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Ma X, Wu H, Liu B, Wang S, Zhang Y, Su M, Zheng B, Pan H, Du B, Wang J, He P, Chen Q, An H, Xu W, Luo X. Genomic diversity, population structure, and genome-wide association reveal genetic differentiation and trait improvements in mango. HORTICULTURE RESEARCH 2024; 11:uhae153. [PMID: 39006000 PMCID: PMC11246242 DOI: 10.1093/hr/uhae153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 05/23/2024] [Indexed: 07/16/2024]
Abstract
Mango (Mangifera indica L.) has been widely cultivated as a culturally and economically significant fruit tree for roughly 4000 years. Despite its rich history, little is known about the crop's domestication, genomic variation, and the genetic loci underlying agronomic traits. This study employs the whole-genome re-sequencing of 224 mango accessions sourced from 22 countries, with an average sequencing depth of 16.37×, to explore their genomic variation and diversity. Through phylogenomic analysis, M. himalis J.Y. Liang, a species grown in China, was reclassified into the cultivated mango group known as M. indica. Moreover, our investigation of mango population structure and differentiation revealed that Chinese accessions could be divided into two distinct gene pools, indicating the presence of independent genetic diversity ecotypes. By coupling genome-wide association studies with analyses of genotype variation patterns and expression patterns, we identified several candidate loci and dominant genotypes associated with mango flowering capability, fruit weight, and volatile compound production. In conclusion, our study offers valuable insights into the genetic differentiation of mango populations, paving the way for future agronomic improvements through genomic-assisted breeding.
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Affiliation(s)
- Xiaowei Ma
- National Key Laboratory for Tropical Crop Breeding, Sanya 572024, China; Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture & Rural Affairs; Key Laboratory for Postharvest Physiology and Technology of Tropical Horticultural Products of Hainan Province, South Subtropical Crops Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524091, China
| | - Hongxia Wu
- National Key Laboratory for Tropical Crop Breeding, Sanya 572024, China; Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture & Rural Affairs; Key Laboratory for Postharvest Physiology and Technology of Tropical Horticultural Products of Hainan Province, South Subtropical Crops Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524091, China
| | - Bin Liu
- Panzhihua Academy of Agricultural and Forestry Sciences, Panzhihua, Sichuan 617061, China
| | - Songbiao Wang
- National Key Laboratory for Tropical Crop Breeding, Sanya 572024, China; Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture & Rural Affairs; Key Laboratory for Postharvest Physiology and Technology of Tropical Horticultural Products of Hainan Province, South Subtropical Crops Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524091, China
| | - Yuehua Zhang
- National Key Laboratory for Tropical Crop Breeding, Sanya 572024, China; Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture & Rural Affairs; Key Laboratory for Postharvest Physiology and Technology of Tropical Horticultural Products of Hainan Province, South Subtropical Crops Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524091, China
| | - Muqing Su
- National Key Laboratory for Tropical Crop Breeding, Sanya 572024, China; Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture & Rural Affairs; Key Laboratory for Postharvest Physiology and Technology of Tropical Horticultural Products of Hainan Province, South Subtropical Crops Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524091, China
| | - Bin Zheng
- National Key Laboratory for Tropical Crop Breeding, Sanya 572024, China; Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture & Rural Affairs; Key Laboratory for Postharvest Physiology and Technology of Tropical Horticultural Products of Hainan Province, South Subtropical Crops Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524091, China
| | - Hongbing Pan
- Panzhihua Academy of Agricultural and Forestry Sciences, Panzhihua, Sichuan 617061, China
| | - Bang Du
- Panzhihua Academy of Agricultural and Forestry Sciences, Panzhihua, Sichuan 617061, China
| | - Jun Wang
- Liangshan Academy of Forest and Grassland, Xichang, Sichuan 615000, China
| | - Ping He
- Liangshan Academy of Forest and Grassland, Xichang, Sichuan 615000, China
| | - Qianfu Chen
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571100, China
| | - Hong An
- Bioinformatics and Analytics Core, University of Missouri, Columbia, MO 65201, USA
| | - Wentian Xu
- National Key Laboratory for Tropical Crop Breeding, Sanya 572024, China; Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture & Rural Affairs; Key Laboratory for Postharvest Physiology and Technology of Tropical Horticultural Products of Hainan Province, South Subtropical Crops Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524091, China
| | - Xiang Luo
- College of Agriculture, Henan University, Zhengzhou, Henan 450046, China
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Zhou M, Fan J, Gao Y, Zheng C, Xu Y, Jia L, An X, Chen Z. Identification and analysis of UGT genes associated with triterpenoid saponin in soapberry (Sapindus mukorossi Gaertn.). BMC PLANT BIOLOGY 2024; 24:588. [PMID: 38902602 PMCID: PMC11191301 DOI: 10.1186/s12870-024-05281-4] [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: 02/08/2024] [Accepted: 06/10/2024] [Indexed: 06/22/2024]
Abstract
BACKGROUND Soapberry (Sapindus mukorossi) is an economically important multifunctional tree species. Triterpenoid saponins have many functions in soapberry. However, the types of uridine diphosphate (UDP) glucosyltransferases (UGTs) involved in the synthesis of triterpenoid saponins in soapberry have not been clarified. RESULTS In this study, 42 SmUGTs were identified in soapberry, which were unevenly distributed on 12 chromosomes and had sequence lengths of 450 bp to 1638 bp, with an average of 1388 bp. The number of amino acids in SmUGTs was 149 to 545, with an average of 462. Most SmUGTs were acidic and hydrophilic unstable proteins, and their secondary structures were mainly α-helices and random coils. All had conserved UDPGT and PSPG-box domains. Phylogenetic analysis divided them into four subclasses, which glycosylated different carbon atoms. Prediction of cis-acting elements suggested roles of SmUGTs in plant development and responses to environmental stresses. The expression patterns of SmUGTs differed according to the developmental stage of fruits, as determined by transcriptomics and RT-qPCR. Co-expression network analysis of SmUGTs and related genes/transcription factors in the triterpenoid saponin synthesis pathway was also performed. The results indicated potential roles for many transcription factors, such as SmERFs, SmGATAs and SmMYBs. A correlation analysis showed that 42 SmUGTs were crucial in saponin synthesis in soapberry. CONCLUSIONS Our findings suggest optimal targets for manipulating glycosylation in soapberry triterpenoid saponin biosynthesis; they also provide a theoretical foundation for further evaluation of the functions of SmUGTs and analyses of their biosynthetic mechanisms.
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Affiliation(s)
- Mingzhu Zhou
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Jialin Fan
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Yuhan Gao
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Chunyuan Zheng
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Yuanyuan Xu
- College of Forestry, Guangxi University, Nanning, 530004, China
| | - Liming Jia
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Xinmin An
- National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Zhong Chen
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China.
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Ling Q, Zhang B, Wang Y, Xiao Z, Hou J, Liu Q, Zhang J, Xiao C, Jin Z, Liu Y. Identification of key genes controlling monoterpene biosynthesis of Citral-type Cinnamomum bodinieri Levl. Based on transcriptome and metabolite profiling. BMC Genomics 2024; 25:540. [PMID: 38822238 PMCID: PMC11141066 DOI: 10.1186/s12864-024-10419-7] [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: 11/11/2023] [Accepted: 05/15/2024] [Indexed: 06/02/2024] Open
Abstract
The citral-type is the most common chemotype in Cinnamomum bodinieri Levl (C. bodinieri), which has been widely used in the daily necessities, cosmetics, biomedicine, and aromatic areas due to their high citral content. Despite of this economic prospect, the possible gene-regulatory roles of citral biosynthesis in the same geographic environment remains unknown. In this study, the essential oils (EOs) of three citral type (B1, B2, B3) and one non-citral type (B0) varieties of C. bodinieri were identified by GC-MS after hydrodistillation extraction in July. 43 components more than 0.10% were identified in the EOs, mainly composed of monoterpenes (75.8-91.84%), and high content citral (80.63-86.33%) were identified in citral-type. Combined transcriptome and metabolite profiling analysis, plant-pathogen interaction(ko04626), MAPK signaling pathway-plant(ko04016), starch and sucrose metabolism(ko00500), plant hormone signal transduction(ko04075), terpenoid backbone biosynthesis (ko00900) and monoterpenoid biosynthesis (ko00902) pathways were enriched significantly. The gene expression of differential genes were linked to the monoterpene content, and the geraniol synthase (CbGES), alcohol dehydrogenase (CbADH), geraniol 8-hydroxylase-like (CbCYP76B6-like) and 8-hydroxygeraniol dehydrogenase (Cb10HGO) were upregulated in the citral-type, indicating that they were associated with high content of geraniol and citral. The activities of CbGES and CbADH in citral type were higher than in non-citral type, which was corroborated by enzyme-linked immunosorbent assay (ELISA). This study on the accumulation mechanism of citral provides a theoretical basis for the development of essential oil of C. bodinieri.
