Table 3.
Analysis of molecular variance (AMOVA) calculated using the distance method for plains cottonwood (Populus deltoides subsp. monilifera, 304 individuals) and saltcedar (Tamarix ramosissima, Tamarix chinensis, and hybrids, 369 individuals) collected along a latitudinal gradient in the central USA
| Species | Source of variation | d.f. | Sum of squares | Variance components | Percentage of variation |
|---|---|---|---|---|---|
| Cottonwood | Among populations | 12 | 129.056 | 0.16298 | 4.90 |
| Within populations | 595 | 1881.365 | 3.16196 | 95.10 | |
| Total | 607 | 2010.421 | 3.32494 | ||
| Saltcedar | Among populations | 14 | 200.899 | 0.23357 | 7.54 |
| Within populations | 723 | 2071.795 | 2.86555 | 92.46 | |
| Total | 737 | 2272.694 | 3.09912 |