A metabarcoding protocol targeting two DNA regions to analyze root-associated fungal communities in ferns and lycophytes.

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Version: Final published version
License: CC BY-NC-ND 4.0
Serval ID
serval:BIB_C7B6977C9062
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
A metabarcoding protocol targeting two DNA regions to analyze root-associated fungal communities in ferns and lycophytes.
Journal
Applications in plant sciences
Author(s)
Guillen-Otero T., Lee S.J., Chen C.W., Szoevenyi P., Kessler M.
ISSN
2168-0450 (Print)
ISSN-L
2168-0450
Publication state
Published
Issued date
06/2023
Peer-reviewed
Oui
Volume
11
Number
3
Pages
e11523
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Abstract
Detailed studies of the fungi associated with lycophytes and ferns provide crucial insights into the early evolution of land plants. However, most investigations to date have assessed fern-fungus interactions based only on visual root inspection. In the present research, we establish and evaluate a metabarcoding protocol to analyze the fungal communities associated with fern and lycophyte roots.
We used two primer pairs focused on the ITS rRNA region to screen the general fungal communities, and the 18S rRNA to target Glomeromycota fungi (i.e., arbuscular mycorrhizal fungi). To test these approaches, we collected and processed roots from 12 phylogenetically distant fern and lycophyte species.
We found marked compositional differences between the ITS and 18S data sets. While the ITS data set demonstrated the dominance of orders Glomerales (phylum Glomeromycota), Pleosporales, and Helotiales (both in phylum Ascomycota), the 18S data set revealed the greatest diversity of Glomeromycota. Non-metric multidimensional scaling (NMDS) ordination suggested an important geographical effect in sample similarities.
The ITS-based approach is a reliable and effective method to analyze the fungal communities associated with fern and lycophyte roots. The 18S approach is more appropriate for studies focused on the detailed screening of arbuscular mycorrhizal fungi.
Keywords
18S rRNA, DNA sequencing, Its, amplicons, ferns, lycophytes, metabarcoding, mycorrhizal fungi, ITS
Pubmed
Web of science
Open Access
Yes
Create date
23/06/2023 8:57
Last modification date
25/01/2024 7:44
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