Characterization of mitochondrial DNA polymorphisms in the Han population in Liaoning Province, Northeast China

Characterization of mitochondrial DNA polymorphisms in the Han population in Liaoning Province, Northeast China
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辽宁省汉族人群线粒体DNA多态性特征

DOI:
10.1080/24701394.2016.1275597
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发表时间:
2018-02
影响因子:
--
通讯作者:
Bao-jie Wang
Bao-jie Wang
中科院分区:
生物学4区
文献类型:
--
作者:
Feng-Ling Xu;Jun Yao;Mei Ding;Zhang-sen Shi;Xue Wu;Jing-jing Zhang;Bao-jie Wang

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摘要本研究通过对辽宁汉族人群线粒体DNA(mtDNA)遗传变异的分析,探讨辽宁汉族人群母系遗传结构。在辽宁省共采集了317份无关个体的血液样本进行分析。使用两种不同的方法分析mtDNA样本:测序的高变序列I和II(HVSI和HVSII),和聚合酶链反应-限制性片段长度多态性(PCR-RFLP)分析的编码区。结果表明,该群体具有较高的基因多样性(0.9997 ± 0.0003)、多态性信息含量(0.99668)和随机匹配概率(0.00332)。这些样本分为305个单倍型,其中9个共享单倍型。最常见的单倍型群为D4(12.93%)。主成分分析图、系统发育树图和遗传距离矩阵均显示辽宁汉族群体与藏族群体的遗传距离较远,而与苗族群体的遗传距离较近。
Abstract This study characterized the genetic variations of mitochondrial DNA (mtDNA) to elucidate the maternal genetic structure of Liaoning Han Chinese. A total of 317 blood samples of unrelated individuals were collected for analysis in Liaoning Province. The mtDNA samples were analyzed using two distinct methods: sequencing of the hypervariable sequences I and II (HVSI and HVSII), and polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis of the coding region. The results indicated a high gene diversity value (0.9997 ± 0.0003), a high polymorphism information content (0.99668) and a random match probability (0.00332). These samples were classified into 305 haplotypes, with 9 shared haplotypes. The most common haplogroup was D4 (12.93%). The principal component analysis map, the phylogenetic tree map, and the genetic distance matrix all indicated that the genetic distance of the Liaoning Han population from the Tibetan group was distant, whereas that from the Miao group was relatively close.
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