Host-specificity of moss-associated fungal communities in the Ny-Ålesund region (Svalbard, High Arctic) as revealed by amplicon pyrosequencing
- Author:
- Zhang T., Wang N. & Yu L.
- Year:
- 2021
- Journal:
- Fungal Ecology
- Pages:
- 53: 101092 [8 p.]
- Url:
- https://doi.org/10.1016/j.funeco.2021.101092
Fungal communities play a significant role in regulating ecological processes in the Arctic tundra. However, the
extent to which the Arctic moss species and host types (moss, lichen and vascular plant) determine the richness,
diversity, and composition of fungal communities at a local scale has not been quantitatively explored. Using 454
pyrosequencing in the current study, we characterized the fungal communities associated with six moss species
(Andreaea rupestris, Bryum pseudotriquetrum, Hymenoloma crispulum, Polytrichastrum alpinum, Racomitrium lanuginosum,
and Sanionia uncinata) and compared them with fungal communities associated with lichens and
vascular plants in the Ny-Ålesund region (High Arctic). Host-species preference had greater explanatory power
than geographical factors (longitude, latitude, elevation) in shaping moss-associated fungal communities. Fungal
communities associated with mosses differed significantly from those associated with vascular plants and lichens,
suggesting specificity of the fungal communities among three host types. Pairwise comparison analysis also
indicated that the relative abundance of many taxonomic groups (e.g., Chaetothyriales, Leotiales, Catenulifera,
Alatospora, and Toxicocladosporium) significantly differed between mosses and the other two host types. These
results suggest host factors significantly affect the distribution of the fungal species associated with these moss
species in the local-scale Arctic tundra.
Keywords: Fungal diversity; Community composition; High-throughput sequencing; Geographical factor; Moss.
- Id:
- 33618
- Submitter:
- zdenek
- Post_time:
- Thursday, 08 July 2021 10:36