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Lu J, Zheng D, Li M, Fu M, Zhang X, Wan X, Zhang S, Chen Q. A hierarchical model of ABA-mediated signal transduction in tea plant revealed by systematic genome mining analysis and interaction validation. TREE PHYSIOLOGY 2023; 43:867-878. [PMID: 36694977 DOI: 10.1093/treephys/tpad004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/20/2022] [Accepted: 01/19/2023] [Indexed: 05/13/2023]
Abstract
As a critical signaling molecule, ABA plays an important role in plant growth, development and stresses response. However, tea plant [Camellia sinensis (L.)], an important economical perennial woody plant, has not been systematically reported in response to ABA signal transduction in vivo. In this study, we mined and identified the gene structure of CsPYL/CsPP2C-A/CsSnRK gene families in the ABA signal transduction pathway through the genome-wide analysis of tea plants. Spatiotemporal expression and stress response (drought, salt, chilling) expression patterns were characterized. The results showed that most members of CsPYLs were conserved, and the gene structures of members of A-type CsPP2Cs were highly similar, whereas the gene structure of CsSnRK2s was highly variable. The transcription levels of different family members were differentially expressed with plant growth and development, and their response to stress signal patterns was highly correlated. The expression patterns of CsPYL/CsPP2C-A/CsSnRK2 gene family members in different tissues of tea plant cuttings after exogenous ABA treatment were detected by qRT-PCR, and the hierarchical model of ABA signaling was constructed by correlation analysis to preliminarily obtain three potential ABA-dependent signaling transduction pathways. Subsequently, the protein interaction of the CsPYL4/7-CsPP2C-A2-CsSnRK2.8 signaling pathway was verified by yeast two-hybrid and surface plasmon resonance experiments, indicating that there is specific selectivity in the ABA signaling pathway. Our results provided novel insights into the ABA-dependent signal transduction model in tea plant and information for future functional characterizations of stress tolerance genes in tea plant.
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Affiliation(s)
- Jing Lu
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China
| | - Dongqiao Zheng
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China
| | - Mengshuang Li
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China
| | - Maoyin Fu
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China
| | - Xianchen Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036 , China
| | - Xiaochun Wan
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China
| | - Shihua Zhang
- College of Life Science and Health, Wuhan University of Science and Technology, 947 Peace Avenue, Wuhan 430081, China
| | - Qi Chen
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China
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Wang Y, Samarina L, Mallano AI, Tong W, Xia E. Recent progress and perspectives on physiological and molecular mechanisms underlying cold tolerance of tea plants. FRONTIERS IN PLANT SCIENCE 2023; 14:1145609. [PMID: 36866358 PMCID: PMC9971632 DOI: 10.3389/fpls.2023.1145609] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
Tea is one of the most consumed and widely planted beverage plant worldwide, which contains many important economic, healthy, and cultural values. Low temperature inflicts serious damage to tea yields and quality. To cope with cold stress, tea plants have evolved a cascade of physiological and molecular mechanisms to rescue the metabolic disorders in plant cells caused by the cold stress; this includes physiological, biochemical changes and molecular regulation of genes and associated pathways. Understanding the physiological and molecular mechanisms underlying how tea plants perceive and respond to cold stress is of great significance to breed new varieties with improved quality and stress resistance. In this review, we summarized the putative cold signal sensors and molecular regulation of the CBF cascade pathway in cold acclimation. We also broadly reviewed the functions and potential regulation networks of 128 cold-responsive gene families of tea plants reported in the literature, including those particularly regulated by light, phytohormone, and glycometabolism. We discussed exogenous treatments, including ABA, MeJA, melatonin, GABA, spermidine and airborne nerolidol that have been reported as effective ways to improve cold resistance in tea plants. We also present perspectives and possible challenges for functional genomic studies on cold tolerance of tea plants in the future.
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Affiliation(s)
- Yanli Wang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, China
| | - Lidia Samarina
- Federal Research Centre the Subtropical Scientific Centre, The Russian Academy of Sciences, Sochi, Russia
| | - Ali Inayat Mallano
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, China
| | - Wei Tong
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, China
| | - Enhua Xia
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, China
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Shen F, Hu C, Huang X, Wu R, Luo S, Xu C, Zhang H, Wang X, Zhao J. Characterization of the genetic and regulatory networks associated with sugar and acid metabolism in apples via an integrated strategy. FRONTIERS IN PLANT SCIENCE 2022; 13:1066592. [PMID: 36466245 PMCID: PMC9712955 DOI: 10.3389/fpls.2022.1066592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 10/26/2022] [Indexed: 06/17/2023]
Abstract
Although sugars and acids have a substantial influence on the taste of apple fruits, the genetic and regulatory networks underlying their metabolism in fruit remain insufficiently determined. To fully decipher the genetic basis of the accumulation of sugars and acids in apple fruits, we adopted an integrated strategy that included time-course RNA-seq, QTL mapping, and whole-genome sequencing to examine two typical cultivars ('HanFu' and 'Huahong') characterized by distinctive flavors. Whole-genome sequencing revealed substantial genetic variation between the two cultivars, thereby providing an indication of the genetic basis of the distinct phenotypes. Constructed co-expression networks yielded information regarding the intra-relationships among the accumulation of different types of metabolites, and also revealed key regulatory nodes associated with the accumulation of sugars and acids, including the genes MdEF2, MdPILS5, and MdGUN8. Additionally, on the basis of QTL mapping using a high-density genetic map, we identified a series of QTLs and functional genes underlying vital traits, including sugar and acid contents. Collectively, our methodology and observations will provide an important reference for further studies focusing on the flavor of apples.
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Affiliation(s)
- Fei Shen
- Institute of Biotechnology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Chenyang Hu
- College of Life Science, Shanxi Key Lab of Chinese Jujube, Yan’an University, Yan’an, Shanxi, China
| | - Xin Huang
- College of Landscape and Ecological Engineering, Hebei University of Engineering, Handan, Hebei, China
| | - Ruigang Wu
- College of Landscape and Ecological Engineering, Hebei University of Engineering, Handan, Hebei, China
| | - Shuzhen Luo
- College of Life Science, Shanxi Key Lab of Chinese Jujube, Yan’an University, Yan’an, Shanxi, China
| | - Chengnan Xu
- College of Life Science, Shanxi Key Lab of Chinese Jujube, Yan’an University, Yan’an, Shanxi, China
| | - Hong Zhang
- College of Life Science, Shanxi Key Lab of Chinese Jujube, Yan’an University, Yan’an, Shanxi, China
| | - Xuan Wang
- Hebei Normal University of Science & Technology, Qinhuangdao, Hebei, China
| | - Jirong Zhao
- College of Life Science, Shanxi Key Lab of Chinese Jujube, Yan’an University, Yan’an, Shanxi, China
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