Departamento de Farmacologia, Instituto de Ciências Biomédicas da Universidade de São Paulo, Avenida Lineu Prestes, 1524 CEP 05508-900, São Paulo, SP, Brazil.
Genome. 2013 Dec;56(12):705-16. doi: 10.1139/gen-2013-0125.
Genome-wide association studies have failed to establish common variant risk for the majority of common human diseases. The underlying reasons for this failure are explained by recent studies of resequencing and comparison of over 1200 human genomes and 10 000 exomes, together with the delineation of DNA methylation patterns (epigenome) and full characterization of coding and noncoding RNAs (transcriptome) being transcribed. These studies have provided the most comprehensive catalogues of functional elements and genetic variants that are now available for global integrative analysis and experimental validation in prospective cohort studies. With these datasets, researchers will have unparalleled opportunities for the alignment, mining, and testing of hypotheses for the roles of specific genetic variants, including copy number variations, single nucleotide polymorphisms, and indels as the cause of specific phenotypes and diseases. Through the use of next-generation sequencing technologies for genotyping and standardized ontological annotation to systematically analyze the effects of genomic variation on humans and model organism phenotypes, we will be able to find candidate genes and new clues for disease's etiology and treatment. This article describes essential concepts in genetics and genomic technologies as well as the emerging computational framework to comprehensively search websites and platforms available for the analysis and interpretation of genomic data.
全基因组关联研究未能确定大多数常见人类疾病的常见变异风险。最近对超过 1200 个人类基因组和 10000 个外显子进行重测序和比较的研究,以及 DNA 甲基化模式(表观基因组)的描绘和编码及非编码 RNA(转录组)的全面特征分析,解释了这种失败的根本原因。这些研究提供了功能元件和遗传变异的最全面目录,现在可用于前瞻性队列研究中的全球综合分析和实验验证。有了这些数据集,研究人员将有前所未有的机会对特定遗传变异(包括拷贝数变异、单核苷酸多态性和插入缺失)在特定表型和疾病中的作用进行假设的对齐、挖掘和测试。通过使用下一代测序技术进行基因分型和标准化本体论注释,以系统地分析基因组变异对人类和模式生物表型的影响,我们将能够找到候选基因和疾病病因学和治疗的新线索。本文介绍了遗传学和基因组技术的基本概念,以及新兴的计算框架,用于全面搜索可用于分析和解释基因组数据的网站和平台。