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 |