Adaptive and non-adaptive divergence in a common landscape.

ABSTRACT: Species in a common landscape often face similar selective environments. The capacity of organisms to adapt to these environments may be largely species specific. Quantifying shared and unique adaptive responses across species within landscapes may thus improve our understanding of landscape-moderated biodiversity patterns. Here we test to what extent populations of two coexisting and phylogenetically related fishes-three-spined and nine-spined stickleback-differ in the strength and nature of neutral and adaptive divergence along a salinity gradient. Phenotypic differentiation, neutral genetic differentiation and genomic signatures of adaptation are stronger in the three-spined stickleback. Yet, both species show substantial phenotypic parallelism. In contrast, genomic signatures of adapta

SUBMITTER: Raeymaekers JAM 

PROVIDER: S-EPMC5559485 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature