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.
引用
收藏
页码:2321 / 2329
页数:9
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