Table 4 The summary of different nucleotide repeats of SSRs identified among six peach accessions
Repeat unit | Repeat type | Number | Frequency (%) |
|---|---|---|---|
Mononucleotide | Total | 67,196 | 47.36% |
Dinucleotide | AT/TA | 18,145 | 12.79% |
CT/TC | 16,557 | 11.67% | |
AG/GA | 16,107 | 11.35% | |
GT/TG | 2926 | 2.06% | |
AC/CA | 2779 | 1.96% | |
CG/GC | 61 | 0.04% | |
Total | 56,575 | 39.87% | |
Trinucleotide | AAT/ATA/TAA | 1642 | 1.16% |
TTA/TAT/ATT | 1487 | 1.05% | |
TTC/TCT/CTT | 1332 | 0.94% | |
AAG/AGA/GAA | 1319 | 0.93% | |
GGT/GTG/TGG | 676 | 0.48% | |
GGA/GAG/AGG | 531 | 0.37% | |
CCA/CAC/ACC | 485 | 0.34% | |
AAC/ACA/CAA | 484 | 0.34% | |
CCT/CTC/TCC | 473 | 0.33% | |
TTG/TGT/GTT | 425 | 0.30% | |
GGC/GCG/CGG | 138 | 0.10% | |
CCG/CGC/GCC | 85 | 0.06% | |
Others | 2090 | 1.47% | |
Total | 11,158 | 7.86% | |
Tetranucleotide | Total | 2102 | 1.48% |
Pentanucleotide | Total | 3074 | 2.17% |
Hexanucleotide | Total | 1790 | 1.26% |