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Li J, Xu S, Mei Y, Gu Y, Sun M, Zhang W, Wang J. Genomic-wide identification and expression analysis of R2R3-MYB transcription factors related to flavonol biosynthesis in Morinda officinalis. BMC PLANT BIOLOGY 2023; 23:381. [PMID: 37550611 PMCID: PMC10405574 DOI: 10.1186/s12870-023-04394-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 08/02/2023] [Indexed: 08/09/2023]
Abstract
BACKGROUND The R2R3-MYB transcription factors are a crucial and extensive gene family in plants, which participate in diverse processes, including development, metabolism, defense, differentiation, and stress response. In the Lingnan region of China, Morinda officinalis is extensively grown and is renowned for its use as both a medicinal herb and food source. However, there are relatively few reports on the R2R3-MYB transcription factor family in M.officinalis. RESULTS In this study, we identified 97 R2R3-MYB genes in the genome of Morinda officinalis and classified them into 32 subgroups based on phylogenetic comparison with Arabidopsis thaliana. The lack of recent whole-genome duplication events in M.officinalis may be the reason for the relatively few members of the R2R3-MYB family. We also further analyzed the physical and chemical characteristics, conserved motifs, gene structure, and chromosomal location. Gene duplication events found 21 fragment duplication pairs and five tandem duplication event R2R3-MYB genes in M.officinalis may also affect gene family expansion. Based on phylogenetic analysis, cis-element analysis, co-expression analysis and RT-qPCR, we concluded that MoMYB33 might modulate flavonol levels by regulating the expression of 4-coumarate-CoA ligase Mo4CL2, chalcone isomerase MoCHI3, and flavonol synthase MoFLS4/11/12. MoMYB33 and AtMYB111 showed the highest similarity of 79% and may be involved in flavonol synthase networks by the STRING database. Moreover, we also identified MoMYB genes that respond to methyl Jasmonate (MeJA) and abscisic acid (ABA) stress by RT-qPCR. CONCLUSIONS This study offers a thorough comprehension of R2R3-MYB in M.officinalis, which lays the foundation for the regulation of flavonol synthesis and the response of MoMYB genes to phytohormones in M.officinalis.
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Affiliation(s)
- Jingyu Li
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crop Research Institute, Guangdong Academy of Agriculture Sciences, Guangzhou, 510640, China
- Guangdong Provincial Engineering and Technology Research Center for Conservation and Utilization of the Genuine Southern Medicinal Resources, Guangzhou, 510640, China
| | - Shiqiang Xu
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crop Research Institute, Guangdong Academy of Agriculture Sciences, Guangzhou, 510640, China
- Guangdong Provincial Engineering and Technology Research Center for Conservation and Utilization of the Genuine Southern Medicinal Resources, Guangzhou, 510640, China
| | - Yu Mei
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crop Research Institute, Guangdong Academy of Agriculture Sciences, Guangzhou, 510640, China
- Guangdong Provincial Engineering and Technology Research Center for Conservation and Utilization of the Genuine Southern Medicinal Resources, Guangzhou, 510640, China
| | - Yan Gu
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crop Research Institute, Guangdong Academy of Agriculture Sciences, Guangzhou, 510640, China
- Guangdong Provincial Engineering and Technology Research Center for Conservation and Utilization of the Genuine Southern Medicinal Resources, Guangzhou, 510640, China
| | - Mingyang Sun
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crop Research Institute, Guangdong Academy of Agriculture Sciences, Guangzhou, 510640, China
- Guangdong Provincial Engineering and Technology Research Center for Conservation and Utilization of the Genuine Southern Medicinal Resources, Guangzhou, 510640, China
| | - Wenting Zhang
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crop Research Institute, Guangdong Academy of Agriculture Sciences, Guangzhou, 510640, China
- Guangdong Provincial Engineering and Technology Research Center for Conservation and Utilization of the Genuine Southern Medicinal Resources, Guangzhou, 510640, China
| | - Jihua Wang
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crop Research Institute, Guangdong Academy of Agriculture Sciences, Guangzhou, 510640, China.
- Guangdong Provincial Engineering and Technology Research Center for Conservation and Utilization of the Genuine Southern Medicinal Resources, Guangzhou, 510640, China.
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Simko I, Sthapit Kandel J, Peng H, Zhao R, Subbarao KV. Genetic determinants of lettuce resistance to drop caused by Sclerotinia minor identified through genome-wide association mapping frequently co-locate with loci regulating anthocyanin content. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:180. [PMID: 37548768 DOI: 10.1007/s00122-023-04421-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 07/12/2023] [Indexed: 08/08/2023]
Abstract
KEY MESSAGE GWAS identified 19 QTLs for resistance to Sclerotinia minor, 11 of them co-locating with red leaf color. Lower disease incidence was observed in red and dark red accessions. Lettuce (Lactuca sativa L.), one of the most economically important vegetables grown primarily in moderate climates around the world, is susceptible to many diseases including lettuce drop caused by the soilborne fungus Sclerotinia minor. Complete resistance to S. minor has not been identified in cultivated lettuce or its wild relatives. We conducted five experiments over 4 years with the diversity panel of almost 500 lettuce accessions to evaluate their response to the pathogen in an artificially infested field. The lowest disease incidence (DI) was observed in cultivars Eruption, Infantry, and Annapolis (median DI of 12.1-17.5%), while the highest DI was recorded for cultivars Reine des Glaces, Wayahead, and line FL. 43007 (median DI of 81.0-95.2%). Overall, significantly lower DI was observed in red and dark red accessions compared to those with a lower anthocyanin content. Genome-wide association mapping identified 19 QTLs for resistance to S. minor, 21 for the presence of red leaf color or its variations caused by the anthocyanin content, and one for the green color intensity. Eleven of the QTLs for disease resistance were located within 10 Mb of the loci associated with red color or anthocyanin content identified in this diversity panel. The frequent, non-random co-location of QTLs, together with the lower DI observed in red and dark red accessions suggests that lettuce interaction with S. minor may be partly influenced by anthocyanins. We have identified RLL2 and ANS, the genes of the anthocyanin biosynthesis pathway that co-locate with resistance QTLs, as candidates for functional studies to ascertain the involvement of anthocyanins in lettuce resistance against S. minor. Resistance QTLs closely linked with QTLs for anthocyanin content could be used to develop lettuce with a relatively high partial resistance and red color, while those not associated with anthocyanins could be used to develop partially resistant cultivars of green color.
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Affiliation(s)
- Ivan Simko
- Crop Improvement and Protection Research Unit, U.S. Department of Agriculture, Agricultural Research Service, Salinas, CA, 93905, USA.
| | - Jinita Sthapit Kandel
- Edward T. Schafer Agricultural Research Center, U.S. Department of Agriculture, Agricultural Research Service, Fargo, ND, 58102, USA
| | - Hui Peng
- Everglades Research and Education Center, Horticultural Sciences Department, University of Florida, Belle Glade, FL, 33430, USA
| | - Rebecca Zhao
- Crop Improvement and Protection Research Unit, U.S. Department of Agriculture, Agricultural Research Service, Salinas, CA, 93905, USA
| | - Krishna V Subbarao
- Department of Plant Pathology, University of California, Davis, c/o U.S., Agricultural Research Station, Salinas, CA, 93905, USA.
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203
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Ma R, Luo J, Wang W, Song T, Fu Y. Function of the R2R3-MYB Transcription Factors in Dalbergia odorifera and Their Relationship with Heartwood Formation. Int J Mol Sci 2023; 24:12430. [PMID: 37569814 PMCID: PMC10419101 DOI: 10.3390/ijms241512430] [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: 06/21/2023] [Revised: 07/30/2023] [Accepted: 07/31/2023] [Indexed: 08/13/2023] Open
Abstract
R2R3-MYB transcription factors (TFs) form one of the most important TF families involved in regulating various physiological functions in plants. The heartwood of Dalbergia odorifera is a kind of high-grade mahogany and valuable herbal medicine with wide application. However, the role of R2R3-MYB genes in the growth and development of D. odorifera, especially their relevance to heartwood formation, has not been revealed. A total of 126 R2R3-MYBs were screened from the D. odorifera genome and named DodMYB1-126 based on their location on 10 chromosomes. The collinearity results showed that purification selection was the main driving force for the evolution of the R2R3-MYB TFs family, and whole genome/fragment replication event was the main form for expanding the R2R3-MYB family, generating a divergence of gene structure and function. Comparative phylogenetic analysis classified the R2R3-MYB TFs into 33 subfamilies. S3-7,10,12-13,21 and N4-7 were extensively involved in the metabolic process; S9,13,16-19,24-25 and N1-3,8 were associated with the growth and development of D. odorifera. Based on the differential transcriptional expression levels of R2R3-MYBs in different tissues, DodMYB32, DodMYB55, and DodMYB89 were tentatively screened for involvement in the regulatory process of heartwood. Further studies have shown that the DodMYB89, localized in the nucleus, has transcriptional activation activity and is involved in regulating the biosynthesis of the secondary metabolites of heartwood by activating the promoters of the structural genes DodI2'H and DodCOMT. This study aimed to comprehensively analyze the functions of the R2R3-MYB TFs and screen for candidate genes that might be involved in heartwood formation of D. odorifera.
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Affiliation(s)
- Ruoke Ma
- Key Laboratory of National Forestry and Grassland Administration for Fast-Growing Tree Breeding and Cultivation in Central and Southern China, College of Forestry, Guangxi University, Nanning 530004, China; (R.M.); (J.L.); (W.W.)
| | - Jia Luo
- Key Laboratory of National Forestry and Grassland Administration for Fast-Growing Tree Breeding and Cultivation in Central and Southern China, College of Forestry, Guangxi University, Nanning 530004, China; (R.M.); (J.L.); (W.W.)
| | - Weijie Wang
- Key Laboratory of National Forestry and Grassland Administration for Fast-Growing Tree Breeding and Cultivation in Central and Southern China, College of Forestry, Guangxi University, Nanning 530004, China; (R.M.); (J.L.); (W.W.)
| | - Tianqi Song
- College of Agronomy, Northwest A&F University, Xianyang 712000, China;
| | - Yunlin Fu
- Key Laboratory of National Forestry and Grassland Administration for Fast-Growing Tree Breeding and Cultivation in Central and Southern China, College of Forestry, Guangxi University, Nanning 530004, China; (R.M.); (J.L.); (W.W.)
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204
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Song J, Sun B, Chen C, Ning Z, Zhang S, Cai Y, Zheng X, Cao B, Chen G, Jin D, Li B, Bian J, Lei J, He H, Zhu Z. An R-R-type MYB transcription factor promotes non-climacteric pepper fruit carotenoid pigment biosynthesis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 115:724-741. [PMID: 37095638 DOI: 10.1111/tpj.16257] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 04/06/2023] [Accepted: 04/18/2023] [Indexed: 05/03/2023]
Abstract
Carotenoids are major accessory pigments in the chloroplast, and they also act as phytohormones and volatile compound precursors to influence plant development and confer characteristic colours, affecting both the aesthetic and nutritional value of fruits. Carotenoid pigmentation in ripening fruits is highly dependent on developmental trajectories. Transcription factors incorporate developmental and phytohormone signalling to regulate the biosynthesis process. By contrast to the well-established pathways regulating ripening-related carotenoid biosynthesis in climacteric fruit, carotenoid regulation in non-climacteric fruit is poorly understood. Capsanthin is the primary carotenoid of non-climacteric pepper (Capsicum) fruit; its biosynthesis is tightly associated with fruit ripening, and it confers red pigmentation to the ripening fruit. In the present study, using a coexpression analysis, we identified an R-R-type MYB transcription factor, DIVARICATA1, and demonstrated its role in capsanthin biosynthesis. DIVARICATA1 encodes a nucleus-localised protein that functions primarily as a transcriptional activator. Functional analyses showed that DIVARICATA1 positively regulates carotenoid biosynthetic gene (CBG) transcript levels and capsanthin levels by directly binding to and activating CBG promoter transcription. Furthermore, an association analysis revealed a significant positive association between DIVARICATA1 transcription level and capsanthin content. ABA promotes capsanthin biosynthesis in a DIVARICATA1-dependent manner. Comparative transcriptomic analysis of DIVARICATA1 in Solanaceae plants showed that its function likely differs among species. Moreover, the pepper DIVARICATA1 gene could be regulated by the ripening regulator MADS-RIN. The present study illustrates the transcriptional regulation of capsanthin biosynthesis and offers a target for breeding peppers with high red colour intensity.
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Affiliation(s)
- Jiali Song
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
| | - Binmei Sun
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
| | - Changming Chen
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Zuoyang Ning
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
| | - Shuanglin Zhang
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
| | - Yutong Cai
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
| | - Xiongjie Zheng
- Division of Biological and Environmental Science and Engineering, Center for Desert Agriculture, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Bihao Cao
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Guoju Chen
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
| | - Dan Jin
- Biotechnology Research Center, Southwest University, Chongqing, 401120, China
| | - Bosheng Li
- Peking University Institute of Advanced Agricultural Sciences, Weifang, 261325, China
| | - Jianxin Bian
- Peking University Institute of Advanced Agricultural Sciences, Weifang, 261325, China
| | - Jianjun Lei
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Hang He
- Peking University Institute of Advanced Agricultural Sciences, Weifang, 261325, China
| | - Zhangsheng Zhu
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
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205
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Spies FP, Perotti MF, Cho Y, Jo CI, Hong JC, Chan RL. A complex tissue-specific interplay between the Arabidopsis transcription factors AtMYB68, AtHB23, and AtPHL1 modulates primary and lateral root development and adaptation to salinity. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 115:952-966. [PMID: 37165773 DOI: 10.1111/tpj.16273] [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: 12/18/2022] [Accepted: 04/25/2023] [Indexed: 05/12/2023]
Abstract
Adaptation to different soil conditions is a well-regulated process vital for plant life. AtHB23 is a homeodomain-leucine zipper I transcription factor (TF) that was previously revealed as crucial for plant survival under salinity conditions. We wondered whether this TF has partners to perform this essential function. Therefore, TF cDNA library screening, yeast two-hybrid, bimolecular fluorescence complementation, and coimmunoprecipitation assays were complemented with expression analyses and phenotypic characterization of silenced, mutant, overexpression, and crossed plants in normal and salinity conditions. We revealed that AtHB23, AtPHL1, and AtMYB68 interact with each other, modulating root development and the salinity response. The encoding genes are coexpressed in specific root tissues and at specific developmental stages. In normal conditions, amiR68 silenced plants have fewer initiated roots, the opposite phenotype to that shown by amiR23 plants. AtMYB68 and AtPHL1 play opposite roles in lateral root elongation. Under salinity conditions, AtHB23 plays a crucial positive role in cooperating with AtMYB68, whereas AtPHL1 acts oppositely by obstructing the function of the former, impacting the plant's survival ability. Such interplay supports the complex interaction between these TF in primary and lateral roots. The root adaptation capability is associated with the amyloplast state. We identified new molecular players that through a complex relationship determine Arabidopsis root architecture and survival in salinity conditions.
