Differentiation by molecular typing of Mycobacterium bovis strains causing tuberculosis in cattle and goats.
AUTOR(ES)
Gutiérrez, M
RESUMO
Forty Mycobacterium bovis isolates from cattle and goats were analyzed by using different repetitive genetic markers. The 23 M. bovis strains from goats were found to carry six to eight copies of the insertion sequence IS6110. In contrast, most of the bovine isolates contained only a single copy of this element. The standardized IS6110 fingerprinting by restriction fragment length polymorphism (RFLP), described for Mycobacterium tuberculosis strains, allowed the differentiation of caprine strains. Although this method was not useful for typing bovine isolates, the repetitive elements pTBN12 and DR proved to be suitable for this purpose. A procedure using PCR which amplifies IS6110 in the outward direction was found to be as sensitive as RFLP for typing M. bovis strains from goats. The use of PCR and RFLP methods based on the IS6110 polymorphism would be useful for epidemiological studies of caprine tuberculosis. The results are consistent with different strains of M. bovis being implicated in bovine and caprine tuberculosis.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=228613Documentos Relacionados
- Identification by spoligotyping of a caprine genotype in Mycobacterium bovis strains causing human tuberculosis.
- Spacer oligonucleotide typing of Mycobacterium bovis strains from cattle and other animals: a tool for studying epidemiology of tuberculosis.
- Specific Differentiation between Mycobacterium bovis BCG and Virulent Strains of the Mycobacterium tuberculosis Complex
- Differentiation of Known Strains of BCG from Isolates of Mycobacterium bovis and Mycobacterium tuberculosis by Using Mycobacteriophage 33D
- Differentiation of Mycobacterium bovis isolates from animals by DNA typing.
