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Genomic analysis reveals complex population structure within the smooth newt, Lissotriton vulgaris, in Central Europe.

Herczeg, Dávid ; Palomar, Gemma ; Zieliński, Piotr ; van Riemsdijk, Isolde LU ; Babik, Wiesław ; Dankovics, Róbert ; Halpern, Bálint ; Cvijanović, Milena and Vörös, Judit (2023) In Ecology and Evolution 13(9). p.10478-10478
Abstract

Species with wide-range distributions usually display high genetic variation. This variation can be partly explained by historical lineages that were temporally isolated from each other and are back into secondary reproductive contact, and partly by local adaptations. The smooth newt (
Lissotriton vulgaris) is one of the most widely distributed amphibians species across Eurasia and forms a species complex with a partially overlapping distribution and morphology. In the present study, we explored the population genomic structure of smooth newt lineages in the Carpathian Basin (CB) relying on single-nucleotide polymorphisms. Our dataset included new and previously published data to study the secondary contact zone between lineages in... (More)

Species with wide-range distributions usually display high genetic variation. This variation can be partly explained by historical lineages that were temporally isolated from each other and are back into secondary reproductive contact, and partly by local adaptations. The smooth newt (
Lissotriton vulgaris) is one of the most widely distributed amphibians species across Eurasia and forms a species complex with a partially overlapping distribution and morphology. In the present study, we explored the population genomic structure of smooth newt lineages in the Carpathian Basin (CB) relying on single-nucleotide polymorphisms. Our dataset included new and previously published data to study the secondary contact zone between lineages in the CB and also tested for the barrier effect of rivers to gene flow between these lineages. We confirmed the presence of the South
L. v. vulgaris Lineage distributed in Transdanubia and we provided new distribution records of
L. v. ampelensis inhabiting the eastern territories of the CB. High genetic diversity of smooth newts was observed, especially in the North Hungarian Mountains and at the interfluves of the main rivers in the South with four distinct lineages of
L. v. vulgaris and one lineage of
L. v. ampelensis showing a low level of admixture with the spatially closest
L. v. vulgaris lineage. Moreover, admixture detected at the interfluve of the main rivers (i.e. Danube and Tisza) suggested a secondary contact zone in the area. Finally, we found that the river Danube has a very weak effect on population divergence, while the river Tisza is a geographical barrier limiting gene flow between smooth newt lineages. As the range boundaries of
L. v. vulgaris and
L. v. ampelensis in the CB coincide with the river Tisza, our study underpins the influence of rivers in lineage diversification.

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author
; ; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Ecology and Evolution
volume
13
issue
9
pages
10478 - 10478
publisher
Wiley-Blackwell
external identifiers
  • scopus:85169598565
  • pmid:37664508
ISSN
2045-7758
DOI
10.1002/ece3.10478
language
English
LU publication?
yes
additional info
© 2023 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.
id
b736712c-cc2f-4968-8ec6-c1ca4f062917
date added to LUP
2023-09-11 17:26:37
date last changed
2024-04-20 03:05:44
@article{b736712c-cc2f-4968-8ec6-c1ca4f062917,
  abstract     = {{<p>Species with wide-range distributions usually display high genetic variation. This variation can be partly explained by historical lineages that were temporally isolated from each other and are back into secondary reproductive contact, and partly by local adaptations. The smooth newt (<br>
 Lissotriton vulgaris) is one of the most widely distributed amphibians species across Eurasia and forms a species complex with a partially overlapping distribution and morphology. In the present study, we explored the population genomic structure of smooth newt lineages in the Carpathian Basin (CB) relying on single-nucleotide polymorphisms. Our dataset included new and previously published data to study the secondary contact zone between lineages in the CB and also tested for the barrier effect of rivers to gene flow between these lineages. We confirmed the presence of the South<br>
 L. v. vulgaris Lineage distributed in Transdanubia and we provided new distribution records of <br>
 L. v. ampelensis inhabiting the eastern territories of the CB. High genetic diversity of smooth newts was observed, especially in the North Hungarian Mountains and at the interfluves of the main rivers in the South with four distinct lineages of <br>
 L. v. vulgaris and one lineage of <br>
 L. v. ampelensis showing a low level of admixture with the spatially closest<br>
 L. v. vulgaris lineage. Moreover, admixture detected at the interfluve of the main rivers (i.e. Danube and Tisza) suggested a secondary contact zone in the area. Finally, we found that the river Danube has a very weak effect on population divergence, while the river Tisza is a geographical barrier limiting gene flow between smooth newt lineages. As the range boundaries of <br>
 L. v. vulgaris and <br>
 L. v. ampelensis in the CB coincide with the river Tisza, our study underpins the influence of rivers in lineage diversification.<br>
 </p>}},
  author       = {{Herczeg, Dávid and Palomar, Gemma and Zieliński, Piotr and van Riemsdijk, Isolde and Babik, Wiesław and Dankovics, Róbert and Halpern, Bálint and Cvijanović, Milena and Vörös, Judit}},
  issn         = {{2045-7758}},
  language     = {{eng}},
  month        = {{09}},
  number       = {{9}},
  pages        = {{10478--10478}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Ecology and Evolution}},
  title        = {{Genomic analysis reveals complex population structure within the smooth newt, 
        Lissotriton vulgaris, in Central Europe.}},
  url          = {{http://dx.doi.org/10.1002/ece3.10478}},
  doi          = {{10.1002/ece3.10478}},
  volume       = {{13}},
  year         = {{2023}},
}