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Li Q, Wang J, Yin Z, Pan Y, Mao W, Peng L, Guo X, Li B, Leng P. SlPP2C2 interacts with FZY/SAUR and regulates tomato development via signaling crosstalk of ABA and auxin. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:1073-1090. [PMID: 38795008 DOI: 10.1111/tpj.16818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 04/28/2024] [Accepted: 05/07/2024] [Indexed: 05/27/2024]
Abstract
Abscisic acid (ABA) signaling interacts frequently with auxin signaling when it regulates plant development, affecting multiple physiological processes; however, to the best of our knowledge, their interaction during tomato development has not yet been reported. Here, we found that type 2C protein phosphatase (SlPP2C2) interacts with both flavin monooxygenase FZY, an indole-3-acetic acid (IAA) biosynthetic enzyme, and small auxin upregulated RNA (SAUR) of an IAA signaling protein and regulates their activity, thereby affecting the expression of IAA-responsive genes. The expression level of SlPP2C2 was increased by exogenous ABA, IAA, NaCl, or dehydration treatment of fruits, leaves, and seeds, and it decreased in imbibed seeds. Manipulating SlPP2C2 with overexpression, RNA interference, and CRISPR/Cas9-mediated genome editing resulted in pleiotropic changes, such as morphological changes in leaves, stem trichomes, floral organs and fruits, accompanied by alterations in IAA and ABA levels. Furthermore, the RNA-seq analysis indicated that SlPP2C2 regulates the expression of auxin-/IAA-responsive genes in different tissues of tomato. The results demonstrate that SlPP2C2-mediated ABA signaling regulates the development of both vegetative and reproductive organs via interaction with FZY/SAUR, which integrates the cross-talk of ABA and auxin signals during development and affects the expressions of development-related genes in tomato.
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Affiliation(s)
- Qian Li
- College of Horticulture, China Agricultural University, Beijing, 100193, P. R. China
| | - Juan Wang
- Yunnan Key Laboratory of Potato Biology, The AGISCAAS-YNNU Joint Academy of Potato Sciences, Yunnan Normal University, Kunming, 650000, P. R. China
| | - Zhaonan Yin
- College of Horticulture, China Agricultural University, Beijing, 100193, P. R. China
| | - Yingfang Pan
- College of Horticulture, China Agricultural University, Beijing, 100193, P. R. China
| | - Wei Mao
- College of Horticulture, China Agricultural University, Beijing, 100193, P. R. China
| | - Liangyu Peng
- College of Horticulture, China Agricultural University, Beijing, 100193, P. R. China
| | - Xinyue Guo
- College of Horticulture, China Agricultural University, Beijing, 100193, P. R. China
| | - Bao Li
- College of Horticulture, China Agricultural University, Beijing, 100193, P. R. China
| | - Ping Leng
- College of Horticulture, China Agricultural University, Beijing, 100193, P. R. China
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Chen M, Li Z, He X, Zhang Z, Wang D, Cui L, Xie M, Zhao Z, Sun Q, Wang D, Dai J, Gong D. Comparative transcriptome analysis reveals genes involved in trichome development and metabolism in tobacco. BMC PLANT BIOLOGY 2024; 24:541. [PMID: 38872084 DOI: 10.1186/s12870-024-05265-4] [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: 03/13/2024] [Accepted: 06/07/2024] [Indexed: 06/15/2024]
Abstract
BACKGROUND The glandular trichomes of tobacco (Nicotiana tabacum) can efficiently produce secondary metabolites. They act as natural bioreactors, and their natural products function to protect plants against insect-pests and pathogens and are also components of industrial chemicals. To clarify the molecular mechanisms of tobacco glandular trichome development and secondary metabolic regulation, glandular trichomes and glandless trichomes, as well as other different developmental tissues, were used for RNA sequencing and analysis. RESULTS By comparing glandless and glandular trichomes with other tissues, we obtained differentially expressed genes. They were obviously enriched in KEGG pathways, such as cutin, suberine, and wax biosynthesis, flavonoid and isoflavonoid biosynthesis, terpenoid biosynthesis, and plant-pathogen interaction. In particular, the expression levels of genes related to the terpenoid, flavonoid, and wax biosynthesis pathway mainly showed down-regulation in glandless trichomes, implying that they lack the capability to synthesize certain exudate compounds. Among the differentially expressed genes, 234 transcription factors were found, including AP2-ERFs, MYBs, bHLHs, WRKYs, Homeoboxes (HD-ZIP), and C2H2-ZFs. These transcription factor and genes that highly expressed in trichomes or specially expressed in GT or GLT. Following the overexpression of R2R3-MYB transcription factor Nitab4.5_0011760g0030.1 in tobacco, an increase in the number of branched glandular trichomes was observed. CONCLUSIONS Our data provide comprehensive gene expression information at the transcriptional level and an understanding of the regulatory pathways involved in glandular trichome development and secondary metabolism.
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Affiliation(s)
- Mingli Chen
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Zhiyuan Li
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Xinxi He
- China Tobacco Hunan Industry Co., Ltd, Changsha, China
| | - Zhe Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
- Graduate School of the Chinese Academy of Agricultural Sciences, Beijing, China
| | - Dong Wang
- China Tobacco Hunan Industry Co., Ltd, Changsha, China
| | - Luying Cui
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Minmin Xie
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Zeyu Zhao
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Quan Sun
- College of Bioinformation, Chongqing Key Laboratory of Big Data for Bio Intelligence, Chongqing University of Posts and Telecommunications, Chongqing, China
| | - Dahai Wang
- Shandong Weifang Tobacco Co., Ltd, Weifang, China
| | - Jiameng Dai
- Yunnan Key Laboratory of Tobacco Chemistry, China , Tobacco Yunnan Industrial Co., Ltd, Kunming, China.
| | - Daping Gong
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China.
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Chen S, Zhang L, Ma Q, Chen M, Cao X, Zhao S, Zhang X. Jasmonate ZIM Domain Protein ( JAZ) Gene SLJAZ15 Increases Resistance to Orobanche aegyptiaca in Tomato. PLANTS (BASEL, SWITZERLAND) 2024; 13:1493. [PMID: 38891302 PMCID: PMC11174562 DOI: 10.3390/plants13111493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024]
Abstract
Orobanche aegyptiaca Pers. is a holoparasitic plant that severely reduces tomato (Solanum lycopersicum L.) production in China. However, there is a lack of effective control methods and few known sources of genetic resistance. In this study, we focused on key genes in the JAZ family, comparing the JAZ family in Arabidopsis thaliana (L. Heynh.) to the tomato genome. After identifying the JAZ family members in S. lycopersicum, we performed chromosomal localization and linear analysis with phylogenetic relationship analysis of the JAZ family. We also analyzed the gene structure of the JAZ gene family members in tomato and the homology of the JAZ genes among the different species to study their relatedness. The key genes for O. aegyptiaca resistance were identified using VIGS (virus-induced gene silencing), and the parasitization rate of silenced tomato plants against O. aegyptiaca increased by 47.23-91.13%. The genes were localized in the nucleus by subcellular localization. Heterologous overexpression in A. thaliana showed that the key gene had a strong effect on the parasitization process of O. aegyptiaca, and the overexpression of the key gene reduced the parasitization rate of O. aegyptiaca 1.69-fold. Finally, it was found that the SLJAZ15 gene can positively regulate the hormone content in tomato plants and affect plant growth and development, further elucidating the function of this gene.
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Affiliation(s)
| | | | | | | | | | - Sifeng Zhao
- Key Laboratory at the Universities of Xinjiang Uygur Autonomous Region for Oasis Agricultural Pest Management and Plant Protection Resource Utilization, Agriculture College, Shihezi University, Shihezi 832003, China; (S.C.); (L.Z.); (Q.M.); (M.C.); (X.C.)
| | - Xuekun Zhang
- Key Laboratory at the Universities of Xinjiang Uygur Autonomous Region for Oasis Agricultural Pest Management and Plant Protection Resource Utilization, Agriculture College, Shihezi University, Shihezi 832003, China; (S.C.); (L.Z.); (Q.M.); (M.C.); (X.C.)
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Guan Y, Zhang Q, Li M, Zhai J, Wu S, Ahmad S, Lan S, Peng D, Liu ZJ. Genome-Wide Identification and Expression Pattern Analysis of TIFY Family Genes Reveal Their Potential Roles in Phalaenopsis aphrodite Flower Opening. Int J Mol Sci 2024; 25:5422. [PMID: 38791460 PMCID: PMC11121579 DOI: 10.3390/ijms25105422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/26/2024] Open
Abstract
The TIFY gene family (formerly known as the zinc finger proteins expressed in inflorescence meristem (ZIM) family) not only functions in plant defense responses but also are widely involved in regulating plant growth and development. However, the identification and functional analysis of TIFY proteins remain unexplored in Orchidaceae. Here, we identified 19 putative TIFY genes in the Phalaenopsis aphrodite genome. The phylogenetic tree classified them into four subfamilies: 14 members from JAZ, 3 members from ZML, and 1 each from PPD and TIFY. Sequence analysis revealed that all Phalaenopsis TIFY proteins contained a TIFY domain. Exon-intron analysis showed that the intron number and length of Phalaenopsis TIFY genes varied, whereas the same subfamily and subgroup genes had similar exon or intron numbers and distributions. The most abundant cis-elements in the promoter regions of the 19 TIFY genes were associated with light responsiveness, followed by MeJA and ABA, indicating their potential regulation by light and phytohormones. The 13 candidate TIFY genes screened from the transcriptome data exhibited two types of expression trends, suggesting their different roles in cell proliferation and cell expansion of floral organ growth during Phalaenopsis flower opening. Overall, this study serves as a background for investigating the underlying roles of TIFY genes in floral organ growth in Phalaenopsis.
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Affiliation(s)
| | | | | | | | | | | | | | - Donghui Peng
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Shangxiadian Road No. 15, Cangshan District, Fuzhou 350002, China; (Y.G.); (Q.Z.); (M.L.); (J.Z.); (S.W.); (S.A.); (S.L.)
| | - Zhong-Jian Liu
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Shangxiadian Road No. 15, Cangshan District, Fuzhou 350002, China; (Y.G.); (Q.Z.); (M.L.); (J.Z.); (S.W.); (S.A.); (S.L.)
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Li X, Wen K, Zhu L, Chen C, Yin T, Yang X, Zhao K, Zi Y, Zhang H, Luo X, Zhang H. Genome-wide identification and expression analysis of the Eriobotrya japonica TIFY gene family reveals its functional diversity under abiotic stress conditions. BMC Genomics 2024; 25:468. [PMID: 38745142 PMCID: PMC11092017 DOI: 10.1186/s12864-024-10375-2] [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: 02/06/2024] [Accepted: 05/03/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Plant-specific TIFY proteins are widely found in terrestrial plants and play important roles in plant adversity responses. Although the genome of loquat at the chromosome level has been published, studies on the TIFY family in loquat are lacking. Therefore, the EjTIFY gene family was bioinformatically analyzed by constructing a phylogenetic tree, chromosomal localization, gene structure, and adversity expression profiling in this study. RESULTS Twenty-six EjTIFY genes were identified and categorized into four subfamilies (ZML, JAZ, PPD, and TIFY) based on their structural domains. Twenty-four EjTIFY genes were irregularly distributed on 11 of the 17 chromosomes, and the remaining two genes were distributed in fragments. We identified 15 covariate TIFY gene pairs in the loquat genome, 13 of which were involved in large-scale interchromosomal segmental duplication events, and two of which were involved in tandem duplication events. Many abiotic stress cis-elements were widely present in the promoter region. Analysis of the Ka/Ks ratio showed that the paralogous homologs of the EjTIFY family were mainly subjected to purifying selection. Analysis of the RNA-seq data revealed that a total of five differentially expressed genes (DEGs) were expressed in the shoots under gibberellin treatment, whereas only one gene was significantly differentially expressed in the leaves; under both low-temperature and high-temperature stresses, there were significantly differentially expressed genes, and the EjJAZ15 gene was significantly upregulated under both low- and high-temperature stress. RNA-seq and qRT-PCR expression analysis under salt stress conditions revealed that EjJAZ2, EjJAZ4, and EjJAZ9 responded to salt stress in loquat plants, which promoted resistance to salt stress through the JA pathway. The response model of the TIFY genes in the jasmonic acid pathway under salt stress in loquat was systematically summarized. CONCLUSIONS These results provide a theoretical basis for exploring the characteristics and functions of additional EjTIFY genes in the future. This study also provides a theoretical basis for further research on breeding for salt stress resistance in loquat. RT-qPCR analysis revealed that the expression of one of the three EjTIFY genes increased and the expression of two decreased under salt stress conditions, suggesting that EjTIFY exhibited different expression patterns under salt stress conditions.
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Affiliation(s)
- Xulin Li
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, 650224, China
| | - Ke Wen
- Key Laboratory of Biodiversity Conservation in Southwest China, National Forest and Grassland Administration, Southwest Forestry University, Kunming, 650224, China
| | - Ling Zhu
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, 650224, China
| | - Chaoying Chen
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, 650224, China
| | - Tuo Yin
- Key Laboratory of Biodiversity Conservation in Southwest China, National Forest and Grassland Administration, Southwest Forestry University, Kunming, 650224, China
| | - Xiuyao Yang
- Key Laboratory of Biodiversity Conservation in Southwest China, National Forest and Grassland Administration, Southwest Forestry University, Kunming, 650224, China
| | - Ke Zhao
- Key Laboratory of Biodiversity Conservation in Southwest China, National Forest and Grassland Administration, Southwest Forestry University, Kunming, 650224, China
| | - Yinqiang Zi
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, 650224, China
| | - Huiyun Zhang
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agriculture Sciences, Baoshan, 678000, China.
| | - Xinping Luo
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agriculture Sciences, Baoshan, 678000, China.
| | - Hanyao Zhang
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, 650224, China.
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Li G, Manzoor MA, Chen R, Zhang Y, Song C. Genome-wide identification and expression analysis of TIFY genes under MeJA, cold and PEG-induced drought stress treatment in Dendrobium huoshanense. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2024; 30:527-542. [PMID: 38737319 PMCID: PMC11087441 DOI: 10.1007/s12298-024-01442-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 03/17/2024] [Accepted: 03/19/2024] [Indexed: 05/14/2024]
Abstract
The TIFY family consists of plant-specific genes that regulates multiple plant functions, including developmental and defense responses. Here, we performed a comprehensive genomic analysis of TIFY genes in Dendrobium huoshanense. Our analysis encompassed their phylogenetic relationships, gene structures, chromosomal distributions, promoter regions, and patterns of collinearity. A total of 16 DhTIFY genes were identified, and classified into distinct clusters named JAZ, PPD, ZIM, and TIFY based on their phylogenetic relationship. These DhTIFYs exhibited an uneven distribution across 7 chromosomes. The expansion of the DhTIFY gene family appears to have been significantly influenced by whole-genome and segmental duplication events. The ratio of non-synonymous to synonymous substitutions (Ka/Ks) implies that the purifying selection has been predominant, maintaining a constrained functional diversification after duplication events. Gene structure analysis indicated that DhTIFYs exhibited significant structural variation, particularly in terms of gene organization and intron numbers. Moreover, numerous cis-acting elements related to hormone signaling, developmental processes, and stress responses were identified within the promoter regions. Subsequently, qRT-PCR experiments demonstrated that the expression of DhTIFYs is modulated in response to MeJA (Methyl jasmonate), cold, and drought treatment. Collectively, these results enhance our understanding of the functional dynamics of TIFY genes in D. huoshanense and may pinpoint potential candidates for detailed examination of the biological roles of TIFY genes. Supplementary Information The online version contains supplementary material available at 10.1007/s12298-024-01442-9.
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Affiliation(s)
- Guohui Li
- Anhui Engineering Research Center for Eco-Agriculture of Traditional Chinese Medicine, Anhui Provincial Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, 237012 China
| | - Muhammad Aamir Manzoor
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Rui Chen
- Anhui Engineering Research Center for Eco-Agriculture of Traditional Chinese Medicine, Anhui Provincial Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, 237012 China
| | - Yingyu Zhang
- Henan Key Laboratory of Rare Diseases, Endocrinology and Metabolism Center, The First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, 471003 China
| | - Cheng Song
- Anhui Engineering Research Center for Eco-Agriculture of Traditional Chinese Medicine, Anhui Provincial Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, 237012 China
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Xie Z, Mi Y, Kong L, Gao M, Chen S, Chen W, Meng X, Sun W, Chen S, Xu Z. Cannabis sativa: origin and history, glandular trichome development, and cannabinoid biosynthesis. HORTICULTURE RESEARCH 2023; 10:uhad150. [PMID: 37691962 PMCID: PMC10485653 DOI: 10.1093/hr/uhad150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 07/18/2023] [Indexed: 09/12/2023]
Abstract
Is Cannabis a boon or bane? Cannabis sativa has long been a versatile crop for fiber extraction (industrial hemp), traditional Chinese medicine (hemp seeds), and recreational drugs (marijuana). Cannabis faced global prohibition in the twentieth century because of the psychoactive properties of ∆9-tetrahydrocannabinol; however, recently, the perspective has changed with the recognition of additional therapeutic values, particularly the pharmacological potential of cannabidiol. A comprehensive understanding of the underlying mechanism of cannabinoid biosynthesis is necessary to cultivate and promote globally the medicinal application of Cannabis resources. Here, we comprehensively review the historical usage of Cannabis, biosynthesis of trichome-specific cannabinoids, regulatory network of trichome development, and synthetic biology of cannabinoids. This review provides valuable insights into the efficient biosynthesis and green production of cannabinoids, and the development and utilization of novel Cannabis varieties.
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Affiliation(s)
- Ziyan Xie
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Science, Northeast Forestry University, Harbin 150040, China
| | - Yaolei Mi
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Science, Northeast Forestry University, Harbin 150040, China
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Lingzhe Kong
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Science, Northeast Forestry University, Harbin 150040, China
| | - Maolun Gao
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Science, Northeast Forestry University, Harbin 150040, China
| | - Shanshan Chen
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Weiqiang Chen
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Xiangxiao Meng
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Wei Sun
- College of Life Science, Northeast Forestry University, Harbin 150040, China
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Shilin Chen
- College of Life Science, Northeast Forestry University, Harbin 150040, China
- Institute of Herbgenomics, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Zhichao Xu
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Science, Northeast Forestry University, Harbin 150040, China
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Dong Y, Li S, Wu H, Gao Y, Feng Z, Zhao X, Shan L, Zhang Z, Ren H, Liu X. Advances in understanding epigenetic regulation of plant trichome development: a comprehensive review. HORTICULTURE RESEARCH 2023; 10:uhad145. [PMID: 37691965 PMCID: PMC10483894 DOI: 10.1093/hr/uhad145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 07/14/2023] [Indexed: 09/12/2023]
Abstract
Plant growth and development are controlled by a complex gene regulatory network, which is currently a focal point of research. It has been established that epigenetic factors play a crucial role in plant growth. Trichomes, specialized appendages that arise from epidermal cells, are of great significance in plant growth and development. As a model system for studying plant development, trichomes possess both commercial and research value. Epigenetic regulation has only recently been implicated in the development of trichomes in a limited number of studies, and microRNA-mediated post-transcriptional regulation appears to dominate in this context. In light of this, we have conducted a review that explores the interplay between epigenetic regulations and the formation of plant trichomes, building upon existing knowledge of hormones and transcription factors in trichome development. Through this review, we aim to deepen our understanding of the regulatory mechanisms underlying trichome formation and shed light on future avenues of research in the field of epigenetics as it pertains to epidermal hair growth.
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Affiliation(s)
- Yuming Dong
- College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Sen Li
- College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Haoying Wu
- College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Yiming Gao
- College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Zhongxuan Feng
- College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Xi Zhao
- College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Li Shan
- College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Zhongren Zhang
- College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Huazhong Ren
- College of Horticulture, China Agricultural University, Beijing 100193, China
- Sanya Institute of China Agricultural University, Sanya Hainan 572000, China
| | - Xingwang Liu
- College of Horticulture, China Agricultural University, Beijing 100193, China
- Sanya Institute of China Agricultural University, Sanya Hainan 572000, China
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Cheng Y, Liang C, Qiu Z, Zhou S, Liu J, Yang Y, Wang R, Yin J, Ma C, Cui Z, Song J, Li D. Jasmonic acid negatively regulates branch growth in pear. FRONTIERS IN PLANT SCIENCE 2023; 14:1105521. [PMID: 36824194 PMCID: PMC9941643 DOI: 10.3389/fpls.2023.1105521] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
The quality of seedlings is an important factor for development of the pear industry. A strong seedling with few branches and suitable internodes is ideal material as a rootstock for grafting and breeding. Several branching mutants of pear rootstocks were identified previously. In the present study, 'QAU-D03' (Pyrus communis L.) and it's mutants were used to explore the mechanism that affects branch formation by conducting phenotypic trait assessment, hormone content analysis, and transcriptome analysis. The mutant plant (MP) showed fewer branches, shorter 1-year-old shoots, and longer petiole length, compared to original plants (OP), i.e., wild type. Endogenous hormone analysis revealed that auxin, cytokinin, and jasmonic acid contents in the stem tips of MP were significantly higher than those of the original plants. In particular, the jasmonic acid content of the MP was 1.8 times higher than that of the original plants. Transcriptome analysis revealed that PcCOI1, which is a transcriptional regulatory gene downstream of the jasmonic acid signaling pathway, was expressed more highly in the MP than in the original plants, whereas the expression levels of PcJAZ and PcMYC were reduced in the MP compared with that of the original plants. In response to treatment with exogenous methyl jasmonate, the original plants phenotype was consistent with that of the MP in developing less branches. These results indicate that jasmonic acid negatively regulates branch growth of pear trees and that jasmonic acid downstream regulatory genes play a crucial role in regulating branching.
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Affiliation(s)
- Yuanyuan Cheng
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Chenglin Liang
- Haidu College, Qingdao Agricultural University, Laiyang, China
| | - Zhiyun Qiu
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Siqi Zhou
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Jianlong Liu
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Yingjie Yang
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Ran Wang
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Jie Yin
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Chunhui Ma
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Zhenhua Cui
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Jiankun Song
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Dingli Li
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
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Song H, Wu P, Lu X, Wang B, Song T, Lu Q, Li M, Xu X. Comparative physiological and transcriptomic analyses reveal the mechanisms of CO2 enrichment in promoting the growth and quality in Lactuca sativa. PLoS One 2023; 18:e0278159. [PMID: 36735719 PMCID: PMC9897578 DOI: 10.1371/journal.pone.0278159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 11/10/2022] [Indexed: 02/04/2023] Open
Abstract
The increase in the concentration of CO2 in the atmosphere has attracted widespread attention. To explore the effect of elevated CO2 on lettuce growth and better understand the mechanism of elevated CO2 in lettuce cultivation, 3 kinds of lettuce with 4 real leaves were selected and planted in a solar greenhouse. One week later, CO2 was applied from 8:00 a.m. to 10:00 a.m. on sunny days for 30 days. The results showed that the growth potential of lettuce was enhanced under CO2 enrichment. The content of vitamin C and chlorophyll in the three lettuce varieties increased, and the content of nitrate nitrogen decreased. The light saturation point and net photosynthetic rate of leaves increased, and the light compensation point decreased. Transcriptome analysis showed that there were 217 differentially expressed genes (DEGs) shared by the three varieties, among which 166 were upregulated, 44 were downregulated, and 7 DEGs were inconsistent in the three materials. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis showed that these DEGs involved mainly the ethylene signaling pathway, jasmonic acid signaling pathway, porphyrin and chlorophyll metabolism pathway, starch and sucrose metabolism pathway, etc. Forty-one DEGs in response to CO2 enrichment were screened out by Gene Ontology (GO) analysis, and the biological processes involved were consistent with KEGG analysis. which suggested that the growth and nutritional quality of lettuce could be improved by increasing the enzyme activity and gene expression levels of photosynthesis, hormone signaling and carbohydrate metabolism. The results laid a theoretical foundation for lettuce cultivation in solar greenhouses and the application of CO2 fertilization technology.
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Affiliation(s)
- Hongxia Song
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Peiqi Wu
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Xiaonan Lu
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Bei Wang
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Tianyue Song
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Qiang Lu
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Meilan Li
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Xiaoyong Xu
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
- Hainan Yazhou Bay Seed Lab, Sanya, Hainan, China
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11
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Chen Y, Kim P, Kong L, Wang X, Tan W, Liu X, Chen Y, Yang J, Chen B, Song Y, An Z, Min Phyon J, Zhang Y, Ding B, Kawabata S, Li Y, Wang Y. A dual-function transcription factor, SlJAF13, promotes anthocyanin biosynthesis in tomato. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:5559-5580. [PMID: 35552695 DOI: 10.1093/jxb/erac209] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 05/09/2022] [Indexed: 05/27/2023]
Abstract
Unlike modern tomato (Solanum lycopersicum) cultivars, cv. LA1996 harbors the dominant Aft allele, which is associated with anthocyanin synthesis in tomato fruit peel. However, the control of Aft anthocyanin biosynthesis remains unclear. Here, we used ethyl methanesulfonate-induced and CRISPR/Cas9-mediated mutation of LA1996 to show, respectively, that two class IIIf basic helix-loop-helix (bHLH) transcription factors, SlJAF13 and SlAN1, are involved in the control of anthocyanin synthesis. These transcription factors are key components of the MYB-bHLH-WD40 (MBW) complex, which positively regulates anthocyanin synthesis. Molecular and genetic analyses showed that SlJAF13 functions as an upstream activation factor of SlAN1 by binding directly to the G-Box motif of its promoter region. On the other hand, SlJAZ2, a JA signaling repressor, interferes with formation of the MBW complex to suppress anthocyanin synthesis by directly binding these two bHLH components. Unexpectedly, the transcript level of SlJAZ2 was in turn repressed in a SlJAF13-dependent manner. Mechanistically, SlJAF13 interacts with SlMYC2, inhibiting SlMYC2 activation of SlJAZ2 transcription, thus constituting a negative feedback loop governing anthocyanin accumulation. Taken together, our findings support a sophisticated regulatory network, in which SlJAF13 acts as an upstream dual-function regulator that fine tunes anthocyanin biosynthesis in tomato.
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Affiliation(s)
- Yunzhu Chen
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Pyol Kim
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Lingzhe Kong
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Xin Wang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Wei Tan
- Horticultural Sub-academy of Heilongjiang Academy of Agricultural Sciences, Harbin 150040, China
| | - Xin Liu
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Yuansen Chen
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Jianfei Yang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Bowei Chen
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Yuxin Song
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Zeyu An
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Jong Min Phyon
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Yang Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Bing Ding
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Saneyuki Kawabata
- Institute for Sustainable Agroecosystem Services, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Midoricho, Nishitokyo, Tokyo, 188-0002, Japan
| | - Yuhua Li
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Sciences, Northeast Forestry University, Harbin 150040, China
| | - Yu Wang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China
- College of Life Sciences, Northeast Forestry University, Harbin 150040, China
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12
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Cheng X, Pang F, Tian W, Tang X, Wu L, Hu X, Zhu H. Transcriptome analysis provides insights into the molecular mechanism of GhSAMDC 1 involving in rapid vegetative growth and early flowering in tobacco. Sci Rep 2022; 12:13612. [PMID: 35948667 PMCID: PMC9365820 DOI: 10.1038/s41598-022-18064-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 08/04/2022] [Indexed: 11/13/2022] Open
Abstract
In previous study, ectopic expression of GhSAMDC1 improved vegetative growth and early flowering in tobacco, which had been explained through changes of polyamine content, polyamines and flowering relate genes expression. To further disclose the transcript changes of ectopic expression of GhSAMDC1 in tobacco, the leaves from wild type and two transgenic lines at seedling (30 days old), bolting (60 days old) and flowering (90 days old) stages were performed for transcriptome analysis. Compared to wild type, a total of 938 differentially expressed genes (DEGs) were found to be up- or down-regulated in the two transgenic plants. GO and KEGG analysis revealed that tobacco of wild-type and transgenic lines were controlled by a complex gene network, which regulated multiple metabolic pathways. Phytohormone detection indicate GhSAMDC1 affect endogenous phytohormone content, ABA and JA content are remarkably increased in transgenic plants. Furthermore, transcript factor analysis indicated 18 transcript factor families, including stress response, development and flowering related transcript factor families, especially AP2-EREBP, WRKY, HSF and Tify are the most over-represented in those transcript factor families. In conclusion, transcriptome analysis provides insights into the molecular mechanism of GhSAMDC1 involving rapid vegetative growth and early flowering in tobacco.
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Affiliation(s)
- Xinqi Cheng
- College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang, 438000, Hubei, China.,Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Huanggang, 438000, Hubei, China
| | - Fangqin Pang
- College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang, 438000, Hubei, China.,Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Huanggang, 438000, Hubei, China
| | - Wengang Tian
- College of Agronomy, Shihezi University, Shihezi, 832000, Xinjiang, China
| | - Xinxin Tang
- College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang, 438000, Hubei, China.,Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Huanggang, 438000, Hubei, China
| | - Lan Wu
- College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang, 438000, Hubei, China.,Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Huanggang, 438000, Hubei, China
| | - Xiaoming Hu
- College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang, 438000, Hubei, China.,Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Huanggang, 438000, Hubei, China
| | - Huaguo Zhu
- College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang, 438000, Hubei, China. .,Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Huanggang, 438000, Hubei, China.
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13
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Yang Y, Zhao T, Xu X, Jiang J, Li J. Transcriptome Analysis to Explore the Cause of the Formation of Different Inflorescences in Tomato. Int J Mol Sci 2022; 23:ijms23158216. [PMID: 35897806 PMCID: PMC9368726 DOI: 10.3390/ijms23158216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 07/19/2022] [Accepted: 07/20/2022] [Indexed: 02/05/2023] Open
Abstract
The number of inflorescence branches is an important agronomic character of tomato. The meristem differentiation and development pattern of tomato inflorescence is complex and its regulation mechanism is very different from those of other model plants. Therefore, in order to explore the cause of tomato inflorescence branching, transcriptome analysis was conducted on two kinds of tomato inflorescences (single racemes and compound inflorescences). According to the transcriptome data analysis, there were many DEGs of tomato inflorescences at early, middle, and late stages. Then, GO and KEGG enrichments of DEGs were performed. DEGs are mainly enriched in metabolic pathways, biohormone signaling, and cell cycle pathways. According to previous studies, DEGs were mainly enriched in metabolic pathways, and FALSIFLORA (FA) and ANANTHA (AN) genes were the most notable of 41 DEGs related to inflorescence branching. This study not only provides a theoretical basis for understanding inflorescence branching, but also provides a new idea for the follow-up study of inflorescence.
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Han G, Li Y, Yang Z, Wang C, Zhang Y, Wang B. Molecular Mechanisms of Plant Trichome Development. FRONTIERS IN PLANT SCIENCE 2022; 13:910228. [PMID: 35720574 PMCID: PMC9198495 DOI: 10.3389/fpls.2022.910228] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/13/2022] [Indexed: 05/25/2023]
Abstract
Plant trichomes, protrusions formed from specialized aboveground epidermal cells, provide protection against various biotic and abiotic stresses. Trichomes can be unicellular, bicellular or multicellular, with multiple branches or no branches at all. Unicellular trichomes are generally not secretory, whereas multicellular trichomes include both secretory and non-secretory hairs. The secretory trichomes release secondary metabolites such as artemisinin, which is valuable as an antimalarial agent. Cotton trichomes, also known as cotton fibers, are an important natural product for the textile industry. In recent years, much progress has been made in unraveling the molecular mechanisms of trichome formation in Arabidopsis thaliana, Gossypium hirsutum, Oryza sativa, Cucumis sativus, Solanum lycopersicum, Nicotiana tabacum, and Artemisia annua. Here, we review current knowledge of the molecular mechanisms underlying fate determination and initiation, elongation, and maturation of unicellular, bicellular and multicellular trichomes in several representative plants. We emphasize the regulatory roles of plant hormones, transcription factors, the cell cycle and epigenetic modifications in different stages of trichome development. Finally, we identify the obstacles and key points for future research on plant trichome development, and speculated the development relationship between the salt glands of halophytes and the trichomes of non-halophytes, which provides a reference for future studying the development of plant epidermal cells.
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Affiliation(s)
- Guoliang Han
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Sciences, Shandong Normal University, Jinan, China
- Dongying Institute, Shandong Normal University, Dongying, China
| | - Yuxia Li
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Zongran Yang
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Chengfeng Wang
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Yuanyuan Zhang
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Baoshan Wang
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Sciences, Shandong Normal University, Jinan, China
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15
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Sun B, Shang L, Li Y, Zhang Q, Chu Z, He S, Yang W, Ding X. Ectopic Expression of OsJAZs Alters Plant Defense and Development. Int J Mol Sci 2022; 23:ijms23094581. [PMID: 35562972 PMCID: PMC9103030 DOI: 10.3390/ijms23094581] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/13/2022] [Accepted: 04/15/2022] [Indexed: 02/01/2023] Open
Abstract
A key step in jasmonic acid (JA) signaling is the ligand-dependent assembly of a coreceptor complex comprising the F-box protein COI1 and JAZ transcriptional repressors. The assembly of this receptor complex results in proteasome-mediated degradation of JAZ repressors, which in turn bind and repress MYC transcription factors. Many studies on JAZs have been performed in Arabidopsis thaliana, but the function of JAZs in rice is largely unknown. To systematically reveal the function of OsJAZs, in this study, we compared the various phenotypes resulting from 13 OsJAZs via ectopic expression in Arabidopsis thaliana and the phenotypes of 12 AtJAZs overexpression (OE) lines. Phylogenetic analysis showed that the 25 proteins could be divided into three major groups. Yeast two-hybrid (Y2H) assays revealed that most OsJAZ proteins could form homodimers or heterodimers. The statistical results showed that the phenotypes of the OsJAZ OE plants were quite different from those of AtJAZ OE plants in terms of plant growth, development, and immunity. As an example, compared with other JAZ OE plants, OsJAZ11 OE plants exhibited a JA-insensitive phenotype and enhanced resistance to Pst DC3000. The protein stability after JA treatment of OsJAZ11 emphasized the specific function of the protein. This study aimed to explore the commonalities and characteristics of different JAZ proteins functions from a genetic perspective, and to screen genes with disease resistance value. Overall, the results of this study provide insights for further functional analysis of rice JAZ family proteins.
