Community composition of arctic root-associated fungi mirrors host plant phylogeny
ABSTRACT The number of plant species regarded as non-mycorrhizal increases at higher latitudes, and several plant species in the High-Arctic Archipelago Svalbard have been reported as non-mycorrhizal. We used the rRNA ITS2 and 18S gene markers to survey which fungi, as well as other micro-eukaryotes...
Published in: | FEMS Microbiology Ecology |
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Oxford University Press (OUP)
2020
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Online Access: | http://dx.doi.org/10.1093/femsec/fiaa185 http://academic.oup.com/femsec/advance-article-pdf/doi/10.1093/femsec/fiaa185/33739904/fiaa185.pdf http://academic.oup.com/femsec/article-pdf/96/11/fiaa185/36116223/fiaa185.pdf |
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croxfordunivpr:10.1093/femsec/fiaa185 2024-06-23T07:48:51+00:00 Community composition of arctic root-associated fungi mirrors host plant phylogeny Botnen, S S Thoen, E Eidesen, P B Krabberød, A K Kauserud, H Norwegian Research Council University of Oslo 2020 http://dx.doi.org/10.1093/femsec/fiaa185 http://academic.oup.com/femsec/advance-article-pdf/doi/10.1093/femsec/fiaa185/33739904/fiaa185.pdf http://academic.oup.com/femsec/article-pdf/96/11/fiaa185/36116223/fiaa185.pdf en eng Oxford University Press (OUP) http://creativecommons.org/licenses/by-nc/4.0/ FEMS Microbiology Ecology volume 96, issue 11 ISSN 1574-6941 journal-article 2020 croxfordunivpr https://doi.org/10.1093/femsec/fiaa185 2024-06-04T06:15:22Z ABSTRACT The number of plant species regarded as non-mycorrhizal increases at higher latitudes, and several plant species in the High-Arctic Archipelago Svalbard have been reported as non-mycorrhizal. We used the rRNA ITS2 and 18S gene markers to survey which fungi, as well as other micro-eukaryotes, were associated with roots of 31 arctic plant species not usually regarded as mycorrhizal in Svalbard. We assessed to what degree the root-associated fungi showed any host preference and whether the phylogeny of the plant hosts may mirror the composition of root-associated fungi. Fungal communities were largely structured according to host plant identity and to a less extent by environmental factors. We observed a positive relationship between the phylogenetic distance of host plants and the distance of fungal community composition between samples, indicating that the evolutionary history of the host plants plays a major role for which fungi colonize the plant roots. In contrast to the ITS2 marker, the 18S rRNA gene marker showed that chytrid fungi were prevalently associated with plant roots, together with a wide spectrum of amoeba-like protists and nematodes. Our study confirms that arbuscular mycorrhizal (AM) fungi are present also in arctic environments in low abundance. Article in Journal/Newspaper Arctic Archipelago Arctic Svalbard Oxford University Press Arctic Svalbard FEMS Microbiology Ecology 96 11 |
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Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
description |
ABSTRACT The number of plant species regarded as non-mycorrhizal increases at higher latitudes, and several plant species in the High-Arctic Archipelago Svalbard have been reported as non-mycorrhizal. We used the rRNA ITS2 and 18S gene markers to survey which fungi, as well as other micro-eukaryotes, were associated with roots of 31 arctic plant species not usually regarded as mycorrhizal in Svalbard. We assessed to what degree the root-associated fungi showed any host preference and whether the phylogeny of the plant hosts may mirror the composition of root-associated fungi. Fungal communities were largely structured according to host plant identity and to a less extent by environmental factors. We observed a positive relationship between the phylogenetic distance of host plants and the distance of fungal community composition between samples, indicating that the evolutionary history of the host plants plays a major role for which fungi colonize the plant roots. In contrast to the ITS2 marker, the 18S rRNA gene marker showed that chytrid fungi were prevalently associated with plant roots, together with a wide spectrum of amoeba-like protists and nematodes. Our study confirms that arbuscular mycorrhizal (AM) fungi are present also in arctic environments in low abundance. |
author2 |
Norwegian Research Council University of Oslo |
format |
Article in Journal/Newspaper |
author |
Botnen, S S Thoen, E Eidesen, P B Krabberød, A K Kauserud, H |
spellingShingle |
Botnen, S S Thoen, E Eidesen, P B Krabberød, A K Kauserud, H Community composition of arctic root-associated fungi mirrors host plant phylogeny |
author_facet |
Botnen, S S Thoen, E Eidesen, P B Krabberød, A K Kauserud, H |
author_sort |
Botnen, S S |
title |
Community composition of arctic root-associated fungi mirrors host plant phylogeny |
title_short |
Community composition of arctic root-associated fungi mirrors host plant phylogeny |
title_full |
Community composition of arctic root-associated fungi mirrors host plant phylogeny |
title_fullStr |
Community composition of arctic root-associated fungi mirrors host plant phylogeny |
title_full_unstemmed |
Community composition of arctic root-associated fungi mirrors host plant phylogeny |
title_sort |
community composition of arctic root-associated fungi mirrors host plant phylogeny |
publisher |
Oxford University Press (OUP) |
publishDate |
2020 |
url |
http://dx.doi.org/10.1093/femsec/fiaa185 http://academic.oup.com/femsec/advance-article-pdf/doi/10.1093/femsec/fiaa185/33739904/fiaa185.pdf http://academic.oup.com/femsec/article-pdf/96/11/fiaa185/36116223/fiaa185.pdf |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Archipelago Arctic Svalbard |
genre_facet |
Arctic Archipelago Arctic Svalbard |
op_source |
FEMS Microbiology Ecology volume 96, issue 11 ISSN 1574-6941 |
op_rights |
http://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.1093/femsec/fiaa185 |
container_title |
FEMS Microbiology Ecology |
container_volume |
96 |
container_issue |
11 |
_version_ |
1802639180809895936 |