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Evolutionary analysis of the female-specific avian W chromosome

Author

Listed:
  • Linnéa Smeds

    (Evolutionary Biology Centre, Uppsala University)

  • Vera Warmuth

    (Evolutionary Biology Centre, Uppsala University)

  • Paulina Bolivar

    (Evolutionary Biology Centre, Uppsala University)

  • Severin Uebbing

    (Evolutionary Biology Centre, Uppsala University)

  • Reto Burri

    (Evolutionary Biology Centre, Uppsala University)

  • Alexander Suh

    (Evolutionary Biology Centre, Uppsala University)

  • Alexander Nater

    (Evolutionary Biology Centre, Uppsala University)

  • Stanislav Bureš

    (Laboratory of Ornithology, Palacky University)

  • Laszlo Z. Garamszegi

    (Estación Biológica de Doñana-CSIC)

  • Silje Hogner

    (Centre for Ecological and Evolutionary Synthesis, University of Oslo
    Natural History Museum, University of Oslo)

  • Juan Moreno

    (Museo Nacional de Ciencias Naturales-CSIC)

  • Anna Qvarnström

    (Evolutionary Biology Centre, Uppsala University)

  • Milan Ružić

    (Bird Protection and Study Society of Serbia)

  • Stein-Are Sæther

    (Centre for Ecological and Evolutionary Synthesis, University of Oslo
    Norwegian Institute for Nature Research (NINA))

  • Glenn-Peter Sætre

    (Centre for Ecological and Evolutionary Synthesis, University of Oslo)

  • Janos Török

    (Behavioural Ecology Group, Eötvös Loránd University)

  • Hans Ellegren

    (Evolutionary Biology Centre, Uppsala University)

Abstract

The typically repetitive nature of the sex-limited chromosome means that it is often excluded from or poorly covered in genome assemblies, hindering studies of evolutionary and population genomic processes in non-recombining chromosomes. Here, we present a draft assembly of the non-recombining region of the collared flycatcher W chromosome, containing 46 genes without evidence of female-specific functional differentiation. Survival of genes during W chromosome degeneration has been highly non-random and expression data suggest that this can be attributed to selection for maintaining gene dose and ancestral expression levels of essential genes. Re-sequencing of large population samples revealed dramatically reduced levels of within-species diversity and elevated rates of between-species differentiation (lineage sorting), consistent with low effective population size. Concordance between W chromosome and mitochondrial DNA phylogenetic trees demonstrates evolutionary stable matrilineal inheritance of this nuclear–cytonuclear pair of chromosomes. Our results show both commonalities and differences between W chromosome and Y chromosome evolution.

Suggested Citation

  • Linnéa Smeds & Vera Warmuth & Paulina Bolivar & Severin Uebbing & Reto Burri & Alexander Suh & Alexander Nater & Stanislav Bureš & Laszlo Z. Garamszegi & Silje Hogner & Juan Moreno & Anna Qvarnström &, 2015. "Evolutionary analysis of the female-specific avian W chromosome," Nature Communications, Nature, vol. 6(1), pages 1-10, November.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms8330
    DOI: 10.1038/ncomms8330
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    Cited by:

    1. Lulu Xu & Yandong Ren & Jiahong Wu & Tingting Cui & Rong Dong & Chen Huang & Zhe Feng & Tianmin Zhang & Peng Yang & Jiaqing Yuan & Xiao Xu & Jiao Liu & Jinhong Wang & Wu Chen & Da Mi & David M. Irwin , 2024. "Evolution and expression patterns of the neo-sex chromosomes of the crested ibis," Nature Communications, Nature, vol. 15(1), pages 1-14, December.

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