Table 4.
Estimates of coalescent parameters from the divergence between potato and tobacco populations of Rhizoctonia solani AG-3
| Loci and populations | Effective sample size | Population growth rate a | Theta (4Ne μ) b | Migration rate c 4Nm (+ = receiving population) | |||
| pP42F | 1, + | 2, + | |||||
| 1. | Potato (Northern US + Eastern NC) | 26 | 37.05 | 0.01412 | - | 0.0000 | |
| 2. | Tobacco (US + Brazil) | 30 | -23.63 | 0.00422 | 0.0994 | - | |
| pP89 | 1, + | 2, + | 3, + | ||||
| 1. | Potato (Northern US) | 10 | 34.12 | 0.00203 | - | 5.1115 | 0.0000 |
| 2. | Potato (Eastern NC) | 16 | 10.21 | 0.00155 | 0.1258 | - | 0.0417 |
| 3. | Tobacco (US + Brazil) | 30 | -36.95 | 0.00176 | 0.0000 | 0.0000 | - |
a Most probable estimate of population growth rate calculated by Bayesian analyses using the program Lamarc 2.0 [28, 29].
b Theta values represent a measure of effective population size (for diploids, Theta = 4Neμ, where Ne = effective population size and μ = mutation rate inferred for each locus).
c Migration between geographical or host populations was estimated using an isolation with migration model in the program Migrate implemented by SNAP Workbench [68]. Source populations are shown along the top and sink populations are indicated on the left. Estimates of population's growth, theta and migration rates are at 95% confidence interval.