Table 2 Features of SSRs identified in ESTs
SSR database mining | Â | ||
Total number of sequences examined | 5,085 | ||
Total length of examined sequences (bp) | 2,878,318 | ||
Number of ESTs containing SSRs | 1,365 (26.8%) | ||
Number of identified SSRs | 3,583 | ||
Number of sequences containing more than 1 SSR | 698 | ||
Number of SSRs present in compound formation | 1,729 | ||
Frequency of SSR | 1/0.8 kb | ||
Distribution of SSRs | Â | Â | Â |
Type | Class I | Class II | Total |
Mono-nucleotides | 607 | 2,891 | 3,498 |
Di-nucleotides | 10 | 30 | 40 |
Tri-nucleotides | 12 | 21 | 33 |
Tetra-nucleotides | 9 | 0 | 9 |
Penta-nucleotides | 2 | 0 | 2 |
Hexa-nucleotides | 1 | 0 | 1 |
Total | 641 | 2,942 | 3,583 |