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Host plants and insecticides shape the evolution of genetic and clonal diversity in a major aphid crop pest
Understanding the spatiotemporal dynamics of pesticide resistance at the landscape scale is essential to anticipate the evolution and spread of new resistance phenotypes. In crop mosaics, host plant specialization in pest populations is likely to dampen the spread of pesticide resistance between dif...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9624068/ https://www.ncbi.nlm.nih.gov/pubmed/36330297 http://dx.doi.org/10.1111/eva.13417 |
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author | Roy, Lise Barrès, Benoit Capderrey, Cécile Mahéo, Frédérique Micoud, Annie Hullé, Maurice Simon, Jean‐Christophe |
author_facet | Roy, Lise Barrès, Benoit Capderrey, Cécile Mahéo, Frédérique Micoud, Annie Hullé, Maurice Simon, Jean‐Christophe |
author_sort | Roy, Lise |
collection | PubMed |
description | Understanding the spatiotemporal dynamics of pesticide resistance at the landscape scale is essential to anticipate the evolution and spread of new resistance phenotypes. In crop mosaics, host plant specialization in pest populations is likely to dampen the spread of pesticide resistance between different crops even in mobile pests such as aphids. Here, we assessed the contribution of host‐based genetic differentiation to the dynamics of resistance alleles in Myzus persicae, a major aphid pest which displays several insecticide resistance mechanisms. We obtained a representative sample of aphids from a crop mosaic through a suction trap for 7 years and from various crops as a reference collection. We genotyped these aphids at 14 microsatellite markers and four insecticide‐resistant loci, analyzed the genetic structure, and assigned host‐based genetic groups from field‐collected aphids. Four well‐defined genetic clusters were found in aerial samples, three of which with strong association with host‐plants. The fourth group was exclusive to aerial samples and highly divergent from the others, suggesting mixture with a closely related taxon of M. persicae associated with unsampled plants. We found a sharp differentiation between individuals from peach and herbaceous plants. Individuals from herbaceous hosts were separated into two genetic clusters, one more strongly associated with tobacco. The 4‐loci resistance genotypes showed a strong association with the four genetic clusters, indicative of barriers to the spread of resistance. However, we found a small number of clones with resistant alleles on multiple host‐plant species, which may spread insecticide resistance between crops. The 7‐year survey revealed a rapid turn‐over of aphid genotypes as well as the emergence, frequency increase and persistence of clones with resistance to several families of insecticides. This study highlights the importance of considering landscape‐scale population structure to identify the risk of emergence and spread of insecticide resistance for a particular crop. |
format | Online Article Text |
id | pubmed-9624068 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-96240682022-11-02 Host plants and insecticides shape the evolution of genetic and clonal diversity in a major aphid crop pest Roy, Lise Barrès, Benoit Capderrey, Cécile Mahéo, Frédérique Micoud, Annie Hullé, Maurice Simon, Jean‐Christophe Evol Appl Special Issue Original Articles Understanding the spatiotemporal dynamics of pesticide resistance at the landscape scale is essential to anticipate the evolution and spread of new resistance phenotypes. In crop mosaics, host plant specialization in pest populations is likely to dampen the spread of pesticide resistance between different crops even in mobile pests such as aphids. Here, we assessed the contribution of host‐based genetic differentiation to the dynamics of resistance alleles in Myzus persicae, a major aphid pest which displays several insecticide resistance mechanisms. We obtained a representative sample of aphids from a crop mosaic through a suction trap for 7 years and from various crops as a reference collection. We genotyped these aphids at 14 microsatellite markers and four insecticide‐resistant loci, analyzed the genetic structure, and assigned host‐based genetic groups from field‐collected aphids. Four well‐defined genetic clusters were found in aerial samples, three of which with strong association with host‐plants. The fourth group was exclusive to aerial samples and highly divergent from the others, suggesting mixture with a closely related taxon of M. persicae associated with unsampled plants. We found a sharp differentiation between individuals from peach and herbaceous plants. Individuals from herbaceous hosts were separated into two genetic clusters, one more strongly associated with tobacco. The 4‐loci resistance genotypes showed a strong association with the four genetic clusters, indicative of barriers to the spread of resistance. However, we found a small number of clones with resistant alleles on multiple host‐plant species, which may spread insecticide resistance between crops. The 7‐year survey revealed a rapid turn‐over of aphid genotypes as well as the emergence, frequency increase and persistence of clones with resistance to several families of insecticides. This study highlights the importance of considering landscape‐scale population structure to identify the risk of emergence and spread of insecticide resistance for a particular crop. John Wiley and Sons Inc. 2022-07-08 /pmc/articles/PMC9624068/ /pubmed/36330297 http://dx.doi.org/10.1111/eva.13417 Text en © 2022 The Authors. Evolutionary Applications published by John Wiley & Sons Ltd. 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 | Special Issue Original Articles Roy, Lise Barrès, Benoit Capderrey, Cécile Mahéo, Frédérique Micoud, Annie Hullé, Maurice Simon, Jean‐Christophe Host plants and insecticides shape the evolution of genetic and clonal diversity in a major aphid crop pest |
title | Host plants and insecticides shape the evolution of genetic and clonal diversity in a major aphid crop pest |
title_full | Host plants and insecticides shape the evolution of genetic and clonal diversity in a major aphid crop pest |
title_fullStr | Host plants and insecticides shape the evolution of genetic and clonal diversity in a major aphid crop pest |
title_full_unstemmed | Host plants and insecticides shape the evolution of genetic and clonal diversity in a major aphid crop pest |
title_short | Host plants and insecticides shape the evolution of genetic and clonal diversity in a major aphid crop pest |
title_sort | host plants and insecticides shape the evolution of genetic and clonal diversity in a major aphid crop pest |
topic | Special Issue Original Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9624068/ https://www.ncbi.nlm.nih.gov/pubmed/36330297 http://dx.doi.org/10.1111/eva.13417 |
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