Comparative genome analysis of Lactobacillus mudanjiangensis , an understudied member of the Lactobacillus plantarum group

Microbial Genomics
Sander WuytsLebeer Sarah

Abstract

The genus Lactobacillus is known to be extremely diverse and consists of different phylogenetic groups that show a diversity that is roughly equal to the expected diversity of a typical bacterial genus. One of the most prominent phylogenetic groups within this genus is the Lactobacillus plantarum group, which contains the understudied Lactobacillus mudanjiangensis species. Before this study, only one L. mudanjiangensis strain, DSM 28402T, had been described, but without whole-genome analysis. In this study, three strains classified as L. mudanjiangensis were isolated from three different carrot juice fermentations and their whole-genome sequence was determined, together with the genome sequence of the type strain. The genomes of all four strains were compared with publicly available L. plantarum group genome sequences. This analysis showed that L. mudanjiangensis harboured the second largest genome size and gene count of the whole L. plantarum group. In addition, all members of this species showed the presence of a gene coding for a cellulose-degrading enzyme. Finally, three of the four L. mudanjiangensis strains studied showed the presence of pili on scanning electron microscopy (SEM) images, which were linked to conjugative g...Continue Reading

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Datasets Mentioned

BETA
PRJEB29655
BAI40953.1
LT991587
SRCM103356

Methods Mentioned

BETA
scanning electron microscopy
ICEs
ICE

Software Mentioned

blast
Python pyani package
R package gggenes
Recycler
Orthofinder
TXSScan
EggNOG
R package ggtree
fasta
SPAdes

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