Table 2.
Average pairwise genetic distance of gene pools and Panicum samples
| Upland Midwest (24) | Upland Northern Great Plains (32) | Upland Eastern Savanna (15) | Lowland Atlantic Coastal Plain (9) | Lowland Southern Great Plains (18) | Lowland Western Gulf Coast (4) | Hybrid-SPB (2) | Hybrid-HOF (1) | P. amarulum (1) | P. amarum (1) | |
|---|---|---|---|---|---|---|---|---|---|---|
| Upland Midwest | ||||||||||
| Upland Northern Great Plains | 0.1518 | |||||||||
| Upland Eastern Savanna | 0.1482 | 0.1529 | ||||||||
| Lowland Atlantic Coastal Plain | 0.1825 | 0.1794 | 0.1788 | |||||||
| Lowland Southern Great Plains | 0.1821 | 0.1773 | 0.1791 | 0.15 | ||||||
| Lowland Western Gulf Coast | 0.1742 | 0.1676 | 0.1699 | 0.1558 | 0.1425 | |||||
| Hybrid-SPB | 0.1605 | 0.1592 | 0.158 | 0.1572 | 0.1596 | 0.1545 | ||||
| Hybrid-HOF | 0.1621 | 0.1559 | 0.1615 | 0.1623 | 0.1581 | 0.1591 | 0.1603 | |||
| P. amarulum | 0.1748 | 0.1707 | 0.1715 | 0.1293 | 0.1479 | 0.1472 | 0.1489 | 0.1559 | ||
| P. amarum | 0.1856 | 0.182 | 0.1824 | 0.153 | 0.1503 | 0.1485 | 0.1629 | 0.1713 | 0.1434 | |
| P. anceps (1) | 0.3498 | 0.345 | 0.3551 | 0.3595 | 0.3314 | 0.346 | 0.3492 | 0.3448 | 0.356 | 0.3421 |
Parentheses indicate the number of samples included in each group. The lowland–upland hybrids are separated into population of origin. Note lowland Western Gulf Coast is more similar to upland ecotype gene pools than are either other lowland ecotype gene pools.