Abstract
Bacillus thuringiensis is the most widely used biological pesticide in the world. It belongs to the Bacillus cereus sensu lato group, which contains six species. Among these six species, B. thuringiensis, B. anthracis, and B. cereus have a low genetic diversity. B. thuringiensis strain HD521 shows maroon colony which is different from most of the B. thuringiensis strains. Strain HD521 also displays an ability to inhibit plant sheath blight disease pathogen (Rhizoctonia solani AG1 IB) growth and can form bipyramidal parasporal crystals consisting of three cry7 genes. These crystals have an insecticidal activity against Henosepilachna vigintioctomaculata larva (Coleoptera). Here we report the complete genome sequence of strain HD521, which has one chromosome and six circular plasmids.
Highlights
The B. cereus sensu lato group has low genetic diversity when they are measured by multilocus sequence typing and 16S sequencing and some gene contents [1,2,3]
Ash showed that 16S rRNA nucleotide sequences among B. cereus, B. thuringiensis and B. anthracis were high similar and exhibit more than 99 % similarity [19], and they are considered as a single species [4, 20, 21]
B. thuringiensis, B. cereus, and B. anthracis have a close relationship as indicated by genomes and they are considered the same species [4]
Summary
The B. cereus sensu lato group has low genetic diversity when they are measured by multilocus sequence typing and 16S sequencing and some gene contents [1,2,3]. The complete antibiotic biosynthesis gene cluster was first identified in the strain B. cereus UW85 [10]. The complete genome sequence of B. thuringiensis strain HD521 is reported and an annotation and description of its genome features is provided.
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