Subgenotype diversity of hepatitis B virus American genotype F in Amerindians from Venezuela and the general population of Colombia.
J Med Virol
; 80(1): 20-6, 2008 Jan.
Article
em En
| MEDLINE
| ID: mdl-18041024
The objective of this study was the evaluation of the genetic diversity found in HBV circulating among Venezuelan Amerindians and the general population in Colombia. Phylogenetic analysis of the S region in 194 isolates showed that genotype F is highly predominant in Colombia and Venezuela. This might be related to the genetic background of the population. F3 is the main subgenotype which circulates in both countries. Phylogenetic analysis of 61 complete genome sequences of HBV American genotypes confirms the presence of two genotypes F and H, and 4 F subgenotypes. In Venezuela, subgenotypes F1, F2, and F3 circulate in East and West Amerindians, while only F3 was found among South Amerindians. Japreira community derived from Yucpa Amerindians around 150 years ago. However, several Japreira HBV sequences were forming a clade that can be classified as subgenotype 2b, differing from Yucpa sequences that belong mainly to subgenotype F3. The apparent absence of correlation between the phylogenetic groupings of HBV isolates with the ethnical origin in aboriginal populations might be suggesting a recent origin of HBV American subgenotypes, or a genetic drift effect.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Variação Genética
/
Vírus da Hepatite B
/
Genoma Viral
/
Hepatite B
Limite:
Humans
País/Região como assunto:
America do sul
/
Colombia
/
Venezuela
Idioma:
En
Revista:
J Med Virol
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Venezuela
País de publicação:
Estados Unidos