He Yong-Shu, Zhang Wen, Yang Zhao-Qing
Department of Biology, Kunming Medical College, Kunming 650031, China.
Yi Chuan. 2009 Aug;31(8):771-8. doi: 10.3724/sp.j.1005.2009.00771.
Genomic structural variation is generally defined as deletions, insertions, duplications, inversions, translocations or copy number variation (CNV) in large DNA segments (>1 kb). The structural variation in an individual genome includes thousands of discrete regions, spans millions of base pairs, and encompasses numerous entire genes and their regulatory regions. This results in missing or change of gene functions, and subsequently leads to phenotypic changes, disease susceptibilities or induction of diseases. Research on genomic structural variation is useful in analyzing the integrated genotype with genomic variation and understanding the potential medical effects and the entire function of the organism. Here, we reviewed the latest research progresses of the types of human genomic structural variants and the methods for disclosing these variants, as well as the impact of the variants on individual phenotype, disease, and evolution.
基因组结构变异通常被定义为大的DNA片段(>1 kb)中的缺失、插入、重复、倒位、易位或拷贝数变异(CNV)。个体基因组中的结构变异包括数千个离散区域,跨越数百万个碱基对,涵盖众多完整基因及其调控区域。这会导致基因功能的缺失或改变,进而导致表型变化、疾病易感性或疾病的诱发。基因组结构变异的研究有助于分析基因组变异的综合基因型,并了解其潜在的医学影响和生物体的整体功能。在此,我们综述了人类基因组结构变异类型、揭示这些变异的方法以及变异对个体表型、疾病和进化影响的最新研究进展。