Population genomics reveal rapid genetic differentiation in a recently invasive population of Rattus norvegicus.

ABSTRACT:

Background

Invasive species bring a serious effect on local biodiversity, ecosystems, and even human health and safety. Although the genetic signatures of historical range expansions have been explored in an array of species, the genetic consequences of contemporary range expansions have received little attention, especially in mammal species. In this study, we used whole-genome sequencing to explore the rapid genetic change and introduction history of a newly invasive brown rat (Rattus norvegicus) population which invaded Xinjiang Province, China in the late 1970s.

Results

Bayesian clustering analysis, principal components analysis, and phylogenetic analysis all showed clear genetic differentiation between newly introduced and native rat populations. Reduced genetic diversi

SUBMITTER: Chen Y 

PROVIDER: S-EPMC7836188 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature