Genomic Architecture Predicts Tree Topology, Population Structuring, and Demographic History in Amazonian Birds.

ABSTRACT: Geographic barriers are frequently invoked to explain genetic structuring across the landscape. However, inferences on the spatial and temporal origins of population variation have been largely limited to evolutionary neutral models, ignoring the potential role of natural selection and intrinsic genomic processes known as genomic architecture in producing heterogeneity in differentiation across the genome. To test how variation in genomic characteristics (e.g. recombination rate) impacts our ability to reconstruct general patterns of differentiation between species that cooccur across geographic barriers, we sequenced the whole genomes of multiple bird populations that are distributed across rivers in southeastern Amazonia. We found that phylogenetic relationships within species and demogr

SUBMITTER: Thom G 

PROVIDER: S-EPMC10823491 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature