Characterization of the chloroplast genome of the Osmanthus didymopetalus

Abstract

In this study, we assembled the chloroplast genome of Osmanthus didymopetalus (Oleaceae), a rare evergreen tree native to Hainan, China. The genome of O. didymopetalus was 155,155 bp in length and contained a pair of inverted repeats (IR, 25,697–25,704 bp) regions, which were separated by the small single copy (SSC, 17,591 bp) and the large single copy (LSC, 86,225 bp) regions. The cp genome encoded 133 genes including 88 protein-coding genes, 37 tRNA genes, and eight rRNA ribosomal genes. The overall GC content of O. didymopetalus chloroplast genome is 37.8%. Phylogenetic results showed that O. didymopetalus was more closely to O. yunnanensis, O. fragrans and O. insularis. This study will be beneficial for the evolutionary study and phylogenetic reconstruction of Osmanthus.

Keywords:

• Osmanthus didymopetalus
• plastid genome
• genome structure
• phylogeny

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability statement

The data that support the findings of this study are openly available in NCBI at https://www.ncbi.nlm.nih.gov/.

Additional information

Funding

This study was partially funded by the Key Research and Development Project in Anhui [No. 1804a07020143], China Postdoctoral Science Foundation [No. 2019M651839], the Postgraduate Research & Practice Innovation Program of Jiangsu Province [No. KYCX17_0815], the Nanjing Forestry University Excellent Doctoral Thesis Fund [2169001], and the Priority Academic Program Development (PAPD) of Jiangsu High Education Institutions, Jiangsu Province, China.