Population transcriptomics reveals the effect of gene flow on the evolution of range limits.

ABSTRACT: One of the most important questions in evolutionary biology is how the spatial distribution of species is limited. Asymmetric gene flow from core populations is suggested to increase the number of poorly adapted immigrants in the populations at the range edge. Genetic load due to migration, i.e., migration load, should prevent adaptation to the local habitat, leading to decreases in distribution range via local extinction or the limiting range expansion. However, few experimental studies have examined the effects of immigration on fitness and natural selection within recipient populations. To investigate the influence of migration load on the evolution of distribution range, we performed field and laboratory observations as well as population transcriptomics for the common river snail, Sem

SUBMITTER: Tamagawa K 

PROVIDER: S-EPMC8789792 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature