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KMID : 0381120170390090945
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Genes and Genomics
2017 Volume.39 No. 9 p.945 ~ p.955
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Complete genome sequence and pathogenic genes analysis of Pectobacterium atroseptica JG10-08
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Zhang Dai
Zhou Yuan
Zhao Dongmei
Zhu Jiehua
Yang Zhihui
Zhu Mingming
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Abstract
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Pectobacterium atroseptica is known as a rod-shaped gram-negative bacterial pathogen associated with the blackleg of potato. P. atroseptica has been widely identified as the predominant agent causing tuber rot in temperate regions, a disease that leads to severe economic losses to potato industry. In this study, we provide the complete genome sequence of P. atroseptica JG10-08, which revealed that P. atroseptica strain JG10-08 carries a single 5,004,926 bp chromosome with 51.15% G+C content and harbors 4252 predicted coding genes. Phylogenetic analysis based on the genome sequences showed a close evolutionary relationship between P. atroseptica and Pectobacterium wasabiae. We discovered total 168 genes were potentially related to pathogenesis including 9 strain-specific genes encoding toxins on the genome of JG10-08. Further comparison with other species in Pectobacterium revealed a better understanding of pathogenic factors, especially secretion systems in P. atroseptica JG10-08. Collectively, the results of this research provide a solid foundation for discovering the underlying pathogenic mechanisms of P. atroseptica and offer the information to develop more effective strategies against blackleg of potatoes.
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KEYWORD
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Pectobacterium atroseptica, Genome sequence, Blackleg of potato, Tuber rot, Pathogenic factors
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