Figure 1

Dotter alignment of the two Tos17 genomic copies. Horizontally, the copy from chromosome 7 (active copy); vertically, the copy from chromosome 10 (inactive copy). The difference in transcriptional/transpositional activity is due to small mismatches, forming stop-codons and frameshifting, and to a larger deletion in the inactive copy (blue circle). The long terminal repeats (LTR) repeated sequences are circled in red.