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Affiliation(s)
- Qingyan Ling
- School of Soil and Water Conservation, Nanchang Institute of Technology, Jiangxi Provincial Engineering Research Center For Seed-Breeding and Utilization of Camphor Trees, Nanchang, China
- College of Forestry, Jiangxi Agricultural University, Jiangxi Key Laboratory of Subtropical Forest Resources Cultivation, Nanchang, China
| | - Beihong Zhang
- School of Soil and Water Conservation, Nanchang Institute of Technology, Jiangxi Provincial Engineering Research Center For Seed-Breeding and Utilization of Camphor Trees, Nanchang, China
| | - Yanbo Wang
- School of Soil and Water Conservation, Nanchang Institute of Technology, Jiangxi Provincial Engineering Research Center For Seed-Breeding and Utilization of Camphor Trees, Nanchang, China
| | - Zufei Xiao
- School of Soil and Water Conservation, Nanchang Institute of Technology, Jiangxi Provincial Engineering Research Center For Seed-Breeding and Utilization of Camphor Trees, Nanchang, China
| | - Jiexi Hou
- School of Soil and Water Conservation, Nanchang Institute of Technology, Jiangxi Provincial Engineering Research Center For Seed-Breeding and Utilization of Camphor Trees, Nanchang, China
| | - Qingqing Liu
- School of Soil and Water Conservation, Nanchang Institute of Technology, Jiangxi Provincial Engineering Research Center For Seed-Breeding and Utilization of Camphor Trees, Nanchang, China
| | - Jie Zhang
- School of Soil and Water Conservation, Nanchang Institute of Technology, Jiangxi Provincial Engineering Research Center For Seed-Breeding and Utilization of Camphor Trees, Nanchang, China
| | - Changlong Xiao
- School of Soil and Water Conservation, Nanchang Institute of Technology, Jiangxi Provincial Engineering Research Center For Seed-Breeding and Utilization of Camphor Trees, Nanchang, China
| | - Zhinong Jin
- School of Soil and Water Conservation, Nanchang Institute of Technology, Jiangxi Provincial Engineering Research Center For Seed-Breeding and Utilization of Camphor Trees, Nanchang, China.
| | - Yuanqiu Liu
- College of Forestry, Jiangxi Agricultural University, Jiangxi Key Laboratory of Subtropical Forest Resources Cultivation, Nanchang, China.
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Zheng J, He X, Zhou X, Liu X, Yi Y, Su D, Zhang W, Liao Y, Ye J, Xu F. The Ginkgo biloba microRNA160-ERF4 module participates in terpene trilactone biosynthesis. PLANT PHYSIOLOGY 2024; 195:1446-1460. [PMID: 38431523 DOI: 10.1093/plphys/kiae114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/09/2024] [Accepted: 01/28/2024] [Indexed: 03/05/2024]
Abstract
Terpene trilactones (TTLs) are important secondary metabolites in ginkgo (Ginkgo biloba); however, their biosynthesis gene regulatory network remains unclear. Here, we isolated a G. biloba ethylene response factor 4 (GbERF4) involved in TTL synthesis. Overexpression of GbERF4 in tobacco (Nicotiana tabacum) significantly increased terpenoid content and upregulated the expression of key enzyme genes (3-hydroxy-3-methylglutaryl-CoA reductase [HMGR], 3-hydroxy-3-methylglutaryl-CoA synthase [HMGS], 1-deoxy-D-xylulose-5-phosphate reductoisomerase [DXR], 1-deoxy-D-xylulose-5-phosphate synthase [DXS], acetyl-CoA C-acetyltransferase [AACT], and geranylgeranyl diphosphate synthase [GGPPS]) in the terpenoid pathway in tobacco, suggesting that GbERF4 functions in regulating the synthesis of terpenoids. The expression pattern analysis and previous microRNA (miRNA) sequencing showed that gb-miR160 negatively regulates the biosynthesis of TTLs. Transgenic experiments showed that overexpression of gb-miR160 could significantly inhibit the accumulation of terpenoids in tobacco. Targeted inhibition and dual-luciferase reporter assays confirmed that gb-miR160 targets and negatively regulates GbERF4. Transient overexpression of GbERF4 increased TTL content in G. biloba, and further transcriptome analysis revealed that DXS, HMGS, CYPs, and transcription factor genes were upregulated. In addition, yeast 1-hybrid and dual-luciferase reporter assays showed that GbERF4 could bind to the promoters of the HMGS1, AACT1, DXS1, levopimaradiene synthase (LPS2), and GGPPS2 genes in the TTL biosynthesis pathway and activate their expression. In summary, this study investigated the molecular mechanism of the gb-miR160-GbERF4 regulatory module in regulating the biosynthesis of TTLs. It provides information for enriching the understanding of the regulatory network of TTL biosynthesis and offers important gene resources for the genetic improvement of G. biloba with high contents of TTLs.
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Affiliation(s)
- Jiarui Zheng
- College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
| | - Xiao He
- College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
| | - Xian Zhou
- College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
| | - Xiaomeng Liu
- College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
| | - Yuwei Yi
- College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
| | - Dongxue Su
- College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
| | - Weiwei Zhang
- College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
| | - Yongling Liao
- College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
| | - Jiabao Ye
- College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
| | - Feng Xu
- College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
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Dai J, Wang M, Yin H, Han X, Fan Y, Wei Y, Lin J, Liu J. Integrating GC-MS and comparative transcriptome analysis reveals that TsERF66 promotes the biosynthesis of caryophyllene in Toona sinensis tender leaves. FRONTIERS IN PLANT SCIENCE 2024; 15:1378418. [PMID: 38872893 PMCID: PMC11171135 DOI: 10.3389/fpls.2024.1378418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 05/09/2024] [Indexed: 06/15/2024]
Abstract
Introduction The strong aromatic characteristics of the tender leaves of Toona sinensis determine their quality and economic value. Methods and results Here, GC-MS analysis revealed that caryophyllene is a key volatile compound in the tender leaves of two different T. sinensis varieties, however, the transcriptional mechanisms controlling its gene expression are unknown. Comparative transcriptome analysis revealed significant enrichment of terpenoid synthesis pathway genes, suggesting that the regulation of terpenoid synthesis-related gene expression is an important factor leading to differences in aroma between the two varieties. Further analysis of expression levels and genetic evolution revealed that TsTPS18 is a caryophyllene synthase, which was confirmed by transient overexpression in T. sinensis and Nicotiana benthamiana leaves. Furthermore, we screened an AP2/ERF transcriptional factor ERF-IX member, TsERF66, for the potential regulation of caryophyllene synthesis. The TsERF66 had a similar expression trend to that of TsTPS18 and was highly expressed in high-aroma varieties and tender leaves. Exogenous spraying of MeJA also induced the expression of TsERF66 and TsTPS18 and promoted the biosynthesis of caryophyllene. Transient overexpression of TsERF66 in T. sinensis significantly promoted TsTPS18 expression and caryophyllene biosynthesis. Discussion Our results showed that TsERF66 promoted the expression of TsTPS18 and the biosynthesis of caryophyllene in T. sinensis leaves, providing a strategy for improving the aroma of tender leaves.
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Affiliation(s)
| | | | | | | | | | | | | | - Jun Liu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
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Ye P, Che X, Liu Y, Zeng M, Guo W, Long Y, Liu T, Wang Z. Genome-wide identification and characterization of the AP2/ERF gene family in loblolly pine ( Pinus taeda L.). PeerJ 2024; 12:e17388. [PMID: 38799072 PMCID: PMC11122039 DOI: 10.7717/peerj.17388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 04/23/2024] [Indexed: 05/29/2024] Open
Abstract
The loblolly pine (Pinus taeda L.) is one of the most profitable forest species worldwide owing to its quick growth, high wood yields, and strong adaptability. The AP2/ERF gene family plays a widespread role in the physiological processes of plant defense responses and the biosynthesis of metabolites. Nevertheless, there are no reports on this gene family in loblolly pine (P. taeda). In this study, a total of 303 members of the AP2/ERF gene family were identified. Through multiple sequence alignment and phylogenetic analysis, they were classified into four subfamilies, including AP2 (34), RAV (17), ERF (251), and Soloist (1). An analysis of the conservation domains, conserved motifs, and gene structure revealed that every PtAP2/ERF transcription factor (TF) had at least one AP2 domain. While evolutionary conservation was displayed within the same subfamilies, the distribution of conserved domains, conserved motifs, and gene architectures varied between subfamilies. Cis-element analysis revealed abundant light-responsive elements, phytohormone-responsive elements, and stress-responsive elements in the promoter of the PtAP2/ERF genes. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses of potential target genes showed that the AP2/ERF gene family might play a critical role in plant growth and development, the response to environmental stresses, and metabolite biosynthesis. Utilizing quantitative real-time PCR (qRT-PCR), we examined the expression patterns of 10 randomly selected genes from Group IX after 6 h of treatments with mechanical injury, ethephon (Eth), and methyl jasmonate (MeJA). The AP2/ERF gene family in the loblolly pine was systematically analyzed for the first time in this study, offering a theoretical basis for exploring the functions and applications of AP2/ERF genes.
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Affiliation(s)
- Peiqi Ye
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou, Guangdong, China
| | - Xiaoliang Che
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou, Guangdong, China
| | - Yang Liu
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou, Guangdong, China
| | - Ming Zeng
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou, Guangdong, China
| | - Wenbing Guo
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou, Guangdong, China
| | - Yongbin Long
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou, Guangdong, China
| | - Tianyi Liu
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou, Guangdong, China
| | - Zhe Wang
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou, Guangdong, China
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Zhang F, Pan Z, Han C, Dong H, Lin L, Qiao Q, Zhao K, Wu J, Tao S, Zhang S, Huang X. Pyrus betulaefolia ERF3 interacts with HsfC1a to coordinately regulate aquaporin PIP1;4 and NCED4 for drought tolerance. HORTICULTURE RESEARCH 2024; 11:uhae090. [PMID: 38799129 PMCID: PMC11116902 DOI: 10.1093/hr/uhae090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 03/20/2024] [Indexed: 05/29/2024]
Abstract
Environmental disasters like drought reduce agricultural output and plant growth. Redox management significantly affects plant stress responses. An earlier study found that PbPIP1;4 transports H2O2 and promotes H2O2 downstream cascade signaling to restore redox equilibrium. However, this regulatory mechanism requires additional investigation. In this search, the AP2 domain-containing transcription factor was isolated by screening Y1H from the wild pear (Pyrus betulaefolia) cDNA library, named PbERF3. The overexpression of PbERF3 in pear callus and Arabidopsis enhanced plant resistance to drought and re-established redox balance. The transcripts of the NCEDs gene were upregulated under drought stress. The drought stress-related abscisic acid (ABA) signaling pathway modulates PbERF3. PbERF3 silencing lowered drought tolerance. Furthermore, yeast 2-hybrid, luciferase, bimolecular fluorescence complementation, and co-immunoprecipitation assays verified that PbERF3 physically interacted with PbHsfC1a. The PbERF3-PbHsfC1a heterodimer coordinately bound to PbPIP1;4 and PbNCED4 promoter, therefore activating both the H2O2 and the ABA signaling pathway. This work revealed a novel PbERF3-PbHsfC1a-PbNCED4-PbPIP1;4 regulatory module, in which PbERF3 interacts with PbHsfC1a to trigger the expression of target genes. This module establishes an interaction between the H2O2 signaling component PbPIP1;4 and the ABA pathways component PbNCED4, enabling a response to drought.
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Affiliation(s)
- Feng Zhang
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Nanjing Agricultural University, No.1 Weigang, Tongwei Road, Nanjing 210095, China
| | - Zhijian Pan
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Nanjing Agricultural University, No.1 Weigang, Tongwei Road, Nanjing 210095, China
| | - Chenyang Han
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Nanjing Agricultural University, No.1 Weigang, Tongwei Road, Nanjing 210095, China
| | - Huizhen Dong
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Nanjing Agricultural University, No.1 Weigang, Tongwei Road, Nanjing 210095, China
| | - Likun Lin
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Nanjing Agricultural University, No.1 Weigang, Tongwei Road, Nanjing 210095, China
| | - Qinghai Qiao
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Nanjing Agricultural University, No.1 Weigang, Tongwei Road, Nanjing 210095, China
| | - Keke Zhao
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Nanjing Agricultural University, No.1 Weigang, Tongwei Road, Nanjing 210095, China
| | - Juyou Wu
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Nanjing Agricultural University, No.1 Weigang, Tongwei Road, Nanjing 210095, China
| | - Shutian Tao
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Nanjing Agricultural University, No.1 Weigang, Tongwei Road, Nanjing 210095, China
| | - Shaoling Zhang
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Nanjing Agricultural University, No.1 Weigang, Tongwei Road, Nanjing 210095, China
| | - Xiaosan Huang
- College of Horticulture, State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Nanjing Agricultural University, No.1 Weigang, Tongwei Road, Nanjing 210095, China
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Wang YC, Wei Y, Li XY, Zhang HM, Meng X, Duan CQ, Pan QH. Ethylene-responsive VviERF003 modulates glycosylated monoterpenoid synthesis by upregulating VviGT14 in grapes. HORTICULTURE RESEARCH 2024; 11:uhae065. [PMID: 38689696 PMCID: PMC11059816 DOI: 10.1093/hr/uhae065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 02/18/2024] [Indexed: 05/02/2024]
Abstract
Terpenoids are important contributors to the aroma of grapes and wines. Grapes contain terpenoids in both volatile free form and non-volatile glycosidic form, with the latter being more abundant. Glycosylated terpenoids are deemed as latent aromatic potentials for their essential role in adding to the flowery and fruity bouquet of wines. However, the transcriptional regulatory mechanism underlying glycosylated terpenoid biosynthesis remains poorly understood. Our prior study identified an AP2/ERF transcription factor, VviERF003, through DNA pull-down screening using the promoter of terpenoid glycosyltransferase VviGT14 gene. This study demonstrated that both genes were co-expressed and synchronized with the accumulation of glycosylated monoterpenoids during grape maturation. VviERF003 can bind to the VviGT14 promoter and promote its activity according to yeast one-hybrid and dual-luciferase assays. VviERF003 upregulated VviGT14 expression in vivo, leading to increased production of glycosylated monoterpenoids based on the evidence from overexpression or RNA interference in leaves, berry skins, and calli of grapes, as well as tomato fruits. Additionally, VviERF003 and VviGT14 expressions and glycosylated monoterpenoid levels were induced by ethylene in grapes. The findings suggest that VviERF003 is ethylene-responsive and stimulates glycosylated monoterpenoid biosynthesis through upregulating VviGT14 expression.
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Affiliation(s)
- Ya-Chen Wang
- Center for Viticulture and Enology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Yi Wei
- Center for Viticulture and Enology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Xiang-Yi Li
- Center for Viticulture and Enology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hui-Min Zhang
- Center for Viticulture and Enology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Xiao Meng
- Center for Viticulture and Enology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Chang-Qing Duan
- Center for Viticulture and Enology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Qiu-Hong Pan
- Center for Viticulture and Enology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
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9
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Wang H, Han T, Bai A, Xu H, Wang J, Hou X, Li Y. Potential Regulatory Networks and Heterosis for Flavonoid and Terpenoid Contents in Pak Choi: Metabolomic and Transcriptome Analyses. Int J Mol Sci 2024; 25:3587. [PMID: 38612398 PMCID: PMC11011442 DOI: 10.3390/ijms25073587] [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: 01/31/2024] [Revised: 03/13/2024] [Accepted: 03/18/2024] [Indexed: 04/14/2024] Open
Abstract
Pak choi exhibits a diverse color range and serves as a rich source of flavonoids and terpenoids. However, the mechanisms underlying the heterosis and coordinated regulation of these compounds-particularly isorhamnetin-remain unclear. This study involved three hybrid combinations and the detection of 528 metabolites from all combinations, including 26 flavonoids and 88 terpenoids, through untargeted metabolomics. Analysis of differential metabolites indicated that the heterosis for the flavonoid and terpenoid contents was parent-dependent, and positive heterosis was observed for isorhamnetin in the two hybrid combinations (SZQ, 002 and HMG, ZMG). Moreover, there was a high transcription level of flavone 3'-O-methyltransferase, which is involved in isorhamnetin biosynthesis. The third group was considered the ideal hybrid combination for investigating the heterosis of flavonoid and terpenoid contents. Transcriptome analysis identified a total of 12,652 DEGs (TPM > 1) in various groups that were used for comparison, and DEGs encoding enzymes involved in various categories, including "carotenoid bio-synthesis" and "anthocyanin biosynthesis", were enriched in the hybrid combination (SZQ, 002). Moreover, the category of anthocyanin biosynthesis also was enriched in the hybrid combination (HMG, ZMG). The flavonoid pathway demonstrated more differential metabolites than the terpenoid pathway did. The WGCNA demonstrated notable positive correlations between the dark-green modules and many flavonoids and terpenoids. Moreover, there were 23 ERF genes in the co-expression network (r ≥ 0.90 and p < 0.05). Thus, ERF genes may play a significant role in regulating flavonoid and terpenoid biosynthesis. These findings enhance our understanding of the heterosis and coordinated regulation of flavonoid and terpenoid biosynthesis in pak choi, offering insights for genomics-based breeding improvements.
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Affiliation(s)
- Haibin Wang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (H.W.); (T.H.); (A.B.); (H.X.); (J.W.); (X.H.)
| | - Tiantian Han
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (H.W.); (T.H.); (A.B.); (H.X.); (J.W.); (X.H.)
| | - Aimei Bai
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (H.W.); (T.H.); (A.B.); (H.X.); (J.W.); (X.H.)
| | - Huanhuan Xu
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (H.W.); (T.H.); (A.B.); (H.X.); (J.W.); (X.H.)
| | - Jianjun Wang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (H.W.); (T.H.); (A.B.); (H.X.); (J.W.); (X.H.)
| | - Xilin Hou
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (H.W.); (T.H.); (A.B.); (H.X.); (J.W.); (X.H.)
- Nanjing Suman Plasma Engineering Research Institute, Nanjing Agricultural University, Nanjing 210095, China
| | - Ying Li
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (H.W.); (T.H.); (A.B.); (H.X.); (J.W.); (X.H.)
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10
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Zhao Y, Chen Y, Gao M, Wang Y. Alcohol dehydrogenases regulated by a MYB44 transcription factor underlie Lauraceae citral biosynthesis. PLANT PHYSIOLOGY 2024; 194:1674-1691. [PMID: 37831423 DOI: 10.1093/plphys/kiad553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/18/2023] [Accepted: 09/23/2023] [Indexed: 10/14/2023]
Abstract
Lineage-specific terpenoids have arisen throughout the evolution of land plants and are believed to play a role in interactions between plants and the environment. Species-specific gene clusters in plants have provided insight on the evolution of secondary metabolism. Lauraceae is an ecologically important plant family whose members are also of considerable economic value given their monoterpene contents. However, the gene cluster responsible for the biosynthesis of monoterpenes remains yet to be elucidated. Here, a Lauraceae-specific citral biosynthetic gene cluster (CGC) was identified and investigated using a multifaceted approach that combined phylogenetic, collinearity, and biochemical analyses. The CGC comprises MYB44 as a regulator and 2 alcohol dehydrogenases (ADHs) as modifying enzymes, which derived from species-specific tandem and proximal duplication events. Activity and substrate divergence of the ADHs has resulted in the fruit of mountain pepper (Litsea cubeba), a core Lauraceae species, consisting of more than 80% citral. In addition, MYB44 negatively regulates citral biosynthesis by directly binding to the promoters of the ADH-encoding genes. The aggregation of citral biosynthetic pathways suggests that they may form the basis of important characteristics that enhance adaptability. The findings of this study provide insights into the evolution of and the regulatory mechanisms involved in plant terpene biosynthesis.
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Affiliation(s)
- Yunxiao Zhao
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, Zhejiang 311400, China
| | - Yicun Chen
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, Zhejiang 311400, China
| | - Ming Gao
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, Zhejiang 311400, China
| | - Yangdong Wang
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, Zhejiang 311400, China
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11
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Moroldo M, Blanchet N, Duruflé H, Bernillon S, Berton T, Fernandez O, Gibon Y, Moing A, Langlade NB. Genetic control of abiotic stress-related specialized metabolites in sunflower. BMC Genomics 2024; 25:199. [PMID: 38378469 PMCID: PMC10877922 DOI: 10.1186/s12864-024-10104-9] [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: 07/06/2023] [Accepted: 02/09/2024] [Indexed: 02/22/2024] Open
Abstract
BACKGROUND Abiotic stresses in plants include all the environmental conditions that significantly reduce yields, like drought and heat. One of the most significant effects they exert at the cellular level is the accumulation of reactive oxygen species, which cause extensive damage. Plants possess two mechanisms to counter these molecules, i.e. detoxifying enzymes and non-enzymatic antioxidants, which include many classes of specialized metabolites. Sunflower, the fourth global oilseed, is considered moderately drought resistant. Abiotic stress tolerance in this crop has been studied using many approaches, but the control of specialized metabolites in this context remains poorly understood. Here, we performed the first genome-wide association study using abiotic stress-related specialized metabolites as molecular phenotypes in sunflower. After analyzing leaf specialized metabolites of 450 hybrids using liquid chromatography-mass spectrometry, we selected a subset of these compounds based on their association with previously known abiotic stress-related quantitative trait loci. Eventually, we characterized these molecules and their associated genes. RESULTS We putatively annotated 30 compounds which co-localized with abiotic stress-related quantitative trait loci and which were associated to seven most likely candidate genes. A large proportion of these compounds were potential antioxidants, which was in agreement with the role of specialized metabolites in abiotic stresses. The seven associated most likely candidate genes, instead, mainly belonged to cytochromes P450 and glycosyltransferases, two large superfamilies which catalyze greatly diverse reactions and create a wide variety of chemical modifications. This was consistent with the high plasticity of specialized metabolism in plants. CONCLUSIONS This is the first characterization of the genetic control of abiotic stress-related specialized metabolites in sunflower. By providing hints concerning the importance of antioxidant molecules in this biological context, and by highlighting some of the potential molecular mechanisms underlying their biosynthesis, it could pave the way for novel applications in breeding. Although further analyses will be required to better understand this topic, studying how antioxidants contribute to the tolerance to abiotic stresses in sunflower appears as a promising area of research.
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Affiliation(s)
- Marco Moroldo
- UMR LIPME, INRAE, CNRS, Université de Toulouse, 31326, Castanet Tolosan, France.
| | - Nicolas Blanchet
- UMR LIPME, INRAE, CNRS, Université de Toulouse, 31326, Castanet Tolosan, France
| | - Harold Duruflé
- UMR LIPME, INRAE, CNRS, Université de Toulouse, 31326, Castanet Tolosan, France
- UMR BioForA, INRAE, ONF, Orléans, 45075, France
| | - Stéphane Bernillon
- UMR BFP, INRAE, Université de Bordeaux, 33140, Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France
- UMR MYCSA, INRAE, 33140, Villenave d'Ornon, France
| | - Thierry Berton
- UMR BFP, INRAE, Université de Bordeaux, 33140, Villenave d'Ornon, France
| | - Olivier Fernandez
- UMR BFP, INRAE, Université de Bordeaux, 33140, Villenave d'Ornon, France
- USC RIBP, INRAE, Université de Reims, 51100, Reims, France
| | - Yves Gibon
- UMR BFP, INRAE, Université de Bordeaux, 33140, Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France
| | - Annick Moing
- UMR BFP, INRAE, Université de Bordeaux, 33140, Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France
| | - Nicolas B Langlade
- UMR LIPME, INRAE, CNRS, Université de Toulouse, 31326, Castanet Tolosan, France
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12
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Zhu YJ, Li JW, Meng H, He WJ, Yang Y, Wei JH. Effects of ethephon on heartwood formation and related physiological indices of Dalbergia odorifera T. Chen. FRONTIERS IN PLANT SCIENCE 2024; 14:1281877. [PMID: 38333038 PMCID: PMC10850394 DOI: 10.3389/fpls.2023.1281877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 12/19/2023] [Indexed: 02/10/2024]
Abstract
Introduction Dalbergia odorifera T. Chen, known as fragrant rosewood, is a rare and endangered tree species. Studies have shown that plant growth regulators can effectively promote heartwood formation. This study aimed to investigate the effects of ethephon (ETH) on heartwood formation and the influence of ethephon and hydrogen peroxide (H2O2) on the physiological characteristics in D. odorifera. Methods D. odorifera branches underwent treatment with 2.5% plant growth regulators, including ETH, jasmonic acid (JA), salicylic acid (SA), abscisic acid (ABA), H2O2, and inhibitors such as ascorbic acid (AsA) to inhibit H2O2 synthesis, and (S) -trans 2-amino-4 - (2-aminoethoxy) -3-butene (AVG) to inhibit ethylene synthesis. After a 14-day period, we conducted an analysis to evaluate the impact of these plant growth regulators on elongation distance, vessel occlusion percentage, and trans-nerol content. Additionally, the effects of ETH and H2O2 on endogenous plant hormones, H2O2 content, soluble protein content, and enzyme activity were investigated within 0-48 h of treatment. Results After treatment with ETH for 14 days, the extension distance of the heartwood material was 15 cm, while the trans-nerolol content was 15 times that of the ABA group. ETH and H2O2 promoted endogenous ethylene synthesis; Ethylene content peaked at 6 and 18 h. The peak ethylene content in the ETH group was 68.07%, 12.89%, and 20.87% higher than the initial value of the H2O2 group and ddH2O group, respectively, and 29.64% higher than that in the AVG group. The soluble protein content and activity of related enzymes were significantly increased following ETH treatment. Discussion ETH exhibited the most impact on heartwood formation while not hindering tree growth. This treatment effectively triggered the production of endogenous ethylene in plants and enhanced the activity of essential enzymes involved in heartwood formation. These findings serve as a valuable reference for future investigations into heartwood formation.
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Affiliation(s)
- Yuan-Jing Zhu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, China
| | - Jia-Wen Li
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, China
| | - Hui Meng
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, China
| | - Wen-Jie He
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, China
| | - Yun Yang
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, China
| | - Jian-He Wei
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, China
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13
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Li D, Liu L, Li X, Wei G, Cai Y, Sun X, Fan H. DoAP2/ERF89 activated the terpene synthase gene DoPAES in Dendrobium officinale and participated in the synthesis of β-patchoulene. PeerJ 2024; 12:e16760. [PMID: 38250724 PMCID: PMC10800100 DOI: 10.7717/peerj.16760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 12/13/2023] [Indexed: 01/23/2024] Open
Abstract
Dendrobium officinale Kimura et Migo is a tonic plant that has both ornamental and medicinal properties. Terpenoids are significant and diverse secondary metabolites in plants, and are one of the important natural active ingredients in D. officinale. The AP2/ERF gene family plays a major role in primary and secondary metabolism. However, the AP2/ERF transcription factor family has not been identified in D. officinale, and it is unclear if it is involved in the regulation of terpenoid biosynthesis. This study identified a sesquiterpene synthetase-β-patchoulene synthase (DoPAES) using transcriptome and terpenic metabolic profile analyses. A total of 111 members of the AP2/ERF family were identified through the whole genome of D. officinale. The tissue-specific expression and gene co-expression pattern of the DoAP2/ERF family members were analyzed. The results showed that the expression of DoPAES was highly correlated with the expression of DoAP2/ERF89 and DoAP2/ERF47. The yeast one-hybrid (Y1H) assays and dual-luciferase experiments demonstrated that DoAP2/ERF89 and DoAP2/ERF47 could regulate the expression of DoPAES. The transcriptional regulatory effects were examined using homologous transient expression of DoAP2/ERF89 in protocorms of D. officinale. DoAP2/ERF89 positively regulated the biosynthesis of β-patchoulene. This study showed that DoAP2/ERF89 can bind to the promoter region of DoPAES to control its expression and further regulate the biosynthesis of β-patchoulene in D. officinale. These results provide new insights on the regulation of terpenoid biosynthesis.
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Affiliation(s)
- Decong Li
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui, China
| | - Lin Liu
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui, China
| | - Xiaohong Li
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui, China
| | - Guo Wei
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou, Jiangsu, China
| | - Yongping Cai
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui, China
| | - Xu Sun
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui, China
| | - Honghong Fan
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui, China
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14
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Baranov D, Timerbaev V. Recent Advances in Studying the Regulation of Fruit Ripening in Tomato Using Genetic Engineering Approaches. Int J Mol Sci 2024; 25:760. [PMID: 38255834 PMCID: PMC10815249 DOI: 10.3390/ijms25020760] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/28/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024] Open
Abstract
Tomato (Solanum lycopersicum L.) is one of the most commercially essential vegetable crops cultivated worldwide. In addition to the nutritional value, tomato is an excellent model for studying climacteric fruits' ripening processes. Despite this, the available natural pool of genes that allows expanding phenotypic diversity is limited, and the difficulties of crossing using classical selection methods when stacking traits increase proportionally with each additional feature. Modern methods of the genetic engineering of tomatoes have extensive potential applications, such as enhancing the expression of existing gene(s), integrating artificial and heterologous gene(s), pointing changes in target gene sequences while keeping allelic combinations characteristic of successful commercial varieties, and many others. However, it is necessary to understand the fundamental principles of the gene molecular regulation involved in tomato fruit ripening for its successful use in creating new varieties. Although the candidate genes mediate ripening have been identified, a complete picture of their relationship has yet to be formed. This review summarizes the latest (2017-2023) achievements related to studying the ripening processes of tomato fruits. This work attempts to systematize the results of various research articles and display the interaction pattern of genes regulating the process of tomato fruit ripening.
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Affiliation(s)
- Denis Baranov
- Laboratory of Expression Systems and Plant Genome Modification, Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Science, 142290 Pushchino, Russia;
- Laboratory of Plant Genetic Engineering, All-Russia Research Institute of Agricultural Biotechnology, 127550 Moscow, Russia
| | - Vadim Timerbaev
- Laboratory of Expression Systems and Plant Genome Modification, Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Science, 142290 Pushchino, Russia;
- Laboratory of Plant Genetic Engineering, All-Russia Research Institute of Agricultural Biotechnology, 127550 Moscow, Russia
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15
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Zhao Y, Chen Y, Gao M, Wu L, Wang Y. LcMYB106 suppresses monoterpene biosynthesis by negatively regulating LcTPS32 expression in Litsea cubeba. TREE PHYSIOLOGY 2023; 43:2150-2161. [PMID: 37682081 DOI: 10.1093/treephys/tpad111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 05/15/2023] [Accepted: 09/05/2023] [Indexed: 09/09/2023]
Abstract
Litsea cubeba, the core species of the Lauraceae family, is valuable for the production of essential oils due to its high concentration of monoterpenes (90%). The key monoterpene synthase and metabolic regulatory network of monoterpene biosynthesis have provided new insights for improving essential oil content. However, there are few studies on the regulation mechanism of monoterpenes in L. cubeba. In this study, we investigated LcTPS32, a member of the TPS-b subfamily, and identified its function as an enzyme for the synthesis of monoterpenes, including geraniol, α-pinene, β-pinene, β-myrcene, linalool and eucalyptol. The quantitative real-time PCR analysis showed that LcTPS32 was highly expressed in the fruits of L. cubeba and contributed to the characteristic flavor of its essential oil. Overexpression of LcTPS32 resulted in a significant increase in the production of monoterpenes in L. cubeba by activating both the MVA and MEP pathways. Additionally, the study revealed that LcMYB106 played a negative regulatory role in monoterpenes biosynthesis by directly binding to the promoter of LcTPS32. Our study indicates that LcMYB106 could serve as a crucial target for metabolic engineering endeavors, aiming at enhancing the monoterpene biosynthesis in L. cubeba.
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Affiliation(s)
- Yunxiao Zhao
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Xiangshan Rd, Beijing 100091, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Daqiao Rd, Hangzhou, Zhejiang 311400, China
| | - Yicun Chen
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Xiangshan Rd, Beijing 100091, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Daqiao Rd, Hangzhou, Zhejiang 311400, China
| | - Ming Gao
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Xiangshan Rd, Beijing 100091, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Daqiao Rd, Hangzhou, Zhejiang 311400, China
| | - Liwen Wu
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Xiangshan Rd, Beijing 100091, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Daqiao Rd, Hangzhou, Zhejiang 311400, China
| | - Yangdong Wang
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Xiangshan Rd, Beijing 100091, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Daqiao Rd, Hangzhou, Zhejiang 311400, China
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Guo Y, Qi Y, Feng Y, Yang Y, Xue L, El-Kassaby YA, Wang G, Fu F. Inferring the Regulatory Network of miRNAs on Terpene Trilactone Biosynthesis Affected by Environmental Conditions. Int J Mol Sci 2023; 24:17002. [PMID: 38069325 PMCID: PMC10707241 DOI: 10.3390/ijms242317002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
As a medicinal tree species, ginkgo (Ginkgo biloba L.) and terpene trilactones (TTLs) extracted from its leaves are the main pharmacologic activity constituents and important economic indicators of its value. The accumulation of TTLs is known to be affected by environmental stress, while the regulatory mechanism of environmental response mediated by microRNAs (miRNAs) at the post-transcriptional levels remains unclear. Here, we focused on grafted ginkgo grown in northwestern, southwestern, and eastern-central China and integrally analyzed RNA-seq and small RNA-seq high-throughput sequencing data as well as metabolomics data from leaf samples of ginkgo clones grown in natural environments. The content of bilobalide was highest among detected TTLs, and there was more than a twofold variation in the accumulation of bilobalide between growth conditions. Meanwhile, transcriptome analysis found significant differences in the expression of 19 TTL-related genes among ginkgo leaves from different environments. Small RNA sequencing and analysis showed that 62 of the 521 miRNAs identified were differentially expressed among different samples, especially the expression of miRN50, miR169h/i, and miR169e was susceptible to environmental changes. Further, we found that transcription factors (ERF, MYB, C3H, HD-ZIP, HSF, and NAC) and miRNAs (miR319e/f, miRN2, miRN54, miR157, miR185, and miRN188) could activate or inhibit the expression of TTL-related genes to participate in the regulation of terpene trilactones biosynthesis in ginkgo leaves by weighted gene co-regulatory network analysis. Our findings provide new insights into the understanding of the regulatory mechanism of TTL biosynthesis but also lay the foundation for ginkgo leaves' medicinal value improvement under global change.
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Affiliation(s)
- Ying Guo
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (Y.Q.); (Y.F.)
| | - Yongli Qi
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (Y.Q.); (Y.F.)
| | - Yangfan Feng
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (Y.Q.); (Y.F.)
| | - Yuting Yang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (Y.Q.); (Y.F.)
| | - Liangjiao Xue
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (Y.Q.); (Y.F.)
| | - Yousry A. El-Kassaby
- Department of Forest and Conservation Sciences, Faculty of Forestry, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada;
| | - Guibin Wang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (Y.Q.); (Y.F.)
| | - Fangfang Fu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (Y.Q.); (Y.F.)
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17
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Huang X, Zhang W, Liao Y, Ye J, Xu F. Contemporary understanding of transcription factor regulation of terpenoid biosynthesis in plants. PLANTA 2023; 259:2. [PMID: 37971670 DOI: 10.1007/s00425-023-04268-z] [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: 06/20/2023] [Accepted: 10/18/2023] [Indexed: 11/19/2023]
Abstract
KEY MESSAGE This review summarized how TFs function independently or in response to environmental factors to regulate terpenoid biosynthesis via fine-tuning the expression of rate-limiting enzymes. Terpenoids are derived from various species and sources. They are essential for interacting with the environment and defense mechanisms, such as antimicrobial, antifungal, antiviral, and antiparasitic properties. Almost all terpenoids have high medicinal value and economic performance. Recently, the control of enzyme genes on terpenoid biosynthesis has received a great deal of attention, but transcriptional factors regulatory network on terpenoid biosynthesis and accumulation has yet to get a thorough review. Transcription factors function as activators or suppressors independently or in response to environmental stimuli, fine-tuning terpenoid accumulation through regulating rate-limiting enzyme expression. This study investigates the advancements in transcription factors related to terpenoid biosynthesis and systematically summarizes previous works on the specific mechanisms of transcription factors that regulate terpenoid biosynthesis via hormone signal-transcription regulatory networks in plants. This will help us to better comprehend the regulatory network of terpenoid biosynthesis and build the groundwork for terpenoid development and effective utilization.
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Affiliation(s)
- Xinru Huang
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, Hubei, China
| | - Weiwei Zhang
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, Hubei, China
| | - Yongling Liao
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, Hubei, China
| | - Jiabao Ye
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, Hubei, China.
| | - Feng Xu
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, Hubei, China.
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18
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Wang Z, Yang J, Gao Q, He S, Xu Y, Luo Z, Liu P, Wu M, Xu X, Ma L, Zhang Z, Yang Y, Yang J. The transcription factor NtERF13a enhances abiotic stress tolerance and phenylpropanoid compounds biosynthesis in tobacco. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 334:111772. [PMID: 37331634 DOI: 10.1016/j.plantsci.2023.111772] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/19/2023] [Accepted: 06/12/2023] [Indexed: 06/20/2023]
Abstract
The AP2/ERF (APETALA2/ETHYLENE RESPONSE FACTOR) transcription factors play multiple roles in modulating the biosynthesis of diverse specialized metabolites in response to various environmental stresses. ERF13 has been shown to participate in plant resistance to biotic stress as well as in repressing the synthesis of fatty acid. However, its full roles in regulating plant metabolism and stress resistance still remains to be further studied. In this study, we identified two NtERF genes from N. tabacum genome that belong to Ⅸa subgroup of ERF family. Over-expression and knock-out of NtERF13a showed that NtERF13a could enhance plant resistance to salt and drought stresses, as well as promoted the biosynthesis of chlorogenic acid (CGA), flavonoids, and lignin in tobacco. Transcriptome analysis between WT and NtERF13a-OE plants revealed 6 differentially expressed genes (DEGs) that encode enzymes catalyzing the key steps of phenylpropanoid pathway. Chromatin immunoprecipitation, Y1H, and Dual-Luc assays further clarified that NtERF13a could directly bind to the fragments containing GCC box or DRE element in the promoters of NtHCT, NtF3'H, and NtANS genes to induce the transcription of these genes. Knock-out of NtHCT, NtF3'H, or NtANS in the NtERF13a-OE background significantly repressed the increase of phenylpropanoid compound contents caused by over-expression of NtERF13a, indicating that the promotion of NtERF13a on the phenylpropanoid compound contents depends on the activity of NtHCT, NtF3'H, and NtANS. Our study demonstrated new roles of NtERF13a in promoting plant resistance to abiotic stresses, and provided a promising target for modulating the biosynthesis of phenylpropanoid compounds in tobacco.
