# Complete chloroplast genome of endangered species Dipterocarpus retusus Blume (Dipterocarpaceae) and its phylogenetic implications

## TL;DR

This study sequenced the complete chloroplast genome of an endangered tree species and explored its evolutionary relationships.

## Contribution

The complete chloroplast genome of Dipterocarpus retusus is sequenced and analyzed for phylogenetic insights.

## Key findings

- The chloroplast genome of D. retusus is 154,303 bp long with specific region sizes.
- It encodes 128 genes, including 84 protein-coding genes.
- Phylogenetic analysis shows D. retusus is closely related to D. gracilis.

## Abstract

Dipterocarpus retusus Blume is an endangered species on the IUCN Red List. In this study, we reported the complete chloroplast (cp) genome of D. retusus (GenBank accession number: OP271853). The cp genome was 154,303 bp long, with a large single-copy (LSC) region of 85,586 bp and a small single-copy (SSC) region of 20,273 bp separated by a pair of inverted repeats (IRs) of 24,222 bp. It encodes 128 genes, including 84 protein-coding genes, 36 tRNA genes, and eight ribosomal RNA genes. We also reconstructed the cp genome phylogeny of Dipterocarpus, which indicated D. retusus was closely related with the sympatric species D. gracilis. This study may contribute valuable information to the phylogenetic relationships within the genus Dipterocarpus.