Effects of geographic distance, sea barriers and habitat on the genetic structure and diversity of all-hybrid water frog populations.

ABSTRACT: The history of population size and migration patterns leaves its mark in the genetics of populations. We investigate the genetic structure of the edible frog, Pelophylax esculentus in the Danish archipelago and adjacent countries. This frog is of particular interest because it is a hybrid that, in this area, forms all-hybrid populations of diploid (LR) and triploid (LLR and LRR) genomotypes with no (or very few) adults of the parental species (LL and RR). This study is the first to cover the entire geographic range of Danish, Swedish and German all-hybrid populations, documenting their extent and providing a broad picture of their diversity of neutral genetic markers and genomotype proportions. With 18 microsatellite markers, we found that genetic diversity declines northwards in agreement

SUBMITTER: Christiansen DG 

PROVIDER: S-EPMC3183848 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature