Table 3.
Calculation of molecular variance for chlorotype sequences of Nitraria tangutorum. d.f., degrees of freedom; SS, sum of squares; VC, variance component; PV, percentage of variation; * p < 0.05.
| Regions | Source of Variation | d.f. | SS | VC | PV (%) | Fixation Index |
|---|---|---|---|---|---|---|
| East-A | Among populations | 10 | 56.705 | 0.623 | 47.770 | FST = 0.478 * |
| Within-populations | 77 | 52.500 | 0.681 | 52.230 | ||
| Total | 87 | 109.205 | 1.305 | |||
| East-B | Among populations | 5 | 38.049 | 0.849 | 43.500 | FST = 0.435 * |
| Within-populations | 40 | 44.125 | 1.103 | 56.500 | ||
| Total | 45 | 82.174 | 1.952 | |||
| West | Among populations | 3 | 3.431 | 0.132 | 33.070 | FST = 0.331 * |
| Within-populations | 23 | 6.125 | 0.266 | 66.930 | ||
| Total | 26 | 9.556 | 0.398 | |||
| West, East-A and East-B in comparison | Among groups | 2 | 121.013 | 1.314 | 51.960 | FCT = 0.520 * |
| Among populations within groups | 16 | 66.398 | 0.441 | 17.450 | FSC = 0.363 * | |
| Within populations | 126 | 97.500 | 0.774 | 30.590 | FST = 0.694 * | |
| Total | 144 | 284.910 | 2.530 |