Table 1 Transposon distribution around host genes with and without piRNA coverage
TE countsWindow size500 bp1000 bp2000 bp
Host genes no piRNA (15,821)Number156618712460
Average0.09900.11830.1555
SD0.37060.40510.4690
Host genes piRNA (327)Number6889129
Average0.20800.27220.3945
SD0.50110.56150.7008
t-testP-value1.12E-0041.30E-0062.37E-009
  • The difference was tested statistically using a two-tailed t-test. TE numbers (including full-length and fragmented copies) were counted for each CDS feature (AI < 0) in three different window sizes (500, 1000, and 2000 bp). TE density is significantly higher around selected host genes with small RNA profiles. SD, standard deviation.