Chromosomal Microarray Analysis for Constitutional Cytogenetics

Chromosomal microarray analysis

Identify anomalies associated with genetic constitutional disorders

scientists in lab with pipettes

SNP Arrays for Constitutional Cytogenetics Research

The identification of structural chromosomal aberrations can provide insight into causative relationships with complex phenotypes—including intellectual disability, developmental delay, and congenital anomalies. Chromosomal microarrays are powerful tools for detecting many types of structural variation. 

Chromosomal microarray analysis leverages the investigative power of single nucleotide polymorphism (SNP) genotypes to detect imbalances in copy number and allelic homozygosity, which are commonly associated with genetic constitutional disorders.

cytosnp microarray

Benefits of Chromosomal Microarrays

Chromosomal microarrays can detect variations that may be missed by other technologies. Traditional cytogenetic methods for the detection of dosage anomalies (copy number imbalances) are unable to assess allelic homozygosity and therefore miss potentially significant findings.

Unlike oligo arrays, which can only identify copy number changes, SNP chromosomal microarrays can identify copy neutral changes, such as uniparental disomy (UPD), and loss of heterozygosity.

Featured Constitutional Cytogenetics Research

UK Laboratory Uses SNP Array to Enhance Cytogenetics Analysis

Ease of use and high-quality data support a smooth transition from oligo arrays to chromosomal microarrays.

Cytogenetic Testing Illuminates Congenital Abnormalities and Cancer

Trilochan Sahoo, MD discusses how he uses chromosomal microarrays to scan the entire genome for common or rare alterations.

Cytogenetic Analysis: From Arrays to NGS

Dr Koehler and Dr Benet-Pages use chromosomal microarrays and targeted next-generation sequencing (NGS) to analyze chromosomal abnormalities.

Illumina chromosomal microarrays

Comprehensive Coverage for Constitutional Cytogenetics

Our chromosomal microarrays offer:

  • High resolution for assessing regions of the genome associated with genetic disease
  • Analytical sensitivity for detection of low-level mosaics
  • Reproducible data with challenging samples, including FFPE
  • Simple workflows

Featured Products

CytoSNP-850K BeadChip
CytoSNP-850K BeadChip

This consortium-built array provides comprehensive coverage of cytogenetically relevant genes for congenital disorders and cancer research.

Learn More
NextSeq 550 System
NextSeq 550 System

The NextSeq 550 System provides flexible power for whole-genome or targeted sequencing plus the ability to scan microarrays—the only such system with dual capabilities.

Learn More

Related Applications

Cytogenomics

Understanding chromosome aberrations is an integral part of genomic medicine, playing a role in research into both constitutional disorders and cancer.

Microarray Techniques

Explore a wide variety of microarray techniques and find solutions that allow researchers to analyze genetic variation efficiently on any scale.

From Cytogenetics to Cytogenomics

This introduction discusses the advantages of microarrays and NGS for constitutional cytogenetics.