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Evolutionary maintenance of genomic diversity within arbuscular mycorrhizal fungi
Most organisms are built from a single genome. In striking contrast, arbuscular mycorrhizal fungi appear to maintain genomic variation within an individual fungal network. Arbuscular mycorrhizal fungi dwell in the soil, form mutualistic networks with plants, and bear multiple, potentially geneticall...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6405528/ https://www.ncbi.nlm.nih.gov/pubmed/30891190 http://dx.doi.org/10.1002/ece3.4834 |
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author | Scott, Thomas W. Kiers, E. Toby Cooper, Guy A. dos Santos, Miguel West, Stuart A. |
author_facet | Scott, Thomas W. Kiers, E. Toby Cooper, Guy A. dos Santos, Miguel West, Stuart A. |
author_sort | Scott, Thomas W. |
collection | PubMed |
description | Most organisms are built from a single genome. In striking contrast, arbuscular mycorrhizal fungi appear to maintain genomic variation within an individual fungal network. Arbuscular mycorrhizal fungi dwell in the soil, form mutualistic networks with plants, and bear multiple, potentially genetically diverse nuclei within a network. We explore, from a theoretical perspective, why such genetic diversity might be maintained within individuals. We consider selection acting within and between individual fungal networks. We show that genetic diversity could provide a benefit at the level of the individual, by improving growth in variable environments, and that this can stabilize genetic diversity even in the presence of nuclear conflict. Arbuscular mycorrhizal fungi complicate our understanding of organismality, but our findings offer a way of understanding such biological anomalies. |
format | Online Article Text |
id | pubmed-6405528 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-64055282019-03-19 Evolutionary maintenance of genomic diversity within arbuscular mycorrhizal fungi Scott, Thomas W. Kiers, E. Toby Cooper, Guy A. dos Santos, Miguel West, Stuart A. Ecol Evol Original Research Most organisms are built from a single genome. In striking contrast, arbuscular mycorrhizal fungi appear to maintain genomic variation within an individual fungal network. Arbuscular mycorrhizal fungi dwell in the soil, form mutualistic networks with plants, and bear multiple, potentially genetically diverse nuclei within a network. We explore, from a theoretical perspective, why such genetic diversity might be maintained within individuals. We consider selection acting within and between individual fungal networks. We show that genetic diversity could provide a benefit at the level of the individual, by improving growth in variable environments, and that this can stabilize genetic diversity even in the presence of nuclear conflict. Arbuscular mycorrhizal fungi complicate our understanding of organismality, but our findings offer a way of understanding such biological anomalies. John Wiley and Sons Inc. 2019-02-11 /pmc/articles/PMC6405528/ /pubmed/30891190 http://dx.doi.org/10.1002/ece3.4834 Text en © 2019 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Research Scott, Thomas W. Kiers, E. Toby Cooper, Guy A. dos Santos, Miguel West, Stuart A. Evolutionary maintenance of genomic diversity within arbuscular mycorrhizal fungi |
title | Evolutionary maintenance of genomic diversity within arbuscular mycorrhizal fungi |
title_full | Evolutionary maintenance of genomic diversity within arbuscular mycorrhizal fungi |
title_fullStr | Evolutionary maintenance of genomic diversity within arbuscular mycorrhizal fungi |
title_full_unstemmed | Evolutionary maintenance of genomic diversity within arbuscular mycorrhizal fungi |
title_short | Evolutionary maintenance of genomic diversity within arbuscular mycorrhizal fungi |
title_sort | evolutionary maintenance of genomic diversity within arbuscular mycorrhizal fungi |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6405528/ https://www.ncbi.nlm.nih.gov/pubmed/30891190 http://dx.doi.org/10.1002/ece3.4834 |
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