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arXiv 1805.06950q-bio.GN
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对从塞尔维亚个体获得的基因组进行测序和解释

The sequencing and interpretation of the genome obtained from a Serbian individual

Wazim Mohammed Ismail, Kymberleigh A. Pagel, Vikas Pejaver, Simo V. Zhang, Sofia Casasa, Matthew Mort, David N. Cooper, Matthew W. Hahn, Predrag Radivojac

摘要:

最近的遗传学研究和全基因组测序计划大大提高了我们对人类变异和临床可操作遗传信息的理解。然而,较小的种族人口在个体和大规模测序工作中仍然代表性不足,因此有机会发现具有生物医学和人口统计学意义的新变体。这份报告描述了从一个塞尔维亚人身上获得的基因组的测序和分析,将数万个以前未知的变异引入到目前可用的库中。法医学分析将该个体置于中欧和东欧人群的附近;即,最接近克罗地亚人,保加利亚人和匈牙利人,就其他欧洲人而言,最远离德系犹太人,西班牙人,西西里人和波罗的海人。我们的分析证实了尼安德特人和祖先泛欧洲人群之间的基因流,塞尔维亚人的基因组与其他欧洲群体的基因组相似。最后,为了评估测序基因组中潜在致病/临床相关变异的负担,我们利用手动策划的基因型-表型关联数据库和变异效应预测因子。我们发现了几种以前与先证者中不明显的严重早发性疾病相关的变异,以及在未来几十年内可能与先证者临床相关的变异。许多私人和低频变异的存在,以及在该基因组中观察到和预测的致病突变,给基因组解释带来了一些全球性挑战,特别是在研究不足的种族群体的背景下。

英文摘要:

Recent genetic studies and whole-genome sequencing projects have greatly improved our understanding of human variation and clinically actionable genetic information. Smaller ethnic populations, however, remain underrepresented in both individual and large-scale sequencing efforts and hence present an opportunity to discover new variants of biomedical and demographic significance. This report describes the sequencing and analysis of a genome obtained from an individual of Serbian origin, introducing tens of thousands of previously unknown variants to the currently available pool. Ancestry analysis places this individual in close proximity of the Central and Eastern European populations; i.e., closest to Croatian, Bulgarian and Hungarian individuals and, in terms of other Europeans, furthest from Ashkenazi Jewish, Spanish, Sicilian, and Baltic individuals. Our analysis confirmed gene flow between Neanderthal and ancestral pan-European populations, with similar contributions to the Serbian genome as those observed in other European groups. Finally, to assess the burden of potentially disease-causing/clinically relevant variation in the sequenced genome, we utilized manually curated genotype-phenotype association databases and variant-effect predictors. We identified several variants that have previously been associated with severe early-onset disease that is not evident in the proband, as well as variants that could yet prove to be clinically relevant to the proband over the next decades. The presence of numerous private and low-frequency variants along with the observed and predicted disease-causing mutations in this genome exemplify some of the global challenges of genome interpretation, especially in the context of understudied ethnic groups.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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