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Fungal‐host diversity among mycoheterotrophic plants increases proportionally to their fungal‐host overlap

The vast majority of plants obtain an important proportion of vital resources from soil through mycorrhizal fungi. Generally, this happens in exchange of photosynthetically fixed carbon, but occasionally the interaction is mycoheterotrophic, and plants obtain carbon from mycorrhizal fungi. This proc...

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Autores principales: Gomes, Sofia I. F., Merckx, Vincent S. F. T., Saavedra, Serguei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5433980/
https://www.ncbi.nlm.nih.gov/pubmed/28515898
http://dx.doi.org/10.1002/ece3.2974
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author Gomes, Sofia I. F.
Merckx, Vincent S. F. T.
Saavedra, Serguei
author_facet Gomes, Sofia I. F.
Merckx, Vincent S. F. T.
Saavedra, Serguei
author_sort Gomes, Sofia I. F.
collection PubMed
description The vast majority of plants obtain an important proportion of vital resources from soil through mycorrhizal fungi. Generally, this happens in exchange of photosynthetically fixed carbon, but occasionally the interaction is mycoheterotrophic, and plants obtain carbon from mycorrhizal fungi. This process results in an antagonistic interaction between mycoheterotrophic plants and their fungal hosts. Importantly, the fungal‐host diversity available for plants is restricted as mycoheterotrophic interactions often involve narrow lineages of fungal hosts. Unfortunately, little is known whether fungal‐host diversity may be additionally modulated by plant–plant interactions through shared hosts. Yet, this may have important implications for plant competition and coexistence. Here, we use DNA sequencing data to investigate the interaction patterns between mycoheterotrophic plants and arbuscular mycorrhizal fungi. We find no phylogenetic signal on the number of fungal hosts nor on the fungal hosts shared among mycoheterotrophic plants. However, we observe a potential trend toward increased phylogenetic diversity of fungal hosts among mycoheterotrophic plants with increasing overlap in their fungal hosts. While these patterns remain for groups of plants regardless of location, we do find higher levels of overlap and diversity among plants from the same location. These findings suggest that species coexistence cannot be fully understood without attention to the two sides of ecological interactions.
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spelling pubmed-54339802017-05-17 Fungal‐host diversity among mycoheterotrophic plants increases proportionally to their fungal‐host overlap Gomes, Sofia I. F. Merckx, Vincent S. F. T. Saavedra, Serguei Ecol Evol Original Research The vast majority of plants obtain an important proportion of vital resources from soil through mycorrhizal fungi. Generally, this happens in exchange of photosynthetically fixed carbon, but occasionally the interaction is mycoheterotrophic, and plants obtain carbon from mycorrhizal fungi. This process results in an antagonistic interaction between mycoheterotrophic plants and their fungal hosts. Importantly, the fungal‐host diversity available for plants is restricted as mycoheterotrophic interactions often involve narrow lineages of fungal hosts. Unfortunately, little is known whether fungal‐host diversity may be additionally modulated by plant–plant interactions through shared hosts. Yet, this may have important implications for plant competition and coexistence. Here, we use DNA sequencing data to investigate the interaction patterns between mycoheterotrophic plants and arbuscular mycorrhizal fungi. We find no phylogenetic signal on the number of fungal hosts nor on the fungal hosts shared among mycoheterotrophic plants. However, we observe a potential trend toward increased phylogenetic diversity of fungal hosts among mycoheterotrophic plants with increasing overlap in their fungal hosts. While these patterns remain for groups of plants regardless of location, we do find higher levels of overlap and diversity among plants from the same location. These findings suggest that species coexistence cannot be fully understood without attention to the two sides of ecological interactions. John Wiley and Sons Inc. 2017-04-22 /pmc/articles/PMC5433980/ /pubmed/28515898 http://dx.doi.org/10.1002/ece3.2974 Text en © 2017 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution (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
Gomes, Sofia I. F.
Merckx, Vincent S. F. T.
Saavedra, Serguei
Fungal‐host diversity among mycoheterotrophic plants increases proportionally to their fungal‐host overlap
title Fungal‐host diversity among mycoheterotrophic plants increases proportionally to their fungal‐host overlap
title_full Fungal‐host diversity among mycoheterotrophic plants increases proportionally to their fungal‐host overlap
title_fullStr Fungal‐host diversity among mycoheterotrophic plants increases proportionally to their fungal‐host overlap
title_full_unstemmed Fungal‐host diversity among mycoheterotrophic plants increases proportionally to their fungal‐host overlap
title_short Fungal‐host diversity among mycoheterotrophic plants increases proportionally to their fungal‐host overlap
title_sort fungal‐host diversity among mycoheterotrophic plants increases proportionally to their fungal‐host overlap
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5433980/
https://www.ncbi.nlm.nih.gov/pubmed/28515898
http://dx.doi.org/10.1002/ece3.2974
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