Table 1  Percentage of introns with classified into repetitive families.
Class/family  1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16
DNA:Chapaev-Chap3  –  –  –  –  –  –  –  –  –  –  –  –  –  13%  –  –
DNA:DNA  –  –  –  –  –  –  –  –  –  –  –  –  –  –  –  35%
DNA:En-Spm  –  –  –  –  –  –  –  –  –  –  –  –  –  –  –  14%
DNA:Harbinger  –  –  –  –  –  –  –  –  –  –  –  –  –  –  21%  11%
DNA:MER1_type  –  21%  19%  16%  –  21%  –  12%  11%  12%  –  –  –  –  –  –
DNA:T2  –  –  –  –  –  –  –  –  –  –  –  –  –  –  16%  –
DNA:TcMar-Tc1  –  –  –  –  –  –  –  –  –  –  –  –  –  –  –  15%
DNA:TcMar-Tigger  10%  –  –  –  –  –  –  –  –  –  –  –  –  –  –  –
DNA:hAT  –  –  –  –  –  –  –  –  –  –  –  –  –  –  –  23%
DNA:hAT-Ac  –  –  –  –  –  –  –  –  –  –  –  –  –  –  –  11%
DNA:hAT-Charlie  21%  –  –  –  19%  –  20%  –  –  –  17%  –  –  –  12%  20%
LINE:CR1  –  –  –  –  –  –  –  –  –  –  23%  –  19%  –  –  –
LINE:L1  27%  27%  27%  27%  27%  27%  26%  23%  20%  20%  30%  –  –  –  –  –
LINE:L2  27%  27%  25%  21%  25%  29%  26%  –  –  13%  36%  54%  –  –  –  –
LINE:Penelope  –  –  –  –  –  –  –  –  –  –  –  –  –  12%  –  –
LINE:RTE  –  –  –  13%  –  –  –  –  –  –  13%  –  –  –  –  –
LINE:RTE-BovB  –  –  –  –  –  –  18%  –  –  –  –  –  –  –  –  –
LTR:ERV1  –  –  –  –  –  –  –  –  –  –  18%  –  –  –  –  –
LTR:ERVL-MaLR  14%  –  –  –  –  –  15%  –  –  –  –  –  –  –  –  –
LTR:MaLR  –  13%  13%  –  –  11%  –  19%  17%  13%  –  –  –  –  –  –
SINE:Alu  49%  49%  51%  –  –  –  –  –  –  –  –  –  –  –  –  –
SINE:B1  –  –  –  –  –  –  –  41%  35%  37%  –  –  –  –  –  –
SINE:B2  –  –  –  –  –  –  –  31%  30%  –  –  –  –  –  –  –
SINE:B4  –  –  –  –  –  –  –  32%  30%  26%  –  –  –  –  –  –
SINE:BovA  –  –  –  36%  –  –  –  –  –  –  –  –  –  –  –  –
SINE:ID  –  –  –  –  –  –  –  12%  22%  –  –  –  –  –  –  –
SINE:MIR  35%  36%  36%  29%  33%  37%  35%  15%  13%  21%  62%  57%  –  –  –  –
SINE:SINE  –  –  –  20%  –  28%  45%  –  –  –  25%  –  –  –  –  –
SINE:Sauria  –  –  –  –  –  –  –  –  –  –  –  –  –  15%  –  –
SINE:V  –  –  –  –  –  –  –  –  –  –  –  –  –  –  –  12%
SINE:tRNA-Glu  –  –  –  16%  –  –  –  –  –  –  –  –  –  –  –  –
SINE:tRNA-Lys  –  –  –  –  34%  –  –  –  –  –  –  –  –  –  –  –
Satellite:Satellite  –  –  –  –  –  –  –  –  –  –  –  –  –  –  –  16%
Simple repeat:Simple repeat  27%  26%  27%  20%  24%  17%  18%  44%  40%  26%  31%  20%  13%  30%  14%  34%
Notes: The percentages are fractions of introns with the selected repeats over all introns in the listed species and only those greater than 10% are showed in the table. The species codes are: 1, human; 2, orangutan; 3, macaque; 4, cow; 5, panda; 6, horse; 7, elephant; 8, mouse; 9, rat; 10, guinea pig; 11, opossum; 12, platypus; 13, chicken; 14, anole; 15, frog; and 16, zebrafish.