Figure 5From: Sequence signature analysis of chromosome identity in three Drosophila speciesThe combined PCA of four Dm data sets using hexamers. The four data sets used are: the original sequence (â–¡), the Tandem Repeats Finder masked sequence (â–½), the RepeatMasker masked sequence (*) and the extracted exon sequences (â—‡). (A) Score plot (R2 = 0.93) of the non-normalised analysis. (B) Score plot (R2 = 0.82) of the normalised analysis.Back to article page