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科学家绘制出不同人类组织中的遗传调控效应图谱
作者:小柯机器人 发布时间:2020/9/12 22:39:58

国际GTEx团队绘制出不同人类组织中的遗传调控效应图谱。相关论文于2020年9月11日发表于国际学术期刊《科学》。

研究人员表示,基因型组织表达(GTEx)项目的建立表征了人类组织上转录组的遗传效应,并将这些调控机制与特质和疾病关联起来。
 
研究人员介绍了版本8数据的分析,并检查了来自838个死后捐赠者49个组织的15,201个RNA测序样品。研究人员全面地表征了顺式和反式基因表达和剪接的遗传关联,显示出几乎所有基因都存在调节关联,并描述了潜在的分子机制及其对等位基因异质性和复杂性状的多效性的贡献。
 
利用组织的多样性,研究人员提供了对遗传效应的组织特异性见解,并表明细胞类型组成是了解人类组织中基因调控机制的关键因素。
 
附:英文原文

Title: The GTEx Consortium atlas of genetic regulatory effects across human tissues

Author: The GTEx Consortium

Issue&Volume: 2020/09/11

Abstract: The Genotype-Tissue Expression (GTEx) project was established to characterize genetic effects on the transcriptome across human tissues and to link these regulatory mechanisms to trait and disease associations. Here, we present analyses of the version 8 data, examining 15,201 RNA-sequencing samples from 49 tissues of 838 postmortem donors. We comprehensively characterize genetic associations for gene expression and splicing in cis and trans, showing that regulatory associations are found for almost all genes, and describe the underlying molecular mechanisms and their contribution to allelic heterogeneity and pleiotropy of complex traits. Leveraging the large diversity of tissues, we provide insights into the tissue specificity of genetic effects and show that cell type composition is a key factor in understanding gene regulatory mechanisms in human tissues.

DOI: 10.1126/science.aaz1776

Source: https://science.sciencemag.org/content/369/6509/1318

 

期刊信息
Science:《科学》,创刊于1880年。隶属于美国科学促进会,最新IF:41.037