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Affiliation(s)
- Fiorella Paola Spies
- Instituto de Agrobiotecnología del Litoral, CONICET, Universidad Nacional del Litoral, FBCB, Colectora Ruta Nacional 168 km 0, 3000, Santa Fe, Argentina
| | - María Florencia Perotti
- Instituto de Agrobiotecnología del Litoral, CONICET, Universidad Nacional del Litoral, FBCB, Colectora Ruta Nacional 168 km 0, 3000, Santa Fe, Argentina
| | - Yuhan Cho
- Division of Life Science, Applied Life Science (BK21 Four), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea
| | - Chang Ig Jo
- Division of Life Science, Applied Life Science (BK21 Four), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea
| | - Jong Chan Hong
- Division of Life Science, Applied Life Science (BK21 Four), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea
- Division of Plant Sciences, University of Missouri, Columbia, South Carolina, MO 65211-7310, USA
| | - Raquel Lía Chan
- Instituto de Agrobiotecnología del Litoral, CONICET, Universidad Nacional del Litoral, FBCB, Colectora Ruta Nacional 168 km 0, 3000, Santa Fe, Argentina
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206
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Liu Y, Li Y, Liu Z, Wang L, Bi Z, Sun C, Yao P, Zhang J, Bai J, Zeng Y. Integrated transcriptomic and metabolomic analysis revealed altitude-related regulatory mechanisms on flavonoid accumulation in potato tubers. Food Res Int 2023; 170:112997. [PMID: 37316022 DOI: 10.1016/j.foodres.2023.112997] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/14/2023] [Accepted: 05/16/2023] [Indexed: 06/16/2023]
Abstract
Not least because it is adaptable to a variety of geographies and climates, potato (Solanum tuberosum L.) is grown across much of the world. Pigmented potato tubers have been found to contain large quantities of flavonoids, which have various functional roles and act as antioxidants in the human diet. However, the effect of altitude on the biosynthesis and accumulation of flavonoids in potato tubers is poorly characterized. Here we carried out an integrated metabolomic and transcriptomic study in order to evaluate how cultivation at low (800 m), moderate (1800 m), and high (3600 m) altitude affects flavonoid biosynthesis in pigmented potato tubers. Both red and purple potato tubers grown at a high altitude contained the highest flavonoid content, and the most highly pigmented flesh, followed by those grown at a low altitude. Co-expression network analysis revealed three modules containing genes which were positively correlated with altitude-responsive flavonoid accumulation. The anthocyanin repressors StMYBATV and StMYB3 exhibited a significant positive relationship with altitude-responsive flavonoid accumulation. The repressive function of StMYB3 was further verified in tobacco flowers and potato tubers. The results presented here add to the growing body of knowledge regarding the response of flavonoid biosynthesis to environmental conditions, and should aid in efforts to develop novel varieties of pigmented potatoes for use across different geographies.
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Affiliation(s)
- Yuhui Liu
- State Key Laboratory of Aridland Crop Science/Agronomy College, Gansu Agricultural University, Lanzhou 730070, China.
| | - Yuanming Li
- State Key Laboratory of Aridland Crop Science/Agronomy College, Gansu Agricultural University, Lanzhou 730070, China
| | - Zhen Liu
- State Key Laboratory of Aridland Crop Science/Agronomy College, Gansu Agricultural University, Lanzhou 730070, China
| | - Lei Wang
- Potato Research Center, Hebei North University, Zhangjiakou 075000, China
| | - Zhenzhen Bi
- State Key Laboratory of Aridland Crop Science/Agronomy College, Gansu Agricultural University, Lanzhou 730070, China
| | - Chao Sun
- State Key Laboratory of Aridland Crop Science/Agronomy College, Gansu Agricultural University, Lanzhou 730070, China
| | - Panfeng Yao
- State Key Laboratory of Aridland Crop Science/Agronomy College, Gansu Agricultural University, Lanzhou 730070, China
| | - Junlian Zhang
- State Key Laboratory of Aridland Crop Science/Agronomy College, Gansu Agricultural University, Lanzhou 730070, China
| | - Jiangping Bai
- State Key Laboratory of Aridland Crop Science/Agronomy College, Gansu Agricultural University, Lanzhou 730070, China
| | - Yuting Zeng
- Tibet Academy of Agricultural and Animal Husbandry Sciences, Lasa 850000, China
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207
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Xing K, Liu Z, Liu L, Zhang J, Qanmber G, Wang Y, Liu L, Gu Y, Zhang C, Li S, Zhang Y, Yang Z. N 6 -Methyladenosine mRNA modification regulates transcripts stability associated with cotton fiber elongation. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 115:967-985. [PMID: 37158663 DOI: 10.1111/tpj.16274] [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: 02/01/2023] [Revised: 04/29/2023] [Accepted: 05/04/2023] [Indexed: 05/10/2023]
Abstract
N6 -Methyladenosine (m6 A) is the most abundant methylation modification in eukaryotic mRNA. The discovery of the dynamic and reversible regulatory mechanism of m6 A has greatly promoted the development of m6 A-led epitranscriptomics. However, the characterization of m6 A in cotton fiber is still unknown. Here, we reveal the potential link between m6 A modification and cotton fiber elongation by parallel m6 A-immunoprecipitation-sequencing (m6 A-seq) and RNA-seq analysis of fibers from the short fiber mutants Ligonliness-2 (Li2 ) and wild-type (WT). This study demonstrated a higher level of m6 A in the Li2 mutant, with the enrichment of m6 A modifications in the stop codon, 3'-untranslated region and coding sequence regions than in WT cotton. In the correlation analysis between genes containing differential m6 A modifications and differentially expressed genes, we identified several genes that could potentially regulate fiber elongation, including cytoskeleton, microtubule binding, cell wall and transcription factors (TFs). We further confirmed that the methylation of m6 A affected the mRNA stability of these fiber elongation-related genes including the TF GhMYB44, which showed the highest expression level in the RNA-seq data and m6 A methylation in the m6 A-seq data. Next, the overexpression of GhMYB44 reduces fiber elongation, whereas the silencing of GhMYB44 produces longer fibers. In summary, these results uncover that m6 A methylation regulated the expression of genes related to fiber development by affecting mRNA's stability, ultimately affecting cotton fiber elongation.
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Affiliation(s)
- Kun Xing
- Hebei Research Base,National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, College of Agronomy, Hebei Agricultural University, Baoding, 071001, Hebei, China
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization,Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Zhao Liu
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Le Liu
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization,Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Jie Zhang
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization,Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Ghulam Qanmber
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Ye Wang
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization,Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Lisen Liu
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization,Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Yu Gu
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization,Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Changsheng Zhang
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Shuaijie Li
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Yan Zhang
- Hebei Research Base,National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, College of Agronomy, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Zuoren Yang
- Hebei Research Base,National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, College of Agronomy, Hebei Agricultural University, Baoding, 071001, Hebei, China
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization,Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, 831100, Xinjiang, China
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208
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Zhao X, Li P, Zuo H, Peng A, Lin J, Li P, Wang K, Tang Q, Tadege M, Liu Z, Zhao J. CsMYBL2 homologs modulate the light and temperature stress-regulated anthocyanin and catechins biosynthesis in tea plants (Camellia sinensis). THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 115:1051-1070. [PMID: 37162381 DOI: 10.1111/tpj.16279] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 04/21/2023] [Accepted: 05/05/2023] [Indexed: 05/11/2023]
Abstract
Anthocyanin and catechin production in tea (Camellia sinensis) leaves can positively affect tea quality; however, their regulatory mechanisms are not fully understood. Here we report that, while the CsMYB75- or CsMYB86-directed MYB-bHLH-WD40 (MBW) complexes differentially activate anthocyanin or catechin biosynthesis in tea leaves, respectively, CsMYBL2a and CsMYBL2b homologs negatively modified the light- and temperature-induced anthocyanin and catechin production in both Arabidopsis and tea plants. The MBW complexes activated both anthocyanin synthesis genes and the downstream repressor genes CsMYBL2a and CsMYBL2b. Overexpression of CsMYBL2b, but not CsMYBL2a, repressed Arabidopsis leaf anthocyanin accumulation and seed coat proanthocyanin production. CsMYBL2b strongly and CsMYBL2a weakly repressed the activating effects of CsMYB75/CsMYB86 on CsDFR and CsANS, due to their different EAR and TLLLFR domains and interactions with CsTT8/CsGL3, interfering with the functions of activating MBW complexes. CsMYBL2b and CsMYBL2a in tea leaves play different roles in fine-tuning CsMYB75/CsMYB86-MBW activation of biosynthesis of anthocyanins and catechins, respectively. The CsbZIP1-CsmiR858a-CsMYBL2 module mediated the UV-B- or cold-activated CsMYB75/CsMYB86 regulation of anthocyanin/catechin biosynthesis by repressing CsMYBL2a and CsMYBL2b. Similarly, the CsCOP1-CsbZIP1-CsPIF3 module, and BR signaling as well, mediated the high temperature repression of anthocyanin and catechin biosynthesis through differentially upregulating CsMYBL2b and CsMYBL2a, respectively. The present study provides new insights into the complex regulatory networks in environmental stress-modified flavonoid production in tea plant leaves.
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Affiliation(s)
- Xuecheng Zhao
- Key Laboratory of Tea Science of Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
- Hainan Yazhou Bay Seed Laboratory, Sanya Nanfan Research Institute of Hainan University, Sanya, 572025, China
| | - Ping Li
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Hao Zuo
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Anqi Peng
- Key Laboratory of Tea Science of Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Junming Lin
- Key Laboratory of Tea Science of Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Penghui Li
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Kunbo Wang
- Key Laboratory of Tea Science of Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Qian Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Million Tadege
- Department of Plant and Soil Sciences, Institute for Agricultural Biosciences, Oklahoma State University, 3210 Sam Noble Parkway, Ardmore, OK, 73401, USA
| | - Zhonghua Liu
- Key Laboratory of Tea Science of Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
| | - Jian Zhao
- Key Laboratory of Tea Science of Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha, 410128, China
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209
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Liu S, Gu X, Jiang Y, Wang L, Xiao N, Chen Y, Jin B, Wang L, Li W. UV-B promotes flavonoid biosynthesis in Ginkgo biloba by inducing the GbHY5- GbMYB1- GbFLS module. HORTICULTURE RESEARCH 2023; 10:uhad118. [PMID: 37547729 PMCID: PMC10402656 DOI: 10.1093/hr/uhad118] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 05/23/2023] [Indexed: 08/08/2023]
Abstract
Ginkgo biloba (ginkgo) leaves have medicinal value due to their high levels of secondary metabolites, such as flavonoids. We found that the flavonoid content in ginkgo leaves increases significantly at high altitudes (Qinghai-Tibet Plateau). Considering that high UV-B radiation is among the key environmental characteristics of the Qinghai-Tibet Plateau, we carried out simulated UV-B treatments on ginkgo seedlings and found that the flavonoid content of the leaves increased significantly following the treatments. Combined with results from our previous studies, we determined that the transcription factor GbHY5 may play a key role in responses to UV-B radiation. Overexpression of GbHY5 significantly promoted the accumulation of flavonoids in both ginkgo callus and Arabidopsis thaliana. Furthermore, yeast two-hybrid and real-time quantitative PCR showed that GbHY5 promoted the expression of GbMYB1 by interacting with GbMYB1 protein. Overexpression of GbMYB1 in ginkgo callus and A. thaliana also significantly promoted flavonoid biosynthesis. GbFLS encodes a key enzyme in flavonoid biosynthesis, and its promoter has binding elements of GbHY5 and GbMYB1. A dual-luciferase reporter assay indicated that while GbHY5 and GbMYB1 activated the expression of GbFLS individually, their co-expression achieved greater activation. Our analyses reveal the molecular mechanisms by which the UV-B-induced GbHY5-GbMYB1-GbFLS module promotes flavonoid biosynthesis in ginkgo, and they provide insight into the use of UV-B radiation to enhance the flavonoid content of ginkgo leaves.
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Affiliation(s)
- Sian Liu
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
| | - Xiaoyin Gu
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
| | - Yanbing Jiang
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
| | - Lu Wang
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
| | - Nan Xiao
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
| | - Yadi Chen
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
| | - Biao Jin
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
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210
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Zhang L, Wang Y, Yue M, Jiang L, Zhang N, Luo Y, Chen Q, Zhang Y, Wang Y, Li M, Zhang Y, Lin Y, Tang H. FaMYB5 Interacts with FaBBX24 to Regulate Anthocyanin and Proanthocyanidin Biosynthesis in Strawberry ( Fragaria × ananassa). Int J Mol Sci 2023; 24:12185. [PMID: 37569565 PMCID: PMC10418308 DOI: 10.3390/ijms241512185] [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: 07/05/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
MYB and BBX transcription factors play important roles in flavonoid biosynthesis. Here, we obtained transgenic woodland strawberry with stable overexpression of FaMYB5, demonstrating that FaMYB5 can increase anthocyanin and proanthocyanidin content in roots, stems and leaves of woodland strawberry. In addition, bimolecular fluorescence complementation assays and yeast two-hybridization demonstrated that the N-terminal (1-99aa) of FaBBX24 interacts with FaMYB5. Transient co-expression of FaBBX24 and FaMYB5 in cultivated strawberry 'Xiaobai' showed that co-expression strongly promoted the expression of F3'H, 4CL-2, TT12, AHA10 and ANR and then increased the content of anthocyanin and proanthocyanidin in strawberry fruits. We also determined that FaBBX24 is also a positive regulator of anthocyanin and proanthocyanidin biosynthesis in strawberry. The results reveal a novel mechanism by which the FaMYB5-FaBBX24 module collaboratively regulates anthocyanin and proanthocyanidin in strawberry fruit.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Haoru Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (L.Z.); (Y.W.); (M.Y.); (L.J.); (N.Z.); (Y.L.); (Q.C.); (Y.Z.); (Y.W.); (M.L.); (Y.Z.); (Y.L.)
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211
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Jiang L, Gao Y, Han L, Zhang W, Fan P. Designing plant flavonoids: harnessing transcriptional regulation and enzyme variation to enhance yield and diversity. FRONTIERS IN PLANT SCIENCE 2023; 14:1220062. [PMID: 37575923 PMCID: PMC10420081 DOI: 10.3389/fpls.2023.1220062] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 07/05/2023] [Indexed: 08/15/2023]
Abstract
Plant synthetic biology has emerged as a powerful and promising approach to enhance the production of value-added metabolites in plants. Flavonoids, a class of plant secondary metabolites, offer numerous health benefits and have attracted attention for their potential use in plant-based products. However, achieving high yields of specific flavonoids remains challenging due to the complex and diverse metabolic pathways involved in their biosynthesis. In recent years, synthetic biology approaches leveraging transcription factors and enzyme diversity have demonstrated promise in enhancing flavonoid yields and expanding their production repertoire. This review delves into the latest research progress in flavonoid metabolic engineering, encompassing the identification and manipulation of transcription factors and enzymes involved in flavonoid biosynthesis, as well as the deployment of synthetic biology tools for designing metabolic pathways. This review underscores the importance of employing carefully-selected transcription factors to boost plant flavonoid production and harnessing enzyme promiscuity to broaden flavonoid diversity or streamline the biosynthetic steps required for effective metabolic engineering. By harnessing the power of synthetic biology and a deeper understanding of flavonoid biosynthesis, future researchers can potentially transform the landscape of plant-based product development across the food and beverage, pharmaceutical, and cosmetic industries, ultimately benefiting consumers worldwide.
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Affiliation(s)
- Lina Jiang
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Yifei Gao
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Leiqin Han
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Wenxuan Zhang
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Pengxiang Fan
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
- Key Laboratory of Horticultural Plants Growth and Development, Agricultural Ministry of China, Hangzhou, China
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212
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D'Amelia V, Curaba J, Abid MA, Esposito S, Cavagnaro P, Carputo D, Iorizzo M. Functional characterization of DcMYB11, an R2R3 MYB associated with the purple pigmentation of carrot petiole. PLANTA 2023; 258:50. [PMID: 37488440 DOI: 10.1007/s00425-023-04200-5] [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: 05/29/2023] [Accepted: 07/04/2023] [Indexed: 07/26/2023]
Abstract
MAIN CONCLUSION DcMYB11, an R2R3 MYB gene associated with petiole anthocyanin pigmentation in carrot, was functionally characterized. A putative enhancer sequence is able to increase DcMYB11 activity. The accumulation of anthocyanin pigments can exhibit different patterns across plant tissues and crop varieties. This variability allowed the investigation of the molecular mechanisms behind the biosynthesis of these pigments in several plant species. Among crops, carrots have a well-defined anthocyanin pigmentation pattern depending on the genic background. In this work, we report on the discovery of DNA structural differences affecting the activity of an R2R3 MYB (encoded by DcMYB11) involved in anthocyanin regulation in carrot petiole. To this end, we first verified the function of DcMYB11 using heterologous systems and identified three different alleles which may explain differences in petiole pigmentation. Characterization of the DcMYB11 alleles at the 5' upstream sequence unveiled a sequence that functions as a putative enhancer. In conclusion, this study provides novel insight into the molecular mechanisms controlling anthocyanin accumulation in carrot. By these outcomes, we expanded our knowledge on the cis-regulatory sequences in plants.
