3.3 Genetic diversity of populations
The percentage of polymorphic loci (PPL), observed number of alleles
(N a), effective number of alleles (N e), expected
heterozygosity (H e) and Shannon information index (I ) of
43 populations were from 19.23 to 54.29, 0.5012 to 1.1155, 1.1315 to
1.2908, 0.0791 to 0.1771 and 0.1163 to 0.2709, respectively. The PPL,N a, N e, H e, I of populations from Group 1
were 32.63, 0.7193, 1.1848, 0.1100 and 0.1667, respectively, while those
of Group 2 were 32.02, 0.7322, 1.1817, 0.1082 and 0.1640 (Table S1). The
genetic diversity indices showed the populations of Group 2 exhibited
greater variability than those of Group 1. However, the difference of
genetic diversity between two groups was minimal. Overall, the results
of genetic diversity analyses from 43 populations of P. villosasuggested that there was abundant genetic diversity of this species
within the Inner Mongolian Plateau.