Comparative analysis of mite genomes reveals positive selection for diet adaptation

Diet is a powerful evolutionary force for species adaptation and diversification. Acari is one of the most abundant clades of Arachnida, exhibiting diverse dietary types, while the underlying genetic adaptive mechanisms are not fully understood. Based on comparative analyses of 15 Acari genomes, we...

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Autores principales: Liu, Qiong, Deng, Yuhua, Song, An, Xiang, Yifan, Chen, De, Wei, Lai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8175442/
https://www.ncbi.nlm.nih.gov/pubmed/34083730
http://dx.doi.org/10.1038/s42003-021-02173-3
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author Liu, Qiong
Deng, Yuhua
Song, An
Xiang, Yifan
Chen, De
Wei, Lai
author_facet Liu, Qiong
Deng, Yuhua
Song, An
Xiang, Yifan
Chen, De
Wei, Lai
author_sort Liu, Qiong
collection PubMed
description Diet is a powerful evolutionary force for species adaptation and diversification. Acari is one of the most abundant clades of Arachnida, exhibiting diverse dietary types, while the underlying genetic adaptive mechanisms are not fully understood. Based on comparative analyses of 15 Acari genomes, we found genetic bases for three specialized diets. Herbivores experienced stronger selection pressure than other groups; the olfactory genes and gene families involving metabolizing toxins showed strong adaptive signals. Genes and gene families related to anticoagulation, detoxification, and haemoglobin digestion were found to be under strong selection pressure or significantly expanded in the blood-feeding species. Lipid metabolism genes have a faster evolutionary rate and been subjected to greater selection pressures in fat-feeding species; one positively selected site in the fatty-acid amide hydrolases 2 gene was identified. Our research provides a new perspective for the evolution of Acari and offers potential target loci for novel pesticide development.
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spelling pubmed-81754422021-06-07 Comparative analysis of mite genomes reveals positive selection for diet adaptation Liu, Qiong Deng, Yuhua Song, An Xiang, Yifan Chen, De Wei, Lai Commun Biol Article Diet is a powerful evolutionary force for species adaptation and diversification. Acari is one of the most abundant clades of Arachnida, exhibiting diverse dietary types, while the underlying genetic adaptive mechanisms are not fully understood. Based on comparative analyses of 15 Acari genomes, we found genetic bases for three specialized diets. Herbivores experienced stronger selection pressure than other groups; the olfactory genes and gene families involving metabolizing toxins showed strong adaptive signals. Genes and gene families related to anticoagulation, detoxification, and haemoglobin digestion were found to be under strong selection pressure or significantly expanded in the blood-feeding species. Lipid metabolism genes have a faster evolutionary rate and been subjected to greater selection pressures in fat-feeding species; one positively selected site in the fatty-acid amide hydrolases 2 gene was identified. Our research provides a new perspective for the evolution of Acari and offers potential target loci for novel pesticide development. Nature Publishing Group UK 2021-06-03 /pmc/articles/PMC8175442/ /pubmed/34083730 http://dx.doi.org/10.1038/s42003-021-02173-3 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
Liu, Qiong
Deng, Yuhua
Song, An
Xiang, Yifan
Chen, De
Wei, Lai
Comparative analysis of mite genomes reveals positive selection for diet adaptation
title Comparative analysis of mite genomes reveals positive selection for diet adaptation
title_full Comparative analysis of mite genomes reveals positive selection for diet adaptation
title_fullStr Comparative analysis of mite genomes reveals positive selection for diet adaptation
title_full_unstemmed Comparative analysis of mite genomes reveals positive selection for diet adaptation
title_short Comparative analysis of mite genomes reveals positive selection for diet adaptation
title_sort comparative analysis of mite genomes reveals positive selection for diet adaptation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8175442/
https://www.ncbi.nlm.nih.gov/pubmed/34083730
http://dx.doi.org/10.1038/s42003-021-02173-3
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