Genome sequence and comparative analysis of Jiangella alba YIM 61503 isolated from a medicinal plant Maytenus austroyunnanensis.

A draft genome sequence of Jiangella alba YIM 61503 revealed a genome size of 7,664,864 bp arranged in 33 scaffolds. The genome was predicted to contain 7196 predicted genes, including 51 coding for RNA. Phylogenetic and comparative analyses of the draft genome of J. alba YIM 61503 with the available genomes of other Jiangella species suggested a proximal similarity between strains J. alba YIM 61503 and J. muralis DSM 45357, while indicating a high divergence between J. gansuensis YIM 002 and other Jiangella species. The genome of J. alba YIM 61503 also revealed genes involved in indole-3-acetic acid biosynthesis and an alkylresorcinols gene cluster. Further, detection of phosphotransferase genes in the genome of all Jiangella species indicated that they can uptake and phosphorylate sugars. The presences of TreX-Z, TreS and OtsA-OtsB genes in some of the Jiangella strains also indicated a possible mechanism for their tolerance of high salinity. Besides providing new insights into its genetic features, our results suggested that J. alba YIM 61503 could be a potential strain for further genome mining studies. The release of this genome may, therefore, provide a better prospect for understanding "evolutionary taxonomy" about this genus in future.