Table 2. Population genetic diversity measures of the willow populations based on nine microsatellite loci, including the mean number of alleles per locus (NA), allelic richness, the number of effective alleles per locus (Ne), observed heterozygosity (H o), expected heterozygosity (H e), the number of loci deviating from HWE in each population, the test for heterozygote deficiency in each population and inbreeding coefficient (F IS).
| Sampling location | Species | NA mean | Allelic richness | Ne mean | Ho | He | Loci deviating from HWE | Test het. deficit | FIS |
|---|---|---|---|---|---|---|---|---|---|
| Rhône Glacier | Salix purpurea | 4.1 | 3.3 | 2.3 | 0.488 | 0.515 | 2 | P<0.001 | 0.052 |
| Salix helvetica | 8.8 | 6.0 | 3.4 | 0.616 | 0.689 | 2 | P<0.001 | 0.104 | |
| Hybrid | 8.3 | 6.1 | 3.9 | 0.732 | 0.712 | 5 | P<0.05 | −0.028 | |
| Morteratsch Glacier | Salix purpurea | 3.2 | 2.9 | 1.9 | 0.402 | 0.441 | 1 | n.s. | 0.090 |
| Salix helvetica | 8.8 | 6.4 | 3.9 | 0.612 | 0.707 | 3 | P<0.001 | 0.134 | |
| Hybrid | 4.3 | n/a | 3.1 | 0.685 | 0.677 | 1 | n.s. | −0.014 | |
| Inn River | Salix purpurea | 4.8 | 3.8 | 2.4 | 0.479 | 0.518 | 2 | P<0.01 | 0.077 |
| Gepatschferner | Salix helvetica | 8.0 | 6.3 | 3.5 | 0.629 | 0.684 | 2 | P<0.01 | 0.074 |
Abbreviations: n/a, not available; n.s., non-significant.