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

Kód výsledku v 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>

Nalezeny alternativní kódy

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

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10613 - Zoology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Zoologica Scripta

ISSN

0300-3256

e-ISSN

—

Svazek periodika

54

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

22

Strana od-do

487-508

Kód UT WoS článku

001425987900001

EID výsledku v databázi Scopus

—