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Updated: May 13, 2026
09:16
Array Comparative Genomic Hybridization (Array CGH) for Detection of Genomic Copy Number Variants
Published on: February 21, 2015
Copy number variation in the autism genome
1The Hospital for Sick Children, Program in Genetics and Genome Biology, 101 College Street, MaRS - East Tower, Rm 14-701, Toronto, ON M5G 1L7, Canada +1 416 813 7654 ext 1358 ; +1 416 813 8319 ; lfeuk@sickkids.ca.
Expert Opinion on Medical Diagnostics
|March 19, 2013
Summary
Autism spectrum disorders (ASDs) are highly heritable neurodevelopmental conditions. Recent advances in genomic screening reveal the significant role of structural genetic variations, particularly copy number variations, in ASD etiology.
Area of Science:
- Genetics
- Neurodevelopmental Disorders
- Genomics
Background:
- Autism spectrum disorders (ASDs) are recognized as highly heritable neurodevelopmental conditions.
- Despite extensive research, the precise genetic underpinnings of ASDs remain incompletely understood.
- Chromosomal rearrangements have been implicated as significant contributors to ASD etiology.
Purpose of the Study:
- To review recent advancements in the genetic research of autism spectrum disorders.
- To highlight the critical role of structural genetic variations in ASD.
- To discuss the impact of high-resolution genomic screening techniques.
Main Methods:
- This work is a review of existing literature on genetic variation studies in ASD.
- The focus is specifically on structural genetic variations.
- The review incorporates findings from recent high-resolution genomic screening.
Main Results:
- High-resolution genomic screening has led to crucial discoveries in ASD genetics over the past year.
- Copy number variation (CNV) screening is a vital approach in autism research.
- Next-generation sequencing (NGS) technologies are accelerating the pace of genetic discoveries in ASD.
Conclusions:
- Structural genetic variations, especially CNVs, are key factors in the etiology of ASDs.
- The continued application of advanced genomic technologies like NGS will significantly advance our understanding of ASD genetics.
- Future research directions should prioritize comprehensive genomic analyses to unravel the complex genetic landscape of autism spectrum disorders.
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Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
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GWAS does not require the identification of the target gene involved in...
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Genes exist in different versions called alleles, which...
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