Pseudomonas cichorii JBC1, a plant pathogen which infects wide range of host plants worldwide, causes several diseases such as midrib rot and bacterial speck on economically important vegetable crops.
More...Pseudomonas cichorii JBC1, a plant pathogen which infects wide range of host plants worldwide, causes several diseases such as midrib rot and bacterial speck on economically important vegetable crops. In spite of the importance of the pathogen, whole genome sequence was not reported till date. Therefore, in the present study, genome sequence of P. cichorii JBC1 was revealed for the first time and its different groups of genes were annotated. The genome of JBC1 is 5,986,012 bp in size and with average GC ratio of 58.1%. It encodes for 5,174 coding sequences (CDS) and among them, 4,218 CDS (81.52%) were with known function, while with 956 CDS (18.47%) were with unknown function. In addition, it encodes for 19 rRNA and 65 tRNA also. The genes related to virulence, transport mechanism, phytotoxic compound, secondary metabolite products were analyzed and the genome was compared with eight other Pseudomonas species, to understand species level diversity. In spite of high percentages of similarity, significant diversity was found among the different Pseudomonas species at genome level. Especially, comparison of pathogenicity island region indicated more divergence, which gave clue for difference in host specificity and degree of virulence. In addition, the presence of genes to antibiotic resistance and tolerance to heavy metal tolerance, and incorporation of prophage genome was also analyzed. The genome sequence of JBC1 will be a reference sequence for other P. cichorii strains, and useful resource for further needful research for development of pathogen control measures.
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