Capture and return of sexual genomes by hybridogenetic frogs provides clonal genome enrichment in a sexual species

Hybridogenesis is a reproductive tool for sexual parasitism. Hybridogenetic hybrids use gametes from their sexual host for their own reproduction, but sexual species gain no benefit from such matings as their genome is later eliminated. Here, we examine the presence of sexual parasitism in water fro...

Full description

Saved in:
Bibliographic Details
Published in:Scientific reports 2021-01, Vol.11 (1), Article 1633
Main Authors: Doležálková-Kaštánková, Marie, Mazepa, Glib, Jeffries, Daniel L., Perrin, Nicolas, Plötner, Marcela, Plötner, Jörg, Guex, Gaston-Denis, Mikulíček, Peter, Poustka, Albert J., Grau, Jose, Choleva, Lukáš
Format: Article
Language:English
Subjects:
631/208
631/337
631/601
Amphibians
Eggs
Gametes
Genetic crosses
Genomes
Humanities and Social Sciences
Hybrids
multidisciplinary
Parasites
Parasitism
Science
Science (multidisciplinary)
Sperm
Taxa
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Hybridogenesis is a reproductive tool for sexual parasitism. Hybridogenetic hybrids use gametes from their sexual host for their own reproduction, but sexual species gain no benefit from such matings as their genome is later eliminated. Here, we examine the presence of sexual parasitism in water frogs through crossing experiments and genome-wide data. We specifically focus on the famous Central-European populations where Pelophylax esculentus males (hybrids of P. ridibundus and P. lessonae ) live with P. ridibundus. We identified a system where the hybrids commonly produce two types of clonal gametes (hybrid amphispermy). The haploid lessonae genome is clonally inherited from generation to generation and assures the maintenance of hybrids through a process, in which lessonae sperm fertilize P. ridibundus eggs. The haploid ridibundus genome in hybrids received from P. ridibundus a generation ago, is perpetuated as clonal ridibundus sperm and used to fertilize P. ridibundus eggs, yielding female P. ridibundus progeny. These results imply animal reproduction in which hybridogenetic taxa are not only sexual parasites, but also participate in the formation of a sexual taxon in a remarkable way. This occurs through a process by which sexual gametes are being captured, converted to clones, and returned to sexual populations in one generation.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-021-81240-5