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Affiliation(s)
- Vincenzo D'Amelia
- Institute of Bioscience and BioResources, National Research Council, Via Università 100, 80055, Portici, Italy
- Department of Agricultural Sciences, University of Naples Federico II, Via Università 100, 80055, Portici, Italy
| | - Julien Curaba
- Horticulture Science Department, Plants for Human Health Institute, North Carolina State University, North Carolina Research Campus, Kannapolis, NC, USA
| | - Muhammad Ali Abid
- Horticulture Science Department, Plants for Human Health Institute, North Carolina State University, North Carolina Research Campus, Kannapolis, NC, USA
| | - Salvatore Esposito
- CREA Research Centre for Cereal and Industrial Crops (CREA-CI), 71122, Foggia, Italy
| | - Pablo Cavagnaro
- National Scientific and Technical Research Council (CONICET), National Institute of Agricultural Technology (INTA) E.E.A. La Consulta, La Consulta CC8, San Carlos, 5567, Mendoza, Argentina
| | - Domenico Carputo
- Department of Agricultural Sciences, University of Naples Federico II, Via Università 100, 80055, Portici, Italy
| | - Massimo Iorizzo
- Horticulture Science Department, Plants for Human Health Institute, North Carolina State University, North Carolina Research Campus, Kannapolis, NC, USA.
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213
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Ran C, Zhang Y, Chang F, Yang X, Liu Y, Wang Q, Zhu W. Genome-Wide Analyses of SlFWL Family Genes and Their Expression Profiles under Cold, Heat, Salt and Drought Stress in Tomato. Int J Mol Sci 2023; 24:11783. [PMID: 37511542 PMCID: PMC10380795 DOI: 10.3390/ijms241411783] [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: 05/28/2023] [Revised: 07/04/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023] Open
Abstract
PLAC8 is a cysteine-rich protein that serves as a central mediator of tumor evolution in mammals. PLAC8 motif-containing proteins widely distribute in fungi, algae, higher plants and animals that have been described to be implicated in fruit size, cell number and the transport of heavy metals such as cadmium or zinc. In tomatoes, FW2.2 is a PLAC8 motif-containing gene that negatively controls fruit size by regulating cell division and expansion in the carpel ovary during fruit development. However, despite FW2.2, other FWL (FW2.2-Like) genes in tomatoes have not been investigated. In this study, we identified the 21 SlFWL genes, including FW2.2, examined their expression profiles under various abiotic adversity-related conditions. The SlFWL gene structures and motif compositions are conserved, indicating that tomato SlFWL genes may have similar roles. Cis-acting element analysis revealed that the SlFWL genes may participate in light and abiotic stress responses, and they also interacted with a variety of phytohormone-responsive proteins and plant development elements. Phylogenetic analyses were performed on five additional plant species, including Arabidopsis, pepper, soybean, rice and maize, these genes were classified into five subfamilies. Based on the results of collinearity analyses, the SlFWL genes have a tighter homologous evolutionary relationship with soybean, and these orthologous FWL gene pairs might have the common ancestor. Expression profiling of SlFWL genes show that they were all responsive to abiotic stresses, each subgroup of genes exhibited a different expression trend. Our findings provide a strong foundation for investigating the function and abiotic stress responses of the SlFWL family genes.
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Affiliation(s)
- Chunxia Ran
- Shanghai Collaborative Innovation Center of Plant Germplasm Resources Development, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
- Shanghai Key Laboratory of Protected Horticulture Technology, The Protected Horticulture Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Yingying Zhang
- Shanghai Collaborative Innovation Center of Plant Germplasm Resources Development, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
- Shanghai Key Laboratory of Protected Horticulture Technology, The Protected Horticulture Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Feifei Chang
- Shanghai Key Laboratory of Protected Horticulture Technology, The Protected Horticulture Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Xuedong Yang
- Shanghai Key Laboratory of Protected Horticulture Technology, The Protected Horticulture Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Yahui Liu
- Shanghai Key Laboratory of Protected Horticulture Technology, The Protected Horticulture Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Quanhua Wang
- Shanghai Collaborative Innovation Center of Plant Germplasm Resources Development, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Weimin Zhu
- Shanghai Collaborative Innovation Center of Plant Germplasm Resources Development, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
- Shanghai Key Laboratory of Protected Horticulture Technology, The Protected Horticulture Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
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214
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Huang F, Luo X, Ou Y, Gao Z, Tang Q, Chu Z, Zhu X, He Y. Control of histone demethylation by nuclear-localized α-ketoglutarate dehydrogenase. Science 2023; 381:eadf8822. [PMID: 37440635 DOI: 10.1126/science.adf8822] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 05/19/2023] [Indexed: 07/15/2023]
Abstract
Methylations on nucleosomal histones play fundamental roles in regulating eukaryotic transcription. Jumonji C domain-containing histone demethylases (JMJs) dynamically control the level of histone methylations. However, how JMJ activity is generally regulated is unknown. We found that the tricarboxylic acid cycle-associated enzyme α-ketoglutarate (α-KG) dehydrogenase (KGDH) entered the nucleus, where it interacted with various JMJs to regulate α-KG-dependent histone demethylations by JMJs, and thus controlled genome-wide gene expression in plants. We show that nuclear targeting is regulated by environmental signals and that KGDH is enriched at thousands of loci in Arabidopsis thaliana. Chromatin-bound KGDH catalyzes α-KG decarboxylation and thus may limit its local availability to KGDH-coupled JMJs, inhibiting histone demethylation. Thus, our results uncover a regulatory mechanism for histone demethylations by JMJs.
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Affiliation(s)
- Fei Huang
- National Key Laboratory of Wheat Improvement, Peking-Tsinghua Center for Life Sciences, School of Advanced Agricultural Sciences, Peking University, Beijing 100871, China
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences (CAS), Shanghai 201602, China
| | - Xiao Luo
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences (CAS), Shanghai 201602, China
- Peking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agricultural Sciences in Weifang, Shandong 261325, China
| | - Yang Ou
- National Key Laboratory of Wheat Improvement, Peking-Tsinghua Center for Life Sciences, School of Advanced Agricultural Sciences, Peking University, Beijing 100871, China
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences (CAS), Shanghai 201602, China
| | - Zhaoxu Gao
- National Key Laboratory of Wheat Improvement, Peking-Tsinghua Center for Life Sciences, School of Advanced Agricultural Sciences, Peking University, Beijing 100871, China
| | - Qiming Tang
- National Key Laboratory for Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, CAS, Shanghai, 200032, China
| | - Zhenzhen Chu
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences (CAS), Shanghai 201602, China
| | - Xinguang Zhu
- National Key Laboratory for Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, CAS, Shanghai, 200032, China
| | - Yuehui He
- National Key Laboratory of Wheat Improvement, Peking-Tsinghua Center for Life Sciences, School of Advanced Agricultural Sciences, Peking University, Beijing 100871, China
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences (CAS), Shanghai 201602, China
- Peking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agricultural Sciences in Weifang, Shandong 261325, China
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215
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Hu R, Wang J, Yang H, Wei D, Tang Q, Yang Y, Tian S, Wang Z. Comparative transcriptome analysis reveals the involvement of an MYB transcriptional activator, SmMYB108, in anther dehiscence in eggplant. FRONTIERS IN PLANT SCIENCE 2023; 14:1164467. [PMID: 37521920 PMCID: PMC10382176 DOI: 10.3389/fpls.2023.1164467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 06/16/2023] [Indexed: 08/01/2023]
Abstract
Male sterility is a highly attractive agronomic trait as it effectively prevents self-fertilization and facilitates the production of high-quality hybrid seeds in plants. Timely release of mature pollen following anther dehiscence is essential for stamen development in flowering plants. Although several theories have been proposed regarding this, the specific mechanism of anther development in eggplant remains elusive. In this study, we selected an R2R3-MYB transcription factor gene, SmMYB108, that encodes a protein localized primarily in the nucleus by comparing the transcriptomics of different floral bud developmental stages of the eggplant fertile line, F142. Quantitative reverse transcription polymerase chain reaction revealed that SmMYB108 was preferentially expressed in flowers, and its expression increased significantly on the day of flowering. Overexpression of SmMYB108 in tobacco caused anther dehiscence. In addition, we found that SmMYB108 primarily functions as a transcriptional activator via C-terminal activation (amino acid 262-317). Yeast one-hybrid and dual-luciferase reporter assays revealed that genes (SmMYB21, SmARF6, and SmARF8) related to anther development targeted the SmMYB108 promoter. Overall, our results provide insights into the molecular mechanisms involved in the regulation of anther development by SmMYB108.
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Affiliation(s)
- Ruolin Hu
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Olericulture, Chongqing, China
| | - Jiali Wang
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Olericulture, Chongqing, China
| | - Huiqing Yang
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Olericulture, Chongqing, China
| | - Dayong Wei
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Olericulture, Chongqing, China
| | - Qinglin Tang
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Olericulture, Chongqing, China
| | - Yang Yang
- The Institute of Vegetables and Flowers, Chongqing Academy of Agricultural Sciences, Chongqing, China
| | - Shibing Tian
- The Institute of Vegetables and Flowers, Chongqing Academy of Agricultural Sciences, Chongqing, China
| | - Zhimin Wang
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Olericulture, Chongqing, China
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216
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Luo Q, Wei W, Yang YY, Wu CJ, Chen JY, Lu WJ, Kuang JF, Shan W. E3 ligase MaNIP1 degradation of NON-YELLOW COLORING1 at high temperature inhibits banana degreening. PLANT PHYSIOLOGY 2023; 192:1969-1981. [PMID: 36794407 PMCID: PMC10315274 DOI: 10.1093/plphys/kiad096] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 01/17/2023] [Accepted: 01/31/2023] [Indexed: 06/18/2023]
Abstract
Banana (Musa acuminata) fruit ripening under high temperatures (>24 °C) undergoes green ripening due to failure of chlorophyll degradation, which greatly reduces marketability. However, the mechanism underlying high temperature-repressed chlorophyll catabolism in banana fruit is not yet well understood. Here, using quantitative proteomic analysis, 375 differentially expressed proteins were identified in normal yellow and green ripening in banana. Among these, one of the key enzymes involved in chlorophyll degradation, NON-YELLOW COLORING 1 (MaNYC1), exhibited reduced protein levels when banana fruit ripened under high temperature. Transient overexpression of MaNYC1 in banana peels resulted in chlorophyll degradation under high temperature, which weakens the green ripening phenotype. Importantly, high temperature induced MaNYC1 protein degradation via the proteasome pathway. A banana RING E3 ligase, NYC1-interacting protein 1 (MaNIP1), was found to interact with and ubiquitinate MaNYC1, leading to its proteasomal degradation. Furthermore, transient overexpression of MaNIP1 attenuated MaNYC1-induced chlorophyll degradation in banana fruits, indicating that MaNIP1 negatively regulates chlorophyll catabolism by affecting MaNYC1 degradation. Taken together, the findings establish a post-translational regulatory module of MaNIP1-MaNYC1 that mediates high temperature-induced green ripening in bananas.
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Affiliation(s)
- Qi Luo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruit and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Wei Wei
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruit and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Ying-ying Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruit and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Chao-jie Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruit and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Jian-ye Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruit and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Wang-jin Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruit and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Jian-fei Kuang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruit and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Wei Shan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruit and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
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217
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Zhou F, Wu H, Chen Y, Wang M, Tuskan GA, Yin T. Function and molecular mechanism of a poplar placenta limited MIXTA gene in regulating differentiation of plant epidermal cells. Int J Biol Macromol 2023; 242:124743. [PMID: 37150377 DOI: 10.1016/j.ijbiomac.2023.124743] [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: 03/21/2023] [Revised: 04/20/2023] [Accepted: 05/01/2023] [Indexed: 05/09/2023]
Abstract
The placenta in fruits of most plants either desiccate and shrink as the fruits mature or develop further to form the fleshy tissues. In poplars, placental epidermal cells protrude collectively to produce catkin fibers. In this study, three carpel limited MIXTA genes, PdeMIXTA02, PdeMIXTA03, PdeMIXTA04, were find to specifically expressed in carpel immediately after pollination. Heterologous expression of the three genes in Arabidopsis demonstrated that PdeMIXTA04 significantly promoted trichomes density and could restore trichomes in the trichomeless mutant. By contrast, such functions were not observed with PdeMIXTA02, PdeMIXTA03. In situ hybridization revealed that PdeMIXTA04 was explicitly expressed in poplar placental epidermal cells. We also confirmed trichome-specific expression of the PdeMIXTA04 promoter. Multiple experimental proofs have confirmed the interaction between PdeMIXTA04, PdeMYC and PdeWD40, indicating PdeMIXTA04 functioned through the MYB-bHLH-WD40 ternary complex. Our work provided distinctive understanding of the molecular mechanism triggering differentiation of poplar catkins.
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Affiliation(s)
- Fangwei Zhou
- State Key Laboratory of Tree Genetics and Breeding, Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Tree Genetics and Biotechnology of Educational Department of China, Key Laboratory of Tree Genetics and Silvicultural Sciences of Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China
| | - Huaitong Wu
- State Key Laboratory of Tree Genetics and Breeding, Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Tree Genetics and Biotechnology of Educational Department of China, Key Laboratory of Tree Genetics and Silvicultural Sciences of Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China
| | - Yingnan Chen
- State Key Laboratory of Tree Genetics and Breeding, Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Tree Genetics and Biotechnology of Educational Department of China, Key Laboratory of Tree Genetics and Silvicultural Sciences of Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China
| | - Mingxiu Wang
- State Key Laboratory of Tree Genetics and Breeding, Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Tree Genetics and Biotechnology of Educational Department of China, Key Laboratory of Tree Genetics and Silvicultural Sciences of Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China
| | - Gerald A Tuskan
- Center for Bioenergy Innovation, Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Tongming Yin
- State Key Laboratory of Tree Genetics and Breeding, Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Tree Genetics and Biotechnology of Educational Department of China, Key Laboratory of Tree Genetics and Silvicultural Sciences of Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China.
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218
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Li H, Yang J, Ma R, An X, Pan F, Zhang S, Fu Y. Genome-wide identification and expression analysis of MYB gene family in Cajanus cajan and CcMYB107 improves plant drought tolerance. PHYSIOLOGIA PLANTARUM 2023; 175:e13954. [PMID: 37318225 DOI: 10.1111/ppl.13954] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 06/06/2023] [Accepted: 06/12/2023] [Indexed: 06/16/2023]
Abstract
MYB transcription factor (TF) is one of the largest superfamilies that play a vital role in multiple plant biological processes. However, the MYB family has not been comprehensively identified and functionally verified in Cajanus cajan, which is the sixth most important legume crop. Here, 170 CcR2R3-MYBs were identified and divided into 43 functional subgroups. Segmental and tandem duplications and alternative splicing events were found and promoted the expansion of the CcR2R3-MYB gene family. Functional prediction results showed that CcR2R3-MYBs were mainly involved in secondary metabolism, cell fate and identity, developmental processes, and responses to abiotic stress. Cis-acting element analysis of promoters revealed that stress response elements were widespread in the above four functional branches, further suggesting CcR2R3-MYBs were extensively involved in abiotic stress response. The transcriptome data and qRT-PCR results indicated that most of the CcR2R3-MYB genes responded to various stresses, of which the expression of CcMYB107 was significantly induced by drought stress. Overexpression of CcMYB107 enhanced antioxidant enzyme activity and increased proline and lignin accumulation, thus improving the drought resistance of C. cajan. Furthermore, Overexpression of CcMYB107 up-regulated the expression of stress-related genes and lignin biosynthesis genes after drought stress. Our findings established a strong foundation for the investigation of biological function of CcR2R3-MYB TFs in C. cajan.
