dSKY plot show the somatic copy number alterations (sCNAs) in cancer
cell-line. For this breast cancer cell-line HCC1143, the dSKY clearly
showed the loss of chr8p and gain of chr8q, a pattern recurrently occurs
to breast cancer genome.
While the dSKY was originally
generated to compare with the SKY plot at
(http://old-www.path.cam.ac.uk/~pawefish/BreastCellLineDescriptions/HCC1143.html), dSKY shows in greater details about Loss of heterozygosity and double
deletions, corresponding regions marked in red and green shading on the
cytobands respectively.