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KMID : 0381120180400020217
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Genes and Genomics
2018 Volume.40 No. 2 p.217 ~ p.223
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Comparative genomic analysis of Lactobacillus plantarum GB-LP4 and identification of evolutionarily divergent genes in high-osmolarity environment
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Jung Jae-Hoon
Kim Kwon-Do
Yoo Dong-Ahn
Lee Chan-Ho
Kang Jung-Sun
Cho Kyung-Jin
Kang Dae-Kyung
Kwak Woo-Ri
Yoon Sook-Hee
Sohn Haw-Sun
Kim Hee-Bal
Cho Seo-Ae
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Abstract
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Lactobacillus plantarum is one of the widely-used probiotics and there have been a large number of advanced researches on the effectiveness of this species. However, the difference between previously reported plantarum strains, and the source of genomic variation among the strains were not clearly specified. In order to understand further on the molecular basis of L. plantarum on Korean traditional fermentation, we isolated the L. plantarum GB-LP4 from Korean fermented vegetable and conducted whole genome assembly. With comparative genomics approach, we identified the candidate genes that are expected to have undergone evolutionary acceleration. These genes have been reported to associate with the maintaining homeostasis, which are generally known to overcome instability in external environment including low pH or high osmotic pressure. Here, our results provide an evolutionary relationship between L. plantarum species and elucidate the candidate genes that play a pivotal role in evolutionary acceleration of GB-LP4 in high osmolarity environment. This study may provide guidance for further studies on L. plantarum.
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KEYWORD
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Lactobacillus plantarum, Genome, Comparative genomics, Bacterial evolution, dN/dS
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