Genomic Introgressions May Affect Hybridogenetic Reproduction in Water Frog Hybrids
The result's identifiers
Result code in 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>
Alternative codes found
RIV/61988987:17310/25:A2603DOO
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Genomic Introgressions May Affect Hybridogenetic Reproduction in Water Frog Hybrids
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - 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
Result continuities
Project
<a href="/en/project/GF23-07028K" target="_blank" >GF23-07028K: Breaking the rules: modification of sexual reproduction pathways in vertebrates.</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Molecular Ecology
ISSN
0962-1083
e-ISSN
1365-294X
Volume of the periodical
34
Issue of the periodical within the volume
24
Country of publishing house
US - UNITED STATES
Number of pages
16
Pages from-to
e70165
UT code for WoS article
001605948900001
EID of the result in the Scopus database
2-s2.0-105020695653