Figure 5

Strength of the compositional bias signal of TgTASL sequences over different lengths of genomic fragments. The curve in black shows the bias ratio of TgTASL-containing genomic fragments relative to the compositional bias of all genomic fragments at a given window length. For example, at 1Kbp fragments, TgTASL containing fragments show a relative bias of 1, ie. there is no TgTASL specific bias, while there is a peak at 50Kbp, with a relative bias of ∼4.5 (ie, TgTASL have on average ∼4.5 times more trinucleotide bias compared to all the genomic fragments). The curve in red shows the divergence in trinucleotide composition of TgTAS-like containing fragments. At 40Kbp the divergence presents a minimum, ie the TgTASL fragments are highly compact.