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Affiliation(s)
- Hongquan Li
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, China
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, Harbin, China
| | - Jie Yang
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, China
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, Harbin, China
| | - Ruijin Ma
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, China
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, Harbin, China
| | - Xiaoli An
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, China
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, Harbin, China
| | - Feng Pan
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, China
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, Harbin, China
| | - Su Zhang
- College of Forestry, Beijing Forestry University, Beijing, China
| | - Yujie Fu
- College of Forestry, Beijing Forestry University, Beijing, China
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219
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Luan A, Zhang W, Yang M, Zhong Z, Wu J, He Y, He J. Unveiling the molecular mechanism involving anthocyanins in pineapple peel discoloration during fruit maturation. Food Chem 2023; 412:135482. [PMID: 36753941 DOI: 10.1016/j.foodchem.2023.135482] [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: 06/26/2022] [Revised: 12/29/2022] [Accepted: 01/11/2023] [Indexed: 01/15/2023]
Abstract
Peel color is a key factor that affects the fruit's aesthetic and economic values. Limited knowledge is available on the regulation of pineapple peel discoloration. Here, we report that a decrease in anthocyanin biosynthesis, particularly cyanidin, is predominantly associated with the pineapple peel color change during maturation. The findings suggest that the changes in the expression of key structural genes (early and late biosynthetic genes) of the anthocyanin (cyanidin) biosynthesis pathway are responsible for peel discoloration. Based on a gene co-expression analysis and a transient expression, two transcription factors i.e., AcHOX21 and AcMYB12, were identified, whose' downregulation leads to reduced anthocyanin accumulation with fruit maturation. The endogenous levels of jasmonic acid, gibberellic acid, and auxins are also involved in anthocyanin-content-led peel discoloration. Overall, the discovery of genes regulating anthocyanin biosynthesis in pineapple peel provides a theoretical basis for improving the fruit's aesthetic value through genetic engineering.
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Affiliation(s)
- Aiping Luan
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Haikou 571101, China
| | - Wei Zhang
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Haikou 571101, China; Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Mingzhe Yang
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Haikou 571101, China; Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Ziqin Zhong
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Haikou 571101, China; Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Jing Wu
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Haikou 571101, China; Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Yehua He
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Junhu He
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Haikou 571101, China.
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220
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Ahmad I, Soni SK, M M, Pandey D. In-silico mining and characterization of MYB family genes in wilt-resistant hybrid guava (Psidium guajava × Psidium molle). J Genet Eng Biotechnol 2023; 21:74. [PMID: 37389653 DOI: 10.1186/s43141-023-00528-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 06/20/2023] [Indexed: 07/01/2023]
Abstract
BACKGROUND The MYB family is one of the most significant groups of transcription factors in plants. However, several MYBs have been linked to secondary metabolism and are important for determining the color of fruit's peel and pulp. Despite being a substantial fruit crop in tropical and subtropical areas of the world, wilt-resistant hybrid guava (Psidium guajava × Psidium molle; PGPM) has not yet been the subject of a thorough examination. This study's goal was to assess the expression of MYB in guava fruit pulp, roots, and seeds to predict its function by in silico analysis of the guava root transcriptome data. RESULTS In the current study, we have mined the MYBs family of MYB genes from the transcriptome of the PGPM guava root. We have mined 15 distinct MYB transcription factor genes/transcripts viz MYB3, MYB4, MYB23, MYB86, MYB90, MYB308, MYB5, MYB82, MYB114, MYB6, MYB305, MYB44, MYB51, MYB46, and MYB330. From the analyses, it was found that R2-MYB and R3-MYB domains are conserved in all known guava MYB proteins. The expression of six different MYB TFs was examined using semi-quantitative RT-PCR in "Shweta" pulp (white colour pulp), "Lalit" pulp (red color pulp), "Lalit" root, and "Lalit" seed. CONCLUSION There were 15 MYB family members observed in guava. They were unequally distributed across the chromosomes, most likely as a result of gene duplication. Additionally, the expression patterns of the particular MYBs showed that MYB may be involved in the control of wilt, fruit ripening, seed development, and root development. Our results allow for a more thorough functional characterization of the guava MYB family genes and open the door to additional research into one essential MYB transcription factor family of genes and its involvement in the growth and ripening of guava fruit.
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Affiliation(s)
- Israr Ahmad
- Division of Crop Improvement and Biotechnology, ICAR-Central Institute for Subtropical Horticulture, Rehmankhera, P.O. Kakori, Lucknow, Uttar Pradesh, 226101, India.
| | - Sumit K Soni
- Division of Crop Improvement and Biotechnology, ICAR-Central Institute for Subtropical Horticulture, Rehmankhera, P.O. Kakori, Lucknow, Uttar Pradesh, 226101, India.
| | - Muthukumar M
- Division of Crop Improvement and Biotechnology, ICAR-Central Institute for Subtropical Horticulture, Rehmankhera, P.O. Kakori, Lucknow, Uttar Pradesh, 226101, India
| | - Devendra Pandey
- Division of Crop Improvement and Biotechnology, ICAR-Central Institute for Subtropical Horticulture, Rehmankhera, P.O. Kakori, Lucknow, Uttar Pradesh, 226101, India
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221
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Ren C, Li Z, Song P, Wang Y, Liu W, Zhang L, Li X, Li W, Han D. Overexpression of a Grape MYB Transcription Factor Gene VhMYB2 Increases Salinity and Drought Tolerance in Arabidopsis thaliana. Int J Mol Sci 2023; 24:10743. [PMID: 37445921 DOI: 10.3390/ijms241310743] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/19/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
In viticulture, the highly resistant rootstock 'Beta' is widely used in Chinese grape production to avoid the effects of soil salinization and drought on grape growth. However, the mechanism of high resistance to abiotic stress in the 'Beta' rootstock is not clear. In this study, we demonstrated that VhMYB2 as a transcription factor made a significant contribution to salinity and drought stress, which was isolated from the 'Beta' rootstock. The coding sequence of the VhMYB2 gene was 858 bp, encoding 285 amino acids. The subcellular localization of VhMYB2 was located in the nucleus of tobacco epidermal cells. Moreover, RT-qPCR found that VhMYB2 was predominantly expressed in the mature leaf and root of the grape. Under salinity and drought stress, overexpressing VhMYB2 showed a higher resistant phenotype and survival rates in A. thaliana while the transgenic lines had a survival advantage by measuring the contents of proline, chlorophyll, and MDA, and activities of POD, SOD, and CAT, and expression levels of related stress response genes. The results reveal that VhMYB2 may be an important transcription factor regulating 'Beta' resistance in response to abiotic stress.
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Affiliation(s)
- Chuankun Ren
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions, College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin 150030, China
| | - Zhenghao Li
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions, College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin 150030, China
| | - Penghui Song
- Institute of Rural Revitalization Science and Technology, Heilongjiang Academy of Agricultural Sciences, Harbin 150028, China
| | - Yu Wang
- Horticulture Branch of Heilongjiang Academy of Agricultural Sciences, Harbin 150040, China
| | - Wanda Liu
- Horticulture Branch of Heilongjiang Academy of Agricultural Sciences, Harbin 150040, China
| | - Lihua Zhang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions, College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin 150030, China
| | - Xingguo Li
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions, College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin 150030, China
| | - Wenhui Li
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions, College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin 150030, China
| | - Deguo Han
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions, College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin 150030, China
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222
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Bobadilla LK, Baek Y, Tranel PJ. Comparative transcriptomic analysis of male and females in the dioecious weeds Amaranthus palmeri and Amaranthus tuberculatus. BMC PLANT BIOLOGY 2023; 23:339. [PMID: 37365527 DOI: 10.1186/s12870-023-04286-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 05/16/2023] [Indexed: 06/28/2023]
Abstract
BACKGROUND Waterhemp (Amaranthus tuberculatus (Moq.) Sauer) and Palmer amaranth (Amaranthus palmeri S. Wats.) are two dioecious and important weed species in the world that can rapidly evolve herbicide-resistance traits. Understanding these two species' dioecious and sex-determination mechanisms could open opportunities for new tools to control them. This study aims to identify the differential expression patterns between males and females in A. tuberculatus and A. palmeri. Multiple analyses, including differential expression, co-expression, and promoter analyses, used RNA-seq data from multiple tissue types to identify putative essential genes for sex determination in both dioecious species. RESULTS Genes were identified as potential key players for sex determination in A. palmeri. Genes PPR247, WEX, and ACD6 were differentially expressed between the sexes and located at scaffold 20 within or near the male-specific Y (MSY) region. Multiple genes involved with flower development were co-expressed with these three genes. For A. tuberculatus, no differentially expressed gene was identified within the MSY region; however, multiple autosomal class B and C genes were identified as differentially expressed and possible candidate genes. CONCLUSIONS This is the first study comparing the global expression profile between males and females in dioecious weedy Amaranthus species. Results narrow down putative essential genes for sex-determination in A. palmeri and A. tuberculatus and also strengthen the hypothesis of two different evolutionary events for dioecy within the genus.
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Affiliation(s)
- Lucas K Bobadilla
- Department of Crop Sciences, University of Illinois, Urbana, IL, USA
| | - Yousoon Baek
- Department of Crop Sciences, University of Illinois, Urbana, IL, USA
| | - Patrick J Tranel
- Department of Crop Sciences, University of Illinois, Urbana, IL, USA.
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223
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Hu J, Zou S, Huang J, Huan X, Jin X, Zhou L, Zhao K, Han Y, Wang S. PagMYB151 facilitates proline accumulation to enhance salt tolerance of poplar. BMC Genomics 2023; 24:345. [PMID: 37349699 DOI: 10.1186/s12864-023-09459-2] [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: 03/23/2023] [Accepted: 06/16/2023] [Indexed: 06/24/2023] Open
Abstract
Poplar is one of the main urban and rural greening and shade tree species in the northern hemisphere, but its growth and development is always restricted by salt stress. R2R3-MYB transcription factor family is commonly involved in many biological processes during plant growth and stress endurance. In this study, PagMYB151 (Potri.014G035100) one of R2R3-MYB members related to salt stress and expressed in both nucleus and cell membrane was cloned from Populus alba × P. glandulosa to perfect the salt tolerance mechanism. Morphological and physiological indexes regulated by PagMYB151 were detected using the PagMYB151 overexpression (OX) and RNA interference (RNAi) transgenic poplar lines. Under salt stress conditions, compared with RNAi and the non-transgenic wild-type (WT) plants, the plant height, both aboveground and underground part fresh weight of OX was significantly increased. In addition, OX has a longer and finer root structure and a larger root surface area. The root activity of OX was also enhanced, which was significantly different from RNAi but not from WT under salt treatment. Under normal conditions, the stomatal aperture of OX was larger than WT, whereas this phenotype was not obvious after salt stress treatment. In terms of physiological indices, OX enhanced the accumulation of proline but reduced the toxicity of malondialdehyde to plants under salt stress. Combing with the transcriptome sequencing data, 6 transcription factors induced by salt stress and co-expressed with PagMYB151 were identified that may cooperate with PagMYB151 to function in salt stress responding process. This study provides a basis for further exploring the molecular mechanism of poplar PagMYB151 transcription factor under abiotic stress.
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Affiliation(s)
- Jia Hu
- College of Forestry, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Shengqiang Zou
- College of Forestry, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | | | - Xuhui Huan
- College of Forestry, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Xia Jin
- College of Forestry, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Lieding Zhou
- College of Forestry, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Kai Zhao
- College of Forestry, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Youzhi Han
- College of Forestry, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Shengji Wang
- College of Forestry, Shanxi Agricultural University, Taigu, Shanxi, 030801, China.
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Guo X, Wang F, Fang D, Lin Q, Sahu SK, Luo L, Li J, Chen Y, Dong S, Chen S, Liu Y, Luo S, Guo Y, Liu H. The genome of Acorus deciphers insights into early monocot evolution. Nat Commun 2023; 14:3662. [PMID: 37339966 DOI: 10.1038/s41467-023-38836-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 05/17/2023] [Indexed: 06/22/2023] Open
Abstract
Acorales is the sister lineage to all the other extant monocot plants. Genomic resource enhancement of this genus can help to reveal early monocot genomic architecture and evolution. Here, we assemble the genome of Acorus gramineus and reveal that it has ~45% fewer genes than the majority of monocots, although they have similar genome size. Phylogenetic analyses based on both chloroplast and nuclear genes consistently support that A. gramineus is the sister to the remaining monocots. In addition, we assemble a 2.2 Mb mitochondrial genome and observe many genes exhibit higher mutation rates than that of most angiosperms, which could be the reason leading to the controversies of nuclear genes- and mitochondrial genes-based phylogenetic trees existing in the literature. Further, Acorales did not experience tau (τ) whole-genome duplication, unlike majority of monocot clades, and no large-scale gene expansion is observed. Moreover, we identify gene contractions and expansions likely linking to plant architecture, stress resistance, light harvesting, and essential oil metabolism. These findings shed light on the evolution of early monocots and genomic footprints of wetland plant adaptations.
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Affiliation(s)
- Xing Guo
- State Key Laboratory of Agricultural Genomics, BGI-Shenzhen, Shenzhen, Guangdong, 518083, PR China
| | - Fang Wang
- State Key Laboratory of Agricultural Genomics, BGI-Shenzhen, Shenzhen, Guangdong, 518083, PR China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Dongming Fang
- State Key Laboratory of Agricultural Genomics, BGI-Shenzhen, Shenzhen, Guangdong, 518083, PR China
| | - Qiongqiong Lin
- State Key Laboratory of Agricultural Genomics, BGI-Shenzhen, Shenzhen, Guangdong, 518083, PR China
- College of Life Science, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China
| | - Sunil Kumar Sahu
- State Key Laboratory of Agricultural Genomics, BGI-Shenzhen, Shenzhen, Guangdong, 518083, PR China
| | - Liuming Luo
- State Key Laboratory of Agricultural Genomics, BGI-Shenzhen, Shenzhen, Guangdong, 518083, PR China
- College of Life Science, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China
| | - Jiani Li
- State Key Laboratory of Agricultural Genomics, BGI-Shenzhen, Shenzhen, Guangdong, 518083, PR China
- College of Life Sciences, Northwest University, Xi'an, Shaanxi, 710069, PR China
| | - Yewen Chen
- State Key Laboratory of Agricultural Genomics, BGI-Shenzhen, Shenzhen, Guangdong, 518083, PR China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Shanshan Dong
- Key Laboratory of Southern Subtropical Plant Diversity, Fairy Lake Botanical Garden, Shenzhen & Chinese Academy of Sciences, Shenzhen, Guangdong, 518004, PR China
| | - Sisi Chen
- Key Laboratory of Plant Resource Conservation and Sustainable Utilization, The Chinese Academy of Sciences, South China Botanical Garden, Guangzhou, Guangdong, 510650, PR China
| | - Yang Liu
- State Key Laboratory of Agricultural Genomics, BGI-Shenzhen, Shenzhen, Guangdong, 518083, PR China
- Key Laboratory of Southern Subtropical Plant Diversity, Fairy Lake Botanical Garden, Shenzhen & Chinese Academy of Sciences, Shenzhen, Guangdong, 518004, PR China
| | - Shixiao Luo
- Key Laboratory of Plant Resource Conservation and Sustainable Utilization, The Chinese Academy of Sciences, South China Botanical Garden, Guangzhou, Guangdong, 510650, PR China
| | - Yalong Guo
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, PR China
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, PR China
| | - Huan Liu
- State Key Laboratory of Agricultural Genomics, BGI-Shenzhen, Shenzhen, Guangdong, 518083, PR China.
