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Signatures of mitonuclear coevolution in a warbler species complex

Divergent mitonuclear coadaptation could facilitate speciation. We investigate this possibility in two hybridizing species of warblers, Setophaga occidentalis and S. townsendi, in western North America. Inland S. townsendi harbor distinct mitochondrial DNA haplotypes from those of S. occidentalis. T...

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Autores principales: Wang, Silu, Ore, Madelyn J., Mikkelsen, Else K., Lee-Yaw, Julie, Toews, David P. L., Rohwer, Sievert, Irwin, Darren
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8277850/
https://www.ncbi.nlm.nih.gov/pubmed/34257313
http://dx.doi.org/10.1038/s41467-021-24586-8
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author Wang, Silu
Ore, Madelyn J.
Mikkelsen, Else K.
Lee-Yaw, Julie
Toews, David P. L.
Rohwer, Sievert
Irwin, Darren
author_facet Wang, Silu
Ore, Madelyn J.
Mikkelsen, Else K.
Lee-Yaw, Julie
Toews, David P. L.
Rohwer, Sievert
Irwin, Darren
author_sort Wang, Silu
collection PubMed
description Divergent mitonuclear coadaptation could facilitate speciation. We investigate this possibility in two hybridizing species of warblers, Setophaga occidentalis and S. townsendi, in western North America. Inland S. townsendi harbor distinct mitochondrial DNA haplotypes from those of S. occidentalis. These populations also differ in several nuclear DNA regions. Coastal S. townsendi demonstrate mixed mitonuclear ancestry from S. occidentalis and inland S. townsendi. Of the few highly-differentiated chromosomal regions between inland S. townsendi and S. occidentalis, a 1.2 Mb gene block on chromosome 5 is also differentiated between coastal and inland S. townsendi. Genes in this block are associated with fatty acid oxidation and energy-related signaling transduction, thus linked to mitochondrial functions. Genetic variation within this candidate gene block covaries with mitochondrial DNA and shows signatures of divergent selection. Spatial variation in mitonuclear ancestries is correlated with climatic conditions. Together, these observations suggest divergent mitonuclear coadaptation underpins cryptic differentiation in this species complex.
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spelling pubmed-82778502021-07-20 Signatures of mitonuclear coevolution in a warbler species complex Wang, Silu Ore, Madelyn J. Mikkelsen, Else K. Lee-Yaw, Julie Toews, David P. L. Rohwer, Sievert Irwin, Darren Nat Commun Article Divergent mitonuclear coadaptation could facilitate speciation. We investigate this possibility in two hybridizing species of warblers, Setophaga occidentalis and S. townsendi, in western North America. Inland S. townsendi harbor distinct mitochondrial DNA haplotypes from those of S. occidentalis. These populations also differ in several nuclear DNA regions. Coastal S. townsendi demonstrate mixed mitonuclear ancestry from S. occidentalis and inland S. townsendi. Of the few highly-differentiated chromosomal regions between inland S. townsendi and S. occidentalis, a 1.2 Mb gene block on chromosome 5 is also differentiated between coastal and inland S. townsendi. Genes in this block are associated with fatty acid oxidation and energy-related signaling transduction, thus linked to mitochondrial functions. Genetic variation within this candidate gene block covaries with mitochondrial DNA and shows signatures of divergent selection. Spatial variation in mitonuclear ancestries is correlated with climatic conditions. Together, these observations suggest divergent mitonuclear coadaptation underpins cryptic differentiation in this species complex. Nature Publishing Group UK 2021-07-13 /pmc/articles/PMC8277850/ /pubmed/34257313 http://dx.doi.org/10.1038/s41467-021-24586-8 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Wang, Silu
Ore, Madelyn J.
Mikkelsen, Else K.
Lee-Yaw, Julie
Toews, David P. L.
Rohwer, Sievert
Irwin, Darren
Signatures of mitonuclear coevolution in a warbler species complex
title Signatures of mitonuclear coevolution in a warbler species complex
title_full Signatures of mitonuclear coevolution in a warbler species complex
title_fullStr Signatures of mitonuclear coevolution in a warbler species complex
title_full_unstemmed Signatures of mitonuclear coevolution in a warbler species complex
title_short Signatures of mitonuclear coevolution in a warbler species complex
title_sort signatures of mitonuclear coevolution in a warbler species complex
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8277850/
https://www.ncbi.nlm.nih.gov/pubmed/34257313
http://dx.doi.org/10.1038/s41467-021-24586-8
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