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Wang X, Wei J, Wu J, Shi B, Wang P, Alabd A, Wang D, Gao Y, Ni J, Bai S, Teng Y. Transcription factors BZR2/MYC2 modulate brassinosteroid and jasmonic acid crosstalk during pear dormancy. PLANT PHYSIOLOGY 2024; 194:1794-1814. [PMID: 38036294 DOI: 10.1093/plphys/kiad633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 10/27/2023] [Accepted: 10/29/2023] [Indexed: 12/02/2023]
Abstract
Bud dormancy is an important physiological process during winter. Its release requires a certain period of chilling. In pear (Pyrus pyrifolia), the abscisic acid (ABA)-induced expression of DORMANCY-ASSOCIATED MADS-box (DAM) genes represses bud break, whereas exogenous gibberellin (GA) promotes dormancy release. However, with the exception of ABA and GA, the regulatory effects of phytohormones on dormancy remain largely uncharacterized. In this study, we confirmed brassinosteroids (BRs) and jasmonic acid (JA) contribute to pear bud dormancy release. If chilling accumulation is insufficient, both 24-epibrassinolide (EBR) and methyl jasmonic acid (MeJA) can promote pear bud break, implying that they positively regulate dormancy release. BRASSINAZOLE RESISTANT 2 (BZR2), which is a BR-responsive transcription factor, inhibited PpyDAM3 expression and accelerated pear bud break. The transient overexpression of PpyBZR2 increased endogenous GA, JA, and JA-Ile levels. In addition, the direct interaction between PpyBZR2 and MYELOCYTOMATOSIS 2 (PpyMYC2) enhanced the PpyMYC2-mediated activation of Gibberellin 20-oxidase genes PpyGA20OX1L1 and PpyGA20OX2L2 transcription, thereby increasing GA3 contents and accelerating pear bud dormancy release. Interestingly, treatment with 5 μm MeJA increased the bud break rate, while also enhancing PpyMYC2-activated PpyGA20OX expression and increasing GA3,4 contents. The 100 μm MeJA treatment decreased the PpyMYC2-mediated activation of the PpyGA20OX1L1 and PpyGA20OX2L2 promoters and suppressed the inhibitory effect of PpyBZR2 on PpyDAM3 transcription, ultimately inhibiting pear bud break. In summary, our data provide insights into the crosstalk between the BR and JA signaling pathways that regulate the BZR2/MYC2-mediated pathway in the pear dormancy release process.
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Affiliation(s)
- Xuxu Wang
- Hainan Institute of Zhejiang University, Sanya, Hainan 572000, PR China
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Jia Wei
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Jiahao Wu
- Hainan Institute of Zhejiang University, Sanya, Hainan 572000, PR China
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Baojing Shi
- Hainan Institute of Zhejiang University, Sanya, Hainan 572000, PR China
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Peihui Wang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Ahmed Alabd
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
- Department of Pomology, Faculty of Agriculture, Alexandria University, Alexandria 21545, Egypt
| | - Duanni Wang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Yuhao Gao
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Junbei Ni
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Songling Bai
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Yuanwen Teng
- Hainan Institute of Zhejiang University, Sanya, Hainan 572000, PR China
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
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Gao Y, Yang Q, Yan X, Wu X, Yang F, Li J, Wei J, Ni J, Ahmad M, Bai S, Teng Y. High-quality genome assembly of 'Cuiguan' pear (Pyrus pyrifolia) as a reference genome for identifying regulatory genes and epigenetic modifications responsible for bud dormancy. HORTICULTURE RESEARCH 2021; 8:197. [PMID: 34465760 PMCID: PMC8408243 DOI: 10.1038/s41438-021-00632-w] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 06/09/2021] [Accepted: 06/13/2021] [Indexed: 05/26/2023]
Abstract
Dormancy-associated MADS-box (DAM) genes serve as crucial regulators of the endodormancy cycle in rosaceous plants. Although pear DAM genes have been identified previously, the lack of a high-quality reference genome and techniques to study gene function have prevented accurate genome-wide analysis and functional verification of such genes. Additionally, the contribution of other genes to the regulation of endodormancy release remains poorly understood. In this study, a high-quality genome assembly for 'Cuiguan' pear (Pyrus pyrifolia), which is a leading cultivar with a low chilling requirement cultivated in China, was constructed using PacBio and Hi-C technologies. Using this genome sequence, we revealed that pear DAM genes were tandemly clustered on Chr8 and Chr15 and were differentially expressed in the buds between 'Cuiguan' and the high-chilling-requirement cultivar 'Suli' during the dormancy cycle. Using a virus-induced gene silencing system, we determined the repressive effects of DAM genes on bud break. Several novel genes potentially involved in the regulation of endodormancy release were identified by RNA sequencing and H3K4me3 chromatin immunoprecipitation sequencing analyses of 'Suli' buds during artificial chilling using the new reference genome. Our findings enrich the knowledge of the regulatory mechanism underlying endodormancy release and chilling requirements and provide a foundation for the practical regulation of dormancy release in fruit trees as an adaptation to climate change.
