Figure 1
![Figure 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1471-2105-15-71/MediaObjects/12859_2013_Article_6824_Fig1_HTML.jpg)
Schematic presentation of insertion of Tos17 and TSD and principal of TIF algorithm. A. In the process of Tos17 insertion, 5 bp sequence (shown in red letters) flanking Tos17 is duplicated. B. Short reads of NGS containing end of Tos17 sequence (shown in blue letters) were searched and then made a group by TSD.