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Evolved Transcriptional Responses and Their Trade-Offs after Long-Term Adaptation of Bemisia tabaci to a Marginally Suitable Host
Although generalist insect herbivores can migrate and rapidly adapt to a broad range of host plants, they can face significant difficulties when accidentally migrating to novel and marginally suitable hosts. What happens, both in performance and gene expression regulation, if these marginally suitab...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9372648/ https://www.ncbi.nlm.nih.gov/pubmed/35880721 http://dx.doi.org/10.1093/gbe/evac118 |
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author | Tadmor, Ella Juravel, Ksenia Morin, Shai Santos-Garcia, Diego |
author_facet | Tadmor, Ella Juravel, Ksenia Morin, Shai Santos-Garcia, Diego |
author_sort | Tadmor, Ella |
collection | PubMed |
description | Although generalist insect herbivores can migrate and rapidly adapt to a broad range of host plants, they can face significant difficulties when accidentally migrating to novel and marginally suitable hosts. What happens, both in performance and gene expression regulation, if these marginally suitable hosts must be used for multiple generations before migration to a suitable host can take place, largely remains unknown. In this study, we established multigenerational colonies of the whitefly Bemisia tabaci, a generalist phloem-feeding species, adapted to a marginally suitable host (habanero pepper) or an optimal host (cotton). We used reciprocal host tests to estimate the differences in performance of the populations on both hosts under optimal (30°C) and mild-stressful (24°C) temperature conditions, and documented the associated transcriptomic changes. The habanero pepper-adapted population greatly improved its performance on habanero pepper but did not reach its performance level on cotton, the original host. It also showed reduced performance on cotton, relative to the nonadapted population, and an antagonistic effect of the lower-temperature stressor. The transcriptomic data revealed that most of the expression changes, associated with long-term adaptation to habanero pepper, can be categorized as “evolved” with no initial plastic response. Three molecular functions dominated: enhanced formation of cuticle structural constituents, enhanced activity of oxidation–reduction processes involved in neutralization of phytotoxins and reduced production of proteins from the cathepsin B family. Taken together, these findings indicate that generalist insects can adapt to novel host plants by modifying the expression of a relatively small set of specific molecular functions. |
format | Online Article Text |
id | pubmed-9372648 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-93726482022-08-12 Evolved Transcriptional Responses and Their Trade-Offs after Long-Term Adaptation of Bemisia tabaci to a Marginally Suitable Host Tadmor, Ella Juravel, Ksenia Morin, Shai Santos-Garcia, Diego Genome Biol Evol Research Article Although generalist insect herbivores can migrate and rapidly adapt to a broad range of host plants, they can face significant difficulties when accidentally migrating to novel and marginally suitable hosts. What happens, both in performance and gene expression regulation, if these marginally suitable hosts must be used for multiple generations before migration to a suitable host can take place, largely remains unknown. In this study, we established multigenerational colonies of the whitefly Bemisia tabaci, a generalist phloem-feeding species, adapted to a marginally suitable host (habanero pepper) or an optimal host (cotton). We used reciprocal host tests to estimate the differences in performance of the populations on both hosts under optimal (30°C) and mild-stressful (24°C) temperature conditions, and documented the associated transcriptomic changes. The habanero pepper-adapted population greatly improved its performance on habanero pepper but did not reach its performance level on cotton, the original host. It also showed reduced performance on cotton, relative to the nonadapted population, and an antagonistic effect of the lower-temperature stressor. The transcriptomic data revealed that most of the expression changes, associated with long-term adaptation to habanero pepper, can be categorized as “evolved” with no initial plastic response. Three molecular functions dominated: enhanced formation of cuticle structural constituents, enhanced activity of oxidation–reduction processes involved in neutralization of phytotoxins and reduced production of proteins from the cathepsin B family. Taken together, these findings indicate that generalist insects can adapt to novel host plants by modifying the expression of a relatively small set of specific molecular functions. Oxford University Press 2022-07-26 /pmc/articles/PMC9372648/ /pubmed/35880721 http://dx.doi.org/10.1093/gbe/evac118 Text en © The Author(s) 2022. Published by Oxford University Press on behalf of Society for Molecular Biology and Evolution. https://creativecommons.org/licenses/by-nc/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com |
spellingShingle | Research Article Tadmor, Ella Juravel, Ksenia Morin, Shai Santos-Garcia, Diego Evolved Transcriptional Responses and Their Trade-Offs after Long-Term Adaptation of Bemisia tabaci to a Marginally Suitable Host |
title | Evolved Transcriptional Responses and Their Trade-Offs after Long-Term Adaptation of Bemisia tabaci to a Marginally Suitable Host |
title_full | Evolved Transcriptional Responses and Their Trade-Offs after Long-Term Adaptation of Bemisia tabaci to a Marginally Suitable Host |
title_fullStr | Evolved Transcriptional Responses and Their Trade-Offs after Long-Term Adaptation of Bemisia tabaci to a Marginally Suitable Host |
title_full_unstemmed | Evolved Transcriptional Responses and Their Trade-Offs after Long-Term Adaptation of Bemisia tabaci to a Marginally Suitable Host |
title_short | Evolved Transcriptional Responses and Their Trade-Offs after Long-Term Adaptation of Bemisia tabaci to a Marginally Suitable Host |
title_sort | evolved transcriptional responses and their trade-offs after long-term adaptation of bemisia tabaci to a marginally suitable host |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9372648/ https://www.ncbi.nlm.nih.gov/pubmed/35880721 http://dx.doi.org/10.1093/gbe/evac118 |
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