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Affiliation(s)
- Yuhao Gao
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Qinsong Yang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
- Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Haidian District, Beijing, 100083, China
| | - Xinhui Yan
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Xinyue Wu
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Feng Yang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Jianzhao Li
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
- College of Agriculture, Ludong University, Yantai, Shandong, 264025, China
| | - Jia Wei
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Junbei Ni
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Mudassar Ahmad
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Songling Bai
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
| | - Yuanwen Teng
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
- Hainan Institute of Zhejiang University, Sanya, Hainan, 572000, China
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Yang Q, Yang B, Li J, Wang Y, Tao R, Yang F, Wu X, Yan X, Ahmad M, Shen J, Bai S, Teng Y. ABA-responsive ABRE-BINDING FACTOR3 activates DAM3 expression to promote bud dormancy in Asian pear. PLANT, CELL & ENVIRONMENT 2020; 43:1360-1375. [PMID: 32092154 DOI: 10.1111/pce.13744] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 02/14/2020] [Accepted: 02/18/2020] [Indexed: 05/22/2023]
Abstract
Bud dormancy is indispensable for the survival of perennial plants in cold winters. Abscisic acid (ABA) has essential functions influencing the endo-dormancy status. Dormancy-associated MADS-box/SHORT VEGETATIVE PHASE-like genes function downstream of the ABA signalling pathway to regulate bud dormancy. However, the regulation of DAM/SVP expression remains largely uncharacterized. In this study, we confirmed that endo-dormancy maintenance and PpyDAM3 expression are controlled by the ABA content in pear (Pyrus pyrifolia) buds. The expression of pear ABRE-BINDING FACTOR3 (PpyABF3) was positively correlated with PpyDAM3 expression. Furthermore, PpyABF3 directly bound to the second ABRE in the PpyDAM3 promoter to activate its expression. Interestingly, both PpyABF3 and PpyDAM3 repressed the cell division and growth of transgenic pear calli. Another ABA-induced ABF protein, PpyABF2, physically interacted with PpyABF3 and disrupted the activation of the PpyDAM3 promoter by PpyABF3, indicating DAM expression was precisely controlled. Additionally, our results suggested that the differences in the PpyDAM3 promoter in two pear cultivars might be responsible for the diversity in the chilling requirements. In summary, our data clarify the finely tuned regulatory mechanism underlying the effect of ABA on DAM gene expression and provide new insights into ABA-related bud dormancy regulation.
