共 11 条
Hepatitis B virus genotypes in Mongols and Australian aborigines
被引:28
作者:
Alestig, E
[1
]
Hannoun, C
[1
]
Horal, P
[1
]
Lindh, M
[1
]
机构:
[1] Gothenburg Univ, Dept Clin Virol, S-41346 Gothenburg, Sweden
关键词:
D O I:
10.1007/s007050170005
中图分类号:
Q93 [微生物学];
学科分类号:
071005 ;
100705 ;
摘要:
Hepatitis B virus (HBV) is spread worldwide. Seven genotypes, A-G, have been described, differing by more than 8% of the genome. In eastern Asia and Oceania genotypes B and C are predominant. However, little is known about genotypes in Mongolia and Australian aborigines. We analysed the preS and S regions of HBV from 9 Mongols and 5 Australian Aborigines. All Mongolian strains were of genotype D and were most similar to Central Asian sequences. All the Australian strains were genetically of serotype ayw3, and could not be reliably classified by the S region analysis, but placed on a separate branch. By preS analysis, they were however clearly of genotype C. The 6-7% nucleotide difference from published Asian genotype C sequences suggests that they diverged from Asian genotype C branch more than 1000 years ago.
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页码:2321 / 2329
页数:9
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