# Complete chloroplast genome analysis of Polygala chinensis L. (= P. glomerata Lour.) (Fabales, Polygalaceae)

## TL;DR

This paper reports the complete chloroplast genome of Polygala chinensis, a medicinal plant, providing a reference for molecular identification and evolutionary studies.

## Contribution

The study provides the first complete chloroplast genome sequence for Polygala chinensis.

## Key findings

- The chloroplast genome is 163,097 bp with a typical quadripartite structure.
- It contains 113 unique genes, including 78 protein-coding genes.
- Phylogenetic analysis shows P. chinensis is sister to Polygala subopposita.

## Abstract

Polygala chinensis L. is a medicinal herb with anti-inflammatory activity and traditional use against snake envenomation. We assembled and annotated its complete chloroplast genome using Illumina data. The chloroplast genome is 163,097 bp and exhibits a typical quadripartite structure, comprising a large single-copy region (83,285 bp), two inverted repeats (34,925 bp each), and a small single-copy region (9,962 bp). It contains 113 unique genes, including 78 protein-coding genes, 30 tRNA genes, and 5 rRNA genes. Phylogenetic analysis placed P. chinensis as sister to Polygala subopposita. This work provides the first species-specific chloroplast genome reference for P. chinensis, enabling precise molecular identification and evolutionary studies.