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Title
Conservation Genetics of Crested newt species Triturus cristatus and T. carnifex within a contact zone in Central Europe : impact of interspecific introgression and gene flow
AuthorMaletzky, Andreas ; Kaiser, Roland ; Mikulíček, Peter
Published in
Diversity, Basel, 2010, Vol. 2010, Issue 2, page 28-46
PublishedMDPI, 2010
LanguageEnglish
Document typeJournal Article
Keywords (EN)Bayesian analysis / genetic diversity / microsatellites / spatial statistics / Triturus cristatus superspecies
ISSN1424-2818
URNurn:nbn:at:at-ubs:3-5921 Persistent Identifier (URN)
DOI10.3390/d2010028 
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 The work is publicly available
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Conservation Genetics of Crested newt species Triturus cristatus and T. carnifex within a contact zone in Central Europe [0.78 mb]
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Abstract (English)

We have studied the population genetic structure of slightly admixed populations of crested newts (Triturus cristatus and T. carnifex) in a continuously fragmented landscape, located in northern Salzburg (Austria) and neighbouring Bavaria (Germany). Crested newts are listed as Critically Endangered in the provincial Red List of Salzburg and strictly protected by the EU Habitats Directive. We used seven polymorphic microsatellite loci to evaluate genetic diversity and processes that may determine the genetic architecture of populations. Genetic diversity was moderate, pairwise FST-values were comparatively high showing significant genetic differentiation and limited gene flow. Isolation by distance was significant for the whole data set, but not significant when calculated for T. cristatus- and T. carnifex-like populations separately. Bayesian analyses of population structure, using three different programs showed similar results. Spatial statistics reveal that the geographical isolation of populations is very high.

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