Genomic Introgressions May Affect Hybridogenetic Reproduction in Water Frog Hybrids

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985904%3A_____%2F25%3A00644600" target="_blank" >RIV/67985904:_____/25:00644600 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61988987:17310/25:A2603DOO

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.70165?getft_integrator=clarivate&utm_source=clarivate" target="_blank" >https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.70165?getft_integrator=clarivate&utm_source=clarivate</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/mec.70165" target="_blank" >10.1111/mec.70165</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Genomic Introgressions May Affect Hybridogenetic Reproduction in Water Frog Hybrids

Popis výsledku v původním jazyce

Hybridisation is a powerful evolutionary force that can lead to diverse reproductive outcomes, including the emergence of asexual lineages such as hybridogenesis. During hybridogenesis, found in water frog hybrids Pelophylax esculentus, one parental genome is eliminated during gametogenesis while the other is clonally propagated to the gametes. Although this reproductive mode allowed hybrids to spread across Europe, the ability to undergo hybridogenesis varies in hybrids throughout their range. To explain this gametogenic variability, we investigated the role of genomic introgression. Using cytogenetic analysis, we examined gametogenesis in diploid and triploid hybrid males from four eastern Ukrainian population systems, known for high hybrid abundance and diverse gametogenic pathways. Most hybrids from the studied localities showed canonical hybridogenetic reproduction, characterised by the expected hybrid genome composition and no detectable intergenomic rearrangements or introgressions. We also identified hybrids with disrupted or absent genome elimination, which were incapable of hybridogenetic reproduction and exhibited reduced fertility and aneuploid gamete formation. These individuals exhibited intergenomic rearrangements, with chromosomal regions showing interchanges of parental chromosomes. Additionally, some chromosomal fragments did not match either parental genome, suggesting introgression from an unidentified lineage. Notably, half of the triploid hybrids had rearranged chromosomes, likely originating from diploid hybrids that failed parental genome elimination and transmitted diploid gametes. Our study reveals that hybridogenesis in P. esculentus is not a conserved mechanism but rather significantly relies on the genomic background. These findings highlight the role of genomic introgression in shaping reproductive diversity and influencing the evolution and persistence of asexual vertebrates.

Název v anglickém jazyce

Genomic Introgressions May Affect Hybridogenetic Reproduction in Water Frog Hybrids

Popis výsledku anglicky

Hybridisation is a powerful evolutionary force that can lead to diverse reproductive outcomes, including the emergence of asexual lineages such as hybridogenesis. During hybridogenesis, found in water frog hybrids Pelophylax esculentus, one parental genome is eliminated during gametogenesis while the other is clonally propagated to the gametes. Although this reproductive mode allowed hybrids to spread across Europe, the ability to undergo hybridogenesis varies in hybrids throughout their range. To explain this gametogenic variability, we investigated the role of genomic introgression. Using cytogenetic analysis, we examined gametogenesis in diploid and triploid hybrid males from four eastern Ukrainian population systems, known for high hybrid abundance and diverse gametogenic pathways. Most hybrids from the studied localities showed canonical hybridogenetic reproduction, characterised by the expected hybrid genome composition and no detectable intergenomic rearrangements or introgressions. We also identified hybrids with disrupted or absent genome elimination, which were incapable of hybridogenetic reproduction and exhibited reduced fertility and aneuploid gamete formation. These individuals exhibited intergenomic rearrangements, with chromosomal regions showing interchanges of parental chromosomes. Additionally, some chromosomal fragments did not match either parental genome, suggesting introgression from an unidentified lineage. Notably, half of the triploid hybrids had rearranged chromosomes, likely originating from diploid hybrids that failed parental genome elimination and transmitted diploid gametes. Our study reveals that hybridogenesis in P. esculentus is not a conserved mechanism but rather significantly relies on the genomic background. These findings highlight the role of genomic introgression in shaping reproductive diversity and influencing the evolution and persistence of asexual vertebrates.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10613 - Zoology

Projekt

<a href="/cs/project/GF23-07028K" target="_blank" >GF23-07028K: Porušení pravidel: modifikované způsoby sexuální reprodukce u obratlovců</a><br>

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

Molecular Ecology

ISSN

0962-1083

e-ISSN

1365-294X

Svazek periodika

34

Číslo periodika v rámci svazku

24

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

16

Strana od-do

e70165

Kód UT WoS článku

001605948900001

EID výsledku v databázi Scopus

2-s2.0-105020695653