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Local adaptation in natural European host grass populations with asymmetric symbiosis
Recent work on microbiomes is revealing the wealth and importance of plant-microbe interactions. Microbial symbionts are proposed to have profound effects on fitness of their host plants and vice versa, especially when their fitness is tightly linked. Here we studied local adaptation of host plants...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6469795/ https://www.ncbi.nlm.nih.gov/pubmed/30995278 http://dx.doi.org/10.1371/journal.pone.0215510 |
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author | Leinonen, Päivi H. Helander, Marjo Vázquez-de-Aldana, Beatriz R. Zabalgogeazcoa, Iñigo Saikkonen, Kari |
author_facet | Leinonen, Päivi H. Helander, Marjo Vázquez-de-Aldana, Beatriz R. Zabalgogeazcoa, Iñigo Saikkonen, Kari |
author_sort | Leinonen, Päivi H. |
collection | PubMed |
description | Recent work on microbiomes is revealing the wealth and importance of plant-microbe interactions. Microbial symbionts are proposed to have profound effects on fitness of their host plants and vice versa, especially when their fitness is tightly linked. Here we studied local adaptation of host plants and possible fitness contribution of such symbiosis in the context of abiotic environmental factors. We conducted a four-way multi-year reciprocal transplant experiment with natural populations of the perennial grass Festuca rubra s.l. from northern and southern Finland, Faroe Islands and Spain. We included F. rubra with and without transmitted symbiotic fungus Epichloë that is vertically transmitted via host seed. We found local adaptation across the European range, as evidenced by higher host fitness of the local geographic origin compared with nonlocals at three of the four studied sites, suggesting that selection pressures are driving evolution in different directions. Abiotic factors did not result in strong fitness effects related to Epichloë symbiosis, indicating that other factors such as herbivory are more likely to contribute to fitness differences between plants naturally occurring with or without Epichloë. Nevertheless, in the case of asymmetric symbiosis that is obligatory for the symbiont, abiotic conditions that affect performance of the host, may also cause selective pressure for the symbiont. |
format | Online Article Text |
id | pubmed-6469795 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-64697952019-05-03 Local adaptation in natural European host grass populations with asymmetric symbiosis Leinonen, Päivi H. Helander, Marjo Vázquez-de-Aldana, Beatriz R. Zabalgogeazcoa, Iñigo Saikkonen, Kari PLoS One Research Article Recent work on microbiomes is revealing the wealth and importance of plant-microbe interactions. Microbial symbionts are proposed to have profound effects on fitness of their host plants and vice versa, especially when their fitness is tightly linked. Here we studied local adaptation of host plants and possible fitness contribution of such symbiosis in the context of abiotic environmental factors. We conducted a four-way multi-year reciprocal transplant experiment with natural populations of the perennial grass Festuca rubra s.l. from northern and southern Finland, Faroe Islands and Spain. We included F. rubra with and without transmitted symbiotic fungus Epichloë that is vertically transmitted via host seed. We found local adaptation across the European range, as evidenced by higher host fitness of the local geographic origin compared with nonlocals at three of the four studied sites, suggesting that selection pressures are driving evolution in different directions. Abiotic factors did not result in strong fitness effects related to Epichloë symbiosis, indicating that other factors such as herbivory are more likely to contribute to fitness differences between plants naturally occurring with or without Epichloë. Nevertheless, in the case of asymmetric symbiosis that is obligatory for the symbiont, abiotic conditions that affect performance of the host, may also cause selective pressure for the symbiont. Public Library of Science 2019-04-17 /pmc/articles/PMC6469795/ /pubmed/30995278 http://dx.doi.org/10.1371/journal.pone.0215510 Text en © 2019 Leinonen et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Leinonen, Päivi H. Helander, Marjo Vázquez-de-Aldana, Beatriz R. Zabalgogeazcoa, Iñigo Saikkonen, Kari Local adaptation in natural European host grass populations with asymmetric symbiosis |
title | Local adaptation in natural European host grass populations with asymmetric symbiosis |
title_full | Local adaptation in natural European host grass populations with asymmetric symbiosis |
title_fullStr | Local adaptation in natural European host grass populations with asymmetric symbiosis |
title_full_unstemmed | Local adaptation in natural European host grass populations with asymmetric symbiosis |
title_short | Local adaptation in natural European host grass populations with asymmetric symbiosis |
title_sort | local adaptation in natural european host grass populations with asymmetric symbiosis |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6469795/ https://www.ncbi.nlm.nih.gov/pubmed/30995278 http://dx.doi.org/10.1371/journal.pone.0215510 |
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