Admixture determines genetic diversity and population differentiation in the biological invasion of a lizard species.

ABSTRACT: Molecular genetic analyses show that introduced populations undergoing biological invasions often bring together individuals from genetically disparate native-range source populations, which can elevate genotypic variation if these individuals interbreed. Differential admixture among multiple native-range sources explains mitochondrial haplotypic diversity within and differentiation among invasive populations of the lizard Anolis sagrei. Our examination of microsatellite variation supports the hypothesis that lizards from disparate native-range sources, identified using mtDNA haplotypes, form genetically admixed introduced populations. Furthermore, within-population genotypic diversity increases with the number of sources and among-population genotypic differentiation reflects disparity in

SUBMITTER: Kolbe JJ 

PROVIDER: S-EPMC2610154 | biostudies-literature | 2008 Aug

REPOSITORIES: biostudies-literature