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Citation for Study 20544

About Citation title: "Genotypic diversity in root-endophytic fungi reflects efficient dispersal and environmental adaptation".
About Study name: "Genotypic diversity in root-endophytic fungi reflects efficient dispersal and environmental adaptation".
About This study is part of submission 20544 (Status: Published).

Citation

Glynou K., Tahir A., Haghi kia S., Thines M., & Macia-vicente J.G. 2017. Genotypic diversity in root-endophytic fungi reflects efficient dispersal and environmental adaptation. Molecular Ecology , .

Authors

  • Glynou K. (submitter)
  • Tahir A.
  • Haghi kia S.
  • Thines M.
  • Macia-vicente J.G. Phone +49-069-798-42090

Abstract

Studying community structure and dynamics of plant-associated fungi is the basis for unravelling their interactions with hosts and ecosystem functions. A recent sampling revealed that only a few fungal groups, as defined by ITS sequence similarity, dominate root endophytic communities of non-mycorrhizal plants of Microthlaspi spp. across Europe. Strains of these fungi display a broad phenotypic and functional variability, which suggests a genetic variability masked by ITS clustering into operational taxonomic units (OTUs). The aims of this study were to identify how genetic similarity patterns of these fungi change across environments and to evaluate their ability to disperse and adapt to ecological conditions. A first ITS-based haplotype analysis of ten widespread OTUs mostly showed a low to moderate genotypic differentiation, with the exception of a group identified as Cadophora sp. that was highly diverse. A multilocus phylogeny based on additional genetic loci (TEF-1α, TUB, ACT) and AFLP profiling of 186 strains representative of the five dominant OTUs, revealed a weak association of genetic differences with geography and environmental conditions, including bioclimatic and soil factors. Our findings suggest that dominant root endophytes have efficient dispersal capabilities, and that their distribution is hardly affected by environmental filtering. Other processes, such as inter- and intraspecific biotic interactions may be decisive for the local assembly of their communities.

Keywords

dispersal limitation, environmental filtering, genotyping, microbial biogeography, root endophytes

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About this resource

  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S20544
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