Hypersaline Lake Urmia: a Potential Hotspot for Microbial Genomic Variation

Overview

Journal Sci Rep

Specialty Science

Date 2023 Jan 7

PMID 36611086

Authors

Roohollah Kheiri

Maliheh Mehrshad

Ahmad Ali Pourbabaee

Antonio Ventosa

Mohammad Ali Amoozegar

Affiliations

Soon will be listed here.

Abstract

Lake Urmia located in Iran is a hypersaline environment with a salinity of about 27% (w/v). Metagenomic analyses of water samples collected from six locations in the lake exhibited a microbial community dominated by representatives of the family Haloferacaceae (69.8%), mainly those affiliated to only two genera, Haloquadratum (59.3%) and Halonotius (9.1%). Similar to other hypersaline lakes, the bacterial community was dominated by Salinibacter ruber (23.3%). Genomic variation analysis by inspecting single nucleotide variations (SNVs) and insertions/deletions (INDELs) exhibited a high level of SNVs and insertions, most likely through transformation for abundant taxa in the Lake Urmia community. We suggest that the extreme conditions of Lake Urmia and specifically its high ionic concentrations could potentially increase the SNVs and insertions, which can consequently hamper the assembly and genome reconstruction from metagenomic reads of Lake Urmia.

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