Evolution of adaptive trraits to climate change in a wild relative of Arabidopsis thaliana distributed along wide altitudinal ranges.

遗传变异在海拔等环境梯度上的变化为适应进化的遗传基础提供了认识。拟南芥。kamchatica是拟南芥的野生亲缘种，分布在较宽的海拔梯度上。在本研究中，我们利用坎查atica的广泛的海拔分布来探索其局部适应的遗传基础。下一代测序对8个候选基因的筛选结果表明，毛状体基因GL1和光受体基因PHYB是自然选择的结果，与海拔高度适应有关。

Genetic variation along environmental gradients such as altitude provides understanding to genetic basis of adaptive evolution. Arabidopsis kamchatica subsp. kamchatica, a wild relative of A. thaliana, occurs along wide altitudinal gradients. In this study, we took advantage of the wide altitudinal distribution of A. kamchatica to detect the genetic basis of local adaptation. The results of screening on eight candidate genes by next generation sequencing indiicate that GL1, a trichome gene, and PHYB, a photorecetor gene, are under natural selection and are associated with altitudinal adaptation.