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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 103, No. 5, 2008, pp. 497-500
Bioline Code: oc08088
Full paper language: English
Document type: Short Communication
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 103, No. 5, 2008, pp. 497-500

 en Genetic relationships between sympatric populations of Bacillus cereus check for this species in other resources and Bacillus thuringiensis check for this species in other resources , as revealed by rep-PCR genomic fingerprinting
Peruca, Ana Paula S; Vilas-Bôas, Gislayne T & Arantes, OMN

Abstract

The bacterial strain Bacillus cereus check for this species in other resources is closely related to Bacillus thuringiensis check for this species in other resources , although any genetic relationship between the two strains is still in debate. Using rep-PCR genomic fingerprinting, we established the genetic relationships between Brazilian sympatric populations of B. cereus and B. thuringiensis simultaneously collected from two geographically separate sites. We observed the formation of both B. thuringiensis and B. cereus clusters, as well as strains of B. cereus that are more closely related to B. thuringiensis than to other B. cereus strains. In addition, lower genetic variability was observed among B. thuringiensis clusters compared to B. cereus clusters, indicating that either the two species should be categorized as separate or that B. thuringiensis may represent a clone from a B. cereus background.

Keywords
Bacillus cereus - Bacillus thuringiensis - genetic relationship

 
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