- BGI Life Science Joint Research Center, Northeast Forestry University, Harbin, Heilongjiang, 150040, PR China.
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Tan C, Chen H, Dai G, Liu Y, Shen W, Wang C, Liu D, Liu S, Xu S, Zhu B, Chen D, Cui C. Identification and characterization of the gene BraANS.A03 associated with purple leaf color in pak choi (Brassica rapa L. ssp. chinensis). PLANTA 2023; 258:19. [PMID: 37314587 DOI: 10.1007/s00425-023-04171-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 05/31/2023] [Indexed: 06/15/2023]
Abstract
MAIN CONCLUSION BraANS.A3 was the key gene controlling purple leaf color in pak choi, and two short fragments of promoter region in green pak choi might be interfering its normal expression. Pak choi (B. rapa L. ssp. chinensis) is an influential and important vegetable with green, yellow, or purple leaves that is cultivated worldwide. The purple leaves are rich in anthocyanins, but the underlying genetics and evolution have yet to be extensively studied. Free-hand sections of the purple leaves indicated that anthocyanins mainly accumulate throughout the adaxial and abaxial epidermal leaf cells. Segregation analyses of an F2 population of a B. rapa ssp. chinensis L. purple leaf mutant ZBC indicated that the purple trait is controlled by an incompletely dominant nuclear gene. Bulked segregant analysis (BSA) showed that the key genes controlling the trait were between 24.25 and 38.10 Mb on chromosome A03 of B. rapa. From the annotated genes, only BraA03g050560.3C, homologous to Arabidopsis AtANS, was related to the anthocyanin synthesis pathway. Genome annotation results and transcriptional sequencing analyses revealed that the BraANS.A3 gene was involved in the purple leaf trait. qRT-PCR analyses showed that BraANS.A3 was highly upregulated in ZBC but hardly expressed in the leaves of an inbred homozygous line of B. campestris ssp. chinensis L. green leaf mutant WTC, indicating that BraANS.A3 played a key role catalyzing anthocyanin synthesis in ZBC. Full-length sequence alignment of BraANS.A3 in WTC and ZBC showed that it was highly conserved in the gene region, with significant variation in the promoter region. In particular, the insertion of two short fragments of the promoter region in WTC may interfere with its normal expression. The promoter regions of ANS in six Brassica species all had multiple cis-elements involved in responses to abscisic acid, light, and stress, suggesting that ANS may be involved in multiple metabolic pathways or biological processes. Protein-protein interactions predicted that BraANS.A3 interacts with virtually all catalytic proteins in the anthocyanin synthesis pathway and has a strong relationship with Transparent Testa 8 (TT8). These results suggest that BraANS.A3 promotes anthocyanin accumulation in purple pak choi and provide new insights into the functional analysis of anthocyanin-related genes in Chinese cabbage and transcriptional regulatory networks.
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Affiliation(s)
- Chen Tan
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, 341000, China
| | - Haidong Chen
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, 341000, China
| | - Guoqiang Dai
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, 341000, China
| | - Yi Liu
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, 341000, China
| | - Wenjie Shen
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, 341000, China
| | - Chenchen Wang
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, 341000, China
| | - Duannv Liu
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, 341000, China
| | - Sijia Liu
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, 341000, China
| | - Shuqi Xu
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, 341000, China
| | - Bo Zhu
- 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.
| | - Cheng Cui
- Environment-Friendly Crop Germplasm Innovation and Genetic Improvement Key Laboratory of Sichuan Province, Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China.
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Yu Y, Zhang S, Yu Y, Cui N, Yu G, Zhao H, Meng X, Fan H. The pivotal role of MYB transcription factors in plant disease resistance. PLANTA 2023; 258:16. [PMID: 37311886 DOI: 10.1007/s00425-023-04180-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 06/06/2023] [Indexed: 06/15/2023]
Abstract
MAIN CONCLUSION MYB transcription factors are essential for diverse biology processes in plants. This review has focused on the potential molecular actions of MYB transcription factors in plant immunity. Plants possess a variety of molecules to defend against disease. Transcription factors (TFs) serve as gene connections in the regulatory networks controlling plant growth and defense against various stressors. As one of the largest TF families in plants, MYB TFs coordinate molecular players that modulate plant defense resistance. However, the molecular action of MYB TFs in plant disease resistance lacks a systematic analysis and summary. Here, we describe the structure and function of the MYB family in the plant immune response. Functional characterization revealed that MYB TFs often function either as positive or negative modulators towards different biotic stressors. Moreover, the MYB TF resistance mechanisms are diverse. The potential molecular actions of MYB TFs are being analyzed to uncover functions by controlling the expression of resistance genes, lignin/flavonoids/cuticular wax biosynthesis, polysaccharide signaling, hormone defense signaling, and the hypersensitivity response. MYB TFs have a variety of regulatory modes that fulfill pivotal roles in plant immunity. MYB TFs regulate the expression of multiple defense genes and are, therefore, important for increasing plant disease resistance and promoting agricultural production.
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Affiliation(s)
- Yongbo Yu
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, China
| | - Shuo Zhang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, China
| | - Yang Yu
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, China
| | - Na Cui
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, China
| | - Guangchao Yu
- College of Chemistry and Life Sciences, Anshan Normal University, Anshan, China
| | - Hongyan Zhao
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, China
| | - Xiangnan Meng
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, China.
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang Agricultural University, Shenyang, China.
| | - Haiyan Fan
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, China.
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang Agricultural University, Shenyang, China.
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227
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Busche M, Pucker B, Weisshaar B, Stracke R. Three R2R3-MYB transcription factors from banana (Musa acuminata) activate structural anthocyanin biosynthesis genes as part of an MBW complex. BMC Res Notes 2023; 16:103. [PMID: 37312204 DOI: 10.1186/s13104-023-06375-2] [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: 08/22/2022] [Accepted: 06/02/2023] [Indexed: 06/15/2023] Open
Abstract
OBJECTIVE Bananas are one of the most popular fruits in the world, providing food security and employment opportunities in several developing countries. Increasing the anthocyanin content of banana fruit could improve the health-promoting properties. Anthocyanin biosynthesis is largely regulated at the transcriptional level. However, relatively little is known about the transcriptional activation of anthocyanin biosynthesis in banana. RESULTS We analysed the regulatory activity of three Musa acuminata MYBs that were predicted by bioinformatic analysis to transcriptionally regulate anthocyanin biosynthesis in banana. MaMYBA1, MaMYBA2 and MaMYBPA2 did not complement the anthocyanin-deficient phenotype of the Arabidopsis thaliana pap1/pap2 mutant. However, co-transfection experiments in A. thaliana protoplasts showed that MaMYBA1, MaMYBA2 and MaMYBPA2 function as components of a transcription factor complex with a bHLH and WD40 protein, the so called MBW complex, resulting in the activation of the A. thaliana ANTHOCYANIDIN SYNTHASE and DIHYDROFLAVONOL 4-REDUCTASE promoters. The activation potential of MaMYBA1, MaMYBA2 and MaMYBPA2 was increased when combined with the monocot Zea mays bHLH ZmR instead of the dicot AtEGL3. This work paves the path towards decoding the MBW complex-mediated transcriptional activation of anthocyanin biosynthesis in banana. It will also facilitate research towards increased anthocyanin content in banana and other monocot crops.
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Affiliation(s)
- Mareike Busche
- Genetics and Genomics of Plants, Faculty of Biology, Bielefeld University, 33615, Bielefeld, Germany
| | - Boas Pucker
- Institute of Plant Biology & Braunschweig Integrated Centre of Systems Biology (BRICS), TU Braunschweig, 38106, Braunschweig, Germany
| | - Bernd Weisshaar
- Genetics and Genomics of Plants, Faculty of Biology, Bielefeld University, 33615, Bielefeld, Germany
| | - Ralf Stracke
- Genetics and Genomics of Plants, Faculty of Biology, Bielefeld University, 33615, Bielefeld, Germany.
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228
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Yang Y, Zhu J, Wang H, Guo D, Wang Y, Mei W, Peng S, Dai H. Systematic investigation of the R2R3-MYB gene family in Aquilaria sinensis reveals a transcriptional repressor AsMYB054 involved in 2-(2-phenylethyl)chromone biosynthesis. Int J Biol Macromol 2023:125302. [PMID: 37315664 DOI: 10.1016/j.ijbiomac.2023.125302] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/19/2023] [Accepted: 06/04/2023] [Indexed: 06/16/2023]
Abstract
Trees in the genus Aquilaria produce agarwood, a valuable resin used in medicine, perfumes, and incense. 2-(2-Phenethyl)chromones (PECs) are characteristic components of agarwood; however, molecular mechanisms underlying PEC biosynthesis and regulation remain largely unknown. The R2R3-MYB transcription factors play important regulatory roles in the biosynthesis of various secondary metabolites. In this study, 101 R2R3-MYB genes in Aquilaria sinensis were systematically identified and analyzed at the genome-wide level. Transcriptomic analysis revealed that 19 R2R3-MYB genes were significantly regulated by an agarwood inducer, and showed significant correlations with PEC accumulation. Expression and evolutionary analyses revealed that AsMYB054, a subgroup 4 R2R3-MYB, was negatively correlated with PEC accumulation. AsMYB054 was located in the nucleus and functioned as a transcriptional repressor. Moreover, AsMYB054 could bind to the promoters of the PEC biosynthesis related genes AsPKS02 and AsPKS09, and inhibit their transcriptional activity. These findings suggested that AsMYB054 functions as a negative regulator of PEC biosynthesis via the inhibition of AsPKS02 and AsPKS09 in A. sinensis. Our results provide a comprehensive understanding of the R2R3-MYB subfamily in A. sinensis and lay a foundation for further functional analyses of R2R3-MYB genes in PEC biosynthesis.
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Affiliation(s)
- Yan Yang
- Key Laboratory of Research and Development of Natural Product from Li Folk Medicine of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163000, China; International Joint Research Center of Agarwood, Haikou 571101, China
| | - Jiahong Zhu
- Key Laboratory of Research and Development of Natural Product from Li Folk Medicine of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China.
| | - Hao Wang
- Key Laboratory of Research and Development of Natural Product from Li Folk Medicine of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; International Joint Research Center of Agarwood, Haikou 571101, China
| | - Dong Guo
- Key Laboratory of Research and Development of Natural Product from Li Folk Medicine of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Ying Wang
- Key Laboratory of Research and Development of Natural Product from Li Folk Medicine of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Wenli Mei
- Key Laboratory of Research and Development of Natural Product from Li Folk Medicine of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; International Joint Research Center of Agarwood, Haikou 571101, China.
| | - Shiqing Peng
- Key Laboratory of Research and Development of Natural Product from Li Folk Medicine of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; International Joint Research Center of Agarwood, Haikou 571101, China.
| | - Haofu Dai
- Key Laboratory of Research and Development of Natural Product from Li Folk Medicine of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163000, China; International Joint Research Center of Agarwood, Haikou 571101, China.
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229
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Zhang Y, Wang D, Li H, Bai H, Sun M, Shi L. Formation mechanism of glandular trichomes involved in the synthesis and storage of terpenoids in lavender. BMC PLANT BIOLOGY 2023; 23:307. [PMID: 37291504 DOI: 10.1186/s12870-023-04275-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 05/09/2023] [Indexed: 06/10/2023]
Abstract
BACKGROUND Lavender (genus Lavandula, family Lamiaceae) is an aromatic plant widely grown as an ornamental plant. The chemical composition of lavender is characterized by monoterpenoids, sesquiterpenoids, and other compounds, which are primarily synthesized and stored in epidermal secretory structures called glandular trichomes (GTs). Volatile organic compounds (VOCs) are responsible for the aroma characteristics of plant oil that drive consumer preference. Aroma is usually regarded as a characteristic trait for the classification of aromatic plants. Interestingly, VOCs are synthesized and stored in GTs. Lamiaceae species such as purple perilla, peppermint, basil, thyme, and oregano usually possess two types of GTs: peltate glandular trichomes (PGTs) and capitate glandular trichomes (CGTs). But the development process of PGTs in lavender has been reported in only a few studies to date. RESULTS In this study, we identified and quantified the VOCs in four lavender cultivars by headspace-solid phase micro extraction-gas chromatography mass spectrometry (HS-SPME-GC-MS). A total of 66 VOCs were identified in these four cultivars, the most prominent of which were linalyl acetate and linalool, and flowers were the main site of accumulation of these VOCs. Here, we examined the developmental process of PGTs, including the formation of their base, body, and apex. The apex cells contained secretory cavities, which produced VOCs. Based on the reference genome sequence of the lavender cultivar 'Jingxun 2', several R2R3-MYB subfamily genes related to GT formation were identified. These results will guide the engineering of GTs and molecular breeding of lavender for improving the VOC content. CONCLUSIONS In this study, we identified the VOCs in four lavender cultivars. We analyzed the formation of GTs, and compared the number and diameter size of PGTs among four lavender cultivars. Additionally, we identified four candidate genes belonging to the R2R3-MYB family.
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Affiliation(s)
- Yanan Zhang
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
- China National Botanical Garden, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Di Wang
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
- China National Botanical Garden, Beijing, 100093, China
| | - Hui Li
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
- China National Botanical Garden, Beijing, 100093, China
| | - Hongtong Bai
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
- China National Botanical Garden, Beijing, 100093, China
| | - Meiyu Sun
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.
- China National Botanical Garden, Beijing, 100093, China.
| | - Lei Shi
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.
- China National Botanical Garden, Beijing, 100093, China.
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230
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Apodiakou A, Hoefgen R. New insights into the regulation of plant metabolism by O-acetylserine: sulfate and beyond. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:3361-3378. [PMID: 37025061 DOI: 10.1093/jxb/erad124] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 04/04/2023] [Indexed: 06/08/2023]
Abstract
Under conditions of sulfur deprivation, O-acetylserine (OAS) accumulates, which leads to the induction of a common set of six genes, called OAS cluster genes. These genes are induced not only under sulfur deprivation, but also under other conditions where OAS accumulates, such as shift to darkness and stress conditions leading to reactive oxygen species (ROS) or methyl-jasmonate accumulation. Using the OAS cluster genes as a query in ATTED-II, a co-expression network is derived stably spanning several hundred conditions. This allowed us not only to describe the downstream function of the OAS cluster genes but also to score for functions of the members of the co-regulated co-expression network and hence the effects of the OAS signal on the sulfate assimilation pathway and co-regulated pathways. Further, we summarized existing knowledge on the regulation of the OAS cluster and the co-expressed genes. We revealed that the known sulfate deprivation-related transcription factor EIL3/SLIM1 exhibits a prominent role, as most genes are subject to regulation by this transcription factor. The role of other transcription factors in response to OAS awaits further investigation.
