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Publication details

Document type
Journal articles

Document subtype
Full paper

Title
Short-term evolutionary implications of an introgressed size-determining supergene in a vulnerable population

Participants in the publication
Pierre Lesturgie (Author)
Dep. Biologia Animal
 cE3c
 John S. S. Denton (Author)
Lei Yang (Author)
Shannon Corrigan (Author)
Jeff Kneebone (Author)
Romuald Laso-Jadart (Author)
Arve Lynghammar (Author)
Olivier Fedrigo (Author)
Stefano Mona (Author)
Gavin J. P. Naylor (Author)

Summary
The Thorny Skate (Amblyraja radiata) is a vulnerable species displaying a discrete size-polymorphism in the northwest Atlantic Ocean (NWA). We conducted whole genome sequencing of samples collected across its range. Genetic diversity was similar at all sampled sites, but we discovered a ~ 31 megabase bi-allelic supergene associated with the size polymorphism, with the larger size allele having introgressed in the last ~160,000 years B.P. While both Gulf of Maine (GoM) and Canadian (CAN) populations exhibit the size polymorphism, we detected a significant deficit of heterozygotes at the supergene and longer stretches of homozygosity in GoM population. This suggests inbreeding driven by assortative mating for size in GoM but not in CAN. Coalescent-based demographic modelling reveals strong migration between regions maintaining genetic variability in the recombining genome, preventing speciation between morphs. This study highlights short-term context-dependent evolutionary consequences of a size-determining supergene providing new insights for the management of vulnerable species.

Date of Submisson/Request
2024-03-29
Date of Acceptance
2025-01-02
Date of Publication
2025-01-27

Where published
Nature Communications

Publication Identifiers
ISSN - 2041-1723

Publisher
Springer Science and Business Media LLC

Volume
16
Number
1

Document Identifiers
DOI - https://doi.org/10.1038/s41467-025-56126-z
URL - https://doi.org/10.1038/s41467-025-56126-z

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APA
Pierre Lesturgie, John S. S. Denton, Lei Yang, Shannon Corrigan, Jeff Kneebone, Romuald Laso-Jadart, Arve Lynghammar, Olivier Fedrigo, Stefano Mona, Gavin J. P. Naylor, (2025). Short-term evolutionary implications of an introgressed size-determining supergene in a vulnerable population. Nature Communications, 16, ISSN 2041-1723. eISSN . https://doi.org/10.1038/s41467-025-56126-z

IEEE
Pierre Lesturgie, John S. S. Denton, Lei Yang, Shannon Corrigan, Jeff Kneebone, Romuald Laso-Jadart, Arve Lynghammar, Olivier Fedrigo, Stefano Mona, Gavin J. P. Naylor, "Short-term evolutionary implications of an introgressed size-determining supergene in a vulnerable population" in Nature Communications, vol. 16, 2025. 10.1038/s41467-025-56126-z

BIBTEX
@article{64101, author = {Pierre Lesturgie and John S. S. Denton and Lei Yang and Shannon Corrigan and Jeff Kneebone and Romuald Laso-Jadart and Arve Lynghammar and Olivier Fedrigo and Stefano Mona and Gavin J. P. Naylor}, title = {Short-term evolutionary implications of an introgressed size-determining supergene in a vulnerable population}, journal = {Nature Communications}, year = 2025, volume = 16 }