Genome-wide identification and evolution of SINE in the silkworm (Bombyx mori) genome

Short interspersed nuclear elements (SINEs), one category of the transposons, are widely distributed in eukaryotes, especially higher eukaryotes such as mouse and human being. This, they should play a significant role during their host genomes evolution. SINEs occupied 40%-45% of the genomes in mouse and human genomes. This study we do some research as follows:(1) pioneered a package of programs to identify the SINE; (2)identified the SINEs in Bombyx mori, Manduca sexta, Danaus plexippus and Heliconius melpomene at genome level; (3) Through counting the distribution range of SINEs in the genome, we found that SINEs prefer to reside in the non-functional regions; (4) most of SINEs inserted into genome in the recent 3 mya, BM1 and BmSE have experienced a burst amplification.