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Affiliation(s)
- Baolong Sun
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (B.S.); (L.S.); (Y.L.); (Q.Z.)
| | - Luyue Shang
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (B.S.); (L.S.); (Y.L.); (Q.Z.)
| | - Yang Li
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (B.S.); (L.S.); (Y.L.); (Q.Z.)
| | - Qiang Zhang
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (B.S.); (L.S.); (Y.L.); (Q.Z.)
| | - Zhaohui Chu
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan 430072, China;
| | - Shengyang He
- Department of Biology, Duke University, Durham, NC 27708, USA;
| | - Wei Yang
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (B.S.); (L.S.); (Y.L.); (Q.Z.)
- Key Laboratory of Quality Improvement of Agricultural Products of Zhejiang Province, College of Modern Agricultural, Zhejiang A&F University, Hangzhou 311300, China
- Correspondence: (W.Y.); (X.D.)
| | - Xinhua Ding
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (B.S.); (L.S.); (Y.L.); (Q.Z.)
- Correspondence: (W.Y.); (X.D.)
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Jiang R, Yuan W, Yao W, Jin X, Wang X, Wang Y. A regulatory GhBPE-GhPRGL module maintains ray petal length in Gerbera hybrida. MOLECULAR HORTICULTURE 2022; 2:9. [PMID: 37789358 PMCID: PMC10515009 DOI: 10.1186/s43897-022-00030-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 03/08/2022] [Indexed: 10/05/2023]
Abstract
The molecular mechanism regulating petal length in flowers is not well understood. Here we used transient transformation assays to confirm that GhPRGL (proline-rich and GASA-like)-a GASA (gibberellic acid [GA] stimulated in Arabidopsis) family gene-promotes the elongation of ray petals in gerbera (Gerbera hybrida). Yeast one-hybrid screening assay identified a bHLH transcription factor of the jasmonic acid (JA) signaling pathway, here named GhBPE (BIGPETAL), which binds to the GhPRGL promoter and represses its expression, resulting in a phenotype of shortened ray petal length when GhBPE is overexpressed. Further, the joint response to JA and GA of GhBPE and GhPRGL, together with their complementary expression profiles in the early stage of petal growth, suggests a novel GhBPE-GhPRGL module that controls the size of ray petals. GhPRGL promotes ray petal elongation in its early stage especially, while GhBPE inhibits ray petal elongation particularly in the late stage by inhibiting the expression of GhPRGL. JA and GA operate in concert to regulate the expression of GhBPE and GhPRGL genes, providing a regulatory mechanism by which ray petals could grow to a fixed length in gerbera species.
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Affiliation(s)
- Rui Jiang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Weichao Yuan
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Wei Yao
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Xuefeng Jin
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Xiaojing Wang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Yaqin Wang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China.
- Guangdong Laboratory for Lingnan Modern Agricultural, Guangzhou, 510642, China.
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Li C, Xu M, Cai X, Han Z, Si J, Chen D. Jasmonate Signaling Pathway Modulates Plant Defense, Growth, and Their Trade-Offs. Int J Mol Sci 2022; 23:ijms23073945. [PMID: 35409303 PMCID: PMC8999811 DOI: 10.3390/ijms23073945] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/29/2022] [Accepted: 03/30/2022] [Indexed: 02/06/2023] Open
Abstract
Lipid-derived jasmonates (JAs) play a crucial role in a variety of plant development and defense mechanisms. In recent years, significant progress has been made toward understanding the JA signaling pathway. In this review, we discuss JA biosynthesis, as well as its core signaling pathway, termination mechanisms, and the evolutionary origin of JA signaling. JA regulates not only plant regeneration, reproductive growth, and vegetative growth but also the responses of plants to stresses, including pathogen as well as virus infection, herbivore attack, and abiotic stresses. We also focus on the JA signaling pathway, considering its crosstalk with the gibberellin (GA), auxin, and phytochrome signaling pathways for mediation of the trade-offs between growth and defense. In summary, JA signals regulate multiple outputs of plant defense and growth and act to balance growth and defense in order to adapt to complex environments.
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Affiliation(s)
- Cong Li
- Correspondence: (C.L.); (D.C.)
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Tao J, Jia H, Wu M, Zhong W, Jia D, Wang Z, Huang C. Genome-wide identification and characterization of the TIFY gene family in kiwifruit. BMC Genomics 2022; 23:179. [PMID: 35247966 PMCID: PMC8897921 DOI: 10.1186/s12864-022-08398-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 02/17/2022] [Indexed: 12/25/2022] Open
Abstract
Background The TIFY gene family is a group of plant-specific transcription factors involved in regulation of plant growth and development and a variety of stress responses. However, the TIFY family has not yet been well characterized in kiwifruit, a popular fruit with important nutritional and economic value. Results A total of 27 and 21 TIFY genes were identified in the genomes of Actinidia eriantha and A. chinensis, respectively. Phylogenetic analyses showed that kiwifruit TIFY genes could be classified into four major groups, JAZ, ZML, TIFY and PPD, and the JAZ group could be further clustered into six subgroups (JAZ I to JAZ VI). Members within the same group or subgroup have similar exon-intron structures and conserved motif compositions. The kiwifruit TIFY genes are unevenly distributed on the chromosomes, and the segmental duplication events played a vital role in the expansion of the TIFY genes in kiwifruit. Syntenic analyses of TIFY genes between kiwifruit and other five plant species (including Arabidopsis thaliana, Camellia sinensis, Oryza sativa, Solanum lycopersicum and Vitis vinifera) and between the two kiwifruit species provided valuable clues for understanding the potential evolution of the kiwifruit TIFY family. Molecular evolutionary analysis showed that the evolution of kiwifruit TIFY genes was primarily constrained by intense purifying selection. Promoter cis-element analysis showed that most kiwifruit TIFY genes possess multiple cis-elements related to stress-response, phytohormone signal transduction and plant growth and development. The expression pattern analyses indicated that TIFY genes might play a role in different kiwifruit tissues, including fruit at specific development stages. In addition, several TIFY genes with high expression levels during Psa (Pseudomonas syringae pv. actinidiae) infection were identified, suggesting a role in the process of Pas infection. Conclusions In this study, the kiwifruit TIFY genes were identified from two assembled kiwifruit genomes. In addition, their basic physiochemical properties, chromosomal localization, phylogeny, gene structures and conserved motifs, synteny analyses, promoter cis-elements and expression patters were systematically examined. The results laid a foundation for further understanding the function of TIFY genes in kiwifruit, and provided a new potential approach for the prevention and treatment of Psa infection. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08398-8.
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Yan X, Cui L, Liu X, Cui Y, Wang Z, Zhang H, Chen L, Cui H. NbJAZ3 is required for jasmonate-meditated glandular trichome development in Nicotiana benthamiana. PHYSIOLOGIA PLANTARUM 2022; 174:e13666. [PMID: 35285962 PMCID: PMC10084120 DOI: 10.1111/ppl.13666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 02/08/2022] [Accepted: 03/04/2022] [Indexed: 06/01/2023]
Abstract
Exogenous methyl jasmonate (MeJA) treatment induces glandular trichome development in Nicotiana benthamiana, but the function of JAZ proteins, acting as core repressors, and their downstream genes have not been clearly shown in plants. Here, a bioinformatics analysis of 71 JAZ genes from tobacco, Arabidopsis thaliana, and tomato was carried out and shown to share highly conserved domains. Then, the expression profile of 17 NbJAZs in different tissues was analyzed, and NbJAZ3 was highly expressed in trichome. Through transgenic technology, we demonstrated that the glandular trichome density of NbJAZ3-overexpression lines significantly decreased with lower expression levels of NbWo, NbCycB2, and NbMIXTA. In contrast, the trichome density of NbJAZ3 RNAi lines slightly increased with higher expression level of NbWo. Given the negative protein feedback regulation relationship between NbCycB2 and NbWo, we verified that MeJA induced NbWo expression. NbWo was a direct target gene of NbJAZ3 and further demonstrated that NbJAZ3 inhibited the transcriptional activation of NbCycB2 by NbWo. Together, our findings outline a novel JA-meditated glandular trichome development model consisting of the NbJAZ3-NbWo-NbCycB2 axis.
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Affiliation(s)
- Xiaoxiao Yan
- National Tobacco Cultivation and Physiology and Biochemistry Research Center, Key Laboratory for Tobacco Cultivation of Tobacco Industry, College of Tobacco ScienceHenan Agricultural UniversityZhengzhouChina
| | - Lipeng Cui
- Xiamen Key Laboratory for Plant Genetics, School of Life SciencesXiamen UniversityXiamenChina
| | - Xiangyang Liu
- National Tobacco Cultivation and Physiology and Biochemistry Research Center, Key Laboratory for Tobacco Cultivation of Tobacco Industry, College of Tobacco ScienceHenan Agricultural UniversityZhengzhouChina
| | - Yuchao Cui
- Xiamen Key Laboratory for Plant Genetics, School of Life SciencesXiamen UniversityXiamenChina
| | - Zhaojun Wang
- National Tobacco Cultivation and Physiology and Biochemistry Research Center, Key Laboratory for Tobacco Cultivation of Tobacco Industry, College of Tobacco ScienceHenan Agricultural UniversityZhengzhouChina
| | - Hongying Zhang
- National Tobacco Cultivation and Physiology and Biochemistry Research Center, Key Laboratory for Tobacco Cultivation of Tobacco Industry, College of Tobacco ScienceHenan Agricultural UniversityZhengzhouChina
| | - Liang Chen
- Xiamen Key Laboratory for Plant Genetics, School of Life SciencesXiamen UniversityXiamenChina
| | - Hong Cui
- National Tobacco Cultivation and Physiology and Biochemistry Research Center, Key Laboratory for Tobacco Cultivation of Tobacco Industry, College of Tobacco ScienceHenan Agricultural UniversityZhengzhouChina
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20
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Shrestha K, Huang Y. Genome-wide characterization of the sorghum JAZ gene family and their responses to phytohormone treatments and aphid infestation. Sci Rep 2022; 12:3238. [PMID: 35217668 PMCID: PMC8881510 DOI: 10.1038/s41598-022-07181-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 02/04/2022] [Indexed: 11/18/2022] Open
Abstract
Jasmonate ZIM-domain (JAZ) proteins are the key repressors of the jasmonic acid (JA) signal transduction pathway and play a crucial role in stress-related defense, phytohormone crosstalk and modulation of the growth-defense tradeoff. In this study, the sorghum genome was analyzed through genome-wide comparison and domain scan analysis, which led to the identification of 18 sorghum JAZ (SbJAZ) genes. All SbJAZ proteins possess the conserved TIFY and Jas domains and they formed a phylogenetic tree with five clusters related to the orthologs of other plant species. Similarly, evolutionary analysis indicated the duplication events as a major force of expansion of the SbJAZ genes and there was strong neutral and purifying selection going on. In silico analysis of the promoter region of the SbJAZ genes indicates that SbJAZ5, SbJAZ6, SbJAZ13, SbJAZ16 and SbJAZ17 are rich in stress-related cis-elements. In addition, expression profiling of the SbJAZ genes in response to phytohormones treatment (JA, ET, ABA, GA) and sugarcane aphid (SCA) was performed in two recombinant inbred lines (RILs) of sorghum, resistant (RIL 521) and susceptible (RIL 609) to SCA. Taken together, data generated from phytohormone expression and in silico analysis suggests the putative role of SbJAZ9 in JA-ABA crosstalk and SbJAZ16 in JA-ABA and JA-GA crosstalk to regulate certain physiological processes. Notably, upregulation of SbJAZ1, SbJAZ5, SbJAZ13 and SbJAZ16 in resistant RIL during JA treatment and SCA infestation suggests putative functions in stress-related defense and to balance the plant defense to promote growth. Overall, this report provides valuable insight into the organization and functional characterization of the sorghum JAZ gene family.
