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中国农业科学院作科所童红宁研究员与中国科学院遗传发育所储成才研究员应邀在Trends in Plant Science上联合发表题为“Functional Specificities of Brassinosteroid and Potential Utilization for Crop Improvement”的综述论文,系统阐述了植物甾醇类激素油菜素内酯在水稻中的特异性功能作用机制及其在作物分子设计育种中的应用策略。
油菜素内酯控制着水稻叶夹角、株高、粒型等多个重要农艺性状,在农业生物技术上具有重要应用潜力。水稻中的一系列研究表明,此激素在不同环境下对不同性状的控制在下游具有相对特异的信号通路,例如,油菜素内酯通过控制赤霉素代谢来调控水稻株高(Tong et al., Plant Cell, 2012; 2014; 2016),而通过调控OsGRF4功能调控水稻粒长(Che et al., Nature Plants, 2015),并且不同水平的油菜素内酯对水稻不同组织的生长发育具有不同甚至相反的调控功能。鉴定相应通路的特异组分可用于对某一性状进行定向改造,从而辅助分子设计育种。
论文于2018年9月13日在线发表(https://doi.org/10.1016/j.tplants.2018.08.007),该研究得到国家基金委重大研究计划及优秀青年基金项目支持。
推荐阅读:
Tong H and Chu C (2018) Functional Specificities of Brassinosteroid and Potential Utilization for Crop Improvement. Trends Plant Sci. Doi: 10.1016/j.tplants.2018.08.007.
Tong H and Chu C (2016) Reply: Brassinosteroid regulates gibberellin synthesis to promote cell elongation in rice: Critical comments on Ross and Quittenden’s letter. Plant Cell 28(4): 833-835.
Che R, Tong H, Shi B, Liu Y, Fang S, Liu D, Xiao Y, Hu B, Liu L, Wang H, Zhao M, Chu C (2015) Control of grain size and rice yield by GL2-mediated brassinosteroid responses. Nature Plants 2: 15195.
Tong H, Xiao Y, Liu D, Gao S, Liu L, Yin Y, Jin Y, Qian Q, Chu C (2014) Brassinosteroid regulates cell elongation by modulating gibberellin metabolism in rice. Plant Cell 26(11): 4376-4393.
Tong H and Chu C (2012) Brassinosteroid signaling and application in rice, J. Genet. Genomics, 39(1):3-9.
Tong H, Liu L, Jin Y, Du L, Yin Y, Qian Q, Zhu L, Chu C (2012) DWARF AND LOW-TILLERING acts as a direct downstream target of a GSK3/SHAGGY-like kinase to mediate brassinosteroid responses in rice. Plant Cell 24(6): 2562–2577.
Tong H and Chu C (2009) Roles of DLT in fine modulation on brassinosteroid response in rice, Plant Sig. Behav. 4(5): 438 - 439.
Tong H, Jin Y, Liu W, Li F, Fang J, Yin Y, Qian Q, Zhu L, Chu C (2009) DWARF AND LOW-TILLERING, a new member of GRAS family, plays positive roles in brassinosteroid signaling in rice. Plant J. 58: 803-816.
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