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Affiliation(s)
- Anastasia Apodiakou
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, D-14476 Potsdam-Golm, Germany
| | - Rainer Hoefgen
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, D-14476 Potsdam-Golm, Germany
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231
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Abdul Aziz M, Masmoudi K. Insights into the Transcriptomics of Crop Wild Relatives to Unravel the Salinity Stress Adaptive Mechanisms. Int J Mol Sci 2023; 24:9813. [PMID: 37372961 DOI: 10.3390/ijms24129813] [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: 04/19/2023] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 06/29/2023] Open
Abstract
The narrow genomic diversity of modern cultivars is a major bottleneck for enhancing the crop's salinity stress tolerance. The close relatives of modern cultivated plants, crop wild relatives (CWRs), can be a promising and sustainable resource to broaden the diversity of crops. Advances in transcriptomic technologies have revealed the untapped genetic diversity of CWRs that represents a practical gene pool for improving the plant's adaptability to salt stress. Thus, the present study emphasizes the transcriptomics of CWRs for salinity stress tolerance. In this review, the impacts of salt stress on the plant's physiological processes and development are overviewed, and the transcription factors (TFs) regulation of salinity stress tolerance is investigated. In addition to the molecular regulation, a brief discussion on the phytomorphological adaptation of plants under saline environments is provided. The study further highlights the availability and use of transcriptomic resources of CWR and their contribution to pangenome construction. Moreover, the utilization of CWRs' genetic resources in the molecular breeding of crops for salinity stress tolerance is explored. Several studies have shown that cytoplasmic components such as calcium and kinases, and ion transporter genes such as Salt Overly Sensitive 1 (SOS1) and High-affinity Potassium Transporters (HKTs) are involved in the signaling of salt stress, and in mediating the distribution of excess Na+ ions within the plant cells. Recent comparative analyses of transcriptomic profiling through RNA sequencing (RNA-Seq) between the crops and their wild relatives have unraveled several TFs, stress-responsive genes, and regulatory proteins for generating salinity stress tolerance. This review specifies that the use of CWRs transcriptomics in combination with modern breeding experimental approaches such as genomic editing, de novo domestication, and speed breeding can accelerate the CWRs utilization in the breeding programs for enhancing the crop's adaptability to saline conditions. The transcriptomic approaches optimize the crop genomes with the accumulation of favorable alleles that will be indispensable for designing salt-resilient crops.
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Affiliation(s)
- Mughair Abdul Aziz
- Integrative Agriculture Department, College of Agriculture and Veterinary Medicine, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Khaled Masmoudi
- Integrative Agriculture Department, College of Agriculture and Veterinary Medicine, United Arab Emirates University, Al Ain 15551, United Arab Emirates
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232
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Zhao Y, Liu G, Yang F, Liang Y, Gao Q, Xiang C, Li X, Yang R, Zhang G, Jiang H, Yu L, Yang S. Multilayered regulation of secondary metabolism in medicinal plants. MOLECULAR HORTICULTURE 2023; 3:11. [PMID: 37789448 PMCID: PMC10514987 DOI: 10.1186/s43897-023-00059-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 04/27/2023] [Indexed: 10/05/2023]
Abstract
Medicinal plants represent a huge reservoir of secondary metabolites (SMs), substances with significant pharmaceutical and industrial potential. However, obtaining secondary metabolites remains a challenge due to their low-yield accumulation in medicinal plants; moreover, these secondary metabolites are produced through tightly coordinated pathways involving many spatiotemporally and environmentally regulated steps. The first regulatory layer involves a complex network of transcription factors; a second, more recently discovered layer of complexity in the regulation of SMs is epigenetic modification, such as DNA methylation, histone modification and small RNA-based mechanisms, which can jointly or separately influence secondary metabolites by regulating gene expression. Here, we summarize the findings in the fields of genetic and epigenetic regulation with a special emphasis on SMs in medicinal plants, providing a new perspective on the multiple layers of regulation of gene expression.
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Affiliation(s)
- 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, 650201, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, 650201, China
| | - Guanze Liu
- 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, 650201, Kunming, China
| | - Feng Yang
- Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing, 210095, 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, 650201, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, 650201, China
| | - Qingqing Gao
- 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, 650201, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, 650201, 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, 650201, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, 650201, China
| | - Xia 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, 650201, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, 650201, China
| | - Run 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, 650201, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, 650201, China
| | - Guanghui Zhang
- 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, 650201, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, 650201, China
| | - Huifeng Jiang
- Key Laboratory of Engineering Biology for Low-Carbon Manufacturing, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.
| | - Lei Yu
- College of Agronomy, Yunnan Urban Agricultural Engineering and Technological Research Center, Kunming University, Kunming, 650214, 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, 650201, Kunming, China.
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233
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Zhao Q. Thermodynamic understanding of flower pigmentation. Biosystems 2023:104938. [PMID: 37277021 DOI: 10.1016/j.biosystems.2023.104938] [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: 03/22/2023] [Revised: 06/02/2023] [Accepted: 06/02/2023] [Indexed: 06/07/2023]
Abstract
We have reviewed and interpreted the thermodynamic principles for flower pigmentation. The basic thoughts are as follows: 1) any biological trait is associated with one thermodynamic system; 2) a thermodynamic system of biology cannot be physically isolated from complex thermal systems of biology but can be separately studied using thermodynamic methods; 3) a thermodynamic system of biology has all types of information, including volume, shape, and structure, unlike the traditional thermal system of gases; 4) a thermodynamic system of biology is associated with one type of biological structure that is not fully fixed but can change its conformation under different conditions; and 5) a thermodynamic system of biology shows a hierarchical structure. On the basis of these principles, several conclusions regarding flower pigmentation are obtained as follows: 1) processes of pigmentation formation can be divided into reversible and irreversible processes; 2) the reversible process is related to quantitative changes in pigments; 3) the irreversible process is related to the formation of stable pigmentation patterns that are physiologically inherited; 4) the spot pattern of color pigmentation represents an independent island of the physiological system; 5) many types of activators and inhibitors are involved in flower pigmentation production; 6) the patterns of flower pigmentation can be modulated; and 7) the evolution mechanism of organogenesis can be separated into several steps of independent thermodynamic processes. Our conclusion is that the thermodynamic system, rather than the dynamic system, is the essential and fundamental attribute of biological behaviors.
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Affiliation(s)
- Qinyi Zhao
- Medical Institute, CRRC, Beijing, PR China.
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234
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Lv J, Xu Y, Dan X, Yang Y, Mao C, Ma X, Zhu J, Sun M, Jin Y, Huang L. Genomic survey of MYB gene family in six pearl millet (Pennisetum glaucum) varieties and their response to abiotic stresses. Genetica 2023:10.1007/s10709-023-00188-8. [PMID: 37266766 DOI: 10.1007/s10709-023-00188-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/16/2023] [Indexed: 06/03/2023]
Abstract
In addition to their roles in developmental and metabolic processes, MYB transcription factors play crucial roles in plant defense mechanisms and stress responses. A comprehensive analysis of six pearl millet genomes revealed the presence of 1133 MYB genes, which can be classified into four phylogenetically distinct subgroups. The duplication pattern of MYB genes across the pearl millet genomes demonstrates their conserved and similar evolutionary history. Overall, MYB genes were observed to be involved in drought and heat stress responses, with stronger differential expressed observed in root tissues. Multiple analyses indicated that MYB genes mediate abiotic stress responses by modulating abscisic acid-related pathways, circadian rhythms, and histone modification processes. A substantial number of duplicated genes were determined to exhibit differential expression under abiotic stress. The consistent positive expression trend observed in duplicated gene pairs, such as PMA5G04432.1 and PMA2G00728.1, across various abiotic stresses suggests that duplicated MYB genes plays a key role in the evolution of adaptive responses of pearl millet to abiotic stresses.
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Affiliation(s)
- Jinhang Lv
- Department of Grassland Science and Technology, Sichuan Agricultural University, Sichuan, China
| | - Yue Xu
- Department of Grassland Science and Technology, Sichuan Agricultural University, Sichuan, China
| | - Xuming Dan
- Department of The College of Life Sciences, Sichuan University, Sichuan, China
| | - Yuchen Yang
- Department of Grassland Science and Technology, Sichuan Agricultural University, Sichuan, China
| | - Chunli Mao
- Department of Grassland Science and Technology, Sichuan Agricultural University, Sichuan, China
| | - Xixi Ma
- Department of Grassland Science and Technology, Sichuan Agricultural University, Sichuan, China
| | - Jie Zhu
- Department of Grassland Science and Technology, Sichuan Agricultural University, Sichuan, China
| | - Min Sun
- Department of Grassland Science and Technology, Sichuan Agricultural University, Sichuan, China
| | - Yarong Jin
- Department of Grassland Science and Technology, Sichuan Agricultural University, Sichuan, China
| | - Linkai Huang
- Department of Grassland Science and Technology, Sichuan Agricultural University, Sichuan, China.
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235
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Zhu J, Wang Y, Wang Q, Li B, Wang X, Zhou X, Zhang H, Xu W, Li S, Wang L. The combination of DNA methylation and positive regulation of anthocyanin biosynthesis by MYB and bHLH transcription factors contributes to the petal blotch formation in Xibei tree peony. HORTICULTURE RESEARCH 2023; 10:uhad100. [PMID: 37427034 PMCID: PMC10327543 DOI: 10.1093/hr/uhad100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 05/05/2023] [Indexed: 07/11/2023]
Abstract
Xibei tree peony is a distinctive cultivar group that features red-purple blotches in petals. Interestingly, the pigmentations of blotches and non-blotches are largely independent of one another. The underlying molecular mechanism had attracted lots of attention from investigators, but was still uncertain. Our present work demonstrates the factors that are closely related to blotch formation in Paeonia rockii 'Shu Sheng Peng Mo'. Non-blotch pigmentation is prevented by the silencing of anthocyanin structural genes, among which PrF3H, PrDFR, and PrANS are the three major genes. We characterized two R2R3-MYBs as the key transcription factors that control the early and late anthocyanin biosynthetic pathways. PrMYBa1, which belongs to MYB subgroup 7 (SG7) was found to activate the early biosynthetic gene (EBG) PrF3H by interacting with SG5 member PrMYBa2 to form an 'MM' complex. The SG6 member PrMYBa3 interacts with two SG5 (IIIf) bHLHs to synergistically activate the late biosynthetic genes (LBGs) PrDFR and PrANS, which is essential for anthocyanin accumulation in petal blotches. The comparison of methylation levels of the PrANS and PrF3H promoters between blotch and non-blotch indicated a correlation between hypermethylation and gene silencing. The methylation dynamics of PrANS promoter during flower development revealed a potential early demethylating reaction, which may have contributed to the particular expression of PrANS solely in the blotch area. We suggest that the formation of petal blotch may be highly associated with the cooperation of transcriptional activation and DNA methylation of structural gene promoters.
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Affiliation(s)
- Jin Zhu
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yizhou Wang
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qianyu Wang
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bing Li
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaohan Wang
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xian Zhou
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hechen Zhang
- Horticulture Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Wenzhong Xu
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shanshan Li
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liangsheng Wang
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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236
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Zheng P, Cao L, Zhang C, Fang X, Wang L, Miao M, Tang X, Liu Y, Cao S. The transcription factor MYB43 antagonizes with ICE1 to regulate freezing tolerance in Arabidopsis. THE NEW PHYTOLOGIST 2023; 238:2440-2459. [PMID: 36922399 DOI: 10.1111/nph.18882] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 03/08/2023] [Indexed: 05/19/2023]
Abstract
Previous discovering meticulously illustrates the post-translational modifications and protein stability regulation of ICE1 and their role in cold stress. However, the studies on the interaction of ICE1 with other transcription factors, and their function in modulation cold stress tolerance, as well as in the transition between cold stress and growth are largely insufficient. In this work, we found that maltose binding protein (MBP) 43 directly binds to the promoters of CBF genes to repress their expression, thereby negatively regulating freezing tolerance. Biochemical and genetic analyses showed that MYB43 interacts and antagonizes with ICE1 to regulate the expression of CBF genes and plant's freezing stress tolerance. PLEIOTROPIC REGULATORY LOCUS 1 (PRL1) accumulates under cold stress and promotes MYB43 protein degradation; however, when cold stress disappears, PRL1 restores normal protein levels, causing MYB43 protein to re-accumulate to normal levels. Furthermore, PRL1 positively regulates freezing tolerance by promoting degradation of MYB43 to attenuate its repression of CBF genes and antagonism with ICE1. Thus, our study reveals that MYB43 inhibits CBF genes expression under normal growth condition, while PRL1 promotes MYB43 protein degradation to attenuate its repression of CBF genes and antagonism with ICE1, and thereby to the precise modulation of plant cold stress responses.
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Affiliation(s)
- Pengpeng Zheng
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
| | - Lei Cao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
| | - Cheng Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
| | - Xue Fang
- School of Horticulture, Anhui Agricultural University, Hefei, Anhui, 230036, China
| | - Lihuan Wang
- School of Horticulture, Anhui Agricultural University, Hefei, Anhui, 230036, China
| | - Min Miao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
| | - Xiaofeng Tang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
| | - Yongsheng Liu
- School of Horticulture, Anhui Agricultural University, Hefei, Anhui, 230036, China
| | - Shuqing Cao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
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237
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Jiang L, Yue M, Liu Y, Zhang N, Lin Y, Zhang Y, Wang Y, Li M, Luo Y, Zhang Y, Wang X, Chen Q, Tang H. A novel R2R3-MYB transcription factor FaMYB5 positively regulates anthocyanin and proanthocyanidin biosynthesis in cultivated strawberries (Fragaria × ananassa). PLANT BIOTECHNOLOGY JOURNAL 2023; 21:1140-1158. [PMID: 36752420 DOI: 10.1111/pbi.14024] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/16/2022] [Accepted: 01/28/2023] [Indexed: 05/27/2023]
Abstract
Flavonoids have a major contribution to the fruit quality in cultivated strawberries and are regulated by MYB, bHLH and WD40 transcriptional factors. We reported here the identification of the FaMYB5, an R2R3-MYB transcription factor, which positively regulated the accumulation of anthocyanins and proanthocyanidins through the trans-activation of the F3'H and LAR. The strawberry FaEGL3 and FaLWD1/FaLWD1-like interact with the R2R3-FaMYB5 to form an MYB-bHLH-WD40 complex (MBW), enhancing the regulatory efficiency. The R2R3-FaMYB5 was constitutively expressed in various tissues and in fruits of different developmental stages, which was strikingly contrasting to the fruit-specific expression patterns of FaMYB10. Meanwhile, R2R3-FaMYB5 failed to promote a stable accumulation of anthocyanin glycosides in the mature fruits of the myb10 mutant, mainly due to the suppressed expression of TT19. The R2R3-FaMYB5 was regulated by an antisense long noncoding RNA lncRNA-myb5. Additionally, the R2R3-FaMYB5 protein could interact with FaBT2 and was degraded through the ubiquitin/26 S proteasome pathway. Transcriptome and metabolome data showed that R2R3-FaMYB5 enhanced the gene expression and the metabolite accumulation involved in the flavonoid, phenylpropanoid and lignin biosynthesis pathways. Collectively, we conclude that the FaMYB5 is an R2R3-MYB activator involved in the composition of MBW, which positively regulates the biosynthesis of anthocyanin and proanthocyanidin. These findings provided new insights into the molecular mechanisms that regulate flavonoids in strawberry fruits.
