Table 2 Occurrence and distribution of repetitive DNA in the BAC end sequences of bread wheat chromosome arm 3AS
Class, subclass, family | No. of hits | No. of bases (bp) | Fraction of chromosome arm 3AS (%) |
|---|---|---|---|
Class I elements (retrotransposons) | 15,913 | 7,370,015 | 66.9 |
LTR retrotransposons | 15,665 | 7,284,593 | 66.1 |
gypsy-like | 12,150 | 5,614,688 | 50.9 |
copia-like | 3,368 | 1,615,408 | 14.6 |
TRIM | 16 | 3,931 | 0.0 |
Unknown | 131 | 50,566 | 0.5 |
Non-LTR retrotransposons | 248 | 85,422 | 0.8 |
LINE | 222 | 77,153 | 0.7 |
SINE | 1 | 75 | 0.0 |
Unknown | 25 | 8,194 | 0.1 |
Class II elements (DNA transposons) | 1,626 | 450,920 | 4.1 |
CACTA | 1,220 | 381,611 | 3.5 |
Mutator | 112 | 24,277 | 0.2 |
MITE | 264 | 35,028 | 0.3 |
LITE/Pong | 20 | 7,055 | 0.1 |
Unclassified elements | 10 | 2,949 | 0.0 |
Other known repeats | 311 | 15,832 | 0.1 |
Simple repeats | 291 | 13,983 | 0.1 |
Tandem repeats | 20 | 1,849 | 0.0 |
Low complexity | 219 | 10,947 | 0.1 |
Unknown repeats | 332 | 829,211 | 7.5 |
Total | 18,558 | 8,712,367 | 79.1 |