10.5061/DRYAD.211CK
Zieliński, Piotr
Jagiellonian University
Dudek, Katarzyna
Jagiellonian University
Stuglik, Michał Tadeusz
Jagiellonian University
Liana, Marcin
Jagiellonian University
Babik, Wiesław
Jagiellonian University
Data from: Single nucleotide polymorphisms reveal genetic structuring of
the Carpathian newt and provide evidence of interspecific gene flow in the
nuclear genome
Dryad
dataset
2015
Lissotriton vulgaris
Lissotriton montandoni
refugia
2015-04-23T00:00:00Z
2015-04-23T00:00:00Z
en
https://doi.org/10.1371/journal.pone.0097431
290545 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Genetic variation within species is commonly structured in a hierarchical
manner which may result from superimposition of processes acting at
different spatial and temporal scales. In organisms of limited dispersal
ability, signatures of past subdivision are detectable for a long time.
Studies of contemporary genetic structure in such taxa inform about the
history of isolation, range changes and local admixture resulting from
geographically restricted hybridization with related species. Here we use
a set of 139 transcriptome-derived, unlinked nuclear single nucleotide
polymorphisms (SNP) to assess the genetic structure of the Carpathian newt
(Lissotriton montandoni, Lm) and introgression from its congener, the
smooth newt (L. vulgaris, Lv). Two substantially differentiated groups of
Lm populations likely originated from separate refugia, both located in
the Eastern Carpathians. The colonization of the present range in
north-western and south-western directions was accompanied by a modest
loss of variation; admixture between the two groups has occurred in the
middle of the Eastern Carpathians. Local, apparently recent introgression
of Lv alleles into several Lm populations was detected, demonstrating
increased power for admixture detection in comparison to a previous study
based on a limited number of microsatellite markers. The level of
introgression was higher in Lm populations classified as admixed than in
syntopic populations. We discuss the possible causes and propose further
tests to distinguish between alternatives. Several outlier loci were
identified in tests of interspecific differentiation, suggesting genomic
heterogeneity of gene flow between species.
SNP GenotypesFile containing individual SNP genotypes in genepop like
format.SNP_mon_vul.xlsx
Carpathians
Central Europe