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Affiliation(s)
- Zhong Wang
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Jinchu Yang
- Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou 450000, China
| | - Qian Gao
- Yunnan Key Laboratory of Tobacco Chemistry, R&D Center of China Tobacco Yunnan Industrial Co. Ltd., Kunming 650202, China
| | - Shun He
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Yongming Xu
- Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou 450000, China
| | - Zhaopeng Luo
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Pingping Liu
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Mingzhu Wu
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Xin Xu
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Lanxin Ma
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Zhan Zhang
- Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou 450000, China
| | - Yongfeng Yang
- Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou 450000, China.
| | - Jun Yang
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China.
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19
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Sharma P, Wajid MA, Fayaz M, Bhat S, Nautiyal AK, Jeet S, Yadav AK, Singh D, Shankar R, Gairola S, Misra P. Morphological, phytochemical, and transcriptome analyses provide insights into the biosynthesis of monoterpenes in Monarda citriodora. PLANTA 2023; 258:49. [PMID: 37480390 DOI: 10.1007/s00425-023-04207-y] [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: 05/18/2023] [Accepted: 07/13/2023] [Indexed: 07/24/2023]
Abstract
MAIN CONCLUSION Morphological, phytochemical, and transcriptome analyses revealed candidate genes involved in the biosynthesis of volatile monoterpenes and development of glandular trichomes in Monarda citriodora. Monarda citriodora Cerv. ex Lag. is a valuable aromatic plant due to the presence of monoterpenes as major constituents in its essential oil (EO). Thus, it is of sheer importance to gain knowledge about the site of the biosynthesis of these terpenoid compounds in M. citriodora, as well as the genes involved in their biosynthesis. In this study, we studied different types of trichomes and their relative densities in three different developmental stages of leaves, early stage of leaf development (L1), mid-stage of leaf development (L2), and later stage of leaf development (L3) and the histochemistry of trichomes for the presence of lipid and terpenoid compounds. Further, the phytochemical analysis of this plant through GC-MS indicated a higher content of monoterpenes (thymol, thymoquinone, γ-terpinene, p-cymene, and carvacrol) in the L1 stage with a substantial decrease in the L3 stage of leaf development. This considerable decrease in the content of monoterpenes was attributed to the decrease in the trichome density from L1 to L3. Further, we developed a de novo transcriptome assembly by carrying out RNA sequencing of different plant parts of M. citriodora. The transcriptome data revealed several putative unigenes involved in the biosynthesis of specialized terpenoid compounds, as well as regulatory genes involved in glandular trichome development. The data generated in the present study build a strong foundation for further improvement of M. citriodora, in terms of quantity and quality of its essential oil, through genetic engineering.
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Affiliation(s)
- Priyanka Sharma
- Plant Sciences and Agrotechnology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Mir Abdul Wajid
- Plant Sciences and Agrotechnology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Mohd Fayaz
- Plant Sciences and Agrotechnology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sheetal Bhat
- Plant Sciences and Agrotechnology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Abhishek Kumar Nautiyal
- Plant Sciences and Agrotechnology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
| | - Sabha Jeet
- Plant Sciences and Agrotechnology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
| | - Arvind Kumar Yadav
- Quality Management and Instrumentation Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
| | - Deepika Singh
- Quality Management and Instrumentation Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
| | - Ravi Shankar
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
| | - Sumeet Gairola
- Plant Sciences and Agrotechnology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Prashant Misra
- Plant Sciences and Agrotechnology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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20
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Fang S, Qiu S, Chen K, Lv Z, Chen W. The transcription factors SbMYB45 and SbMYB86.1 regulate flavone biosynthesis in Scutellaria baicalensis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 200:107794. [PMID: 37257409 DOI: 10.1016/j.plaphy.2023.107794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 05/20/2023] [Accepted: 05/22/2023] [Indexed: 06/02/2023]
Abstract
Scutellaria baicalensis Georgi is an important Chinese medicinal plant that is rich in the flavones baicalin, wogonoside, and wogonin, providing it with anti-cancer, anti-inflammatory, and antibacterial properties. However, although the biosynthetic pathways of baicalin and its derivates have been elucidated, the regulation of flavone biosynthesis in S. baicalensis is poorly understood. Here, we found that the contents of baicalin and its derivates increased and that baicalin biosynthetic pathway genes were induced in response to light, and baicalin and baicalein are not exclusively produced in the roots of S. baicalensis. Based on the fact that MYB transcription factors are known to play important roles in flavone biosynthesis, we identified SbMYB45 and SbMYB86.1 in S. baicalensis and determined that they bind to the promoter of the flavone biosynthesis gene SbCHI to enhance its transcription. Moreover, overexpressing SbMYB45 and SbMYB86.1 enhanced the accumulation of baicalin in S. baicalensis leaves. We demonstrate that SbMYB45 and SbMYB86.1 bind to the cis-acting element MBSII in the promoter of CHI to redundantly induce its expression upon light exposure. These findings indicate that SbMYB45 and SbMYB86.1 transcriptionally activate SbCHI in response to light and enhance flavone contents in S. baicalensis.
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Affiliation(s)
- Shiyuan Fang
- Research and Development Center of Chinese Medicine Resources and Biotechnology, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; Institute of Chinese Materia Madica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Shi Qiu
- Research and Development Center of Chinese Medicine Resources and Biotechnology, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Kaixian Chen
- Institute of Chinese Materia Madica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Zongyou Lv
- Research and Development Center of Chinese Medicine Resources and Biotechnology, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Wansheng Chen
- Research and Development Center of Chinese Medicine Resources and Biotechnology, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; Department of Pharmacy, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China.
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21
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Zhao Y, Wang M, Chen Y, Gao M, Wu L, Wang Y. LcERF134 increases the production of monoterpenes by activating the terpene biosynthesis pathway in Litsea cubeba. Int J Biol Macromol 2023; 232:123378. [PMID: 36716839 DOI: 10.1016/j.ijbiomac.2023.123378] [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: 09/29/2022] [Revised: 12/30/2022] [Accepted: 01/13/2023] [Indexed: 01/28/2023]
Abstract
Litsea cubeba, an aromatic species of the Lauraceae family, produces a diverse array of monoterpenes. The biosynthesis of monoterpenes is regulated by transcriptional factors (TFs), such as APETALA2/ethylene response factor (AP2/ERF). However, the regulatory mechanisms that control the AP2/ERF gene responsible for the biosynthesis of monoterpenes in L. cubeba have yet to be elucidated. Here, we identified an AP2/ERF gene, LcERF134, as an activator for the accumulation of citral and other monoterpenes. The expression level of LcERF134 was consistent with terpene synthase LcTPS42 in the pericarp. The transient overexpression of LcERF134 significantly increased monoterpene production in L. cubeba as well as the expression of rate-limiting genes involved in the monoterpene biosynthesis pathway. Furthermore, yeast one-hybrid, dual-luciferase and electrophoretic mobility shift assays demonstrated that LcERF134 activated the monoterpene biosynthesis pathway by directly binding to the GCC-box elements of the LcTPS42 and LcGPPS.SSU1 promoters. However, the overexpression of LcERF134 in tomatoes had no impact on the synthesis of monoterpenes, thus indicating that LcERF134 is a species-specific TF. Our research demonstrated that LcERF134 significantly increased the biosynthesis of monoterpenes by inducing the expression of LcTPS42 and LcGPPS.SSU1, thus offering insight into how to enhance the flavor of L. cubeba essential oil.
