Ancient rivers shaped the current genetic diversity of the wood mouse (Apodemus speciosus) on the islands of the Seto Inland Sea, Japan.

ABSTRACT: The current distributions of organisms have been shaped by both current and past geographical barriers. However, it remains unclear how past geographical factors-currently cryptic on the sea floor-affected the current distributions of terrestrial animals. Here, we examined the effects of currently cryptic ancient rivers on current genetic differentiation of the large Japanese wood mouse, Apodemus speciosus, which inhabits islands in the Seto Inland Sea, Japan. Genome-wide polymorphisms were identified by GRAS-Di (Genotyping by Random Amplicon Sequencing, Direct) analysis of 92 A. speciosus individuals. Maximum-likelihood analysis was performed with 94,142 single nucleotide polymorphisms (SNPs) identified by GRAS-Di analyses. Ancient rivers were visualized by Geographic Information System (

SUBMITTER: Sato JJ 

PROVIDER: S-EPMC9210816 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature