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Genetic and karyotype divergence between parents affect clonality and sterility in hybrids

Asexual reproduction can be triggered by interspecific hybridization, but its emergence is supposedly rare, relying on exceptional combinations of suitable genomes. To examine how genomic and karyotype divergence between parental lineages affect the incidence of asexual gametogenesis, we experimenta...

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Autores principales: Marta, Anatolie, Tichopád, Tomáš, Bartoš, Oldřich, Klíma, Jiří, Shah, Mujahid Ali, Bohlen, Vendula Šlechtová, Bohlen, Joerg, Halačka, Karel, Choleva, Lukáš, Stöck, Matthias, Dedukh, Dmitrij, Janko, Karel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: eLife Sciences Publications, Ltd 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10627513/
https://www.ncbi.nlm.nih.gov/pubmed/37930936
http://dx.doi.org/10.7554/eLife.88366
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author Marta, Anatolie
Tichopád, Tomáš
Bartoš, Oldřich
Klíma, Jiří
Shah, Mujahid Ali
Bohlen, Vendula Šlechtová
Bohlen, Joerg
Halačka, Karel
Choleva, Lukáš
Stöck, Matthias
Dedukh, Dmitrij
Janko, Karel
author_facet Marta, Anatolie
Tichopád, Tomáš
Bartoš, Oldřich
Klíma, Jiří
Shah, Mujahid Ali
Bohlen, Vendula Šlechtová
Bohlen, Joerg
Halačka, Karel
Choleva, Lukáš
Stöck, Matthias
Dedukh, Dmitrij
Janko, Karel
author_sort Marta, Anatolie
collection PubMed
description Asexual reproduction can be triggered by interspecific hybridization, but its emergence is supposedly rare, relying on exceptional combinations of suitable genomes. To examine how genomic and karyotype divergence between parental lineages affect the incidence of asexual gametogenesis, we experimentally hybridized fishes (Cobitidae) across a broad phylogenetic spectrum, assessed by whole exome data. Gametogenic pathways generally followed a continuum from sexual reproduction in hybrids between closely related evolutionary lineages to sterile or inviable crosses between distant lineages. However, most crosses resulted in a combination of sterile males and asexually reproducing females. Their gametes usually experienced problems in chromosome pairing, but females also produced a certain proportion of oocytes with premeiotically duplicated genomes, enabling their development into clonal eggs. Interspecific hybridization may thus commonly affect cell cycles in a specific way, allowing the formation of unreduced oocytes. The emergence of asexual gametogenesis appears tightly linked to hybrid sterility and constitutes an inherent part of the extended speciation continuum.
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spelling pubmed-106275132023-11-07 Genetic and karyotype divergence between parents affect clonality and sterility in hybrids Marta, Anatolie Tichopád, Tomáš Bartoš, Oldřich Klíma, Jiří Shah, Mujahid Ali Bohlen, Vendula Šlechtová Bohlen, Joerg Halačka, Karel Choleva, Lukáš Stöck, Matthias Dedukh, Dmitrij Janko, Karel eLife Evolutionary Biology Asexual reproduction can be triggered by interspecific hybridization, but its emergence is supposedly rare, relying on exceptional combinations of suitable genomes. To examine how genomic and karyotype divergence between parental lineages affect the incidence of asexual gametogenesis, we experimentally hybridized fishes (Cobitidae) across a broad phylogenetic spectrum, assessed by whole exome data. Gametogenic pathways generally followed a continuum from sexual reproduction in hybrids between closely related evolutionary lineages to sterile or inviable crosses between distant lineages. However, most crosses resulted in a combination of sterile males and asexually reproducing females. Their gametes usually experienced problems in chromosome pairing, but females also produced a certain proportion of oocytes with premeiotically duplicated genomes, enabling their development into clonal eggs. Interspecific hybridization may thus commonly affect cell cycles in a specific way, allowing the formation of unreduced oocytes. The emergence of asexual gametogenesis appears tightly linked to hybrid sterility and constitutes an inherent part of the extended speciation continuum. eLife Sciences Publications, Ltd 2023-11-06 /pmc/articles/PMC10627513/ /pubmed/37930936 http://dx.doi.org/10.7554/eLife.88366 Text en © 2023, Marta et al https://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use and redistribution provided that the original author and source are credited.
spellingShingle Evolutionary Biology
Marta, Anatolie
Tichopád, Tomáš
Bartoš, Oldřich
Klíma, Jiří
Shah, Mujahid Ali
Bohlen, Vendula Šlechtová
Bohlen, Joerg
Halačka, Karel
Choleva, Lukáš
Stöck, Matthias
Dedukh, Dmitrij
Janko, Karel
Genetic and karyotype divergence between parents affect clonality and sterility in hybrids
title Genetic and karyotype divergence between parents affect clonality and sterility in hybrids
title_full Genetic and karyotype divergence between parents affect clonality and sterility in hybrids
title_fullStr Genetic and karyotype divergence between parents affect clonality and sterility in hybrids
title_full_unstemmed Genetic and karyotype divergence between parents affect clonality and sterility in hybrids
title_short Genetic and karyotype divergence between parents affect clonality and sterility in hybrids
title_sort genetic and karyotype divergence between parents affect clonality and sterility in hybrids
topic Evolutionary Biology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10627513/
https://www.ncbi.nlm.nih.gov/pubmed/37930936
http://dx.doi.org/10.7554/eLife.88366
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