Department of Ecology and Evolution, University of Chicago, Chicago, IL, United States.
Evolution. 2023 Jul 27;77(8):1912-1913. doi: 10.1093/evolut/qpad105.
Does gene flow disrupt or facilitate the evolution of parasite resistance in host populations? Lewis et al. use a host-parasite system consisting of Caenorhabditis elegans (host) and Serratia marcescens (parasite) to test the effect of gene flow on adaptation. They find that gene flow from parasite-resistant host populations with divergent genetic backgrounds promotes adaptation to parasites (increased resistance). Findings from this study can be used to address more complex cases of gene flow and can be applied in conservation efforts.
基因流是破坏还是促进宿主种群寄生虫抗性的进化？刘易斯等人使用秀丽隐杆线虫（宿主）和粘质沙雷氏菌（寄生虫）组成的宿主-寄生虫系统来检验基因流对适应的影响。他们发现，来自具有不同遗传背景的寄生虫抗性宿主群体的基因流促进了对寄生虫的适应（增加了抗性）。本研究的结果可用于解决更复杂的基因流情况，并可应用于保护工作。
