Another Round of "Clue" to Uncover the Mystery of Complex Traits.

Another Round of "Clue" to Uncover the Mystery of Complex Traits.
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DOI:
10.3390/genes9020061
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发表时间:
2018-01-25
期刊:
影响因子:
3.5
通讯作者:
Ritchie MD
Ritchie MD
中科院分区:
生物学3区
文献类型:
--
作者:
Verma SS;Ritchie MD

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大量的遗传关联分析已经确定了几个遗传风险位点。技术和统计的进步现在不仅可以识别常见的遗传变异,还可以识别低频变异、结构变异和环境因素,以及影响群体中复杂性状表型变异的多组学变异,因此被称为复杂性状架构。遗传力的概念,或由于遗传而导致的表型变异的比例,已经被研究了几十年,但其应用主要是解决全基因组关联研究(GWAS)中的狭义遗传力(或加性遗传成分)。在这篇评论中,我们反思了与模式生物相比理解人类性状遗传性的复杂性的观点,强调了 GWAS 之外的另一轮线索和替代方法,全面研究这些线索以帮助阐明复杂性状的遗传结构。
A plethora of genetic association analyses have identified several genetic risk loci. Technological and statistical advancements have now led to the identification of not only common genetic variants, but also low-frequency variants, structural variants, and environmental factors, as well as multi-omics variations that affect the phenotypic variance of complex traits in a population, thus referred to as complex trait architecture. The concept of heritability, or the proportion of phenotypic variance due to genetic inheritance, has been studied for several decades, but its application is mainly in addressing the narrow sense heritability (or additive genetic component) from Genome-Wide Association Studies (GWAS). In this commentary, we reflect on our perspective on the complexity of understanding heritability for human traits in comparison to model organisms, highlighting another round of clues beyond GWAS and an alternative approach, investigating these clues comprehensively to help in elucidating the genetic architecture of complex traits.
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