Table 2. The effects of sample size upon clustering by STRUCTURE for three different evolutionary histories: 100/400/800, 100/600/800 and 100/700/800 (Figure).
|
ND |
||||
|---|---|---|---|---|
| 25 | 50 | 100 | ||
| 100/400/800 | ||||
| 25 | 1.00, 1.00, 0.66, 0.00 | 1.00, 1.00, 0.82, 0.00 | 1.00, 1.00, 0.85, 0.00 | |
| NC | 50 | 1.00, 1.00, 0.33, 0.00 | 1.00, 1.00, 0.99, 0.00 | 1.00, 1.00, 0.98, 0.00 |
| 100 | 1.00, 1.00, 0.00, 0.93 | 1.00, 1.00, 1.00, 0.00 | 1.00, 1.00, 1.00, 0.00 | |
| 100/600/800 | ||||
| 25 | 1.00, 1.00, 0.24, 0.00 | 1.00, 1.00, 0.56, 0.00 | 1.00, 1.00, 0.72, 0.00 | |
| NC | 50 | 1.00, 1.00, 0.00, 0.01 | 1.00, 1.00, 0.35, 0.00 | 1.00, 1.00, 0.85, 0.00 |
| 100 | 1.00, 1.00, 0.00, 0.64 | 1.00, 1.00, 0.00, 0.99 | 1.00, 1.00, 1.00, 0.00 | |
| 100/700/800 | ||||
| 25 | 1.00, 1.00, 0.00, 0.00 | 1.00, 1.00, 0.39, 0.00 | 1.00, 1.00, 0.65, 0.00 | |
| NC | 50 | 1.00, 1.00, 0.00, 0.21 | 1.00, 1.00, 0.00, 0.00 | 1.00, 1.00, 0.80, 0.00 |
| 100 | 1.00, 1.00, 0.00, 0.65 | 1.00, 1.00, 0.00, 0.83 | 1.00, 1.00, 1.00, 0.00 | |
NC and ND are the samples sizes for populations C and D, respectively. Populations A and B had a sample size of 50 individuals for all of simulations. The data within the table shows the proportions of genetic ancestry within samples from populations A, B, C and D that was assigned to each of two clusters. The evolutionarily appropriate clustering arrangement is 1.00, 1.00, 1.00, 0.00, which indicates that all the genes from populations A, B and C were assigned to one cluster, and all the genes from population D were assigned to the second cluster.