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Affiliation(s)
- Yunxiao Zhao
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, Zhejiang Province, China
| | - Minyan Wang
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, Zhejiang Province, China
| | - Yicun Chen
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, Zhejiang Province, China
| | - Ming Gao
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, Zhejiang Province, China
| | - Liwen Wu
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, Zhejiang Province, China
| | - Yangdong Wang
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, Zhejiang Province, China.
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22
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Chen S, Li X, Liu Y, Chen J, Ma J, Chen L. Identification of QTL controlling volatile terpene contents in tea plant ( Camellia sinensis) using a high-aroma 'Huangdan' x 'Jinxuan' F 1 population. FRONTIERS IN PLANT SCIENCE 2023; 14:1130582. [PMID: 37063218 PMCID: PMC10090551 DOI: 10.3389/fpls.2023.1130582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 03/06/2023] [Indexed: 06/19/2023]
Abstract
Aroma is an important factor affecting the character and quality of tea. The improvement of aroma trait is a crucial research direction of tea plant breeding. Volatile terpenes, as the major contributors to the floral odors of tea products, also play critical roles in the defense responses of plants to multiple stresses. However, previous studies have largely focused on the aroma formation during the manufacture of tea or the comparison of raw tea samples. The mechanisms causing different aroma profiles between tea cultivars have remained underexplored. In the current study, a high-density genetic linkage map of tea plant was constructed based on an F1 population of 'Huangdan' × 'Jinxuan' using genotyping by sequencing. This linkage map covered 1754.57 cM and contained 15 linkage groups with a low inter-marker distance of 0.47 cM. A total of 42 QTLs associated with eight monoterpene contents and 12 QTLs associated with four sesquiterpenes contents were identified with the average PVE of 12.6% and 11.7% respectively. Furthermore, six candidate genes related to volatile terpene contents were found in QTL cluster on chromosome 5 by RNA-seq analysis. This work will enrich our understanding of the molecular mechanism of volatile terpene biosynthesis and provide a theoretical basis for tea plant breeding programs for aroma quality improvement.
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Affiliation(s)
| | | | | | | | | | - Liang Chen
- *Correspondence: Jianqiang Ma, ; Liang Chen,
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23
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Identification and Characterization of Transcription Factors Involved in Geraniol Biosynthesis in Rosa chinensis. Int J Mol Sci 2022; 23:ijms232314684. [PMID: 36499007 PMCID: PMC9739587 DOI: 10.3390/ijms232314684] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/18/2022] [Accepted: 11/22/2022] [Indexed: 11/27/2022] Open
Abstract
Fragrance is an important characteristic of rose flowers and is largely determined by the terpenes. Rose has a unique NUDX1 (NUDIX HYDROLASES 1)-dependent monoterpene geraniol biosynthesis pathway, but little is known about its transcriptional regulation. In this study, we characterized two China rose (Rosa chinensis) materials from the 'Old Blush' variety with contrasting aromas. We profiled the volatile metabolome of both materials, and the results revealed that geraniol was the main component that distinguishes the aroma of these two materials. We performed a comparative transcriptome analysis of the two rose materials, from which we identified the hydrolase RcNUDX1 as a key factor affecting geraniol content, as well as 17 transcription factor genes co-expressed with RcNUDX1. We also determined that the transcription factor RcWRKY70 binds to four W-box motifs in the promoter of RcNUDX1, repressing RcNUDX1 expression, based on yeast one-hybrid and transient dual-luciferase assays. These results provide important information concerning the transcriptional regulatory framework underlying the control of geraniol production in rose.
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24
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Yang C, Wu P, Cao Y, Yang B, Liu L, Chen J, Zhuo R, Yao X. Overexpression of dihydroflavonol 4-reductase ( CoDFR) boosts flavonoid production involved in the anthracnose resistance. FRONTIERS IN PLANT SCIENCE 2022; 13:1038467. [PMID: 36438122 PMCID: PMC9682034 DOI: 10.3389/fpls.2022.1038467] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
The outbreak of anthracnose caused by Colletotrichum spp. represents a devastating epidemic that severely affects oil tea (Camellia oleifera) production in China. However, the unknown resistance mechanism to anthracnose in C. oleifera has impeded the progress of breeding disease-resistant varieties. In this study, we investigated the physiological responses of resistant and susceptible lines during C. gloeosporioides infection. Our results showed that the accumulation of malondialdehyde (MDA), catalase (CAT), superoxide dismutase (SOD), and peroxidase (POD) in both disease-resistant and susceptible lines increased by C. gloeosporioides infection. Also, disease-resistant lines exhibited lower MDA, but higher POD, SOD, and CAT activities compared to susceptible lines. The accumulation of flavonoids in both resistant and susceptible C. oleifera leaves increased following C. gloeosporioides infection, and the increase was greater in resistant lines. Further, we identified and functionally characterized the dihydroflavonol 4-reductase (CoDFR) from the resistant C. oleifera line. We showed that the full-length coding sequence (CDS) of CoDFR is 1044 bp encoding 347 amino acids. The overexpression of CoDFR in tobacco altered the expression of flavonoid biosynthetic genes, resulting in an increased flavonoid content in leaves. CoDFR transgenic tobacco plants exhibited increased anthracnose resistance. Furthermore, the transgenic plants had higher salicylic acid content. These findings offer potential insights into the pivotal role of CoDFR involved in flavonoid-mediated defense mechanisms during anthracnose invasion in resistant C. oleifera.
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Affiliation(s)
| | | | | | | | | | | | | | - Xiaohua Yao
- *Correspondence: Renying Zhuo, ; Xiaohua Yao,
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25
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Yang J, Chen Y, Gao M, Wu L, Xiong S, Wang S, Gao J, Zhao Y, Wang Y. Comprehensive identification of bHLH transcription factors in Litsea cubeba reveals candidate gene involved in the monoterpene biosynthesis pathway. FRONTIERS IN PLANT SCIENCE 2022; 13:1081335. [PMID: 36618662 PMCID: PMC9811127 DOI: 10.3389/fpls.2022.1081335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 11/21/2022] [Indexed: 05/13/2023]
Abstract
Litsea cubeba (Lour.) Person, an economically important aromatic plant producing essential oils, has lemon-like fragrance and 96.44-98.44% monoterpene contents. bHLH transcription factor plays an important role in plant secondary metabolism and terpene biosynthesis. In this study, we used bioinformatics to identify bHLH transcription factors in L. cubeba, 173 bHLH genes were identified from L. cubeba and divided these into 26 subfamilies based on phylogenetic analysis. The majority of bHLHs in each subfamily shared comparable structures and motifs. While LcbHLHs were unevenly distributed across 12 chromosomes, 10 tandem repeats were discovered. Expression profiles of bHLH genes in different tissues demonstrated that LcbHLH78 is a potential candidate gene for regulating monoterpene biosynthesis. LcbHLH78 and the terpene synthase LcTPS42 showed comparable expression patterns in various tissues and fruit development stages of L. cubeba. Subcellular localization analysis revealed that LcbHLH78 protein localizes to the nucleus, consistent with a transcription factor function. Importantly, transient overexpression of LcbHLH78 increased geraniol and linalol contents. Our research demonstrates that LcbHLH78 enhances terpenoid biosynthesis. This finding will be beneficial for improving the quality of L. cubeba and provides helpful insights for further research into the control mechanism of LcbHLH genes over terpenoid biosynthesis.
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Affiliation(s)
- Jiahui Yang
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, HangZhou, Zhejiang, China
| | - Yicun Chen
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, HangZhou, Zhejiang, China
| | - Ming Gao
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, HangZhou, Zhejiang, China
| | - Liwen Wu
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, HangZhou, Zhejiang, China
| | - Shifa Xiong
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, HangZhou, Zhejiang, China
| | - Siqi Wang
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, HangZhou, Zhejiang, China
| | - Jing Gao
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, HangZhou, Zhejiang, China
| | - Yunxiao Zhao
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, HangZhou, Zhejiang, China
- *Correspondence: Yunxiao Zhao, ; Yangdong Wang,
| | - Yangdong Wang
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, HangZhou, Zhejiang, China
- *Correspondence: Yunxiao Zhao, ; Yangdong Wang,
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