Minicircle classes heterogeneity within the TcIII and TcIV discrete typing units of Trypanosoma cruzi.
Infect Genet Evol
; 51: 104-107, 2017 07.
Article
em En
| MEDLINE
| ID: mdl-28323069
The taxon Trypanosoma cruzi, causative agent of Chagas disease, is composed of several discrete typing units (DTUs) named TcI-TcVI, and Tcbat. The history of the taxon T. cruzi is known, even though several controversial aspects remain as the relationships between TcIII and TcIV. We analyzed cloned T. cruzi stocks pertaining to the seven DTUs by filter hybridization tests of PCR amplicons from minicircle variable regions and kinetoplast DNA probes. Minicircle DNA blots from the cloned stocks and filter hybridization with one TcI, one TcII, one TcV, one TcVI, three TcIII, one TcIV from North America and one TcIV kinetoplast DNA probes from South America revealed minicircle variable region cross-reaction in some T. cruzi DTUs probed. TcIII was heterogeneous in minicircle class composition, even though two TcIII probes revealed that a small fraction of minicircles cross-hybridized with the minicircles from the TcIII, TcV and TcVI DTUs. The minicircles of TcIV from North America cross-reacted only with TcIV from North America but not with TcIV stocks from Brazil and Bolivia. The results on minicircle cross-hybridizations are discussed in the context of RNA editing, mitochondrial function in T. cruzi DTUs.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Trypanosoma cruzi
/
Variação Genética
/
RNA de Protozoário
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DNA de Cinetoplasto
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Genótipo
Limite:
Animals
/
Humans
País/Região como assunto:
America do norte
/
America do sul
Idioma:
En
Revista:
Infect Genet Evol
Assunto da revista:
BIOLOGIA
/
DOENCAS TRANSMISSIVEIS
/
GENETICA
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
Chile
País de publicação:
Holanda