Supplementary material from "The genetic basis and enigmatic origin of melanic polymorphism in pomarine skuas ( Stercorarius pomarinus )"
A key outstanding issue in adaptive evolution is the relationship between the genetics of intraspecific polymorphism and interspecific evolution. Here we show that the pale/dark ventral plumage polymorphism that occurs in both the pomarine skua ( Stercorarius pomarinus ) and Arctic skua ( S. parasit...
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ftdatacite:10.6084/m9.figshare.c.3931876.v1 2023-05-15T15:11:42+02:00 Supplementary material from "The genetic basis and enigmatic origin of melanic polymorphism in pomarine skuas ( Stercorarius pomarinus )" Janssen, Kirstin Mundy, Nicholas I. 2017 https://dx.doi.org/10.6084/m9.figshare.c.3931876.v1 https://figshare.com/collections/Supplementary_material_from_The_genetic_basis_and_enigmatic_origin_of_melanic_polymorphism_in_pomarine_skuas_i_Stercorarius_pomarinus_i_/3931876/1 unknown Figshare https://dx.doi.org/10.1098/rspb.2017.1735 https://dx.doi.org/10.6084/m9.figshare.c.3931876 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Genetics FOS Biological sciences Evolutionary Biology Collection article 2017 ftdatacite https://doi.org/10.6084/m9.figshare.c.3931876.v1 https://doi.org/10.1098/rspb.2017.1735 https://doi.org/10.6084/m9.figshare.c.3931876 2021-11-05T12:55:41Z A key outstanding issue in adaptive evolution is the relationship between the genetics of intraspecific polymorphism and interspecific evolution. Here we show that the pale/dark ventral plumage polymorphism that occurs in both the pomarine skua ( Stercorarius pomarinus ) and Arctic skua ( S. parasiticus ) is the result of convergent evolution at the same locus ( MC1R ), involving some of the same amino acid sites. The dark melanic MC1R allele in the pomarine skua is strongly divergent from the pale MC1R alleles. Whereas the dark allele is closely related to MC1R alleles in three species of great skua ( S. skua , S. maccormicki , S. lonnbergi ), the pale pomarine skua MC1R alleles present a star-like pattern in an intermediate position on the haplotype network, closer to alleles of the long-tailed skua ( S. longicaudus ). Variation at other nuclear loci confirms a close relationship between the pomarine skua and the great skuas. The plumage polymorphism in pomarine skuas might have arisen in the common ancestor of pomarine and great skuas, only being retained in pomarine skuas. Alternatively, the pale and melanic MC1R alleles may have evolved independently in different lineages and been brought together in pomarine skuas by hybridization. In this case introgression of a pale MC1R allele into the pomarine skua from another skua lineage is most likely. Our current data do not permit us to distinguish between these hypotheses, and assaying genome-wide variation holds much promise in this regard. Nevertheless, we have uncovered an intriguing example of a functionally important allele within one species that is shared across species. Article in Journal/Newspaper Arctic Arctic skua Great skua Long-tailed Skua Pomarine Skua Stercorarius pomarinus DataCite Metadata Store (German National Library of Science and Technology) Arctic |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
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topic |
Genetics FOS Biological sciences Evolutionary Biology |
spellingShingle |
Genetics FOS Biological sciences Evolutionary Biology Janssen, Kirstin Mundy, Nicholas I. Supplementary material from "The genetic basis and enigmatic origin of melanic polymorphism in pomarine skuas ( Stercorarius pomarinus )" |
topic_facet |
Genetics FOS Biological sciences Evolutionary Biology |
description |
A key outstanding issue in adaptive evolution is the relationship between the genetics of intraspecific polymorphism and interspecific evolution. Here we show that the pale/dark ventral plumage polymorphism that occurs in both the pomarine skua ( Stercorarius pomarinus ) and Arctic skua ( S. parasiticus ) is the result of convergent evolution at the same locus ( MC1R ), involving some of the same amino acid sites. The dark melanic MC1R allele in the pomarine skua is strongly divergent from the pale MC1R alleles. Whereas the dark allele is closely related to MC1R alleles in three species of great skua ( S. skua , S. maccormicki , S. lonnbergi ), the pale pomarine skua MC1R alleles present a star-like pattern in an intermediate position on the haplotype network, closer to alleles of the long-tailed skua ( S. longicaudus ). Variation at other nuclear loci confirms a close relationship between the pomarine skua and the great skuas. The plumage polymorphism in pomarine skuas might have arisen in the common ancestor of pomarine and great skuas, only being retained in pomarine skuas. Alternatively, the pale and melanic MC1R alleles may have evolved independently in different lineages and been brought together in pomarine skuas by hybridization. In this case introgression of a pale MC1R allele into the pomarine skua from another skua lineage is most likely. Our current data do not permit us to distinguish between these hypotheses, and assaying genome-wide variation holds much promise in this regard. Nevertheless, we have uncovered an intriguing example of a functionally important allele within one species that is shared across species. |
format |
Article in Journal/Newspaper |
author |
Janssen, Kirstin Mundy, Nicholas I. |
author_facet |
Janssen, Kirstin Mundy, Nicholas I. |
author_sort |
Janssen, Kirstin |
title |
Supplementary material from "The genetic basis and enigmatic origin of melanic polymorphism in pomarine skuas ( Stercorarius pomarinus )" |
title_short |
Supplementary material from "The genetic basis and enigmatic origin of melanic polymorphism in pomarine skuas ( Stercorarius pomarinus )" |
title_full |
Supplementary material from "The genetic basis and enigmatic origin of melanic polymorphism in pomarine skuas ( Stercorarius pomarinus )" |
title_fullStr |
Supplementary material from "The genetic basis and enigmatic origin of melanic polymorphism in pomarine skuas ( Stercorarius pomarinus )" |
title_full_unstemmed |
Supplementary material from "The genetic basis and enigmatic origin of melanic polymorphism in pomarine skuas ( Stercorarius pomarinus )" |
title_sort |
supplementary material from "the genetic basis and enigmatic origin of melanic polymorphism in pomarine skuas ( stercorarius pomarinus )" |
publisher |
Figshare |
publishDate |
2017 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.3931876.v1 https://figshare.com/collections/Supplementary_material_from_The_genetic_basis_and_enigmatic_origin_of_melanic_polymorphism_in_pomarine_skuas_i_Stercorarius_pomarinus_i_/3931876/1 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic skua Great skua Long-tailed Skua Pomarine Skua Stercorarius pomarinus |
genre_facet |
Arctic Arctic skua Great skua Long-tailed Skua Pomarine Skua Stercorarius pomarinus |
op_relation |
https://dx.doi.org/10.1098/rspb.2017.1735 https://dx.doi.org/10.6084/m9.figshare.c.3931876 |
op_rights |
CC BY 4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.3931876.v1 https://doi.org/10.1098/rspb.2017.1735 https://doi.org/10.6084/m9.figshare.c.3931876 |
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1766342521440436224 |