Journal
PEERJ
Volume 10, Issue -, Pages -Publisher
PEERJ INC
DOI: 10.7717/peerj.13579
Keywords
Cuatro Cienegas Coahuila; Microbial communities; Phylogenetic diversity; Rare biosphere; Metabolome analysis
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The microbial diversity and metabolome profile of a unique hypersaline elastic microbial mat from Cuatro Cienegas Basin in the Chihuahuan Desert of Mexico were evaluated. The microbial diversity was assessed through NGS-based ITS and 16S rDNA gene sequencing, revealing a low number of abundant taxa and a more diverse rare biosphere. Furthermore, each sample showed a distinct metabolome profile with potentially biologically relevant compounds.
We evaluated the microbial diversity and metabolome profile of an uncommon hypersaline elastic microbial mat from Cuatro Cienegas Basin (CCB) in the Chihuahuan Desert of Coahuila, Mexico. We collected ten samples on a small scale transect (1.5-m) and described its microbial diversity through NGS-based ITS and 16S rDNA gene sequencing. A very low number of taxa comprised a considerable proportion of the mat and were shared across all sampling points, whereas the rare biosphere was more phylogenetically diverse (Faith's Phylogenetic Diversity (FPD) index) and phylogenetically disperse (using a null model distribution of Phylogenetic Species Clustering (nmdPSC)) than the abundant (high read count) taxa for both analyzed libraries. We also found a distinctive metabolome profile for each sample and were able to tentatively annotate several classes of compounds with relevant biological properties.
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