An extinct vertebrate preserved by its living hybridogenetic descendant.

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State: Public
Version: Final published version
Serval ID
serval:BIB_84951E522FFF
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
An extinct vertebrate preserved by its living hybridogenetic descendant.
Journal
Scientific reports
Author(s)
Dubey S., Dufresnes C.
ISSN
2045-2322 (Electronic)
ISSN-L
2045-2322
Publication state
Published
Issued date
06/10/2017
Peer-reviewed
Oui
Volume
7
Number
1
Pages
12768
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: epublish
Abstract
Hybridogenesis is a special mode of hybrid reproduction where one parental genome is eliminated and the other is transmitted clonally. We propose that this mechanism can perpetuate the genome of extinct species, based on new genetic data from Pelophylax water frogs. We characterized the genetic makeup of Italian hybridogenetic hybrids (P. kl. hispanicus and esculentus) and identified a new endemic lineage of Eastern-Mediterranean origin as one parental ancestor of P. kl. hispanicus. This taxon is nowadays extinct in the wild but its germline subsists through its hybridogenetic descendant, which can thus be considered as a "semi living fossil". Such rare situation calls for realistic efforts of de-extinction through selective breeding without genetic engineering, and fuels the topical controversy of reviving long extinct species. "Ghost" species hidden by taxa of hybrid origin may be more frequent than suspected in vertebrate groups that experienced a strong history of hybridization and semi-sexual reproduction.
Keywords
Animals, Anura/genetics, Extinction, Biological, Genetic Loci, Hybridization, Genetic, Italy, Phylogeny, Vertebrates/genetics
Pubmed
Web of science
Open Access
Yes
Create date
23/10/2017 10:12
Last modification date
20/08/2019 15:44
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