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Affiliation(s)
- Kumar Shrestha
- Department of Plant Biology, Ecology and Evolution, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Yinghua Huang
- Department of Plant Biology, Ecology and Evolution, Oklahoma State University, Stillwater, OK, 74078, USA. .,Plant Science Research Laboratory, United States Department of Agriculture-Agricultural Research Service (USDA-ARS), Stillwater, OK, 74075, USA.
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21
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Hua B, Chang J, Han X, Xu Z, Hu S, Li S, Wang R, Yang L, Yang M, Wu S, Shen J, Yu X, Wu S. H and HL synergistically regulate jasmonate-triggered trichome formation in tomato. HORTICULTURE RESEARCH 2022; 9:uhab080. [PMID: 35048113 PMCID: PMC8973001 DOI: 10.1093/hr/uhab080] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/21/2021] [Accepted: 11/25/2021] [Indexed: 06/14/2023]
Abstract
The development of trichomes, which protect plants against herbivores, is affected by various stresses. In tomato, previous studies showed that stress triggered JA signaling influences trichome formation, but the underlying mechanism is not fully resolved. Here, we found two C2H2 zinc finger proteins synergistically regulate JA-induced trichome formation in tomato. The naturally occurring mutations in H and its close homolog H-like gene in a spontaneous mutant, LA3172 cause severely affected trcihome development. Compared with respective single mutant, h/hl double mutant displayed more severe trichome defects in all tissues. Despite the partially redundant function, H and HL genes regulate the trichome formation in the spatially distinct manner, with HL more involved in hypocotyls and leaves, while H more involved in stems and sepals. Furthermore,the activity of H/HL is essential for JA-triggered trichome formation. JA signaling inhibitor SlJAZ2 represses the activity of H and HL via physical interaction, resulting in the activation of THM1, a negative regulator of trichome formation. Our results provide novel insight into the mechanism of the trichome formation in response to stress induced JA signaling in tomato.
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Affiliation(s)
- Bing Hua
- College of Horticulture, FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Jiang Chang
- College of Horticulture, FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xiaoqian Han
- College of Horticulture, FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zhijing Xu
- College of Horticulture, FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shourong Hu
- College of Horticulture, FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shuang Li
- College of Horticulture, FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Renyin Wang
- College of Horticulture, FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Liling Yang
- College of Horticulture, FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Meina Yang
- College of Horticulture, FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shasha Wu
- College of Horticulture, FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jingyuan Shen
- College of Horticulture, FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xiaomin Yu
- College of Horticulture, FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shuang Wu
- College of Horticulture, FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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22
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Zhao L, Li X, Chen W, Xu Z, Chen M, Wang H, Yu D. The emerging role of jasmonate in the control of flowering time. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:11-21. [PMID: 34599804 DOI: 10.1093/jxb/erab418] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 09/09/2021] [Indexed: 06/13/2023]
Abstract
Plants dynamically synchronize their flowering time with changes in the internal and external environments through a variety of signaling pathways to maximize fitness. In the last two decades, the major pathways associated with flowering, including the photoperiod, vernalization, age, autonomous, gibberellin, and ambient temperature pathways, have been extensively analyzed. In recent years, an increasing number of signals, such as sugar, thermosensory, stress, and certain hormones, have been shown to be involved in fine-tuning flowering time. Among these signals, the jasmonate signaling pathway has a function in the determination of flowering time that has not been systematically summarized. In this review, we present an overview of current knowledge of jasmonate control of flowering and discuss jasmonate crosstalk with other signals (such as gibberellin, defense, and touch) during floral transition.
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Affiliation(s)
- Lirong Zhao
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xia Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
| | - Wanqin Chen
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
| | - Zhiyu Xu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
| | - Mifen Chen
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
| | - Houping Wang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
| | - Diqiu Yu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China
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23
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Jia K, Yan C, Zhang J, Cheng Y, Li W, Yan H, Gao J. Genome-wide identification and expression analysis of the JAZ gene family in turnip. Sci Rep 2021; 11:21330. [PMID: 34716392 PMCID: PMC8556354 DOI: 10.1038/s41598-021-99593-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 09/27/2021] [Indexed: 12/11/2022] Open
Abstract
JAZ is a plant-specific protein family involved in the regulation of plant development, abiotic stresses, and responses to phytohormone treatments. In this study, we carried out a bioinformatics analysis of JAZ genes in turnip by determining the phylogenetic relationship, chromosomal location, gene structure and expression profiles analysis under stresses. The 36 JAZ genes were identified and classified into four subfamilies (ZML, JAZ, PPD and TIFY). The JAZ genes were located on 10 chromosomes. Two gene pairs were involved in tandem duplication events. We identified 44 collinear JAZ gene pairs in the turnip genome. Analysis of the Ka/Ks ratios indicated that the paralogs of the BrrJAZ family principally underwent purifying selection. Expression analysis suggested JAZ genes may be involved in the formation of turnip tuberous root, and they also participated in the response to ABA, SA, MeJA, salt stress and low-temperature stress. The results of this study provided valuable information for further exploration of the JAZ gene family in turnip.
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Affiliation(s)
- Kai Jia
- College of Horticulture, Xinjiang Agricultural University, Ürümqi, 830052, Xinjiang, China
| | - Cunyao Yan
- College of Horticulture, Xinjiang Agricultural University, Ürümqi, 830052, Xinjiang, China
| | - Jing Zhang
- College of Horticulture, Xinjiang Agricultural University, Ürümqi, 830052, Xinjiang, China
| | - Yunxia Cheng
- College of Horticulture, Xinjiang Agricultural University, Ürümqi, 830052, Xinjiang, China
| | - Wenwen Li
- College of Horticulture, Xinjiang Agricultural University, Ürümqi, 830052, Xinjiang, China
| | - Huizhuan Yan
- College of Horticulture, Xinjiang Agricultural University, Ürümqi, 830052, Xinjiang, China.
| | - Jie Gao
- College of Horticulture, Xinjiang Agricultural University, Ürümqi, 830052, Xinjiang, China.
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24
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Huang Z, Wang Z, Li X, He S, Liu Q, Zhai H, Zhao N, Gao S, Zhang H. Genome-Wide Identification and Expression Analysis of JAZ Family Involved in Hormone and Abiotic Stress in Sweet Potato and Its Two Diploid Relatives. Int J Mol Sci 2021; 22:ijms22189786. [PMID: 34575953 PMCID: PMC8468994 DOI: 10.3390/ijms22189786] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 09/06/2021] [Accepted: 09/06/2021] [Indexed: 01/03/2023] Open
Abstract
Jasmonate ZIM-domain (JAZ) proteins are key repressors of a jasmonic acid signaling pathway. They play essential roles in the regulation of plant growth and development, as well as environmental stress responses. However, this gene family has not been explored in sweet potato. In this study, we identified 14, 15, and 14 JAZs in cultivated hexaploid sweet potato (Ipomoea batatas, 2n = 6x = 90), and its two diploid relatives Ipomoea trifida (2n = 2x = 30) and Ipomoea triloba (2n = 2x = 30), respectively. These JAZs were divided into five subgroups according to their phylogenetic relationships with Arabidopsis. The protein physiological properties, chromosome localization, phylogenetic relationship, gene structure, promoter cis-elements, protein interaction network, and expression pattern of these 43 JAZs were systematically investigated. The results suggested that there was a differentiation between homologous JAZs, and each JAZ gene played different vital roles in growth and development, hormone crosstalk, and abiotic stress response between sweet potato and its two diploid relatives. Our work provided comprehensive comparison and understanding of the JAZ genes in sweet potato and its two diploid relatives, supplied a theoretical foundation for their functional study, and further facilitated the molecular breeding of sweet potato.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Huan Zhang
- Correspondence: ; Tel./Fax: +86-010-6273-2559
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25
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Wang H, Yang Y, Zhang Y, Zhao T, Jiang J, Li J, Xu X, Yang H. Transcriptome Analysis of Flower Development and Mining of Genes Related to Flowering Time in Tomato ( Solanum lycopersicum). Int J Mol Sci 2021; 22:ijms22158128. [PMID: 34360893 PMCID: PMC8347202 DOI: 10.3390/ijms22158128] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/25/2021] [Accepted: 07/26/2021] [Indexed: 11/29/2022] Open
Abstract
Flowering is a morphogenetic process in which angiosperms shift from vegetative growth to reproductive growth. Flowering time has a strong influence on fruit growth, which is closely related to productivity. Therefore, research on crop flowering time is particularly important. To better understand the flowering period of the tomato, we performed transcriptome sequencing of early flower buds and flowers during the extension period in the later-flowering “Moneymaker” material and the earlier-flowering “20965” homozygous inbred line, and we analyzed the obtained data. At least 43.92 million clean reads were obtained from 12 datasets, and the similarity with the tomato internal reference genome was 92.86–94.57%. Based on gene expression and background annotations, 49 candidate genes related to flowering time and flower development were initially screened, among which the greatest number belong to the photoperiod pathway. According to the expression pattern of candidate genes, the cause of early flowering of “20965” is predicted. The modes of action of the differentially expressed genes were classified, and the results show that they are closely related to hormone regulation and participated in a variety of life activities in crops. The candidate genes we screened and the analysis of their expression patterns provide a basis for future functional verification, helping to explore the molecular mechanism of tomato flowering time more comprehensively.
