Figure 1
From: Large-scale genomic 2D visualization reveals extensive CG-AT skew correlation in bird genomes
BSDT example of one chromosome of chicken and pufferfish. A is the BSDT of chicken chromosome 5. B is the BSDT of pufferfish chromosome 3. The lower left triangle of each figure represents the AT skew, and the upper right triangle represents the CG skew. The clear correlation of AT and CG skews in chicken chromosome 5 is evident as symmetry across the diagonal. Most chicken chromosomes show such high symmetry in BSDT and all high symmetry BSDTs among eukaryotes belong to chicken.