The complete chloroplast genome sequence of the medicinal plant Strophanthus divaricatus (Lour.) Hook. & Arn. (1837) and its phylogenetic analysis

TL;DR

This paper presents the full chloroplast genome of the medicinal plant Strophanthus divaricatus and its evolutionary relationships.

Contribution

The study provides the first complete chloroplast genome sequence for S. divaricatus and its phylogenetic placement.

Findings

The chloroplast genome is 155,409 bp long with a typical quadripartite structure.

Phylogenetic analysis shows S. divaricatus is closely related to S. wallichii.

The genome contains 130 annotated genes, including 85 protein-coding genes.

Abstract

Strophanthus divaricatus (Lour.) Hook. & Arn. (1837) is an important medicinal plant utilized in traditional Chinese and Yao ethnomedicine. Here, we report its complete chloroplast genome based on Illumina sequencing. The circular genome is 155,409 bp in length, with an overall GC content of 38.28%, and displays a typical quadripartite structure comprising a large single-copy region (85,683 bp), a small single-copy region (18,182 bp), and two inverted repeats (25,772 bp each). A total of 130 genes were annotated, including 85 protein-coding genes, 37 tRNAs, and 8 rRNAs. Phylogenetic analysis revealed that S. divaricatus is closely related to S. wallichii.

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