TY - JOUR KW - Bacterial Proteins KW - Bacterial Typing Techniques KW - Genes, Bacterial KW - Genetic Variation KW - Genome, Bacterial KW - genotype KW - Geography KW - Humans KW - leprosy KW - Mycobacterium leprae KW - polymerase chain reaction KW - Sequence Analysis, DNA KW - Sigma Factor AU - Matsuoka M AU - Maeda S AU - Kai M AU - Nakata N AU - Chae G T AU - Gillis T P AU - Kobayashi K AU - Izumi S AU - Kashiwabara Y AB -
The genetic diversity and related global distribution of 51 Mycobacterium leprae isolates were studied. Isolates were obtained from leprosy patients from 12 geographically distinct regions of the world and two were obtained from nonhuman sources. Polymerase chain reaction (PCR) followed by DNA sequencing was performed targeting the rpoT gene of M. leprae. Isolates were classified into two groups based on the number of tandem repeats composed of 6 base pairs in the rpoT gene. Isolates from Japan (except Okinawa) and Korea belonged to one group, while those from Southeast Asian countries, Brazil, Haiti and Okinawa in Japan belonged to a second genotype. M. leprae obtained from two nonhuman sources (an armadillo and a mangabey monkey) revealed the latter genotype. These results demonstrate the genetic diversity of M. leprae and the related genotype-specific distribution in the world.
BT - International journal of leprosy and other mycobacterial diseases : official organ of the International Leprosy Association C1 - http://www.ncbi.nlm.nih.gov/pubmed/11036491?dopt=Abstract DA - 2000 Jun IS - 2 J2 - Int. J. Lepr. Other Mycobact. Dis. LA - eng N2 -The genetic diversity and related global distribution of 51 Mycobacterium leprae isolates were studied. Isolates were obtained from leprosy patients from 12 geographically distinct regions of the world and two were obtained from nonhuman sources. Polymerase chain reaction (PCR) followed by DNA sequencing was performed targeting the rpoT gene of M. leprae. Isolates were classified into two groups based on the number of tandem repeats composed of 6 base pairs in the rpoT gene. Isolates from Japan (except Okinawa) and Korea belonged to one group, while those from Southeast Asian countries, Brazil, Haiti and Okinawa in Japan belonged to a second genotype. M. leprae obtained from two nonhuman sources (an armadillo and a mangabey monkey) revealed the latter genotype. These results demonstrate the genetic diversity of M. leprae and the related genotype-specific distribution in the world.
PY - 2000 SP - 121 EP - 8 T2 - International journal of leprosy and other mycobacterial diseases : official organ of the International Leprosy Association TI - Mycobacterium leprae typing by genomic diversity and global distribution of genotypes. UR - http://ila.ilsl.br/pdfs/v68n2a01.pdf VL - 68 SN - 0148-916X ER -