Table 5.
Analyses of molecular variance (AMOVA) of Silene ciliata based on 10 microsatellite markers
| Source of variation | d.f. | Sum of squares | Variance components | Fixation indices | Proportion of variation | P |
|---|---|---|---|---|---|---|
| 1. Silene ciliata | ||||||
| Among populations | 5 | 86·4 | 0·25 | 0·09 | 8·83 | <0·01 |
| Within populations | 354 | 898·3 | 2·53 | 91·17 | <0·01 | |
| 2. Mountain islands: Low1 + Int.1 + High1 vs. Low2 + Int.2 + High2 (K = 2) | ||||||
| Among groups | 1 | 45·87 | 0·19 | 0·06 | 6·94 | 0·1 |
| Among populations within groups | 4 | 40·53 | 0·13 | 0·04 | 4·42 | <0·01 |
| Within populations | 354 | 898·3 | 2·53 | 0·11 | 88·64 | <0·01 |
| 3. Mountain islands with Low1 isolated: Low1 vs. Int.1 + High1 vs. Low2 + Int.2 + High2 (K = 3) | ||||||
| Among groups | 2 | 62·13 | 0·21 | 0·07 | 7·36 | 0·01 |
| Among populations within groups | 3 | 24·27 | 0·09 | 0·04 | 3·26 | <0·01 |
| Within populations | 354 | 898·3 | 2·53 | 0·11 | 89·38 | <0·01 |
| 4. Isolated belts: Low1 + Low2 vs. Int.1 + Int.2 vs. High1 + High2 (K = 3) | ||||||
| Among groups | 2 | 25 | –0·06 | 0·08 | –2·40 | 0·73 |
| Among populations within groups | 3 | 61·4 | 0·3 | 0·1 | 10·79 | <0·01 |
| Within populations | 354 | 898·3 | 2·54 | −0·2 | 91·61 | <0·01 |
The four possible scenarios considered were: no population structure (1), mountain islands (2), mountain islands with Low1 population isolated (3) and isolated belts (4).