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Affiliation(s)
- Qinsong Yang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Integrative Biology and Utilization of Horticultural Plants, Hangzhou, Zhejiang, China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou, Zhejiang, China
| | - Bo Yang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Integrative Biology and Utilization of Horticultural Plants, Hangzhou, Zhejiang, China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou, Zhejiang, China
| | - Jianzhao Li
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Integrative Biology and Utilization of Horticultural Plants, Hangzhou, Zhejiang, China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou, Zhejiang, China
| | - Yan Wang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Integrative Biology and Utilization of Horticultural Plants, Hangzhou, Zhejiang, China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou, Zhejiang, China
| | - Ruiyan Tao
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Integrative Biology and Utilization of Horticultural Plants, Hangzhou, Zhejiang, China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou, Zhejiang, China
| | - Feng Yang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Integrative Biology and Utilization of Horticultural Plants, Hangzhou, Zhejiang, China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou, Zhejiang, China
| | - Xinyue Wu
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Integrative Biology and Utilization of Horticultural Plants, Hangzhou, Zhejiang, China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou, Zhejiang, China
| | - Xinhui Yan
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Integrative Biology and Utilization of Horticultural Plants, Hangzhou, Zhejiang, China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou, Zhejiang, China
| | - Mudassar Ahmad
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Integrative Biology and Utilization of Horticultural Plants, Hangzhou, Zhejiang, China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou, Zhejiang, China
| | - Jiaqi Shen
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Integrative Biology and Utilization of Horticultural Plants, Hangzhou, Zhejiang, China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou, Zhejiang, China
| | - Songling Bai
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Integrative Biology and Utilization of Horticultural Plants, Hangzhou, Zhejiang, China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou, Zhejiang, China
| | - Yuanwen Teng
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Integrative Biology and Utilization of Horticultural Plants, Hangzhou, Zhejiang, China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, the Ministry of Agriculture of China, Hangzhou, Zhejiang, China
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Yang Q, Niu Q, Li J, Zheng X, Ma Y, Bai S, Teng Y. PpHB22, a member of HD-Zip proteins, activates PpDAM1 to regulate bud dormancy transition in 'Suli' pear (Pyrus pyrifolia White Pear Group). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 127:355-365. [PMID: 29677681 DOI: 10.1016/j.plaphy.2018.04.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 04/02/2018] [Accepted: 04/03/2018] [Indexed: 05/19/2023]
Abstract
Homeodomain-leucine zipper (HD-Zip) proteins, which form one of the largest and most diverse families, regulate many biological processes in plants, including differentiation, flowering, vascular development, and stress signaling. Abscisic acid (ABA) has been proved to be one of the key regulators of bud dormancy and to influence several HD-Zip genes expression. However, the role of HD-Zip genes in regulating bud dormancy remains unclear. We identified 47 pear (P. pyrifolia White Pear Group) HD-Zip genes, which were classified into four subfamilies (HD-Zip I-IV). We further revealed that gene expression levels of some HD-Zip members were closely related to ABA concentrations in flower buds during dormancy transition. Exogenous ABA treatment confirmed that PpHB22 and several other HD-Zip genes responded to ABA. Yeast one-hybrid and dual luciferase assay results combining subcellular localization showed that PpHB22 was present in nucleus and directly induced PpDAM1 (dormancy associated MADS-box 1) expression. Thus, PpHB22 is a negative regulator of plant growth associated with the ABA response pathway and functions upstream of PpDAM1. These findings enrich our understanding of the function of HD-Zip genes related to the bud dormancy transition.
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Affiliation(s)
- Qinsong Yang
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, China; The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, The Ministry of Agriculture of China, Hangzhou, Zhejiang 310058, China; Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou, Zhejiang 310058, China
| | - Qingfeng Niu
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, China; The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, The Ministry of Agriculture of China, Hangzhou, Zhejiang 310058, China; Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou, Zhejiang 310058, China
| | - Jianzhao Li
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, China; The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, The Ministry of Agriculture of China, Hangzhou, Zhejiang 310058, China; Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou, Zhejiang 310058, China
| | - Xiaoyan Zheng
- Institute of Horticulture and Landscape, College of Ecology, Lishui University, Lishui, Zhejiang 323000, China
| | - Yunjing Ma
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, China; The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, The Ministry of Agriculture of China, Hangzhou, Zhejiang 310058, China; Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou, Zhejiang 310058, China
| | - Songling Bai
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, China; The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, The Ministry of Agriculture of China, Hangzhou, Zhejiang 310058, China; Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou, Zhejiang 310058, China.
| | - Yuanwen Teng
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, China; The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, The Ministry of Agriculture of China, Hangzhou, Zhejiang 310058, China; Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou, Zhejiang 310058, China.
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A collection of European sweet cherry phenology data for assessing climate change. Sci Data 2016; 3:160108. [PMID: 27922629 PMCID: PMC5139674 DOI: 10.1038/sdata.2016.108] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 10/18/2016] [Indexed: 11/08/2022] Open
Abstract
Professional and scientific networks built around the production of sweet cherry (Prunus avium L.) led to the collection of phenology data for a wide range of cultivars grown in experimental sites characterized by highly contrasted climatic conditions. We present a dataset of flowering and maturity dates, recorded each year for one tree when available, or the average of several trees for each cultivar, over a period of 37 years (1978-2015). Such a dataset is extremely valuable for characterizing the phenological response to climate change, and the plasticity of the different cultivars' behaviour under different environmental conditions. In addition, this dataset will support the development of predictive models for sweet cherry phenology exploitable at the continental scale, and will help anticipate breeding strategies in order to maintain and improve sweet cherry production in Europe.
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