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Diversification, selective sweep, and body size in the invasive Palearctic alfalfa weevil infected with Wolbachia

The alfalfa weevil Hypera postica, native to the Western Palearctic, is an invasive legume pest with two divergent mitochondrial clades in its invading regions, the Western clade and the Eastern/Egyptian clade. However, knowledge regarding the native populations is limited. The Western clade is infe...

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Autores principales: Tuda, Midori, Iwase, Shun-ichiro, Kébé, Khadim, Haran, Julien, Skuhrovec, Jiri, Sanaei, Ehsan, Tsuji, Naomichi, Podlussány, Attila, Merkl, Ottó, El-Heneidy, Ahmed H., Morimoto, Katsura
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8102540/
https://www.ncbi.nlm.nih.gov/pubmed/33958611
http://dx.doi.org/10.1038/s41598-021-88770-y
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author Tuda, Midori
Iwase, Shun-ichiro
Kébé, Khadim
Haran, Julien
Skuhrovec, Jiri
Sanaei, Ehsan
Tsuji, Naomichi
Podlussány, Attila
Merkl, Ottó
El-Heneidy, Ahmed H.
Morimoto, Katsura
author_facet Tuda, Midori
Iwase, Shun-ichiro
Kébé, Khadim
Haran, Julien
Skuhrovec, Jiri
Sanaei, Ehsan
Tsuji, Naomichi
Podlussány, Attila
Merkl, Ottó
El-Heneidy, Ahmed H.
Morimoto, Katsura
author_sort Tuda, Midori
collection PubMed
description The alfalfa weevil Hypera postica, native to the Western Palearctic, is an invasive legume pest with two divergent mitochondrial clades in its invading regions, the Western clade and the Eastern/Egyptian clade. However, knowledge regarding the native populations is limited. The Western clade is infected with the endosymbiotic bacteria Wolbachia that cause cytoplasmic incompatibility in host weevils. Our aim was to elucidate the spatial genetic structure of this insect and the effect of Wolbachia on its population diversity. We analyzed two mitochondrial and two nuclear genes of the weevil from its native ranges. The Western clade was distributed in western/central Europe, whereas the Eastern/Egyptian clade was distributed from the Mediterranean basin to central Asia. Intermediate mitotypes were found from the Balkans to central Asia. Most Western clade individuals in western Europe were infected with an identical Wolbachia strain. Mitochondrial genetic diversity of the infected individuals was minimal. The infected clades demonstrated a higher nonsynonymous/synonymous substitution rate ratio than the uninfected clades, suggesting a higher fixation of nonsynonymous mutations due to a selective sweep by Wolbachia. Trans-Mediterranean and within-European dispersal routes were supported. We suggest that the ancestral populations diversified by geographic isolation due to glaciations and that the diversity was reduced in the west by a recent Wolbachia-driven sweep(s). The intermediate clade exhibited a body size and host plant that differed from the other clades. Pros and cons of the possible use of infected-clade males to control uninfected populations are discussed.
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spelling pubmed-81025402021-05-10 Diversification, selective sweep, and body size in the invasive Palearctic alfalfa weevil infected with Wolbachia Tuda, Midori Iwase, Shun-ichiro Kébé, Khadim Haran, Julien Skuhrovec, Jiri Sanaei, Ehsan Tsuji, Naomichi Podlussány, Attila Merkl, Ottó El-Heneidy, Ahmed H. Morimoto, Katsura Sci Rep Article The alfalfa weevil Hypera postica, native to the Western Palearctic, is an invasive legume pest with two divergent mitochondrial clades in its invading regions, the Western clade and the Eastern/Egyptian clade. However, knowledge regarding the native populations is limited. The Western clade is infected with the endosymbiotic bacteria Wolbachia that cause cytoplasmic incompatibility in host weevils. Our aim was to elucidate the spatial genetic structure of this insect and the effect of Wolbachia on its population diversity. We analyzed two mitochondrial and two nuclear genes of the weevil from its native ranges. The Western clade was distributed in western/central Europe, whereas the Eastern/Egyptian clade was distributed from the Mediterranean basin to central Asia. Intermediate mitotypes were found from the Balkans to central Asia. Most Western clade individuals in western Europe were infected with an identical Wolbachia strain. Mitochondrial genetic diversity of the infected individuals was minimal. The infected clades demonstrated a higher nonsynonymous/synonymous substitution rate ratio than the uninfected clades, suggesting a higher fixation of nonsynonymous mutations due to a selective sweep by Wolbachia. Trans-Mediterranean and within-European dispersal routes were supported. We suggest that the ancestral populations diversified by geographic isolation due to glaciations and that the diversity was reduced in the west by a recent Wolbachia-driven sweep(s). The intermediate clade exhibited a body size and host plant that differed from the other clades. Pros and cons of the possible use of infected-clade males to control uninfected populations are discussed. Nature Publishing Group UK 2021-05-06 /pmc/articles/PMC8102540/ /pubmed/33958611 http://dx.doi.org/10.1038/s41598-021-88770-y 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Tuda, Midori
Iwase, Shun-ichiro
Kébé, Khadim
Haran, Julien
Skuhrovec, Jiri
Sanaei, Ehsan
Tsuji, Naomichi
Podlussány, Attila
Merkl, Ottó
El-Heneidy, Ahmed H.
Morimoto, Katsura
Diversification, selective sweep, and body size in the invasive Palearctic alfalfa weevil infected with Wolbachia
title Diversification, selective sweep, and body size in the invasive Palearctic alfalfa weevil infected with Wolbachia
title_full Diversification, selective sweep, and body size in the invasive Palearctic alfalfa weevil infected with Wolbachia
title_fullStr Diversification, selective sweep, and body size in the invasive Palearctic alfalfa weevil infected with Wolbachia
title_full_unstemmed Diversification, selective sweep, and body size in the invasive Palearctic alfalfa weevil infected with Wolbachia
title_short Diversification, selective sweep, and body size in the invasive Palearctic alfalfa weevil infected with Wolbachia
title_sort diversification, selective sweep, and body size in the invasive palearctic alfalfa weevil infected with wolbachia
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8102540/
https://www.ncbi.nlm.nih.gov/pubmed/33958611
http://dx.doi.org/10.1038/s41598-021-88770-y
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