Demography and selection analysis of the incipient adaptive radiation of a Hawaiian woody species.

ABSTRACT: Ecological divergence in a species provides a valuable opportunity to study the early stages of speciation. We focused on Metrosideros polymorpha, a unique example of the incipient radiation of woody species, to examine how an ecological divergence continues in the face of gene flow. We analyzed the whole genomes of 70 plants collected throughout the island of Hawaii, which is the youngest island with the highest altitude in the archipelago and encompasses a wide range of environments. The continuous M. polymorpha forest stands on the island of Hawaii were differentiated into three genetic clusters, each of which grows in a distinctive environment and includes substantial genetic and phenotypic diversity. The three genetic clusters showed signatures of selection in genomic regions encompas

SUBMITTER: Izuno A 

PROVIDER: S-EPMC8782371 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature