Secondary contacts and genetic admixture shape colonization by an amphiatlantic epibenthic invertebrate.

ABSTRACT: Research on the genetics of invasive species often focuses on patterns of genetic diversity and population structure within the introduced range. However, a growing body of literature is demonstrating the need to study how native genotypes affect both ecological and evolutionary mechanisms within the introduced range. Here, we used genotyping-by-sequencing to study both native and introduced ranges of the amphiatlantic marine invertebrate Ciona intestinalis. A previous study using microsatellites analysed samples collected along the Swedish west coast and showed the presence of genetically distinct lineages in deep and shallow waters. Using 1,653 single nucleotide polymorphisms (SNPs) from newly collected samples (285 individuals), we first confirmed the presence of this depth-defin

SUBMITTER: Hudson J 

PROVIDER: S-EPMC7045719 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature