A role of asynchrony of seasons in explaining genetic differentiation in a Neotropical toad.

ABSTRACT: The process of diversification can be studied at the phylogeographic level by attempting to identify the environmental features that promote and maintain population divergence. Here we investigate diversification in Rhinella granulosa, a Neotropical toad from northeastern Brazil, by testing a range of hypotheses that encompass different putative mechanisms reducing gene flow among populations. We sequenced single nucleotide polymorphisms and examined individual predictions related to the role of geographic barriers (rivers), ecological gradients, historical habitat stability, and spatial variation in climate seasonality, also known as the asynchrony of seasons hypothesis. This hypothesis postulates that temporal asynchrony of wet and dry seasons over short distances causes parapatric popul

SUBMITTER: Thome MTC 

PROVIDER: S-EPMC8478927 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature