Ancestral polymorphisms shape the adaptive radiation of Metrosideros across the Hawaiian Islands.

ABSTRACT: Some of the most spectacular adaptive radiations begin with founder populations on remote islands. How genetically limited founder populations give rise to the striking phenotypic and ecological diversity characteristic of adaptive radiations is a paradox of evolutionary biology. We conducted an evolutionary genomics analysis of genus Metrosideros, a landscape-dominant, incipient adaptive radiation of woody plants that spans a striking range of phenotypes and environments across the Hawaiian Islands. Using nanopore-sequencing, we created a chromosome-level genome assembly for Metrosideros polymorpha var. incana and analyzed whole-genome sequences of 131 individuals from 11 taxa sampled across the islands. Demographic modeling and population genomics analyses suggested

SUBMITTER: Choi JY 

PROVIDER: S-EPMC8449318 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature