Spectral Karyotyping (SKY) - WiCell  

Spectral Karyotyping (SKY)

SKY (24 color FISH) analysis of metaphase chromosome preparations of human or mouse cells. Assay performed by clinically certified cytogenetic technologists and reviewed by an ABMG-certified director, with results available in 10-15 days.

 
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What it detects:

  • Microscopic (>5-10 Mb) genomic abnormalities

    • Balanced and unbalanced translocations
    • Aneuploidies
 

What it doesn’t detect:

  • Submicroscopic abnormalities (<5Mb genomic abnormalities)
  • Inversions
  • Duplications/deletions
 

When to use:

  • As an adjunct to g-banded karyotyping

    • To define complex rearrangements
    • To identify marker chromosomes
  • When publication-quality spectral karyotypes are needed

Abnormal spectral karyotype of a four-way translocation.

Abnormal spectral karyotype
 of a four-way translocation.

Mouse Spectral 
Karyotype