Species-specific habitat preferences do not shape the structure of a crested newt hybrid zone (Triturus cristatus x T. carnifex).

ABSTRACT: Reproductive isolation barriers maintain the integrity of species by preventing interspecific gene flow. They involve temporal, habitat or behavioral isolation acting before fertilization, and postzygotic isolation manifested as hybrid mortality or sterility. One of the approaches of how to study reproductive isolation barriers is through the analysis of hybrid zones. In this paper, we describe the structure of a hybrid zone between two crested newt species (Triturus cristatus and T. carnifex) in the southern part of the Czech Republic using morphological, microsatellite, and mitochondrial (mtDNA) markers. Specifically, we tested the hypothesis that the structure of the hybrid zone is maintained by species-specific habitat preferences. Comparing the genetic structure of popul

SUBMITTER: Macat Z 

PROVIDER: S-EPMC6875670 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature