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Intralocus conflicts associated with a supergene

Author

Listed:
  • Lina M. Giraldo-Deck

    (Max Planck Institute for Ornithology)

  • Jasmine L. Loveland

    (Max Planck Institute for Ornithology)

  • Wolfgang Goymann

    (Max Planck Institute for Ornithology)

  • Barbara Tschirren

    (University of Exeter)

  • Terry Burke

    (University of Sheffield)

  • Bart Kempenaers

    (Max Planck Institute for Ornithology)

  • David B. Lank

    (Simon Fraser University)

  • Clemens Küpper

    (Max Planck Institute for Ornithology)

Abstract

Chromosomal inversions frequently underlie major phenotypic variation maintained by divergent selection within and between sexes. Here we examine whether and how intralocus conflicts contribute to balancing selection stabilizing an autosomal inversion polymorphism in the ruff Calidris pugnax. In this lekking shorebird, three male mating morphs (Independents, Satellites and Faeders) are controlled by an inversion-based supergene. We show that in a captive population, Faeder females, who are smaller and whose inversion haplotype has not undergone recombination, have lower average reproductive success in terms of laying rate, egg size, and offspring survival than Independent females, who lack the inversion. Satellite females, who carry a recombined inversion haplotype and have intermediate body size, more closely resemble Independent than Faeder females in reproductive performance. We inferred that the lower reproductive output of Faeder females is most likely balanced by higher than average reproductive success of individual Faeder males. These findings suggest that intralocus conflicts may play a major role in the evolution and maintenance of supergene variants.

Suggested Citation

  • Lina M. Giraldo-Deck & Jasmine L. Loveland & Wolfgang Goymann & Barbara Tschirren & Terry Burke & Bart Kempenaers & David B. Lank & Clemens Küpper, 2022. "Intralocus conflicts associated with a supergene," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
  • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-29033-w
    DOI: 10.1038/s41467-022-29033-w
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    References listed on IDEAS

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    1. Susan E. Johnston & Jacob Gratten & Camillo Berenos & Jill G. Pilkington & Tim H. Clutton-Brock & Josephine M. Pemberton & Jon Slate, 2013. "Life history trade-offs at a single locus maintain sexually selected genetic variation," Nature, Nature, vol. 502(7469), pages 93-95, October.
    2. Claire Mérot & Violaine Llaurens & Eric Normandeau & Louis Bernatchez & Maren Wellenreuther, 2020. "Balancing selection via life-history trade-offs maintains an inversion polymorphism in a seaweed fly," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
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