Genes associated to lactose metabolism illustrate the high diversity of Carnobacterium maltaromaticum

被引：3

作者：

Iskandar, Christelle F. ^{[1
]}

Cailliez-Grimal, Catherine ^{[1
]}

Rahman, Abdur ^{[1
,2
]}

Rondags, Emmanuel ^{[3
]}

Remenant, Benoit ^{[4
,5
]}

Zagorec, Monique ^{[4
,5
]}

Leisner, Jorgen J. ^{[6
]}

Borges, Frederic ^{[1
]}

Revol-Junelles, Anne-Marie ^{[1
]}

机构：

[1] Univ Lorraine, Lab Ingn Biomol LIBio, Vandoeuvre Les Nancy, France

[2] Natl Univ Sci & Technol, Atta Ur Rahman Sch Appl Biosci, Dept Ind Biotechnol, Islamabad 44000, Pakistan

[3] Univ Lorraine, CNRS, Lab React & Genie Proc, UPR 3349, Nancy, France

[4] INRA, Secalim UMR1014, F-44307 Nantes, France

[5] LUNAM Univ, Oniris, F-44307 Nantes, France

[6] Univ Copenhagen, Dept Vet Dis Biol, Fac Hlth & Med Sci, Copenhagen, Denmark

来源：

FOOD MICROBIOLOGY | 2016年 / 58卷

关键词：

Carnobacterium; Lactose; Galactose; Comparative genomic analysis; Diversity; LACTIC-ACID BACTERIUM; STREPTOCOCCUS-THERMOPHILUS; GALACTOSE UTILIZATION; SHORT-COMMUNICATION; LACTOCOCCUS-LACTIS; LELOIR PATHWAY; SEQUENCE; EXPRESSION; TRANSPORT; CLUSTERS;

D O I：

10.1016/j.fm.2016.03.008

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The dairy population of Carnobacterium maltaromaticum is characterized by a high diversity suggesting a high diversity of the genetic traits linked to the dairy process. As lactose is the main carbon source in milk, the genetics of lactose metabolism was investigated in this LAB. Comparative genomic analysis revealed that the species C. maltaromaticum exhibits genes related to the Leloir and the tagatose-6-phosphate (Tagatose-6P) pathways. More precisely, strains can bear genes related to one or both pathways and several strains apparently do not contain homologs related to these pathways. Analysis at the population scale revealed that the Tagatose-6P and the Leloir encoding genes are disseminated in multiple phylogenetic lineages of C. maltaromaticum: genes of the Tagatose-6P pathway are present in the lineages I, II and III, and genes of the Leloir pathway are present in the lineages I, III and IV. These data suggest that these genes evolved thanks to horizontal transfer, genetic duplication and translocation. We hypothesize that the lac and gal genes evolved in C. maltaromaticum according to a complex scenario that mirrors the high population diversity. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：79 / 86

页数：8

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