Molecular characterization of the measles virus genotypes in JiLin Province, China.

Molecular characterization of the measles virus genotypes in JiLin Province, China.
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中国吉林省麻疹病毒基因型的分子特征

DOI:
10.1371/journal.pone.0046011
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Li F
Li F
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Wei C;Shi J;Liu B;Shi Y;Zheng J;Xu G;Ma J;Wang G;Li F

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麻疹仍然是严重的全球健康威胁,每年报告近 3000 万新病例。尽管许多研究在流行病学和系统发育水平上分析了麻疹病毒(MV),但尚未有研究整合这两类数据。为此,我们在中国吉林省分离到了16株野生型MV毒株。 MV 基因型 H1 是最流行的菌株。对这些菌株的核蛋白(N)基因进行测序后,利用GenBank中带有流行病学信息的450个MV菌株,通过贝叶斯马尔可夫链蒙特卡罗方法构建了最大进化枝可信度树。 MV N基因进化率为1.127E-3。对基因型 A/B/C/G/H 的最近共同祖先时间 (TMRCA) 的分析表明,基因型 D 和 B 的 TMRCA 最大和最小(分别为 45.86 和 26.63)。 MV N 基因遗传多样性的最高水平发生在 2000 年左右。在这项研究中,我们发现了在中国吉林省流行的 MV 基因型,并估计了 MV 六种不同基因型的流行病学和系统发育关系。
Measles remains a severe global health threat, and nearly 30 million new cases are reported annually. Although many studies have analyzed measles viruses (MV) at the epidemiologic and phylogenetic levels, no study has yet to integrate these two types of data. To this end, we isolated 16 wild-type MV strains China's Jilin province. The MV genotype H1 was the most prevalent strain. After sequencing the nucleoprotein (N) genes of these strains, a maximum clade credibility tree was constructed by the Bayesian Markov Chain Monte Carlo method using 450 MV strains from GenBank with epidemiological information. The MV N gene evolution rate was 1.127E-3. Analysis of the time of the most recent common ancestor (TMRCA) for genotypes A/B/C/G/H revealed that genotypes D and B had the largest and smallest TMRCA (45.86 and 26.63, respectively). The highest level of genetic diversity for the MV N gene occurred around the year 2000. Here in this study, we uncovered the MV genotypes circulating in China's Jilin Province and estimated the epidemiologic and phylogenetic relationship for the six different genotypes of MV.
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