Complete plastome sequence of Hedyotis ovata Thunb. ex Maxim (Rubiaceae): an endemic shrub in Hainan, China

Hedyotis ovata is a plant of the family Rubiaceae. So far, there is no study on the genome of H. ovata. Here, we report and characterize the complete plastid genome sequence of H. ovata in an effort to provide genomic resources useful for promoting its conservation. The complete plastome is 154,560 bp in length and contains the typical structure and gene content of angiosperm plastome, including two inverted repeat (IR) regions of 26,058 bp, a large single-copy (LSC) region of 84,579 bp and a small single-copy (SSC) region of 17,865 bp. The plastome contains 114 genes, consisting of 80 unique protein-coding genes, 30 unique tRNA genes, and 4 unique rRNA genes. The overall A/T content in the plastome of H. ovata is 61.90%. The complete plastome sequence of H. ovata will provide a useful resource for the conservation genetics of this species as well as for the phylogenetic studies for Rubiaceae.