Whole-Genome Comparisons Among the Genus Shewanella Reveal the Enrichment of Genes Encoding Ankyrin-Repeats Containing Proteins in Sponge-Associated Bacteria

Frontiers in Microbiology
Anoop Alex, Agostinho Antunes

Abstract

The bacterial members of the genus Shewanella are widely distributed and inhabit both freshwater and marine environments. Some members of Shewanella have gained considerable attention due to its ability to survive in redox-stratified environments. However, a gap of knowledge exists on the key genomic features of the sponge-associated Shewanella sp. involving the successful host-bacteria interaction, as sponge-symbiotic Shewanella are largely underrepresented in the public repositories. With the aim of identifying the genomic signatures of sponge-Shewanella association, we generated a high-quality genome data of a sponge-associated, Shewanella sp. OPT22, isolated from the intertidal marine sponge Ophlitaspongia papilla and performed comprehensive comparative analyses of 68 genome strains of the genus Shewanella including two previously reported genomes of sponge-associated bacteria, Shewanella spongiae KCTC 22492 and Shewanella sp. Alg231_23. The 16S rRNA-based phylogenetic reconstruction showed the well-supported affiliation of OPT22 and KCTC 22492 with previously reported sponge-associated bacteria, affirming the "sponge-specific" nature of these two bacterial strains isolated from different marine sponge species from the Atla...Continue Reading

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Datasets Mentioned

BETA
JX206726
PGVH00000000

Methods Mentioned

BETA
dissection
DNA exchange

Software Mentioned

VelvetK
pl
BlastKOALA
Clustal Omega
T346Hunter
MrAIC
BLAST
PSORTb
InterProScan
FASconCAT

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