Contrasting genetic diversity and the level of clonality of parental genomes in a water frog population system with the prevalence of Pelophylax esculentus hybrids

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985904%3A_____%2F25%3A00637086" target="_blank" >RIV/67985904:_____/25:00637086 - isvavai.cz</a>

Result on the web

<a href="https://brill.com/view/journals/amre/46/2/article-p185_3.xml" target="_blank" >https://brill.com/view/journals/amre/46/2/article-p185_3.xml</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1163/15685381-bja10214" target="_blank" >10.1163/15685381-bja10214</a>

Result language

angličtina

Original language name

Contrasting genetic diversity and the level of clonality of parental genomes in a water frog population system with the prevalence of Pelophylax esculentus hybrids

Original language description

Pelophylax esculentus (genotype LR), an interspecific hybrid of P. ridibundus (genotype RR) and P. lessonae (genotype LL), is one of the most studied examples of hemiclonal hybridogenic vertebrates. In most populations, hybrids produce clonal gametes of one parental species and backcross with the other parental species, forming a new generation of hybrids. In this study, we focused on the population system of water frogs in the Siverskyi Donets river basin (eastern Ukraine) with the aim to determine the genetic diversity of parental genomes and clarify how such a system is maintained in nature. Of the 55 frogs analyzed, only one individual was P. ridibundus, 48 belonged to diploid LR and five to triploid LRR hybrids. Using 16 microsatellite loci, we found significantly lower genetic diversity and significantly higher clonality in the L-genome of hybrids compared to the R-genome. This contrasting diversity might be attributed to the absence of P. lessonae in the studied region and the clonal inheritance of the L-genome. Our population-genetic results are partially inconsistent with previous studies focusing on hybrid gametogenesis in the Siverskyi Donets river basin, according to which hybrids form both clonal R and L gametes. We hypothesize that discrepancies between the type of clonally formed gametes and the genotypic composition of the studied population may be due to the selective mortality of some genotypes during larval development and metamorphosis. Selective mortality thus may play an important role in the dynamics of the hybridogenetic systems in eastern Ukraine.

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

—

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

Amphibia-Reptilia

ISSN

0173-5373

e-ISSN

1568-5381

Volume of the periodical

46

Issue of the periodical within the volume

2

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

12

Pages from-to

185-196

UT code for WoS article

001513946800003

EID of the result in the Scopus database

2-s2.0-105001158707