The complete chloroplast genome sequence of Polygonum chinense L.

Polygonum chinense is a traditional natural plant pharmaceutical with antimicrobial, antioxidant, and antidiarrheal effects and mainly distributed in China and Southeast Asian countries. The complete chloroplast sequence of P. chinense has been determined in this study. The cpDNA was 158,981 bp in length, containing a pair of inverted repeats of 30,872 bp each separated by a large and small single-copy region of 84,347 and 12,890 bp, respectively. The genome contained 86 protein-coding genes, eight rRNA genes, and 37 tRNA genes. The overall GC content of the chloroplast genome was 38%. Phylogenetic tree demonstrated that P. chinense closely related to Rheum palmatum and Rheum wittrockii.