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Affiliation(s)
- Leiyu Jiang
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Maolan Yue
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yongqiang Liu
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Nating Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yuanxiu Lin
- Institute of Pomology & Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yunting Zhang
- Institute of Pomology & Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yan Wang
- Institute of Pomology & Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Mengyao Li
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Ya Luo
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yong Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Xiaorong Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Institute of Pomology & Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Qing Chen
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Haoru Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Institute of Pomology & Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
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238
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Liu W, Chen G, He M, Wu J, Wen W, Gu Q, Guo S, Wang Y, Sun J. ABI5 promotes heat stress-induced chlorophyll degradation by modulating the stability of MYB44 in cucumber. HORTICULTURE RESEARCH 2023; 10:uhad089. [PMID: 37334179 PMCID: PMC10273075 DOI: 10.1093/hr/uhad089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 04/27/2023] [Indexed: 06/20/2023]
Abstract
The yellowing of leaves caused by the decomposition of chlorophyll (Chl) is a characteristic event during senescence, which can be induced by various environmental stresses. However, the molecular mechanisms of high temperature-induced Chl degradation in horticultural plants remain poorly understood. Here, we found that heat stress induced Chl degradation and the expression of ABI5 and MYB44 in cucumber. Silencing of ABI5 compromised heat stress-induced Chl degradation, and the transcription of pheophytinase (PPH) and pheophorbide a oxygenase (PAO), two key genes in Chl catabolic pathway, but silencing of MYB44 exhibited the opposite results. Furthermore, ABI5 interacted with MYB44 in vitro and in vivo. ABI5 positively regulated heat stress-induced Chl degradation through two pathways. ABI5 directly bound to PPH and PAO promoters to promote their expression, leading to accelerating Chl degradation. On the other hand, the interaction between ABI5 and MYB44 reduced the binding of MYB44 to PPH and PAO promoters and led to the ubiquitination-depended protein degradation of MYB44, thereby alleviating the transcription inhibitory effect of MYB44 on PPH and PAO. Taken together, our findings propose a new regulatory network for ABI5 in regulating heat stress-induced Chl degradation.
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Affiliation(s)
- Weikang Liu
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Guangling Chen
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Mingming He
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Jianqiang Wu
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Wenxu Wen
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Qinsheng Gu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Shirong Guo
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Yu Wang
- Corresponding authors: E-mails: ;
| | - Jin Sun
- Corresponding authors: E-mails: ;
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Gao G, Yang F, Wang C, Duan X, Li M, Ma Y, Wang F, Qi H. The transcription factor CmERFI-2 represses CmMYB44 expression to increase sucrose levels in oriental melon fruit. PLANT PHYSIOLOGY 2023; 192:1378-1395. [PMID: 36938625 PMCID: PMC10231561 DOI: 10.1093/plphys/kiad155] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 11/29/2022] [Accepted: 11/29/2022] [Indexed: 06/01/2023]
Abstract
Soluble sugar accumulation in fruit ripening determines fleshy fruit quality. However, the molecular mechanism for this process is not yet understood. Here, we showed a transcriptional repressor, CmMYB44 regulates sucrose accumulation and ethylene synthesis in oriental melon (Cucumis. melo var. makuwa Makino) fruit. Overexpressing CmMYB44 suppressed sucrose accumulation and ethylene production. Furthermore, CmMYB44 repressed the transcriptional activation of CmSPS1 (sucrose phosphate synthase 1) and CmACO1 (ACC oxidase 1), two key genes in sucrose and ethylene accumulation, respectively. During the later stages of fruit ripening, the repressive effect of CmMYB44 on CmSPS1 and CmACO1 could be released by overexpressing CmERFI-2 (ethylene response factor I-2) and exogenous ethylene in "HS" fruit (high sucrose accumulation fruit). CmERFI-2 acted upstream of CmMYB44 as a repressor by directly binding the CmMYB44 promoter region, indirectly stimulating the expression level of CmSPS1 and CmACO1. Taken together, we provided a molecular regulatory pathway mediated by CmMYB44, which determines the degree of sucrose and ethylene accumulation in oriental melon fruit and sheds light on transcriptional responses triggered by ethylene sensing that enable the process of fruit ripening.
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Affiliation(s)
- Ge Gao
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture of Education of Ministry and Liaoning Province/National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology, Shenyang 110866, China
| | - Fan Yang
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture of Education of Ministry and Liaoning Province/National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology, Shenyang 110866, China
| | - Cheng Wang
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture of Education of Ministry and Liaoning Province/National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology, Shenyang 110866, China
| | - Xiaoyu Duan
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture of Education of Ministry and Liaoning Province/National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology, Shenyang 110866, China
| | - Meng Li
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture of Education of Ministry and Liaoning Province/National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology, Shenyang 110866, China
| | - Yue Ma
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Feng Wang
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
| | - Hongyan Qi
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture of Education of Ministry and Liaoning Province/National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology, Shenyang 110866, China
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240
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Leng L, Zhang X, Liu W, Wu Z. Genome-Wide Identification of the MYB and bHLH Families in Carnations and Expression Analysis at Different Floral Development Stages. Int J Mol Sci 2023; 24:ijms24119499. [PMID: 37298450 DOI: 10.3390/ijms24119499] [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: 05/06/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
Carnations are one of the most popular ornamental flowers in the world with varied flower colors that have long attracted breeders and consumers alike. The differences in carnation flower color are mainly the result of the accumulation of flavonoid compounds in the petals. Anthocyanins are a type of flavonoid compound that produce richer colors. The expression of anthocyanin biosynthetic genes is mainly regulated by MYB and bHLH transcription factors. However, these TFs have not been comprehensively reported in popular carnation cultivars. Herein, 106 MYB and 125 bHLH genes were identified in the carnation genome. Gene structure and protein motif analyses show that members of the same subgroup have similar exon/intron and motif organization. Phylogenetic analysis combining the MYB and bHLH TFs from Arabidopsis thaliana separates the carnation DcaMYBs and DcabHLHs into 20 subgroups each. Gene expression (RNAseq) and phylogenetic analysis shows that DcaMYB13 in subgroup S4 and DcabHLH125 in subgroup IIIf have similar expression patterns to those of DFR, ANS, and GT/AT, which regulate anthocyanin accumulation, in the coloring of carnations, and in red-flowered and white-flowered carnations, DcaMYB13 and DcabHLH125 are likely the key genes responsible for the formation of red petals in carnations. These results lay a foundation for the study of MYB and bHLH TFs in carnations and provide valuable information for the functional verification of these genes in studies of tissue-specific regulation of anthocyanin biosynthesis.
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Affiliation(s)
- Luhong Leng
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
- Kunpeng Institute of Modern Agriculture at Foshan, Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
| | - Xiaoni Zhang
- Kunpeng Institute of Modern Agriculture at Foshan, Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
| | - Weichao Liu
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
- Key Laboratory of Horticultural Plant Biology, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhiqiang Wu
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
- Kunpeng Institute of Modern Agriculture at Foshan, Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
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241
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Qiao Y, Wu L, Yang S, Wang Q, Gu H, Wei L, Liu G, Zhou S, Wang P, Song M. Metabolomic and transcriptomic analyses provide insights into variations in flavonoids contents between two Artemisia cultivars. BMC PLANT BIOLOGY 2023; 23:288. [PMID: 37254042 DOI: 10.1186/s12870-023-04295-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 05/18/2023] [Indexed: 06/01/2023]
Abstract
BACKGROUND Plants in the genus Artemisia are rich in active ingredients and specialized metabolites. Many of these compounds, especially flavonoids, have potential medicinal and nutritional applications, and are of growing interest to scientists due to their wide range of pharmacological and biological activities. Artemisia cultivars are commonly used as raw materials for medicine, food, and moxibustion in China. However, most of the metabolites produced by Artemisia species have not been identified, and few studies have addressed differences in active compounds between species and cultivars. RESULTS We here investigated two Artemisia cultivars, 'Nanyangshiyong' (NYSY) and 'Nanyangyaoyong' (NYYY), which are commonly used in foods and moxibustion, respectively. NYSY and NYYY were confirmed to be Artemisia argyi cultivars. Total flavonoids contents and antioxidant activities were higher in NYYY than in NYSY. A total of 882 metabolites were identified in the samples; most of the potentially medicinally active compounds, especially flavonoids (e.g., flavone, flavonol, isoflavone, and anthocyanin), were up-regulated in NYYY compared to NYSY. Furthermore, most of the genes related to flavonoids biosynthesis were up-regulated in NYYY. Correlation analysis was used to identify putative members of transcription factor families that may regulate genes encoding key flavonoids biosynthesis enzymes. CONCLUSIONS We found that the antioxidant activities and flavonoids contents significantly varied between two Artemisia cultivars of the same species. We also uncovered metabolomic and transcriptomic evidence of the molecular phenomena underlying those differences in flavonoids contents between the two Artemisia cultivars. This study provides a wealth of data for future utilization and improvements of Artemisia cultivars, and highlights a need to study the specific metabolite profiles of plants that are used in foods and medicines.
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Affiliation(s)
- Yuchen Qiao
- Institute of Radiation Technology, Beijing Academy of Science and Technology, Beijing, China
| | - Liqin Wu
- Institute of Radiation Technology, Beijing Academy of Science and Technology, Beijing, China
| | - Suling Yang
- Institute of Radiation Technology, Beijing Academy of Science and Technology, Beijing, China
| | - Qing Wang
- Institute of Radiation Technology, Beijing Academy of Science and Technology, Beijing, China
| | - Haike Gu
- Institute of Radiation Technology, Beijing Academy of Science and Technology, Beijing, China
| | - Liqin Wei
- Beijing Science and Technology Innovation Promotion Center, Beijing, China
| | - Guijun Liu
- Institute of Radiation Technology, Beijing Academy of Science and Technology, Beijing, China
| | - Sijing Zhou
- Institute of Radiation Technology, Beijing Academy of Science and Technology, Beijing, China
| | - Ping Wang
- Institute of Radiation Technology, Beijing Academy of Science and Technology, Beijing, China
| | - Meifang Song
- Institute of Radiation Technology, Beijing Academy of Science and Technology, Beijing, China.
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242
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Luo D, Raza A, Cheng Y, Zou X, Lv Y. Cloning and Functional Characterization of Cold-Inducible MYB-like 17 Transcription Factor in Rapeseed ( Brassica napus L.). Int J Mol Sci 2023; 24:ijms24119514. [PMID: 37298461 DOI: 10.3390/ijms24119514] [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: 05/13/2023] [Revised: 05/27/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
Rapeseed (Brassica napus L.) is an important crop for edible oil, vegetables, and biofuel. Rapeseed growth and development require a minimum temperature of ~1-3 °C. Notably, frost damage occurs during overwintering, posing a serious threat to the productivity and yield of rapeseed. MYB proteins are important transcription factors (TFs) in plants, and have been proven to be involved in the regulation of stress responses. However, the roles of the MYB TFs in rapeseed under cold stress conditions are yet to be fully elucidated. To better understand the molecular mechanisms of one MYB-like 17 gene, BnaMYBL17, in response to low temperature, the present study found that the transcript level of BnaMYBL17 is induced by cold stress. To characterize the gene's function, the 591 bp coding sequence (CDS) from rapeseed was isolated and stably transformed into rapeseed. The further functional analysis revealed significant sensitivity in BnaMYBL17 overexpression lines (BnaMYBL17-OE) after freezing stress, suggesting its involvement in freezing response. A total of 14,298 differentially expressed genes relative to freezing response were found based on transcriptomic analysis of BnaMYBL17-OE. Overall, 1321 candidate target genes were identified based on differential expression, including Phospholipases C1 (PLC1), FCS-like zinc finger 8 (FLZ8), and Kinase on the inside (KOIN). The qPCR results confirmed that the expression levels of certain genes showed fold changes ranging from two to six when compared between BnaMYBL17-OE and WT lines after exposure to freezing stress. Furthermore, verification indicated that BnaMYBL17 affects the promoter of BnaPLC1, BnaFLZ8, and BnaKOIN genes. In summary, the results suggest that BnaMYBL17 acts as a transcriptional repressor in regulating certain genes related to growth and development during freezing stress. These findings provide valuable genetic and theoretical targets for molecular breeding to enhance freezing tolerance in rapeseed.
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Affiliation(s)
- Dan Luo
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Ministry of Agriculture, Wuhan 430062, China
| | - Ali Raza
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Ministry of Agriculture, Wuhan 430062, China
| | - Yong Cheng
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Ministry of Agriculture, Wuhan 430062, China
| | - Xiling Zou
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Ministry of Agriculture, Wuhan 430062, China
| | - Yan Lv
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Ministry of Agriculture, Wuhan 430062, China
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Ni J, Wang S, Yu W, Liao Y, Pan C, Zhang M, Tao R, Wei J, Gao Y, Wang D, Bai S, Teng Y. The ethylene-responsive transcription factor PpERF9 represses PpRAP2.4 and PpMYB114 via histone deacetylation to inhibit anthocyanin biosynthesis in pear. THE PLANT CELL 2023; 35:2271-2292. [PMID: 36916511 DOI: 10.1093/plcell/koad077] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/09/2023] [Accepted: 02/13/2023] [Indexed: 05/30/2023]
Abstract
Ethylene induces anthocyanin biosynthesis in most fruits, including apple (Malus domestica) and plum (Prunus spp.). By contrast, ethylene inhibits anthocyanin biosynthesis in pear (Pyrus spp.), but the underlying molecular mechanism remains unclear. In this study, we identified and characterized an ethylene-induced ETHYLENE RESPONSE FACTOR (ERF) transcription factor, PpETHYLENE RESPONSE FACTOR9 (PpERF9), which functions as a transcriptional repressor. Our analyses indicated PpERF9 can directly inhibit expression of the MYB transcription factor gene PpMYB114 by binding to its promoter. Additionally, PpERF9 inhibits the expression of the transcription factor gene PpRELATED TO APETALA2.4 (PpRAP2.4), which activates PpMYB114 expression, by binding to its promoter, thus forming a PpERF9-PpRAP2.4-PpMYB114 regulatory circuit. Furthermore, PpERF9 interacts with the co-repressor PpTOPLESS1 (PpTPL1) via EAR motifs to form a complex that removes the acetyl group on histone H3 and maintains low levels of acetylated H3 in the PpMYB114 and PpRAP2.4 promoter regions. The resulting suppressed expression of these 2 genes leads to decreased anthocyanin biosynthesis in pear. Collectively, these results indicate that ethylene inhibits anthocyanin biosynthesis by a mechanism that involves PpERF9-PpTPL1 complex-mediated histone deacetylation of PpMYB114 and PpRAP2.4. The data presented herein will be useful for clarifying the relationship between chromatin status and hormone signaling, with implications for plant biology research.
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Affiliation(s)
- Junbei Ni
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, People's Republic of China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou 310058, People's Republic of China
| | - Simai Wang
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, People's Republic of China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou 310058, People's Republic of China
| | - Wenjie Yu
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, People's Republic of China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou 310058, People's Republic of China
| | - Yifei Liao
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, People's Republic of China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou 310058, People's Republic of China
- Hainan Institute of Zhejiang University, Sanya 572000, People's Republic of China
| | - Chen Pan
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, People's Republic of China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou 310058, People's Republic of China
- Hainan Institute of Zhejiang University, Sanya 572000, People's Republic of China
| | - Manman Zhang
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, People's Republic of China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou 310058, People's Republic of China
- Hainan Institute of Zhejiang University, Sanya 572000, People's Republic of China
| | - Ruiyan Tao
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, People's Republic of China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou 310058, People's Republic of China
| | - Jia Wei
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, People's Republic of China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou 310058, People's Republic of China
| | - Yuhao Gao
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, People's Republic of China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou 310058, People's Republic of China
| | - Dongsheng Wang
- Institute of Horticulture, Henan Academy of Agricultural Sciences, Zhengzhou 450002, People's Republic of China
| | - Songling Bai
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, People's Republic of China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou 310058, People's Republic of China
| | - Yuanwen Teng
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, People's Republic of China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou 310058, People's Republic of China
- Hainan Institute of Zhejiang University, Sanya 572000, People's Republic of China
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Wang X, Zhao S, Zhou R, Liu Y, Guo L, Hu H. Identification of Vitis vinifera MYB transcription factors and their response against grapevine berry inner necrosis virus. BMC PLANT BIOLOGY 2023; 23:279. [PMID: 37231351 DOI: 10.1186/s12870-023-04296-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 05/18/2023] [Indexed: 05/27/2023]
Abstract
BACKGROUND The myeloblastosis (MYB) superfamily is the largest transcription factor family in plants that play diverse roles during stress responses. However, the biotic stress-responsive MYB transcription factors of the grapevine have not been systematically studied. In China, grapevine berries are often infected with the grapevine berry inner necrosis virus (GINV), which eventually reduces the nutritional quality and commodity value. RESULTS The present study identified and characterized 265 VvMYB or VvMYB-related genes of the "Crimson seedless" grapevine. Based on DNA-binding domain analysis, these VvMYB proteins were classified into four subfamilies, including MYB-related, 2R-MYB, 3R-MYB, and 4R-MYB. Phylogenetic analysis divided the MYB transcription factors into 26 subgroups. Overexpression of VvMYB58 suppressed GINV abundance in the grapevine. Further qPCR indicated that among 41 randomly selected VvMYB genes, 12 were induced during GINV infection, while 28 were downregulated. These findings suggest that VvMYB genes actively regulate defense response in the grapevine. CONCLUSION A deeper understanding of the MYB TFs engaged in GINV defense response will help devise better management strategies. The present study also provides a foundation for further research on the functions of the MYB transcription factors.
