Data from: Does selfing or outcrossing promote local adaptation?
收藏资源简介:
The degree to which plants self-fertilize may impact their potential for genetic adaptation. Given that the mating system influences genetic processes within and among populations, the mating system could limit or promote local adaptation. I conducted a literature survey of published reciprocal transplant experiments in plant populations to quantify the effect of mating system on the magnitude of local adaptation. Mating system had no effect on local adaptation. I detected no effect when species were categorized as either self-compatible or self-incompatible or when accounting for environmental differences between source populations. The results suggest that, despite limited genetic variation in selfing species and greater potential for gene flow in outcrossing species, mating system has little influence on adaptation of populations.
植物自交的程度可能会影响其遗传适应(genetic adaptation)的潜能。鉴于交配系统会影响种群内部及种群间的遗传过程,其可能会限制或促进本地适应(local adaptation)。本研究针对已发表的植物种群互惠移植实验(reciprocal transplant experiment)开展了文献调研,以量化交配系统对本地适应程度的影响。研究发现,交配系统对本地适应未产生影响:当将物种划分为自交亲和(self-compatible)或自交不亲和(self-incompatible)类群,或是考虑源种群(source populations)间的环境差异时,均未检测到交配系统的作用。上述结果表明,尽管自交物种的遗传变异有限,而异交物种的基因流潜能更高,但交配系统对种群适应的影响微乎其微。



