3.1 | Genetic diversity
The alignment of psbA–trnH and rpl14–rpl36 sequences was 1344 bp in length, with 49 haplotypes identified by 133 nucleotide substitution sites or indels. All haplotypes were deposited in GenBank (accession numbers: MT345628–MT345676). The haplotype geographical distribution ofC. faberi in the Qinling Mountains was presented in Figure 1.
For all samples, estimates of haplotype diversity Hd ranged from 0.500 (SXX) to 0.952 (LSZ) with an average of 0.813, the lowest variance of haplotype diversity 0.500 and 0.661 were found in SXX and SZA; nucleotide diversity Pi varied from 0 to 3.80×10-3with an average of 1.81×10-3 (Table S1), whereas nucleotide diversity values of SXX and SZA were moderate.