Genotype to phenotype-discovery and characterization of novel genomic disorders in a "genotype-first" era

被引:35
作者
Mefford, Heather C. [1 ]
机构
[1] Univ Washington, Div Med Genet, Dept Pediat, Seattle, WA 98195 USA
关键词
Genomic disorder; array comparative genomic hybridization; phenotypic diversity; microdeletion syndrome; CONGENITAL HEART-DISEASE; COPY-NUMBER VARIATION; IDIOPATHIC GENERALIZED EPILEPSY; 17Q21.31 MICRODELETION SYNDROME; 22Q11.2 DELETION SYNDROME; CONTIGUOUS GENE DELETION; WILLIAMS-BEUREN-SYNDROME; MENTAL-RETARDATION; ARRAY-CGH; CHROMOSOMAL REARRANGEMENTS;
D O I
10.1097/GIM.0b013e3181c175d2
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Recent advances in technology for detecting copy number changes have enabled genome-wide detection of submicroscopic deletions and duplications. As these technologies are applied to large cohorts of patients with diverse phenotypes, novel genomic disorders are defined by a common genotype (deletion or duplication) rather than a common phenotype. The discovery of new genomic disorders using this "genotype-first" approach has increased dramatically, and several recently described recurrent rearrangements are associated with a surprisingly wide range of phenotypes. This review will discuss the importance of genomic architecture for generating recurrent rearrangements, implications of the genotype-first approach for medical genetics, and features of several new genomic disorders with highly variable phenotypes. Genet Med 2009:11(12):836-842.
引用
收藏
页码:836 / 842
页数:7
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