Due to global climate change (especially the repeated fluctuation of the Quaternary climate) and environmental isolation have a profound impact on the genetic diversity, genetic structure, geographical distribution pattern and population historical dynamics of modern plants. We used the research method of molecular pedigree geography to analyze the three non-coding chloroplast fragments psbK-psbI, atpF-atpH and trnL-F of 212 individuals from 19 populations in China of Pinellia ternata, a Araceae Pinellia perennial herb with high value of medicin, to explore the genetic diversity, genetic structure, geographical distribution pattern and its causes, and also explore the historical dynamics of its population. The results were as follows: (1) The total haplotype diversity (Hd) of P. ternata was 0.882 and the total nucleotide diversity (π) was 1.23 × 10-3, which means high genetic diversity at the species level. (2) The results of molecular analysis of variance (AMOVA) showed that genetic variation of P. ternata occurred mainly in 89.27% of populations, with significant genetic differentiation (FST=0.909, P GST(0.01
Full Text Finder