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Affiliation(s)
- Xianyou Wang
- School of Horticulture Landscape Architecture, Henan Institute of Science and Technology, Henan, 453003, P. R. China.
- Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement, Xinxiang, China.
| | - Shanshan Zhao
- School of Food Science, Henan Institute of Science and Technology, Henan, 453003, P. R. China
| | - Ruijin Zhou
- School of Horticulture Landscape Architecture, Henan Institute of Science and Technology, Henan, 453003, P. R. China
- Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement, Xinxiang, China
| | - Yunli Liu
- School of Horticulture Landscape Architecture, Henan Institute of Science and Technology, Henan, 453003, P. R. China
- Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement, Xinxiang, China
| | - Longlong Guo
- School of Horticulture Landscape Architecture, Henan Institute of Science and Technology, Henan, 453003, P. R. China
- Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement, Xinxiang, China
| | - Huiling Hu
- School of Horticulture Landscape Architecture, Henan Institute of Science and Technology, Henan, 453003, P. R. China
- Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement, Xinxiang, China
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Huang G, Wu W, Chen Y, Zhi X, Zou P, Ning Z, Fan Q, Liu Y, Deng S, Zeng K, Zhou R. Balancing selection on an MYB transcription factor maintains the twig trichome color variation in Melastoma normale. BMC Biol 2023; 21:122. [PMID: 37226197 DOI: 10.1186/s12915-023-01611-4] [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: 08/01/2022] [Accepted: 05/03/2023] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND The factors that maintain phenotypic and genetic variation within a population have received long-term attention in evolutionary biology. Here the genetic basis and evolution of the geographically widespread variation in twig trichome color (from red to white) in a shrub Melastoma normale was investigated using Pool-seq and evolutionary analyses. RESULTS The results show that the twig trichome coloration is under selection in different light environments and that a 6-kb region containing an R2R3 MYB transcription factor gene is the major region of divergence between the extreme red and white morphs. This gene has two highly divergent groups of alleles, one of which likely originated from introgression from another species in this genus and has risen to high frequency (> 0.6) within each of the three populations under investigation. In contrast, polymorphisms in other regions of the genome show no sign of differentiation between the two morphs, suggesting that genomic patterns of diversity have been shaped by homogenizing gene flow. Population genetics analysis reveals signals of balancing selection acting on this gene, and it is suggested that spatially varying selection is the most likely mechanism of balancing selection in this case. CONCLUSIONS This study demonstrate that polymorphisms on a single transcription factor gene largely confer the twig trichome color variation in M. normale, while also explaining how adaptive divergence can occur and be maintained in the face of gene flow.
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Affiliation(s)
- Guilian Huang
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Wei Wu
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Yongmei Chen
- College of Chemical Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan, 643000, China
| | - Xueke Zhi
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Peishan Zou
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Zulin Ning
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Qiang Fan
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Ying Liu
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Shulin Deng
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Kai Zeng
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK.
| | - Renchao Zhou
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China.
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Liu Y, Wang M, Huang Y, Zhu P, Qian G, Zhang Y, Li L. Genome-Wide Identification and Analysis of R2R3-MYB Genes Response to Saline-Alkali Stress in Quinoa. Int J Mol Sci 2023; 24:ijms24119132. [PMID: 37298082 DOI: 10.3390/ijms24119132] [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: 04/20/2023] [Revised: 05/17/2023] [Accepted: 05/19/2023] [Indexed: 06/12/2023] Open
Abstract
Soil saline-alkalization inhibits plant growth and development and seriously affects crop yields. Over their long-term evolution, plants have formed complex stress response systems to maintain species continuity. R2R3-MYB transcription factors are one of the largest transcription factor families in plants, widely involved in plant growth and development, metabolism, and stress response. Quinoa (Chenopodium quinoa Willd.), as a crop with high nutritional value, is tolerant to various biotic and abiotic stress. In this study, we identified 65 R2R3-MYB genes in quinoa, which are divided into 26 subfamilies. In addition, we analyzed the evolutionary relationships, protein physicochemical properties, conserved domains and motifs, gene structure, and cis-regulatory elements of CqR2R3-MYB family members. To investigate the roles of CqR2R3-MYB transcription factors in abiotic stress response, we performed transcriptome analysis to figure out the expression file of CqR2R3-MYB genes under saline-alkali stress. The results indicate that the expression of the six CqMYB2R genes was altered significantly in quinoa leaves that had undergone saline-alkali stress. Subcellular localization and transcriptional activation activity analysis revealed that CqMYB2R09, CqMYB2R16, CqMYB2R25, and CqMYB2R62, whose Arabidopsis homologues are involved in salt stress response, are localized in the nucleus and exhibit transcriptional activation activity. Our study provides basic information and effective clues for further functional investigation of CqR2R3-MYB transcription factors in quinoa.
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Affiliation(s)
- Yuqi Liu
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Mingyu Wang
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Yongshun Huang
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Peng Zhu
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Guangtao Qian
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Yiming Zhang
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Lixin Li
- 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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247
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Sukumaran S, Lethin J, Liu X, Pelc J, Zeng P, Hassan S, Aronsson H. Genome-Wide Analysis of MYB Transcription Factors in the Wheat Genome and Their Roles in Salt Stress Response. Cells 2023; 12:1431. [PMID: 37408265 DOI: 10.3390/cells12101431] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/26/2023] [Accepted: 05/03/2023] [Indexed: 07/07/2023] Open
Abstract
Large and rapidly increasing areas of salt-affected soils are posing major challenges for the agricultural sector. Most fields used for the important food crop Triticum aestivum (wheat) are expected to be salt-affected within 50 years. To counter the associated problems, it is essential to understand the molecular mechanisms involved in salt stress responses and tolerance, thereby enabling their exploitation in the development of salt-tolerant varieties. The myeloblastosis (MYB) family of transcription factors are key regulators of responses to both biotic and abiotic stress, including salt stress. Thus, we used the Chinese spring wheat genome assembled by the International Wheat Genome Sequencing Consortium to identify putative MYB proteins (719 in total). Protein families (PFAM) analysis of the MYB sequences identified 28 combinations of 16 domains in the encoded proteins. The most common consisted of MYB_DNA-binding and MYB-DNA-bind_6 domains, and five highly conserved tryptophans were located in the aligned MYB protein sequence. Interestingly, we found and characterized a novel 5R-MYB group in the wheat genome. In silico studies showed that MYB transcription factors MYB3, MYB4, MYB13 and MYB59 are involved in salt stress responses. qPCR analysis confirmed upregulation of the expression of all these MYBs in both roots and shoots of the wheat variety BARI Gom-25 (except MYB4, which was downregulated in roots) under salt stress. Moreover, we identified nine target genes involved in salt stress that are regulated by the four MYB proteins, most of which have cellular locations and are involved in catalytic and binding activities associated with various cellular and metabolic processes.
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Affiliation(s)
- Selvakumar Sukumaran
- Department of Biological and Environment Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Johanna Lethin
- Department of Biological and Environment Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Xin Liu
- Department of Biological and Environment Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang 611130, China
| | - Justyna Pelc
- Department of Biological and Environment Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden
- Department of Bioengineering, Faculty of Environmental Management and Agriculture, West Pomeranian University of Technology, 71-434 Szczecin, Poland
| | - Peng Zeng
- Department of Biological and Environment Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210014, China
| | - Sameer Hassan
- Department of Biological and Environment Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden
- OlsAro Crop Biotech AB, Erik Dahlbergsgatan 11A, 41126 Gothenburg, Sweden
| | - Henrik Aronsson
- Department of Biological and Environment Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden
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248
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Zhu L, Hu J, Li R, Liu C, Jiang Y, Liu T, Liu M, Zhao M, Wang Y, Wang K, Zhang M. Transcriptome-Wide Integrated Analysis of the PgGT25-04 Gene in Controlling Ginsenoside Biosynthesis in Panax ginseng. PLANTS (BASEL, SWITZERLAND) 2023; 12:1980. [PMID: 37653897 PMCID: PMC10224475 DOI: 10.3390/plants12101980] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/10/2023] [Accepted: 05/10/2023] [Indexed: 08/13/2023]
Abstract
Panax ginseng is a valuable medicinal herb of the Araliaceae family with various pharmacological activities. The Trihelix transcription factors family is involved in growth and secondary metabolic processes in plants, but no studies have been reported on the involvement of Trihelix genes in secondary metabolic processes in ginseng. In this study, weighted co-expression network analysis, correlation analysis between PgGTs and ginsenosides and key enzyme genes, and interaction network analysis between PgGTs and key enzyme genes were used to screen out the PgGT25-04 gene, which was negatively correlated with ginsenoside synthesis. Using ABA treatment of ginseng hair roots, PgGT genes were found to respond to ABA signals. Analysis of the sequence characteristics and expression pattern of the PgGT25-04 gene in ginseng revealed that its expression is spatiotemporally specific. The interfering vector pBI121-PgGT25-04 containing the PgGT25-04 gene was constructed, and the ginseng adventitious roots were transformed using the Agrobacterium-mediated method to obtain the pBI121-PgGT25-04 positive hairy root monocot line. The saponin contents of positive ginseng hair roots were measured by HPLC, and the changes in PgGT25-04 and key enzyme genes in positive ginseng hair roots were detected via fluorescence quantitative RT-PCR. These results preliminarily identified the role of the PgGT25-04 gene in the secondary metabolism of ginseng in Jilin to provide a theoretical basis for the study of Trihelix transcription factors in Panax ginseng.
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Affiliation(s)
- Lei Zhu
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
| | - Jian Hu
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
| | - Ruiqi Li
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
| | - Chang Liu
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
| | - Yang Jiang
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
| | - Tao Liu
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
| | - Mingming Liu
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
| | - Mingzhu Zhao
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun 130118, China
| | - Yi Wang
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun 130118, China
| | - Kangyu Wang
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun 130118, China
| | - Meiping Zhang
- College of Life Science, Jilin Agricultural University, Changchun 130118, China; (L.Z.); (J.H.); (R.L.); (C.L.); (Y.J.); (T.L.); (M.L.); (M.Z.); (Y.W.)
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun 130118, China
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Ferrari M, Muto A, Bruno L, Muzzalupo I, Chiappetta A. Modulation of Anthocyanin Biosynthesis-Related Genes during the Ripening of Olea europaea L. cvs Carolea and Tondina Drupes in Relation to Environmental Factors. Int J Mol Sci 2023; 24:ijms24108770. [PMID: 37240115 DOI: 10.3390/ijms24108770] [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: 04/28/2023] [Revised: 05/11/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
Anthocyanins protect plants against various biotic and abiotic stresses, and anthocyanin-rich foods exert benefits on human health due to their antioxidant activity. Nevertheless, little information is available on the influence of genetic and environmental factors on the anthocyanin content in olive fruits. Based on this consideration, the total anthocyanin content, the genes involved in anthocyanin biosynthesis, and three putative R2R3-MYB transcription factors were evaluated at different ripening stages in the drupes of the Carolea and Tondina cultivars, sampled at different altitudes in the Calabria region, Italy. During drupe ripening, the total anthocyanin content and the transcript levels of analyzed genes gradually increased. In line with the anthocyanin content, a different level of expression of anthocyanin structural genes was observed in 'Carolea' compared to 'Tondina', and in relation to the cultivation area. Furthermore, we identified Oeu050989.1 as a putative R2R3-MYB involved in the regulation of anthocyanin structural genes correlated with the environmental temperature change response. We conclude that anthocyanin accumulation is strongly regulated by development, genotype, and also by environmental factors such as temperature, associated with the altitude gradient. The obtained results contribute to reducing the current information gap regarding the molecular mechanisms on anthocyanin biosynthesis regulation related to the environmental conditions in Olea europaea.
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Affiliation(s)
- Michele Ferrari
- Department of Biology, Ecology, and Earth Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Antonella Muto
- Department of Biology, Ecology, and Earth Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Leonardo Bruno
- Department of Biology, Ecology, and Earth Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Innocenzo Muzzalupo
- CREA-Council for Agricultural Research and Agricultural Economy Analysis, Forestry and Wood Research Center, 87036 Rende, Italy
| | - Adriana Chiappetta
- Department of Biology, Ecology, and Earth Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy
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Li M, Wu X, Wang B, Wu X, Wang Y, Wang J, Dong J, Wu J, Lu Z, Sun Y, Dong W, Yang J, Li G. Genome-wide association analysis reveals the optimal genomic regions for pod size in bean. FRONTIERS IN PLANT SCIENCE 2023; 14:1138988. [PMID: 37251758 PMCID: PMC10213521 DOI: 10.3389/fpls.2023.1138988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 03/28/2023] [Indexed: 05/31/2023]
Abstract
The snap bean is the most commonly grown vegetable legume worldwide, and its pod size is both an important yield and appearance quality trait. However, the improvement of pod size in snap beans grown in China has been largely hindered by a lack of information on the specific genes that determine pod size. In this study, we identified 88 snap bean accessions and evaluated their pod size traits. Through a genome-wide association study (GWAS), 57 single nucleotide polymorphisms (SNPs) significantly associated with pod size were detected. Candidate gene analysis showed that cytochrome P450 family genes, WRKY, and MYB transcription factors were the predominant candidate genes for pod development, and eight of these 26 candidate genes showed relatively higher expression patterns in flowers and young pods. A significant pod length (PL) SNP and a single pod weight (SPW) SNP were successfully converted into kompetitive allele-specific polymerase chain reaction (KASP) markers and validated in the panel. These results enhance our understanding of the genetic basis of pod size, and also provide genetic resources for the molecular breeding of pod size in snap beans.
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Affiliation(s)
- Mao Li
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A & F University, Hangzhou, China
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Xinyi Wu
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Vegetable Legumes Germplasm Enhancement and Molecular Breeding in Southern China (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Baogen Wang
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Vegetable Legumes Germplasm Enhancement and Molecular Breeding in Southern China (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Xiaohua Wu
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Vegetable Legumes Germplasm Enhancement and Molecular Breeding in Southern China (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Ying Wang
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Vegetable Legumes Germplasm Enhancement and Molecular Breeding in Southern China (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Jian Wang
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Vegetable Legumes Germplasm Enhancement and Molecular Breeding in Southern China (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Junyang Dong
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A & F University, Hangzhou, China
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Jian Wu
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A & F University, Hangzhou, China
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Zhongfu Lu
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Vegetable Legumes Germplasm Enhancement and Molecular Breeding in Southern China (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Yuyan Sun
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Vegetable Legumes Germplasm Enhancement and Molecular Breeding in Southern China (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Wenqi Dong
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Vegetable Legumes Germplasm Enhancement and Molecular Breeding in Southern China (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Jing Yang
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A & F University, Hangzhou, China
| | - Guojing Li
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Vegetable Legumes Germplasm Enhancement and Molecular Breeding in Southern China (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
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