The complete chloroplast genome and phylogenetic analysis of Ophiorrhiza guizhouensis (Rubiaceae), a folk medicinal plant from the Wuling Mountain region

Ophiorrhiza guizhouensis has not had its complete chloroplast genome reported, which limits our understanding of its genetics and evolution. In this study, we assembled and annotated its chloroplast genome, revealing a circular structure with 80 protein-coding genes (GenBank accession number: PX023271). The total length of the genome was found to be 154,134 bp, and its GC content was 37.76%. Phylogenetic analysis confirmed that Ophiorrhiza guizhouensis belonged to the genus Ophiorrhiza (subfamily Rubioideae, Rubiaceae) and exhibited the closest phylogenetic affinity to Ophiorrhiza densa. These findings provide valuable genomic resources for in-depth studies on Ophiorrhiza and the Rubiaceae family, including genetic diversity analysis and phylogenetic research.