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A supergene determines highly divergent male reproductive morphs in the ruff
Küpper, C.; Stocks, M.; Risse, J.E.; dos Remedios, N.; Farrell, L.; McRae, S.B.; Morgan, T.C.; Karlionova, N.; Pinchuk, P.; Verkuil, Y.I.; Kitaysky, A.S.; Wingfield, J.C.; Piersma, T.; Zeng, K.; Slate, J.; Blaxter, M.; Lank, D.B.; Burke, T. (2016). A supergene determines highly divergent male reproductive morphs in the ruff. Nature Gen. 48(1): 79–83. dx.doi.org/10.1038/ng.3443
In: Nature Genetics. Nature Publishing Group: New York, NY. ISSN 1061-4036, more
Peer reviewed article  

Available in Authors 

Author keywords
    Behavioural genetics; DNA sequencing; Genetic linkage study; Genome-wide association studies; Population genetics

Authors  Top 
  • Küpper, C.
  • Stocks, M.
  • Risse, J.E.
  • dos Remedios, N.
  • Farrell, L.
  • McRae, S.B.
  • Morgan, T.C.
  • Karlionova, N.
  • Pinchuk, P.
  • Verkuil, Y.I.
  • Kitaysky, A.S.
  • Wingfield, J.C.
  • Piersma, T., more
  • Zeng, K.
  • Slate, J.
  • Blaxter, M.
  • Lank, D.B.
  • Burke, T.

Abstract
    Three strikingly different alternative male mating morphs (aggressive 'independents', semicooperative 'satellites' and female-mimic 'faeders') coexist as a balanced polymorphism in the ruff, Philomachus pugnax, a lek-breeding wading bird1, 2, 3. Major differences in body size, ornamentation, and aggressive and mating behaviors are inherited as an autosomal polymorphism4, 5. We show that development into satellites and faeders is determined by a supergene6, 7, 8 consisting of divergent alternative, dominant and non-recombining haplotypes of an inversion on chromosome 11, which contains 125 predicted genes. Independents are homozygous for the ancestral sequence. One breakpoint of the inversion disrupts the essential CENP-N gene (encoding centromere protein N), and pedigree analysis confirms the lethality of homozygosity for the inversion. We describe new differences in behavior, testis size and steroid metabolism among morphs and identify polymorphic genes within the inversion that are likely to contribute to the differences among morphs in reproductive traits.

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