Complete genome sequence of Bacillus velezensis YYC, a bacterium isolated from the tomato rhizosphere
2022
Yan, Yuechen | Xu, Weihui | Chen, Wenjing | Hu, Yunlong | Wang, Zhigang
The Bacillus velezensis YYC strain was isolated from the tomato rhizosphere. In a previous experiment, it increased tomato growth and induced systemic resistance against Ralstonia solanacearum. However, information on its genomic content is lacking. The complete genome sequence of the bacterium was described in this study. The genome size was 3,973,236 bp and consisted of 4034 genes in total, with a mean G + C content of 46.52%. In addition, 86 tRNAs and 27 ribosomal RNAs were identified. Fourteen clusters of secondary metabolites were identified. The KEGG database analysis showed that 69 genes were related to quorum sensing, which were important for microbe-plant interaction. In addition, genes involved in promoting plant growth and triggering plant immunity were identified from the genome. Based on digital DNA–DNA hybridizations (dDDH), B. velezensis YYC was most closely related with B. velezensis FZB42. The complete genome data of B. velezensis YYC will provide a basis for explanation of its growth-promoting mechanism and biocontrol mechanism.
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