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26
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Heidari P, Faraji S, Ahmadizadeh M, Ahmar S, Mora-Poblete F. New Insights Into Structure and Function of TIFY Genes in Zea mays and Solanum lycopersicum: A Genome-Wide Comprehensive Analysis. Front Genet 2021; 12:657970. [PMID: 34054921 PMCID: PMC8155530 DOI: 10.3389/fgene.2021.657970] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 03/22/2021] [Indexed: 12/19/2022] Open
Abstract
The TIFY gene family, a key plant-specific transcription factor (TF) family, is involved in diverse biological processes including plant defense and growth regulation. Despite TIFY proteins being reported in some plant species, a genome-wide comparative and comprehensive analysis of TIFY genes in plant species can reveal more details. In the current study, the members of the TIFY gene family were significantly increased by the identification of 18 and six new members using maize and tomato reference genomes, respectively. Thus, a genome-wide comparative analysis of the TIFY gene family between 48 tomato (Solanum lycopersicum, a dicot plant) genes and 26 maize (Zea mays, a monocot plant) genes was performed in terms of sequence structure, phylogenetics, expression, regulatory systems, and protein interaction. The identified TIFYs were clustered into four subfamilies, namely, TIFY-S, JAZ, ZML, and PPD. The PPD subfamily was only detected in tomato. Within the context of the biological process, TIFY family genes in both studied plant species are predicted to be involved in various important processes, such as reproduction, metabolic processes, responses to stresses, and cell signaling. The Ka/Ks ratios of the duplicated paralogous gene pairs indicate that all of the duplicated pairs in the TIFY gene family of tomato have been influenced by an intense purifying selection, whereas in the maize genome, there are three duplicated blocks containing Ka/Ks > 1, which are implicated in evolution with positive selection. The amino acid residues present in the active site pocket of TIFY proteins partially differ in each subfamily, although the Mg or Ca ions exist heterogeneously in the centers of the active sites of all the predicted TIFY protein models. Based on the expression profiles of TIFY genes in both plant species, JAZ subfamily proteins are more associated with the response to abiotic and biotic stresses than other subfamilies. In conclusion, globally scrutinizing and comparing the maize and tomato TIFY genes showed that TIFY genes play a critical role in cell reproduction, plant growth, and responses to stress conditions, and the conserved regulatory mechanisms may control their expression.
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Affiliation(s)
- Parviz Heidari
- Faculty of Agriculture, Shahrood University of Technology, Shahrood, Iran
| | - Sahar Faraji
- Department of Plant Breeding, Faculty of Crop Sciences, Sari Agricultural Sciences and Natural Resources University (SANRU), Sari, Iran
| | | | - Sunny Ahmar
- Institute of Biological Sciences, University of Talca, Talca, Chile
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27
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Hua B, Chang J, Xu Z, Han X, Xu M, Yang M, Yang C, Ye Z, Wu S. HOMEODOMAIN PROTEIN8 mediates jasmonate-triggered trichome elongation in tomato. THE NEW PHYTOLOGIST 2021; 230:1063-1077. [PMID: 33474772 DOI: 10.1111/nph.17216] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 01/05/2021] [Indexed: 05/24/2023]
Abstract
Plant hormones can adjust the physiology and development of plants to enhance their adaptation to biotic and abiotic challenges. Jasmonic acid (JA), one of the immunity hormones in plants, triggers genome-wide transcriptional changes in response to insect attack and wounding. Although JA is known to affect the development of trichomes, epidermal appendages that form a protective barrier against various stresses, it remains unclear how JA interacts with developmental programs that regulate trichome development. In this study, we show that JA affects trichome length in tomato by releasing the transcriptional repression mediated by Jasmonate ZIM (JAZ) proteins. We identified SlJAZ4, a negative regulator preferentially expressed in trichomes, as the critical component in JA signaling in tomato trichomes. We also identified a homeodomain-leucine zipper gene, SlHD8, as the downstream regulator of JA signaling that promotes trichome elongation. SlHD8 is also highly expressed in trichomes and physically interacts with SlJAZ4. Loss-of-function mutations in SlHD8 caused shorter trichomes, a phenotype that was only partially rescued by methyl jasmonate treatment. Our dual-luciferase and chromatin immunoprecipitation-quantitative PCR assays revealed that SlHD8 regulates trichome elongation by directly binding to the promoters of a set of cell-wall-loosening protein genes and activating their transcription. Together, our findings define SlHD8-SlJAZ4 as a key module mediating JA-induced trichome elongation in tomato.
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Affiliation(s)
- Bing Hua
- College of Horticulture, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Jiang Chang
- College of Horticulture, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Zhijing Xu
- College of Horticulture, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Xiaoqian Han
- College of Horticulture, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Mengyuan Xu
- College of Horticulture, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Meina Yang
- College of Horticulture, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Changxian Yang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhibiao Ye
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shuang Wu
- College of Horticulture, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
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28
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Liu S, He Y, Fu Y, Zeng X. Transcriptome sequencing revealed the mechanism of promoting floret opening by exogenous methyl jasmonate in sorghum. 3 Biotech 2021; 11:181. [PMID: 33927972 DOI: 10.1007/s13205-021-02743-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 03/12/2021] [Indexed: 02/07/2023] Open
Abstract
Flowering time is a critical trait reflecting the adaptation of plants to their environments. Our initial research has shown that exogenous methyl jasmonate (MeJA) significantly promoted the floret opening of sorghum. To better understand the mechanism of this phenomenon in sorghum, the comparative transcriptome analysis was performed. Transcriptomic analysis showed that the most number of differentially expressed genes was presented between control plants and plants treated with 2.0 mM exogenous MeJA in 2.5 h. A large number of differentially expressed genes were assigned to the subcategory of carbohydrate metabolism and lipid metabolism. The transcriptomic analysis of differentially expressed genes involved in glycolysis/gluconeogenesis and tricarboxylic acid cycle indicated a close relationship between carbohydrates metabolism and flowering. In addition, potassium uptake proteins and aquaporins also played important role in response to the exogenous MeJA in the flowering process. These results provide insights into the effect of MeJA on flowering time and explore the possible molecular mechanism of advancing the flowering period by spraying MeJA. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-02743-6.
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Affiliation(s)
- Suifei Liu
- Jiangxi Agricultural University, Nanchang, 330013 China
- Jiangxi Agricultural Engineering College, Zhangshu, 331200 China
| | - Yongming He
- Jiangxi Agricultural University, Nanchang, 330013 China
| | - Yongqi Fu
- Jiangxi Agricultural University, Nanchang, 330013 China
| | - Xiaochun Zeng
- Jiangxi Agricultural University, Nanchang, 330013 China
- Yichun University, Yichun, 336000 China
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29
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Guan Y, Ding L, Jiang J, Shentu Y, Zhao W, Zhao K, Zhang X, Song A, Chen S, Chen F. Overexpression of the CmJAZ1-like gene delays flowering in Chrysanthemum morifolium. HORTICULTURE RESEARCH 2021; 8:87. [PMID: 33795661 PMCID: PMC8016864 DOI: 10.1038/s41438-021-00525-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/23/2021] [Accepted: 03/01/2021] [Indexed: 05/11/2023]
Abstract
Chrysanthemum (Chrysanthemum morifolium) is one of the four major cut-flower plants worldwide and possesses both high ornamental value and cultural connotation. As most chrysanthemum varieties flower in autumn, it is costly to achieve annual production. JAZ genes in the TIFY family are core components of the jasmonic acid (JA) signaling pathway; in addition to playing a pivotal role in plant responses to defense, they are also widely implicated in regulating plant development processes. Here, we characterized the TIFY family gene CmJAZ1-like from the chrysanthemum cultivar 'Jinba'. CmJAZ1-like localizes in the nucleus and has no transcriptional activity in yeast. Tissue expression pattern analysis indicated that CmJAZ1-like was most active in the root and shoot apex. Overexpressing CmJAZ1-like with Jas domain deletion in chrysanthemum resulted in late flowering. RNA-Seq analysis of the overexpression lines revealed some differentially expressed genes (DEGs) involved in flowering, such as the homologs of the flowering integrators FT and SOC1, an FUL homolog involved in flower meristem identity, AP2 domain-containing transcription factors, MADS box genes, and autonomous pathway-related genes. Based on KEGG pathway enrichment analysis, the differentially transcribed genes were enriched in carbohydrate metabolic and fatty acid-related pathways, which are notable for their role in flowering in plants. This study preliminarily verified the function of CmJAZ1-like in chrysanthemum flowering, and the results can be used in molecular breeding programs aimed at flowering time regulation of chrysanthemum.
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Affiliation(s)
- Yunxiao Guan
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Lian Ding
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jiafu Jiang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yuanyue Shentu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Wenqian Zhao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Kunkun Zhao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xue Zhang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Aiping Song
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Sumei Chen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Fadi Chen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China.
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Hua B, Chang J, Wu M, Xu Z, Zhang F, Yang M, Xu H, Wang L, Chen X, Wu S. Mediation of JA signalling in glandular trichomes by the woolly/SlMYC1 regulatory module improves pest resistance in tomato. PLANT BIOTECHNOLOGY JOURNAL 2021; 19:375-393. [PMID: 32888338 PMCID: PMC7868972 DOI: 10.1111/pbi.13473] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 07/26/2020] [Accepted: 08/07/2020] [Indexed: 05/24/2023]
Abstract
Almost all plants form trichomes, which protect them against insect herbivores by forming a physical barrier and releasing chemical repellents. Glandular trichomes produce a variety of specialized defensive metabolites, including volatile terpenes. Previous studies have shown that the defence hormone jasmonic acid (JA) affects trichome development and induces terpene synthases (TPSs) but the underlying molecular mechanisms remain unclear. Here, we characterized a loss-of-function allele of the HD-ZIP IV transcription factor woolly (wo) and analysed its role in mediating JA signalling in tomato. We showed that knockout of wo led to extensive trichome defects, including structural and functional changes in type VI glandular trichomes, and a dramatic reduction in terpene levels. We further found that wo directly binds to TPS gene promoters to recruit SlMYC1, a JA signalling modulator, and that together these transcription factors promote terpene biosynthesis in tomato trichomes. The wo/SlMYC1 regulatory module is inhibited by SlJAZ2 through a competitive binding mechanism, resulting in a fine-tuned JA response in tomato trichomes. Enhanced expression of SlMYC1 substantially increased terpene levels and improved tomato resistance to spider mites. Interestingly, we also found that SlMYC1 plays an additional role in glandular cell division and expansion in type VI trichomes, independent of JA. Together, our results reveal a novel, JA-mediated regulatory mechanism that promotes insect resistance in tomato.
