Collaborative Research: Ecological Genetics of Response to Light in Arabidopsis thaliana (Brassicaceae)

9527551 Pigliucci我们建议在实验上确定模式植物拟南芥系统中植物形态如何随着光可获得性的变化而变化。通过控制拟南芥遗传同源品系的种植密度，可以改变光的可获得性。我们将确定在这种条件下，对弱光做出反应的形态变化是否会增加植物存活和产生后代的可能性。我们还将研究几个突变体对不同光条件的反应，以确定哪些基因对这种形态变化负责。这项研究将更好地理解胁迫对植物进化的影响，并对培育在拥挤条件下表现良好的作物具有指导意义。

9527551 PIGLIUCCI We propose to experimentally determine how plant morphology changes in response to variation in light availability in the model plant system, Arabidopsis thaliana. Light availability will be varied by manipulating plant density of genetically homogenous lines of Arabidopsis. We will determine whether morphological changes in response to low light increase the probability of a plant surviving and producing offspring under such conditions. We will also investigate the response of several mutants of A. thaliana to different light conditions to determine which genes are responsible for this morphological change. This research will provide a better understanding of the effect of stress on plant evolution, and it has implications for breeding crops that perform well in crowded conditions.