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    ANNU REV PLANT BIOL:Genetic Regulation of Shoot Architecture

    发布人: 何俊    发布日期: 2018年04月05日 20:33    浏览次数:

    ANNU REV PLANT BIOL:茎尖结构的遗传调控机制(综述)


     

     

    Genetic Regulation of Shoot Architecture


    First author: Bing Wang; Affiliations: Institute of Genetics and Developmental Biology, Chinese Academy of Sciences (中科院遗传与发育生物学研究所): BeijingChina

    Corresponding author: Jiayang Li (李家洋)


    Shoot architecture is determined by the organization and activities of apical, axillary, intercalary, secondary, and inflorescence meristems and by the subsequent development of stems, leaves, shoot branches, and inflorescences. In this review, we discuss the unifying principles (统一原理) of hormonal and genetic control of shoot architecture including advances in our understanding of lateral branch outgrowth; control of stem elongation, thickness, and angle; and regulation of inflorescence development. We focus on recent progress made mainly in Arabidopsis thaliana, rice, pea, maize, and tomato, including the identification of new genes and mechanisms controlling shoot architecture. Key advances include elucidation (阐明) of mechanisms by which strigolactones (独脚金内酯), auxins, and genes such as IDEAL PLANT ARCHITECTURE1 and TEOSINTE BRANCHED1 control shoot architecture. Knowledge now available provides a foundation for rational approaches to crop breeding and the generation of ideotypes with defined architectural features to improve performance and productivity.




    茎尖结构是由顶端、叶腋、居间、次生和花序分生组织的排序和活性及随后茎、叶、侧枝和花序的发育所共同决定的。本文综述了茎尖结构生理及遗传上的调控机制,包括目前对于侧枝生长,茎伸长、增厚和角度,以及花序发育调控的最新研究进展。作者主要聚焦于拟南芥、水稻、豌豆、玉米和番茄中的最新研究进展,同时包括一些控制茎尖结构的新基因和分子机制的鉴定。主要的成就主要包括阐释了独脚金内酯、生长素、以及IPA1和TB1等基因调控茎尖结构的分子机理。目前的最新研究进展为未来制定合理的作物育种方法及获得理想结构以提升作物质量和产量提供了基础。



    doi: https://doi.org/10.1146/annurev-arplant-042817-040422