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Affiliation(s)
- Bing Hua
- College of HorticultureFAFU‐UCR Joint Center and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems BiologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Jiang Chang
- College of HorticultureFAFU‐UCR Joint Center and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems BiologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Minliang Wu
- College of HorticultureFAFU‐UCR Joint Center and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems BiologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Zhijing Xu
- College of HorticultureFAFU‐UCR Joint Center and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems BiologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Fanyu Zhang
- College of HorticultureFAFU‐UCR Joint Center and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems BiologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Meina Yang
- College of HorticultureFAFU‐UCR Joint Center and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems BiologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Huimin Xu
- College of HorticultureFAFU‐UCR Joint Center and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems BiologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Ling‐Jian Wang
- National Key Laboratory of Plant Molecular GeneticsCAS Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyShanghaiChina
| | - Xiao‐Ya Chen
- National Key Laboratory of Plant Molecular GeneticsCAS Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyShanghaiChina
| | - Shuang Wu
- College of HorticultureFAFU‐UCR Joint Center and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems BiologyFujian Agriculture and Forestry UniversityFuzhouChina
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Li B, Feng Y, Zong Y, Zhang D, Hao X, Li P. Elevated CO 2-induced changes in photosynthesis, antioxidant enzymes and signal transduction enzyme of soybean under drought stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 154:105-114. [PMID: 32535322 DOI: 10.1016/j.plaphy.2020.05.039] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 05/26/2020] [Accepted: 05/29/2020] [Indexed: 06/11/2023]
Abstract
Rising atmospheric [CO2] influences plant growth, development, productivity and stress responses. Soybean is a major oil crop. At present, it is unclear how elevated [CO2] affects the physiological and biochemical pathways of soybean under drought stress. In this study, changes in the photosynthetic capacity, photosynthetic pigment and antioxidant level were evaluated in soybean at flowering stages under different [CO2] (400 μmol mol-1 and 600 μmol mol-1) and water level (the relative water content of the soil was 75-85% soil capacity, and the relative water content of the soil was 35-45% soil capacity under drought stress). Changes in levels of osmolytes, hormones and signal transduction enzymes were also determined. The results showed that under drought stress, increasing [CO2] significantly reduced leaf transpiration rate (E), net photosynthetic rate (PN) and chlorophyll b content. Elevated [CO2] significantly decreased the content of malondialdehyde (MDA) and proline (PRO), while significantly increased superoxide dismutase (SOD) and abscisic acid (ABA) under drought stress. Elevated [CO2] significantly increased the transcript and protein levels of calcium-dependent protein kinase (CDPK), and Glutathione S- transferase (GST). The content of HSP-70 and the corresponding gene expression level were significantly reduced by elevated [CO2], irrespective of water treatments. Taken together, these results suggest that elevated [CO2] does not alleviate the negative impacts of drought stress on photosynthesis. ABA, CDPK and GST may play an important role in elevated CO2-induced drought stress responses.
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Affiliation(s)
- Bingyan Li
- College of Agriculture, Shanxi Agricultural University, Taigu, 030801, China
| | - Yanan Feng
- College of Agriculture, Shanxi Agricultural University, Taigu, 030801, China
| | - Yuzheng Zong
- College of Agriculture, Shanxi Agricultural University, Taigu, 030801, China
| | - Dongsheng Zhang
- College of Agriculture, Shanxi Agricultural University, Taigu, 030801, China
| | - Xingyu Hao
- College of Agriculture, Shanxi Agricultural University, Taigu, 030801, China
| | - Ping Li
- College of Agriculture, Shanxi Agricultural University, Taigu, 030801, China.
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Chalvin C, Drevensek S, Dron M, Bendahmane A, Boualem A. Genetic Control of Glandular Trichome Development. TRENDS IN PLANT SCIENCE 2020; 25:477-487. [PMID: 31983619 DOI: 10.1016/j.tplants.2019.12.025] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 12/06/2019] [Accepted: 12/20/2019] [Indexed: 05/28/2023]
Abstract
Plant glandular trichomes are epidermal secretory structures producing various specialized metabolites. These metabolites are involved in plant adaptation to its environment and many of them have remarkable properties exploited by fragrance, flavor, and pharmaceutical industries. The identification of genes controlling glandular trichome development is of high interest to understand how plants produce specialized metabolites. Our knowledge about this developmental process is still limited, but genes controlling glandular trichome initiation and morphogenesis have recently been identified. In particular, R2R3-MYB and HD-ZIP IV transcription factors appear to play essential roles in glandular trichome initiation in Artemisia annua and tomato. In this review, we focus on the results obtained in these two species and we propose genetic regulation models integrating these data.
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Affiliation(s)
- Camille Chalvin
- Université Paris-Saclay, INRAE, CNRS, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France
| | - Stéphanie Drevensek
- Université Paris-Saclay, INRAE, CNRS, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France
| | - Michel Dron
- Université Paris-Saclay, INRAE, CNRS, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France
| | - Abdelhafid Bendahmane
- Université Paris-Saclay, INRAE, CNRS, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France
| | - Adnane Boualem
- Université Paris-Saclay, INRAE, CNRS, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France.
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Genome-wide and expression pattern analysis of JAZ family involved in stress responses and postharvest processing treatments in Camellia sinensis. Sci Rep 2020; 10:2792. [PMID: 32066857 PMCID: PMC7026426 DOI: 10.1038/s41598-020-59675-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 02/03/2020] [Indexed: 12/22/2022] Open
Abstract
The JASMONATE-ZIM DOMAIN (JAZ) family genes are key repressors in the jasmonic acid signal transduction pathway. Recently, the JAZ gene family has been systematically characterized in many plants. However, this gene family has not been explored in the tea plant. In this study, 13 CsJAZ genes were identified in the tea plant genome. Phylogenetic analysis showed that the JAZ proteins from tea and other plants clustered into 11 sub-groups. The CsJAZ gene transcriptional regulatory network predictive and expression pattern analyses suggest that these genes play vital roles in abiotic stress responses, phytohormone crosstalk and growth and development of the tea plant. In addition, the CsJAZ gene expression profiles were associated with tea postharvest processing. Our work provides a comprehensive understanding of the CsJAZ family and will help elucidate their contributions to tea quality during tea postharvest processing.
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Wang X, Zhu B, Jiang Z, Wang S. Calcium-mediation of jasmonate biosynthesis and signaling in plants. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2019; 287:110192. [PMID: 31481228 DOI: 10.1016/j.plantsci.2019.110192] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 06/24/2019] [Accepted: 07/15/2019] [Indexed: 05/22/2023]
Abstract
Jasmonates (JAs) play vital roles in regulating a range of plant growth and development processes including seed germination, seedling development, reproduction, formation and development of storage organs, and senescence. JAs are also involved in the regulation of plant responses to environmental stimuli. The biosynthesis of JAs takes place in three different subcellular compartments, namely, the chloroplast, peroxisome, and cytoplasm. JAs activate the expression of JA-responsive genes by degrading jasmonate zinc-finger-inflorescence meristem (Zim) domain (JAZ) repressors via the E3 ubiquitin-ligase Skp/Cullin/F-box protein CORONATINE INSENSITIVE1 (COI1) complex (SCFCOI1) by using 26S proteasome. Calcium, reactive oxygen species (ROS), mitogen-activated protein kinase (MAPK), and nitric oxide (NO) are involved in the regulation of the biosynthesis and signaling of JAs in plants. Among these signaling molecules, calcium is one of the most important within plant cells. In plants, intracellular calcium levels change in response to JAs, resulting in calcium signatures with temporal and spatial features. Calcium channels are involved in the generation of calcium signatures. Calcium sensors, including calmodulins (CaMs), CaM-like proteins (CMLs), calcineurin B-like proteins (CBLs), and calcium-dependent protein kinases (CDPKs), can act to regulate the biosynthesis and signaling of JAs.
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Affiliation(s)
- Xiaoping Wang
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, 130024, China
| | - Biping Zhu
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China
| | - Zhonghao Jiang
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Shucai Wang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, 130024, China; College of Life Science, Linyi University, Linyi, 276000, China.
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Ma YQ, Li Q, Pu ZQ, Lu MX, Yao JW, Feng JC, Xu ZQ. Constitutive expression of NtabSPL6-1 in tobacco and Arabidopsis could change the structure of leaves and promote the development of trichomes. JOURNAL OF PLANT PHYSIOLOGY 2019; 240:152991. [PMID: 31207459 DOI: 10.1016/j.jplph.2019.152991] [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: 02/04/2019] [Revised: 06/04/2019] [Accepted: 06/04/2019] [Indexed: 06/09/2023]
Abstract
The coding sequence of NtabSPL6-1 was cloned by high-fidelity PCR with specific primers and was used in construction of a binary vector for overexpression. Wild-type Col-0 Arabidopsis plants and Qinyan95 tobacco leaves were transformed using floral dip and leaf disc methods, respectively. Phenotypic observation showed that constitutive expression of NtabSPL6-1 in Arabidopsis could promote the development of trichomes on leaf epidermis and influence the growth pattern of cauline leaves. In tobacco, ectopic expression of NtabSPL6-1 led to dwarfism of the plants and alteration of the leaf structure, accompanied by changes of the glandular trichomes in development. At the same time, the self-regulation capability of NtabSPL6-1 was determined by yeast two-hybrid system. The results indicated that SBP-C terminal domain and C terminal domain of NtabSPL6-1 possessed strong transcriptional activation ability; the intact protein, N terminal domain, and the first peptide fragment in N terminal domain possessed weak transcriptional activation ability; and the second and the third peptide fragments in N terminal domain had no transcriptional activation ability, suggesting the N terminal domain of NtabSPL6-1 could block the activity of the C terminal domain. NtabSPL6-1 may affect the resistance of plants to biotic stress factors indirectly by regulation of the trichome growth.
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Affiliation(s)
- Yan-Qin Ma
- Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), Shaanxi Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xi'an, Shaanxi 710069, People's Republic of China
| | - Qi Li
- Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), Shaanxi Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xi'an, Shaanxi 710069, People's Republic of China
| | - Zuo-Qian Pu
- Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), Shaanxi Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xi'an, Shaanxi 710069, People's Republic of China
| | - Meng-Xin Lu
- Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), Shaanxi Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xi'an, Shaanxi 710069, People's Republic of China
| | - Jing-Wen Yao
- Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), Shaanxi Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xi'an, Shaanxi 710069, People's Republic of China
| | - Jia-Chun Feng
- Key Laboratory of Molecular Engineering of Polymers of Ministry of Education, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, People's Republic of China
| | - Zi-Qin Xu
- Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), Shaanxi Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xi'an, Shaanxi 710069, People's Republic of China.
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Rusman Q, Lucas-Barbosa D, Poelman EH, Dicke M. Ecology of Plastic Flowers. TRENDS IN PLANT SCIENCE 2019; 24:725-740. [PMID: 31204246 DOI: 10.1016/j.tplants.2019.04.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 04/16/2019] [Accepted: 04/25/2019] [Indexed: 05/20/2023]
Abstract
Plant phenotypic plasticity in response to herbivore attack includes changes in flower traits. Such herbivore-induced changes in flower traits have consequences for interactions with flower visitors. We synthesize here current knowledge on the specificity of herbivore-induced changes in flower traits, the underlying molecular mechanisms, and the ecological consequences for flower-associated communities. Herbivore-induced changes in flower traits seem to be largely herbivore species-specific. The extensive plasticity observed in flowers influences a highly connected web of interactions within the flower-associated community. We argue that the adaptive value of herbivore-induced plant responses and flower plasticity can be fully understood only from a community perspective rather than from pairwise interactions.
