Testing the role of ancient and contemporary landscapes on structuring genetic variation in a specialist grasshopper.

ABSTRACT: Understanding the processes underlying spatial patterns of genetic diversity and structure of natural populations is a central topic in evolutionary biogeography. In this study, we combine data on ancient and contemporary landscape composition to get a comprehensive view of the factors shaping genetic variation across the populations of the scrub-legume grasshopper (Chorthippus binotatus binotatus) from the biogeographically complex region of southeast Iberia. First, we examined geographical patterns of genetic structure and employed an approximate Bayesian computation (ABC) approach to compare different plausible scenarios of population divergence. Second, we used a landscape genetic framework to test for the effects of (1) Late Miocene paleogeography, (2) Pleistocene climate fluct

SUBMITTER: Noguerales V 

PROVIDER: S-EPMC5415511 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature