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Host genetic variation strongly influences the microbiome structure and function in fungal fruiting-bodies
Univ Tartu, Inst Ecol & Earth Sci, Tartu, Estonia.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Systematic Biology.
Univ Tartu, Inst Ecol & Earth Sci, Tartu, Estonia.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Systematic Biology.
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2018 (English)In: Environmental Microbiology, ISSN 1462-2912, E-ISSN 1462-2920, Vol. 20, no 5, p. 1641-1650Article in journal (Refereed) Published
Abstract [en]

Despite increasing knowledge on host-associated microbiomes, little is known about mechanisms underlying fungus-microbiome interactions. This study aimed to examine the relative importance of host genetic, geographic and environmental variations in structuring fungus-associated microbiomes. We analyzed the taxonomic composition and function of microbiomes inhabiting fungal fruiting-bodies in relation to host genetic variation, soil pH and geographic distance between samples. For this, we sequenced the metagenomes of 40 fruiting-bodies collected from six fairy rings (i.e., genets) of a sapro-trophic fungus Marasmius oreades. Our analyses revealed that fine genetic variations between host fungi could strongly affect their associated microbiome, explaining, respectively, 25% and 37% of the variation in microbiome structure and function, whereas geographic distance and soil pH remained of secondary importance. These results, together with the smaller genome size of fungi compared to other eukaryotes, suggest that fruiting-bodies are suitable for further genome-centric studies on hostmicrobiome interactions.

Place, publisher, year, edition, pages
WILEY , 2018. Vol. 20, no 5, p. 1641-1650
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Microbiology
Identifiers
URN: urn:nbn:se:uu:diva-365992DOI: 10.1111/1462-2920.14069ISI: 000445161800002PubMedID: 29441658OAI: oai:DiVA.org:uu-365992DiVA, id: diva2:1265087
Funder
The Royal Swedish Academy of SciencesHelge Ax:son Johnsons stiftelse Available from: 2018-11-22 Created: 2018-11-22 Last updated: 2018-11-22Bibliographically approved

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Hiltunen, MarkusFurneaux, Brendan R.Johannesson, HannaRyberg, MartinBahram, Mohammad

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