Table 2. Genetic diversity indices for Chinese and North American populations of Ambrosia artemisiifolia based on AFLP markers.
| Population | N | PLP (%) | Hj | Fst |
| North America | ||||
| 1F | 11 | 81.1 | 0.280 (0.009) | |
| 4F | 11 | 80.4 | 0.262 (0.010) | |
| M | 55 | 87.3 | 0.276 (0.008) | |
| An | 15 | 80.1 | 0.289 (0.009) | |
| Total North America | 0.295 | 0.060 | ||
| China | ||||
| MD | 28 | 80.4 | 0.280 (0.009) | |
| SP | 26 | 78.3 | 0.283 (0.009) | |
| DD | 20 | 75.8 | 0.263 (0.009) | |
| WH | 29 | 79.2 | 0.272 (0.009) | |
| NJ | 30 | 80.7 | 0.269 (0.009) | |
| NC | 29 | 77.6 | 0.265 (0.009) | |
| Total China | 0.311 | 0.127 |
N is the number of scored individuals; PLP is the proportion of polymorphic loci at the 5% level; Hj is Nei's genetic diversity; Fst is Wright's Fst.