A reductionist approach to dissecting grain weight and yield in wheat.

A reductionist approach to dissecting grain weight and yield in wheat.
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一种还原主义的方法,用于剖析小麦的晶粒重量和产量。

DOI:
10.1111/jipb.12741
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发表时间:
2019-03
影响因子:
11.4
通讯作者:
Uauy C
Uauy C
中科院分区:
生物学1区
文献类型:
--
作者:
Brinton J;Uauy C

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谷物产量是一种高度多基因性状,受环境影响,并整合了植物整个生命周期的事件。在小麦中,谷物产量的主要组成部分之间往往存在补偿效应,再加上小麦的多倍体性质,使得它们的遗传和生理研究具有挑战性。我们提出一种还原论和系统方法作为了解调节每个单独产量组成部分的基因网络的第一步。在这里,我们重点关注谷物重量,并讨论检查各个子成分的重要性,不仅有助于对其进行遗传解剖,而且有助于我们对它们之间的相互关系有机械性的理解。这些知识应该允许开发跨同源物和互补作用模式之间的新组合,从而推进更综合的产量提高策略。我们认为这将打破表型变异方面的障碍,增强我们对产量生理学的理解,并有可能提高农场产量。
Grain yield is a highly polygenic trait that is influenced by the environment and integrates events throughout the life cycle of a plant. In wheat, the major grain yield components often present compensatory effects among them, which alongside the polyploid nature of wheat, makes their genetic and physiological study challenging. We propose a reductionist and systematic approach as an initial step to understand the gene networks regulating each individual yield component. Here, we focus on grain weight and discuss the importance of examining individual sub‐components, not only to help in their genetic dissection, but also to inform our mechanistic understanding of how they interrelate. This knowledge should allow the development of novel combinations, across homoeologs and between complementary modes of action, thereby advancing towards a more integrated strategy for yield improvement. We argue that this will break barriers in terms of phenotypic variation, enhance our understanding of the physiology of yield, and potentially deliver improved on‐farm yield.
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