A pattern of hybridisation and population genetic structure of two water frog species (Ranidae, Amphibia) in the southwestern Balkans

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F25%3A10137098" target="_blank" >RIV/00023272:_____/25:10137098 - isvavai.cz</a>

Alternative codes found

RIV/67985904:_____/25:00637124 RIV/00216224:14310/25:00141380 RIV/61988987:17310/25:A2603DOP RIV/00216208:11310/25:10511312

Result on the web

<a href="https://onlinelibrary.wiley.com/doi/10.1111/zsc.12723" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1111/zsc.12723</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/zsc.12723" target="_blank" >10.1111/zsc.12723</a>

Result language

angličtina

Original language name

A pattern of hybridisation and population genetic structure of two water frog species (Ranidae, Amphibia) in the southwestern Balkans

Original language description

The distribution of the neutral component of genetic diversity is the interplay of historical and ongoing processes resulting in the species-specific genetic structure of populations, which can, however, be disrupted by interspecific hybridisation and introgression. In this study, we focused on two species of water frogs, Pelophylax epeiroticus and P. kurtmuelleri, which live in sympatry in the southwestern Balkans, to investigate the rate of hybridisation and population genetic structure using cytogenetic, mitochondrial (ND2) and nuclear DNA (microsatellite) markers. The overall hybridisation rate was 2.6%, with rates reaching up to 10% at specific sites. The course of gametogenesis and the occurrence of later generations of hybrids (beyond the F1 generation) indicate a sexual mode of hybrid reproduction. The bimodal structure of hybrid populations and the rarity of hybrids suggest substantial reproductive isolation between the two species; however, this isolation is unlikely attributable to differences in ecological niche occupation. In P. epeiroticus, sequence variation in the ND2 gene revealed two divergent lineages with a clear geographic pattern that corresponds to the genetic structure in microsatellite markers. In contrast, P. kurtmuelleri populations were not as geographically structured and showed only weak genetic differentiation in both types of markers. Pelophylax epeiroticus was significantly less variable at microsatellite loci compared to P. kurtmuelleri, which, together with the high differentiation of its populations, suggests a stronger influence of genetic drift. We can hypothesise that the differential strength of genetic drift in the two species may lead to unequal interspecific gene flow.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10613 - Zoology

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Zoologica Scripta

ISSN

0300-3256

e-ISSN

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Volume of the periodical

54

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

22

Pages from-to

487-508

UT code for WoS article

001425987900001

EID of the result in the Scopus database

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