Bioscience of Microbiota, Food and Health
Online ISSN : 2186-3342
ISSN-L : 2186-3342
Revealing the genomic differences between two subgroups in Lactobacillus gasseri
Ipputa TADAYasuhiro TANIZAWAAkihito ENDOMasanori TOHNOMasanori ARITA
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Supplementary material

2017 Volume 36 Issue 4 Pages 155-159


Being an autochthonous species in humans, Lactobacillus gasseri is widely used as a probiotic for fermented products. We thoroughly compared the gene contents of 75 L. gasseri genomes and identified two intraspecific groups by the average nucleotide identity (ANI) threshold of 94%. Group I, with 48 strains, possessed 53 group-specific genes including the gassericin T cluster (9 genes) and N-acyl homoserine lactone lactonase. Group II, with 27 strains, including the type strain ATCC 33323, possessed group-specific genes with plasmid- or phage-related annotations. The genomic differences provide evidences for demarcating a new probiotic group within L. gasseri.

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© 2017 by BMFH Press

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