Table 3. Genetic distances between a priori defined populations of tetraploid wheats.
| Bread Wheat | dCM | dNEA | dNWA | dSEE | dSWA | dSWE | Emmer | Rivet | Wild Emmer | |
| Bread Wheat | 0 | - | - | - | - | - | - | - | - | - |
| dCM | 0.240 | 0 | - | - | - | - | - | - | - | - |
| dNEA | 0.271 | 0.083 | 0 | - | - | - | - | - | - | - |
| dNWA | 0.279 | 0.043 | 0.079 | 0 | - | - | - | - | - | - |
| dSEE | 0.235 | 0.093 | 0.122 | 0.114 | 0 | - | - | - | - | - |
| dSWA | 0.237 | 0.092 | 0.083 | 0.091 | 0.093 | 0 | - | - | - | - |
| dSWE | 0.219 | 0.051 | 0.059 | 0.047 | 0.060 | 0.059 | 0 | - | - | - |
| Emmer | 0.188 | 0.196 | 0.203 | 0.232 | 0.170 | 0.174 | 0.160 | 0 | - | - |
| Rivet | 0.204 | 0.092 | 0.099 | 0.107 | 0.068 | 0.087 | 0.043 | 0.152 | 0 | - |
| Wild Emmer | 0.145 | 0.192 | 0.223 | 0.230 | 0.174 | 0.194 | 0.162 | 0.144 | 0.157 | 0 |
Bread wheat (Triticum aestivum) is included for comparison. Distances are based on 29 nuSSRs. dCM: durum Central Mediterranean; dNEA: durum Northeast Africa; dNWA: durum Northwest Africa; dSEE: durum Southeast Europe; dSWA: durum Southwest Asia; dSWE: durum Southwest Europe.