Table 1. Geographic origins, sample sizes, number of genets, number of alleles (NA), number of effective alleles (NEA), Nei’s genotypic diversity index (D) and the value of the first axis of PCA to the environmental variables (PC1) for the 13 Myriophyllum spicatum populations studied.
| Populations | Location | Latitude | Longitude | Altitude | Population size (ramets) | Number of genotypes (genets) | NA | NEA | D | PC1 |
|---|---|---|---|---|---|---|---|---|---|---|
| QTP | ||||||||||
| ZB | Zhongba, Xizang | 29.6957 | 84.1284 | 4569 | 14 | 2 | 33 | 32.27 | 0.264 | −2.46 |
| AR | Angren, Xizang | 29.2085 | 87.4154 | 4357 | 12 | 9 | 44 | 36.176 | 0.955 | −4.247 |
| DR | Dingri, Xizang | 28.5824 | 87.6523 | 4253 | 6 | 5 | 45 | 37.772 | 0.933 | −3.203 |
| SZ | Shenzha, Xizang | 30.7542 | 88.7873 | 4692 | 18 | 2 | 32 | 30.226 | 0.111 | −4.069 |
| RK | Rikaze, Xizang | 29.3245 | 89.4102 | 3787 | 18 | 11 | 45 | 37.702 | 0.882 | −3.616 |
| CM | Cuomai, Xizang | 28.7710 | 91.6686 | 4626 | 18 | 5 | 36 | 33.04 | 0.81 | −4.853 |
| GB | Gongbujiangda, Xizang | 29.8927 | 93.4645 | 3560 | 20 | 13 | 30 | 25.76 | 0.926 | −2.357 |
| LZ | Linzhi, Xizang | 29.6309 | 94.3825 | 2990 | 12 | 12 | 53 | 43.008 | 1 | −0.12 |
| YGP | ||||||||||
| YS | Yongsheng, Yunnan | 26.6237 | 100.6526 | 1520 | 20 | 8 | 43 | 40.166 | 0.805 | 4.713 |
| DL | Dali, Yunnan | 25.6708 | 100.2109 | 1954 | 19 | 18 | 73 | 50.596 | 0.994 | 5.495 |
| CJ | Chengjiang, Yunnan | 24.6323 | 102.8828 | 1735 | 20 | 17 | 75 | 49.504 | 0.984 | 5.793 |
| LB | Leibo, Sichuan | 28.4286 | 103.7854 | 1134 | 16 | 7 | 44 | 35.798 | 0.775 | 4.97 |
| WN | Weining, Guizhou | 26.8383 | 104.2645 | 2187 | 13 | 13 | 69 | 48.146 | 1 | 3.954 |
| Mean | 47.846 | 38.474 | 0.803 | |||||||
| Total | 206 | 122 | 136 | 34.692 | 0.987 | |||||