Analysis of genetic mechanism determining the crop environmental response by coordinating crop growth model and genetic model

长期以来，作物基因型与环境相互作用一直是育种和作物生理研究的重要领域，在气候变化的背景下，这一研究将变得更加重要。到目前为止，基因型和环境对作物表型的影响分析比较独立，但应更多地进行交互分析。在这项研究中，我们培育了174个从Koshihikari/Kasalath衍生的水稻基因型，这些基因型的遗传信息在5个不同生长环境的位点已知。在此基础上，采用作物生长模型和遗传模型相结合的分析方法，对抽穗期的环境响应进行了分析。该方法可以检测到与抽穗环境反应相关的染色体特定区域，其中一些区域无法用传统的单一环境数据方法检测到，因此可以用于弥合基因和作物环境反应之间的差距。

The crop genotypes and environment interaction has long been a major field of the study in both breeding and crop physiology, and will become more important in the future under climate change. Up to now, the effects of genotypes and environments on crop phenotypes are analyzed rather independently, but should be analyzed more interactively. In this study, we grew 174 rice genotypes derived form Koshihikari/Kasalath whose genetic information is known at five sites that are widely different in their growth environments. We then analyzed environmental responses of heading stage with a new analytical method coupling crop growth model and genetic model. This proposed method detected specific regions of chromosomes that are linked to environmental responses of heading, some of which could not be detected with a conventional method using single-environment data, so can be used to bridge gaps between genes and environmental responses of the crop.