sericulture and Tea, Zhejiang Academy of Agricultural Sciences, Hangzhou 310000, China
| | - Yao Zhao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of the MOA of China and Zhejiang Province, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Chi Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of the MOA of China and Zhejiang Province, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Qiaomei Wang
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture, Hangzhou, Zhejiang, China.
| | - Gaojie Hong
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of the MOA of China and Zhejiang Province, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
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48
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Xiao K, Tan F, Zhang A, Zhou Y, Zhu W, Bao C, Zha D, Wu X. Fine Mapping of Candidate Gene Controlling Anthocyanin Biosynthesis for Purple Peel in Solanum melongena L. Int J Mol Sci 2024; 25:5241. [PMID: 38791283 PMCID: PMC11121509 DOI: 10.3390/ijms25105241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 05/03/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
Fruit color is an intuitive quality of horticultural crops that can be used as an evaluation criterion for fruit ripening and is an important factor affecting consumers' purchase choices. In this study, a genetic population from the cross of green peel 'Qidong' and purple peel '8 guo' revealed that the purple to green color of eggplant peel is dominant and controlled by a pair of alleles. Bulked segregant analysis (BSA), SNP haplotyping, and fine genetic mapping delimited candidate genes to a 350 kb region of eggplant chromosome 10 flanked by markers KA2381 and CA8828. One ANS gene (EGP22363) was predicted to be a candidate gene based on gene annotation and sequence alignment of the 350-kb region. Sequence analysis revealed that a single base mutation of 'T' to 'C' on the exon green peel, which caused hydrophobicity to become hydrophilic serine, led to a change in the three-level spatial structure. Additionally, EGP22363 was more highly expressed in purple peels than in green peels. Collectively, EGP22363 is a strong candidate gene for anthocyanin biosynthesis in purple eggplant peels. These results provide important information for molecular marker-assisted selection in eggplants, and a basis for analyzing the regulatory pathways responsible for anthocyanin biosynthesis in eggplants.
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Affiliation(s)
- Kai Xiao
- Shanghai Key Laboratory of Protected Horticultural Technology, Horticultural Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (K.X.); (F.T.); (A.Z.); (Y.Z.); (W.Z.); (D.Z.)
| | - Feng Tan
- Shanghai Key Laboratory of Protected Horticultural Technology, Horticultural Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (K.X.); (F.T.); (A.Z.); (Y.Z.); (W.Z.); (D.Z.)
| | - Aidong Zhang
- Shanghai Key Laboratory of Protected Horticultural Technology, Horticultural Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (K.X.); (F.T.); (A.Z.); (Y.Z.); (W.Z.); (D.Z.)
| | - Yaru Zhou
- Shanghai Key Laboratory of Protected Horticultural Technology, Horticultural Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (K.X.); (F.T.); (A.Z.); (Y.Z.); (W.Z.); (D.Z.)
| | - Weimin Zhu
- Shanghai Key Laboratory of Protected Horticultural Technology, Horticultural Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (K.X.); (F.T.); (A.Z.); (Y.Z.); (W.Z.); (D.Z.)
| | - Chonglai Bao
- Institute of Vegetable Research, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Dingshi Zha
- Shanghai Key Laboratory of Protected Horticultural Technology, Horticultural Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (K.X.); (F.T.); (A.Z.); (Y.Z.); (W.Z.); (D.Z.)
| | - Xuexia Wu
- Shanghai Key Laboratory of Protected Horticultural Technology, Horticultural Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (K.X.); (F.T.); (A.Z.); (Y.Z.); (W.Z.); (D.Z.)
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49
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Huang W, Xu B, Guo W, Huang Z, Li Y, Wu W. De novo genome assembly and population genomics of a shrub tree Barthea barthei (Hance) krass provide insights into the adaptive color variations. FRONTIERS IN PLANT SCIENCE 2024; 15:1365686. [PMID: 38751846 PMCID: PMC11094225 DOI: 10.3389/fpls.2024.1365686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 04/19/2024] [Indexed: 05/18/2024]
Abstract
Flower color is a classic example of an ecologically important trait under selection in plants. Understanding the genetic mechanisms underlying shifts in flower color can provide key insights into ecological speciation. In this study, we investigated the genetic basis of flower color divergence in Barthea barthei, a shrub tree species exhibiting natural variation in flower color. We assembled a high-quality genome assembly for B. barthei with a contig N50 of 2.39 Mb and a scaffold N50 of 16.21 Mb. The assembly was annotated with 46,430 protein-coding genes and 1,560 non-coding RNAs. Genome synteny analysis revealed two recent tetraploidization events in B. barthei, estimated to have occurred at approximately 17 and 63 million years ago. These tetraploidization events resulted in massive duplicated gene content, with over 70% of genes retained in collinear blocks. Gene family members of the core regulators of the MBW complex were significantly expanded in B. barthei compared to Arabidopsis, suggesting that these duplications may have provided raw genetic material for the evolution of novel regulatory interactions and the diversification of anthocyanin pigmentation. Transcriptome profiling of B. barthei flowers revealed differential expression of 9 transcription factors related to anthocyanin biosynthesis between the two ecotypes. Six of these differentially expressed transcription factors were identified as high-confidence candidates for adaptive evolution based on positive selection signals. This study provides insights into the genetic basis of flower color divergence and the evolutionary mechanisms underlying ecological adaptation in plants.
