Function and diversification of MADS-box genes in rice.
Function and diversification of MADS-box genes in rice.
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DOI：
10.1100/tsw.2006.320
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发表时间：
2006-07-06
影响因子：
--
通讯作者：
Hirano HY
中科院分区：
文献类型：
--
作者：
Yamaguchi T;Hirano HY
MADS-box基因在开花植物的许多发育过程中起着关键作用，如花器官特性的指定、开花时间的控制和果实发育的调节。由于其在花发育中的重要作用，MADS-box基因家族的多样性被认为是开花植物辐射过程中花多样性的一个主要因素。草本植物的花序和花具有独特的结构，这与优树的不同。因此，MADS-box基因功能的多样化可能是禾本科植物花和花序形态分化的关键驱动力。事实上，最近的遗传学研究进展表明，MADS-box基因在水稻花发育中发挥作用，支持MADS-box基因的功能多样化参与被子植物进化的观点。本文综述了水稻MADS-box基因主要亚家族的功能，并讨论了它们在水稻花和花序发育进化中的作用。
MADS-box genes play critical roles in a number of developmental processes in flowering plants, such as specification of floral organ identity, control of flowering time, and regulation of fruit development. Because of their crucial functions in flower development, diversification of the MADS-box gene family has been suggested to be a major factor responsible for floral diversity during radiation of the flowering plants. Inflorescences and flowers in the grass species have unique structures that are distinct from those in eudicots. Thus, it is plausible that the diversification of the function of MADS-box genes may have been a key driving force in the morphological divergence of the flowers and inflorescences in the grasses. Indeed, recent progress in genetic studies has shown that MADS-box genes function in flower development in Oryza sativa (rice), in support of the idea that functional diversification of the MADS-box genes was involved in evolution of the angiosperms. In this review, we summarize the functions of the major subfamilies of the MADS-box genes in rice and discuss their role in the development and evolution of rice flowers and inflorescences.
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