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A novel neo‐sex chromosome in Sylvietta brachyura (Macrosphenidae) adds to the extraordinary avian sex chromosome diversity among Sylvioidea songbirds

We report the discovery of a novel neo‐sex chromosome in an African warbler, Sylvietta brachyura (northern crombec; Macrosphenidae). This species is part of the Sylvioidea superfamily, where four separate autosome–sex chromosome translocation events have previously been discovered via comparative ge...

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Autores principales: Sigeman, Hanna, Zhang, Hongkai, Ali Abed, Salwan, Hansson, Bengt
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10087220/
https://www.ncbi.nlm.nih.gov/pubmed/36156325
http://dx.doi.org/10.1111/jeb.14096
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author Sigeman, Hanna
Zhang, Hongkai
Ali Abed, Salwan
Hansson, Bengt
author_facet Sigeman, Hanna
Zhang, Hongkai
Ali Abed, Salwan
Hansson, Bengt
author_sort Sigeman, Hanna
collection PubMed
description We report the discovery of a novel neo‐sex chromosome in an African warbler, Sylvietta brachyura (northern crombec; Macrosphenidae). This species is part of the Sylvioidea superfamily, where four separate autosome–sex chromosome translocation events have previously been discovered via comparative genomics of 11 of the 22 families in this clade. Our discovery here resulted from analyses of genomic data of single species‐representatives from three additional Sylvioidea families (Macrosphenidae, Pycnonotidae and Leiothrichidae). In all three species, we confirmed the translocation of a part of chromosome 4A to the sex chromosomes, which originated basally in Sylvioidea. In S. brachyura, we found that a part of chromosome 8 has been translocated to the sex chromosomes, forming a unique neo‐sex chromosome in this lineage. Furthermore, the non‐recombining part of 4A in S. brachyura is smaller than in other Sylvioidea species, which suggests that recombination continued along this region after the fusion event in the Sylvioidea ancestor. These findings reveal additional sex chromosome diversity among the Sylvioidea, where five separate translocation events are now confirmed.
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spelling pubmed-100872202023-04-12 A novel neo‐sex chromosome in Sylvietta brachyura (Macrosphenidae) adds to the extraordinary avian sex chromosome diversity among Sylvioidea songbirds Sigeman, Hanna Zhang, Hongkai Ali Abed, Salwan Hansson, Bengt J Evol Biol Short Communication We report the discovery of a novel neo‐sex chromosome in an African warbler, Sylvietta brachyura (northern crombec; Macrosphenidae). This species is part of the Sylvioidea superfamily, where four separate autosome–sex chromosome translocation events have previously been discovered via comparative genomics of 11 of the 22 families in this clade. Our discovery here resulted from analyses of genomic data of single species‐representatives from three additional Sylvioidea families (Macrosphenidae, Pycnonotidae and Leiothrichidae). In all three species, we confirmed the translocation of a part of chromosome 4A to the sex chromosomes, which originated basally in Sylvioidea. In S. brachyura, we found that a part of chromosome 8 has been translocated to the sex chromosomes, forming a unique neo‐sex chromosome in this lineage. Furthermore, the non‐recombining part of 4A in S. brachyura is smaller than in other Sylvioidea species, which suggests that recombination continued along this region after the fusion event in the Sylvioidea ancestor. These findings reveal additional sex chromosome diversity among the Sylvioidea, where five separate translocation events are now confirmed. John Wiley and Sons Inc. 2022-09-26 2022-12 /pmc/articles/PMC10087220/ /pubmed/36156325 http://dx.doi.org/10.1111/jeb.14096 Text en © 2022 The Authors. Journal of Evolutionary Biology published by John Wiley & Sons Ltd on behalf of European Society for Evolutionary Biology. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Short Communication
Sigeman, Hanna
Zhang, Hongkai
Ali Abed, Salwan
Hansson, Bengt
A novel neo‐sex chromosome in Sylvietta brachyura (Macrosphenidae) adds to the extraordinary avian sex chromosome diversity among Sylvioidea songbirds
title A novel neo‐sex chromosome in Sylvietta brachyura (Macrosphenidae) adds to the extraordinary avian sex chromosome diversity among Sylvioidea songbirds
title_full A novel neo‐sex chromosome in Sylvietta brachyura (Macrosphenidae) adds to the extraordinary avian sex chromosome diversity among Sylvioidea songbirds
title_fullStr A novel neo‐sex chromosome in Sylvietta brachyura (Macrosphenidae) adds to the extraordinary avian sex chromosome diversity among Sylvioidea songbirds
title_full_unstemmed A novel neo‐sex chromosome in Sylvietta brachyura (Macrosphenidae) adds to the extraordinary avian sex chromosome diversity among Sylvioidea songbirds
title_short A novel neo‐sex chromosome in Sylvietta brachyura (Macrosphenidae) adds to the extraordinary avian sex chromosome diversity among Sylvioidea songbirds
title_sort novel neo‐sex chromosome in sylvietta brachyura (macrosphenidae) adds to the extraordinary avian sex chromosome diversity among sylvioidea songbirds
topic Short Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10087220/
https://www.ncbi.nlm.nih.gov/pubmed/36156325
http://dx.doi.org/10.1111/jeb.14096
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