Genome organization is not conserved between Bacillus cereus and Bacillus subtilis

Autor: Toril Lindbäck, Anne-Brit Kolstø, Ida K. Hegna, Ole Andreas Økstad, Anne-Lise Rishovd
Rok vydání: 1999
Předmět:
Zdroj: Microbiology. 145:621-631
ISSN: 1465-2080
1350-0872
DOI: 10.1099/13500872-145-3-621
Popis: The opportunistic pathogen Bacillus cereus is the genetically stable member of a group of closely related bacteria including the insect pathogen Bacillus thuringiensis and the mammalian pathogen Bacillus anthracis. Physical maps of B. cereus and B. thuringiensis strains show considerable variations in discrete parts of the chromosome, suggesting that certain genome regions are more prone to rearrangements. B. cereus belongs to the same subgroup of Bacillus species as Bacillus subtilis, by both phenotypic and rRNA sequence classification. The analysis of 80 kb of genome sequence sampled from different regions of the B. cereus ATCC 10987 chromosome is reported. Analysis of the sequence and comparison of the localization of the putative genes with that of B. subtilis orthologues show the following: (1) gene organization is not conserved between B. cereus and B. subtilis; (2) several putative genes are more closely related to genes from other bacteria and archaea than to B. subtilis, or may be absent in B. subtilis 168; (3) B. cereus contains a 155 bp repetitive sequence that is not present in B. subtilis. By hybridization, this repeat is present in all B. cereus and B. thuringiensis strains so far investigated.
Databáze: OpenAIRE