Table 9.
Hierarchical analysis of molecular variance (AMOVA) for the 35 B. tabaci MEAM1 populations collected from Georgia, USA, based on six microsatellite markers. (A) Among populations collected from different host plants. (B) Among populations collected from different farmscapes.
| Source of Variation | Degrees of Freedom | Sums of Squares | Mean Sums of Squares | % Variation | p-Value |
|---|---|---|---|---|---|
| A, Host Plants | |||||
| Among host plants | 12 | 34.35 | 2.86 | 2.00 | 0.39 |
| Among populations within a host plant | 22 | 36.51 | 1.66 | 1.00 | 0.32 |
| Among individuals within a population | 409 | 708.27 | 1.64 | 23.00 | <0.001 |
| Within individuals | 444 | 442.00 | 1.00 | 74.00 | <0.001 |
| Total | 887 | 1184.63 | 1.34 | 100.00 | |
| B, Farmscapes | |||||
| Among farmscapes | 14 | 45.88 | 3.28 | 2.00 | 0.43 |
| Among populations within a farmscape | 20 | 40.42 | 2.01 | 0.00 | 0.63 |
| Among individuals within a population | 409 | 680.32 | 1.59 | 22.00 | <0.001 |
| Within individuals | 444 | 446.50 | 1.01 | 76.00 | <0.001 |
| Total | 887 | 1172.69 | 1.32 | 100.00 | |
Significance at p < 0.01 based on 999 permutation.