Accounting for environmental variation in co-occurrence modelling reveals the importance of positive interactions in root-associated fungal communities
Understanding the role of interspecific interactions in shaping ecological communities is one of the central goals in community ecology. In fungal communities, measuring interspecific interactions directly is challenging because these communities are composed of large numbers of species, many of whi...
Published in: | Molecular Ecology |
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WILEY-BLACKWELL
2020
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Online Access: | https://aaltodoc.aalto.fi/handle/123456789/102891 https://doi.org/10.1111/mec.15516 |
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ftaaltouniv:oai:aaltodoc.aalto.fi:123456789/102891 2023-05-15T14:51:11+02:00 Accounting for environmental variation in co-occurrence modelling reveals the importance of positive interactions in root-associated fungal communities Abrego, Nerea Roslin, Tomas Huotari, Tea Tack, Ayco J.M. Lindahl, Björn D. Tikhonov, Gleb Somervuo, Panu Schmidt, Niels Martin Ovaskainen, Otso University of Helsinki Stockholm University Swedish University of Agricultural Sciences Department of Computer Science Aarhus University Aalto-yliopisto Aalto University 2020-07-01 application/pdf https://aaltodoc.aalto.fi/handle/123456789/102891 https://doi.org/10.1111/mec.15516 en eng WILEY-BLACKWELL MOLECULAR ECOLOGY Volume 29, issue 14 Abrego , N , Roslin , T , Huotari , T , Tack , A J M , Lindahl , B D , Tikhonov , G , Somervuo , P , Schmidt , N M & Ovaskainen , O 2020 , ' Accounting for environmental variation in co-occurrence modelling reveals the importance of positive interactions in root-associated fungal communities ' , MOLECULAR ECOLOGY , vol. 29 , no. 14 , pp. 2736-2746 . https://doi.org/10.1111/mec.15516 0962-1083 PURE UUID: 134eeeb9-4e02-4ee2-9308-7921cfa007e0 PURE ITEMURL: https://research.aalto.fi/en/publications/134eeeb9-4e02-4ee2-9308-7921cfa007e0 PURE LINK: http://www.scopus.com/inward/record.url?scp=85087458401&partnerID=8YFLogxK PURE FILEURL: https://research.aalto.fi/files/56594967/mec.15516.pdf https://aaltodoc.aalto.fi/handle/123456789/102891 URN:NBN:fi:aalto-202103032179 doi:10.1111/mec.15516 openAccess Arctic co-occurrence endophyte interaction network mycorrhiza symbiotic network A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä publishedVersion 2020 ftaaltouniv https://doi.org/10.1111/mec.15516 2022-12-15T19:32:12Z Understanding the role of interspecific interactions in shaping ecological communities is one of the central goals in community ecology. In fungal communities, measuring interspecific interactions directly is challenging because these communities are composed of large numbers of species, many of which are unculturable. An indirect way of assessing the role of interspecific interactions in determining community structure is to identify the species co-occurrences that are not constrained by environmental conditions. In this study, we investigated co-occurrences among root-associated fungi, asking whether fungi co-occur more or less strongly than expected based on the environmental conditions and the host plant species examined. We generated molecular data on root-associated fungi of five plant species evenly sampled along an elevational gradient at a high arctic site. We analysed the data using a joint species distribution modelling approach that allowed us to identify those co-occurrences that could be explained by the environmental conditions and the host plant species, as well as those co-occurrences that remained unexplained and thus more probably reflect interactive associations. Our results indicate that not only negative but also positive interactions play an important role in shaping microbial communities in arctic plant roots. In particular, we found that mycorrhizal fungi are especially prone to positively co-occur with other fungal species. Our results bring new understanding to the structure of arctic interaction networks by suggesting that interactions among root-associated fungi are predominantly positive. Peer reviewed Article in Journal/Newspaper Arctic Aalto University Publication Archive (Aaltodoc) Arctic Molecular Ecology 29 14 2736 2746 |
institution |
Open Polar |
collection |
Aalto University Publication Archive (Aaltodoc) |
op_collection_id |
ftaaltouniv |
language |
English |
topic |
Arctic co-occurrence endophyte interaction network mycorrhiza symbiotic network |
spellingShingle |
Arctic co-occurrence endophyte interaction network mycorrhiza symbiotic network Abrego, Nerea Roslin, Tomas Huotari, Tea Tack, Ayco J.M. Lindahl, Björn D. Tikhonov, Gleb Somervuo, Panu Schmidt, Niels Martin Ovaskainen, Otso Accounting for environmental variation in co-occurrence modelling reveals the importance of positive interactions in root-associated fungal communities |
topic_facet |
Arctic co-occurrence endophyte interaction network mycorrhiza symbiotic network |
description |
Understanding the role of interspecific interactions in shaping ecological communities is one of the central goals in community ecology. In fungal communities, measuring interspecific interactions directly is challenging because these communities are composed of large numbers of species, many of which are unculturable. An indirect way of assessing the role of interspecific interactions in determining community structure is to identify the species co-occurrences that are not constrained by environmental conditions. In this study, we investigated co-occurrences among root-associated fungi, asking whether fungi co-occur more or less strongly than expected based on the environmental conditions and the host plant species examined. We generated molecular data on root-associated fungi of five plant species evenly sampled along an elevational gradient at a high arctic site. We analysed the data using a joint species distribution modelling approach that allowed us to identify those co-occurrences that could be explained by the environmental conditions and the host plant species, as well as those co-occurrences that remained unexplained and thus more probably reflect interactive associations. Our results indicate that not only negative but also positive interactions play an important role in shaping microbial communities in arctic plant roots. In particular, we found that mycorrhizal fungi are especially prone to positively co-occur with other fungal species. Our results bring new understanding to the structure of arctic interaction networks by suggesting that interactions among root-associated fungi are predominantly positive. Peer reviewed |
author2 |
University of Helsinki Stockholm University Swedish University of Agricultural Sciences Department of Computer Science Aarhus University Aalto-yliopisto Aalto University |
format |
Article in Journal/Newspaper |
author |
Abrego, Nerea Roslin, Tomas Huotari, Tea Tack, Ayco J.M. Lindahl, Björn D. Tikhonov, Gleb Somervuo, Panu Schmidt, Niels Martin Ovaskainen, Otso |
author_facet |
Abrego, Nerea Roslin, Tomas Huotari, Tea Tack, Ayco J.M. Lindahl, Björn D. Tikhonov, Gleb Somervuo, Panu Schmidt, Niels Martin Ovaskainen, Otso |
author_sort |
Abrego, Nerea |
title |
Accounting for environmental variation in co-occurrence modelling reveals the importance of positive interactions in root-associated fungal communities |
title_short |
Accounting for environmental variation in co-occurrence modelling reveals the importance of positive interactions in root-associated fungal communities |
title_full |
Accounting for environmental variation in co-occurrence modelling reveals the importance of positive interactions in root-associated fungal communities |
title_fullStr |
Accounting for environmental variation in co-occurrence modelling reveals the importance of positive interactions in root-associated fungal communities |
title_full_unstemmed |
Accounting for environmental variation in co-occurrence modelling reveals the importance of positive interactions in root-associated fungal communities |
title_sort |
accounting for environmental variation in co-occurrence modelling reveals the importance of positive interactions in root-associated fungal communities |
publisher |
WILEY-BLACKWELL |
publishDate |
2020 |
url |
https://aaltodoc.aalto.fi/handle/123456789/102891 https://doi.org/10.1111/mec.15516 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
MOLECULAR ECOLOGY Volume 29, issue 14 Abrego , N , Roslin , T , Huotari , T , Tack , A J M , Lindahl , B D , Tikhonov , G , Somervuo , P , Schmidt , N M & Ovaskainen , O 2020 , ' Accounting for environmental variation in co-occurrence modelling reveals the importance of positive interactions in root-associated fungal communities ' , MOLECULAR ECOLOGY , vol. 29 , no. 14 , pp. 2736-2746 . https://doi.org/10.1111/mec.15516 0962-1083 PURE UUID: 134eeeb9-4e02-4ee2-9308-7921cfa007e0 PURE ITEMURL: https://research.aalto.fi/en/publications/134eeeb9-4e02-4ee2-9308-7921cfa007e0 PURE LINK: http://www.scopus.com/inward/record.url?scp=85087458401&partnerID=8YFLogxK PURE FILEURL: https://research.aalto.fi/files/56594967/mec.15516.pdf https://aaltodoc.aalto.fi/handle/123456789/102891 URN:NBN:fi:aalto-202103032179 doi:10.1111/mec.15516 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1111/mec.15516 |
container_title |
Molecular Ecology |
container_volume |
29 |
container_issue |
14 |
container_start_page |
2736 |
op_container_end_page |
2746 |
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1766322244226646016 |