Mitochondrial DNA diversity in the African American population.

Mitochondrial DNA diversity in the African American population.
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DOI:
10.3109/19401736.2013.840591
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发表时间:
2015-06
期刊:
影响因子:
--
通讯作者:
Aissani B
Aissani B
中科院分区:
生物4区
文献类型:
--
作者:
Johnson DC;Shrestha S;Wiener HW;Makowsky R;Kurundkar A;Wilson CM;Aissani B

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线粒体DNA(mtDNA)的遗传多态性沿着定义了称为mtDNA单倍群的群体特异性特征。mtDNA单倍群分布的估计可能容易出错,特别是如果研究样本不是从多中心队列中抽取的话。在这里,我们报告的mtDNA多样性在一个样本的非裔美国人(n = 343)参加了一个多中心队列。D环控制区的高变区I和II的测序显示,最常见的线粒体变体是73G、146C、150T、152C、189G、16278T和16311C。与已发表的数据一致,我们观察到17个常见的mtDNA单倍型群:L0,L1,L1b,L1c,L2,L2a,L2b,L2c,L2e,L3,L3b,L3d,L3e,L3f,L3h,L3x和L4。最常见的单倍群是L2a(19.8%),其次是L1b(10.2%)。总的来说,我们研究中观察到的mtDNA单倍型群分布与非洲裔美国人和非洲人群中发表的结果相似。
Genetic polymorphism along mitochondrial DNA (mtDNA) defines population-specific signatures called mtDNA haplogroups. Estimation of mtDNA haplogroup distribution may be prone to errors, notably if the study sample is not drawn from a multicenter cohort. Here, we report on mtDNA diversity in a sample of African American individuals (n = 343) enrolled in a multicenter cohort. Sequencing of the hypervariable regions I and II of the D-loop control region showed that the most common mitochondrial variants are 73G, 146C, 150T, 152C, 189G, 16278T, and 16311C. In agreement with the published data, we observed 17 common mtDNA haplogroups: L0, L1, L1b, L1c, L2, L2a, L2b, L2c, L2e, L3, L3b, L3d, L3e, L3f, L3h, L3x, and L4. The most commonly observed haplogroup is L2a (19.8%), followed by L1b (10.2%). Overall, the observed mtDNA haplogroup distribution in our study is similar to those published for the African American and the African populations.
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