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KMID : 0545120200300030341
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Journal of Microbiology and Biotechnology
2020 Volume.30 No. 3 p.341 ~ p.351
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Comparative Genomic Analysis of Food-Originated Coagulase-Negative Staphylococcus: Analysis of Conserved Core Genes and Diversity of the Pan-Genome
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Heo So-Jeong
Lee Jung-Sug
Lee Jong-Hoon
Jeong Do-Won
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Abstract
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To shed light on the genetic differences among food-originated coagulase-negative Staphylococcus (CNS), we performed pan-genome analysis of five species: Staphylococcus carnosus (two strains), Staphylococcus equorum (two strains), Staphylococcus succinus (three strains), Staphylococcus xylosus (two strains), and Staphylococcus saprophyticus (one strain). The pan-genome size increases with each new strain and currently holds about 4,500 genes from 10 genomes. Specific genes were shown to be strain dependent but not species dependent. Most specific genes were of unknown function or encoded restriction-modification enzymes, transposases, or prophages. Our results indicate that unique genes have been acquired or lost by convergent evolution within individual strains.
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KEYWORD
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Coagulase-negative Staphylococcus, pan-genome, prophage, transposase
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