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Affiliation(s)
- Weicheng Huang
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, China
- South China Botanical Garden, Chinese Academy of Science, Guangzhou, China
| | - Bin Xu
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou, China
| | - Wei Guo
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Zecheng Huang
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Yongquan Li
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Wei Wu
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, China
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50
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Xue L, Liu X, Wang W, Huang D, Ren C, Huang X, Yin X, Lin-Wang K, Allan AC, Chen K, Xu C. MYB transcription factors encoded by diversified tandem gene clusters cause varied Morella rubra fruit color. PLANT PHYSIOLOGY 2024; 195:598-616. [PMID: 38319742 DOI: 10.1093/plphys/kiae063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/03/2024] [Accepted: 01/04/2024] [Indexed: 02/08/2024]
Abstract
Chinese bayberry (Morella rubra) is a fruit tree with a remarkable variation in fruit color, ranging from white to dark red as determined by anthocyanin content. In dark red "Biqi" (BQ), red "Dongkui" (DK), pink "Fenhong" (FH), and white "Shuijing" (SJ), we identified an anthocyanin-related MYB transcription factor-encoding gene cluster of four members, i.e. MrMYB1.1, MrMYB1.2, MrMYB1.3, and MrMYB2. Collinear analysis revealed that the MYB tandem cluster may have occurred in a highly conserved region of many eudicot genomes. Two alleles of MrMYB1.1 were observed; MrMYB1.1-1 (MrMYB1.1n) was a full-length allele and homozygous in "BQ", MrMYB1.1-2 (MrMYB1.1d) was a nonfunctional allele with a single base deletion and homozygous in "SJ", and MrMYB1.1n/MrMYB1.1d were heterozygous in "DK" and "FH". In these four cultivars, expression of MrMYB1.1, MrMYB1.2, and MrMYB2 was enhanced during ripening. Both alleles were equally expressed in MrMYB1.1n/MrMYB1.1d heterozygous cultivars as revealed by a cleaved amplified polymorphic sequence marker. Expression of MrMYB1.3 was restricted to some dark red cultivars only. Functional characterization revealed that MrMYB1.1n and MrMYB1.3 can induce anthocyanin accumulation while MrMYB1.1d, MrMYB1.2, and MrMYB2 cannot. DNA-protein interaction assays indicated that MrMYB1.1n and MrMYB1.3 can directly bind to and activate the promoters of anthocyanin-related genes via interaction with a MYC-like basic helix-loop-helix protein MrbHLH1. We concluded that the specific genotype of MrMYB1.1 alleles, as well as the exclusive expression of MrMYB1.3 in some dark red cultivars, contributes to fruit color variation. The study provides insights into the mechanisms for regulation of plant anthocyanin accumulation by MYB tandem clusters.
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Affiliation(s)
- Lei Xue
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou 310058, China
| | - Xiaofen Liu
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou 310058, China
| | - Wenli Wang
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou 310058, China
| | - Dan Huang
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou 310058, China
| | - Chuanhong Ren
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou 310058, China
| | - Xiaorong Huang
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou 310058, China
| | - Xueren Yin
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou 310058, China
| | - Kui Lin-Wang
- New Zealand Institute for Plant & Food Research Limited, Private Bag 92169, Auckland Mail Centre, Auckland 1142, New Zealand
| | - Andrew C Allan
- New Zealand Institute for Plant & Food Research Limited, Private Bag 92169, Auckland Mail Centre, Auckland 1142, New Zealand
- School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Kunsong Chen
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou 310058, China
| | - Changjie Xu
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou 310058, China
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