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Affiliation(s)
- Quint Rusman
- Laboratory of Entomology, Wageningen University, PO Box 16, 6700 AA Wageningen, The Netherlands.
| | - Dani Lucas-Barbosa
- Laboratory of Entomology, Wageningen University, PO Box 16, 6700 AA Wageningen, The Netherlands
| | - Erik H Poelman
- Laboratory of Entomology, Wageningen University, PO Box 16, 6700 AA Wageningen, The Netherlands
| | - Marcel Dicke
- Laboratory of Entomology, Wageningen University, PO Box 16, 6700 AA Wageningen, The Netherlands
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Chao J, Zhao Y, Jin J, Wu S, Deng X, Chen Y, Tian WM. Genome-Wide Identification and Characterization of the JAZ Gene Family in Rubber Tree ( Hevea brasiliensis). Front Genet 2019; 10:372. [PMID: 31118943 PMCID: PMC6504806 DOI: 10.3389/fgene.2019.00372] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 04/09/2019] [Indexed: 11/13/2022] Open
Abstract
Jasmonate signaling plays a vital role in the regulation of secondary laticifer differentiation and natural rubber biosynthesis in Hevea brasiliensis. Jasmonate ZIM-domain (JAZ) proteins are the master regulators of jasmonate signaling. Although several JAZs have been reported in the laticifer cells of H. brasiliensis, the genome-wide screening of HbJAZ members has not yet been explored. In the present study, 18 HbJAZs were identified based on the recent H. brasiliensis genome. Phylogenetic construction revealed that the HbJAZs were clustered into five subgroups and that members within the same subgroup shared highly conserved gene structures and protein motifs. Cis-element analysis of HbJAZ promoters suggested the presence of hormone, stress and development-related cis-elements. HbJAZ1.0, HbJAZ2.0, and HbJAZ5.0 interacted with CORONATINE INSENSITIVE1 (COI1) in the presence of coronatine (COR, a JA mimic). HbJAZ1.0, HbJAZ2.0, HbJAZ5.0, and HbJAZ12.0 could also interact with each other. Of the 18 HbJAZs, transcripts of 15 HbJAZs were present in the vascular cambium region except for that of HbJAZ7.0, HbJAZ8.0d, and HbJAZ13.0. Fourteen of the 15 HbJAZs were significantly up-regulated upon COR treatment. The transcripts of three genes that were absent from vascular cambium region were also absent from the latex. Among the 15 HbJAZs in the latex, the expression patterns of 13 HbJAZs were different between the tapping and ethrel treatments. Eight of the 14 COR-up-regulated HbJAZs in the vascular cambium region were also activated by tapping in latex. Of the eight tapping-activated HbJAZs, 5 HbJAZs were repressed by ethrel application. Based on the computational analyses and gene expression patterns described in this study, the HbJAZ5.0 and HbJAZ10.0b may be associated with laticifer differentiation while the HbJAZ8.0b is a negative regulator for natural rubber biosynthesis in H. brasiliensis.
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Affiliation(s)
- Jinquan Chao
- Ministry of Agriculture Key Laboratory of Biology and Genetic Resources of Rubber Tree/State Key Laboratory Breeding Base of Cultivation and Physiology for Tropical Crops, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Yue Zhao
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Jie Jin
- Nextomics Biosciences Co., Ltd., Wuhan, China
| | - Shaohua Wu
- Ministry of Agriculture Key Laboratory of Biology and Genetic Resources of Rubber Tree/State Key Laboratory Breeding Base of Cultivation and Physiology for Tropical Crops, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Xiaomin Deng
- Ministry of Agriculture Key Laboratory of Biology and Genetic Resources of Rubber Tree/State Key Laboratory Breeding Base of Cultivation and Physiology for Tropical Crops, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Yueyi Chen
- Ministry of Agriculture Key Laboratory of Biology and Genetic Resources of Rubber Tree/State Key Laboratory Breeding Base of Cultivation and Physiology for Tropical Crops, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Wei-Min Tian
- Ministry of Agriculture Key Laboratory of Biology and Genetic Resources of Rubber Tree/State Key Laboratory Breeding Base of Cultivation and Physiology for Tropical Crops, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
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Yang Y, Ahammed GJ, Wan C, Liu H, Chen R, Zhou Y. Comprehensive Analysis of TIFY Transcription Factors and Their Expression Profiles under Jasmonic Acid and Abiotic Stresses in Watermelon. Int J Genomics 2019; 2019:6813086. [PMID: 31662958 PMCID: PMC6791283 DOI: 10.1155/2019/6813086] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 08/26/2019] [Indexed: 02/07/2023] Open
Abstract
The TIFY gene family is plant-specific and encodes proteins involved in the regulation of multiple biological processes. Here, we identified 15 TIFY genes in the watermelon genome, which were divided into four subfamilies (eight JAZs, four ZMLs, two TIFYs, and one PPD) in the phylogenetic tree. The ClTIFY genes were unevenly located on eight chromosomes, and three segmental duplication events and one tandem duplication event were identified, suggesting that gene duplication plays a vital role in the expansion of the TIFY gene family in watermelon. Further analysis of the protein architectures, conserved domains, and gene structures provided additional clues for understanding the putative functions of the TIFY family members. Analysis of qRT-PCR and RNA-seq data revealed that the detected ClTIFY genes had preferential expression in specific tissues. qRT-PCR analysis revealed that nine selected TIFY genes were responsive to jasmonic acid (JA) and abiotic stresses including salt and drought. JA activated eight genes and suppressed one gene, among which ClJAZ1 and ClJAZ7 were the most significantly induced. Salt and drought stress activated nearly all the detected genes to different degrees. These results lay a foundation for further functional characterization of TIFY family genes in Citrullus lanatus.
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Affiliation(s)
- Youxin Yang
- 1Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits & Vegetables, Collaborative Innovation Center of Postharvest Key Technology and Quality Safety of Fruits and Vegetables, College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China
| | - Golam Jalal Ahammed
- 2College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Chunpeng Wan
- 1Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits & Vegetables, Collaborative Innovation Center of Postharvest Key Technology and Quality Safety of Fruits and Vegetables, College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China
| | - Haoju Liu
- 3College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Rongrong Chen
- 3College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yong Zhou
- 3College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang 330045, China
- 4Key Laboratory of Crop Physiology, Ecology, and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China
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Zhou S, Hu Z, Li F, Tian S, Zhu Z, Li A, Chen G. Overexpression of SlOFP20 affects floral organ and pollen development. HORTICULTURE RESEARCH 2019; 6:125. [PMID: 31754432 PMCID: PMC6856366 DOI: 10.1038/s41438-019-0207-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 09/04/2019] [Accepted: 09/12/2019] [Indexed: 05/06/2023]
Abstract
The OVATE gene was initially identified in tomato and serves as a key regulator of fruit shape. There are 31 OFP members in the tomato genome. However, their roles in tomato growth and reproductive development are largely unknown. Here, we cloned the OFP transcription factor SlOFP20. Tomato plants overexpressing SlOFP20 displayed several phenotypic defects, including an altered floral architecture and fruit shape and reduced male fertility. SlOFP20 overexpression altered the expression levels of some brassinosteroid (BR)-associated genes, implying that SlOFP20 may play a negative role in the BR response, similar to its ortholog OsOFP19 in rice. Moreover, the transcript accumulation of gibberellin (GA)-related genes was significantly affected in the transgenic lines. SlOFP20 may play an important role in the crosstalk between BR and GA. The pollen germination assay suggested that the pollen germination rate of SlOFP20-OE plants was distinctly lower than that of WT plants. In addition, the tomato pollen-associated genes SlCRK1, SlPMEI, LePRK3, SlPRALF, and LAT52 were all suppressed in the transgenic lines. Our data imply that SlOFP20 may affect floral organ and pollen development by modulating BR and GA signaling in tomato.
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Affiliation(s)
- Shengen Zhou
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People’s Republic of China
| | - Zongli Hu
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People’s Republic of China
| | - Fenfen Li
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People’s Republic of China
| | - Shibing Tian
- Institute of Vegetable Research, Chongqing Academy of Agricultural Sciences, Chongqing, People’s Republic of China
| | - Zhiguo Zhu
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People’s Republic of China
| | - Anzhou Li
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People’s Republic of China
| | - Guoping Chen
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People’s Republic of China
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Zhou S, Hu Z, Li F, Yu X, Naeem M, Zhang Y, Chen G. Manipulation of plant architecture and flowering time by down-regulation of the GRAS transcription factor SlGRAS26 in Solanum lycopersicum. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2018; 271:81-93. [PMID: 29650160 DOI: 10.1016/j.plantsci.2018.03.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 03/14/2018] [Accepted: 03/16/2018] [Indexed: 05/03/2023]
Abstract
Previous studies suggest that GRAS transcription factors act as essential regulators, not only in plant growth and development but also in response to biotic and abiotic stresses. Recently, 53 GRAS proteins have been identified, but only a few of them have been functionally studied in tomato. Here, we isolated a novel GRAS transcription factor SlGRAS26, its down-regulation generated pleiotropic phenotypes, including reduced plant height with more lateral shoots, internode length, leaf size, even leaflets, accelerated flowering transition and decreased trichome number. Transcription analysis showed that down-regulation of SlGRAS26 altered vegetative growth by suppressing gibberellin (GA) biosynthesis genes and activating the GA inactivating genes, thereby reducing endogenous GA content in transgenic plants. SlGRAS26 may regulate the initiation of lateral buds by regulating the expression of Blind (BL) and BRC1b. The earlier initiation of flower buds in transgenic lines may be controlled by significant up-regulation of SFT, CO1, SBP3, SBP13, and SBP15 genes, related to flowering time. These results demonstrate that SlGRAS26 may play a vital role in the initiation of lateral and inflorescence meristems in tomato.
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Affiliation(s)
- Shengen Zhou
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China.
| | - Zongli Hu
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China.
| | - Fenfen Li
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China.
| | - Xiaohui Yu
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China.
| | - Muhammad Naeem
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China.
| | - Yanjie Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, People's Republic of China.
| | - Guoping Chen
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China.
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Yongfeng W, Aiquan Z, Fengli S, Mao L, Kaijie X, Chao Z, Shudong L, Yajun X. Using Transcriptome Analysis to Identify Genes Involved in Switchgrass Flower Reversion. FRONTIERS IN PLANT SCIENCE 2018; 9:1805. [PMID: 30564266 PMCID: PMC6288819 DOI: 10.3389/fpls.2018.01805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 11/20/2018] [Indexed: 05/06/2023]
Abstract
Floral reversion is a process in which differentiated floral organs revert back to vegetative organs. Although this phenomenon has been described for decades, the underlying molecular mechanisms remain unclear. In this study, we found that immature switchgrass (Panicum virgatum) inflorescences can revert to neonatal shoots when incubated on a basal medium with benzylaminopurine. We used anatomical and histological methods to verify that these shoots were formed from floret primordia through flower reversion. To further explore the gene regulation of floral reversion in switchgrass, the transcriptome of reversed, unreversed, and uncultured immature inflorescences were analyzed and 517 genes were identified as participating in flower reversion. Annotation using non-redundant databases revealed that these genes are involved in plant hormone biosynthesis and signal transduction, starch and sucrose metabolism, DNA replication and modification, and other processes crucial for switchgrass flower reversion. When four of the genes were overexpressed in Arabidopsis thaliana, vegetative growth was facilitated and reproductive growth was inhibited in transgenic plants. This study provides a basic understanding of genes regulating the floral transition in switchgrass and will promote the research of floral reversion and flower maintenance.
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Affiliation(s)
- Wang Yongfeng
- College of Agronomy, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, China
| | - Zheng Aiquan
- College of Agronomy, Northwest A&F University, Yangling, China
- Yangling Vocational & Technical College, Yangling, China
| | - Sun Fengli
- College of Agronomy, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, China
| | - Li Mao
- College of Agronomy, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, China
| | - Xu Kaijie
- Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Zhang Chao
- College of Agronomy, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, China
| | - Liu Shudong
- College of Agronomy, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, China
| | - Xi Yajun
- College of Agronomy, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, China
- *Correspondence: Xi Yajun,
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