›› 2020, Vol. 32 ›› Issue (5): 810-815.DOI: 10.3969/j.issn.1004-1524.2020.05.08

• Horticultural Science • Previous Articles     Next Articles

Genetic diversity analysis of Sabia parviflora based on chloroplast gene psbA-trnH sequence

YAN Fulin, WANG Bo, WEN Di, XU Wenfen, SUN Qingwen*, WEI Shenghua   

  1. Department of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
  • Received:2019-11-14 Online:2020-05-25 Published:2020-05-29

Abstract: System evolution relationship, genetic diversity and molecular identification method of the germplasm resources of Sabia parviflora from different regions of Guizhou were analyzed based on the sequence of psbA-trnH chloroplast gene. The psbA-trnH sequences of 13 Sabia parviflora samples from 4 counties and districts in Guizhou were amplified and sequenced by PCR. Codon Code Aligner 8.0.2 software was applied for collation and splicing, and population genetic distance, haplotype number and diversity were analyzed to construct phylogenetic tree. The length of psbA-trnH sequence of 13 chloroplast genes of Sabia parviflora was 469-488 bp, with 37 polymorphism sites, 14 reduced information sites, 23 indigenous sites, and 3 inserted/deleted fragments. The variation range of genetic distance between different populations was 0-0.085 9, and the average genetic distance was 0.025 3, with 4 haplotypes, haplotype (gene) diversity (Hd) of 0.679. In Fu and Li's D* test, Fu and Li's F* test, and Tajima's D test, P values were all greater than 0.10, without statistical significance. In conclusion, the evolution rate of Sabia parviflora was not consistent, and the genetic diversity was rich. This study enriched the research data of Sabia parviflora and its genera, and provided a certain reference for the classification, identification, systematic evolution and molecular marker development of Sabia parviflora.

Key words: Sabia parviflora, psbA-trnH sequence, Guizhou, genetic diversity

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