Complete plastome sequence of Heptacodium miconioides Rehd. (Caprifoliaceae): an Endangered (EN) plant species endemic to China

Abstract

Heptacodium miconioides Rehd. is a rare and endangered plant species occurring in Anhui, Hubei, and Zhejiang Provinces of China, which is endemic to China. Here, we report and characterize the complete plastid genome sequence of H. miconioides in an effort to provide genomic resources useful for promoting its conservation. The complete plastome is 156,313 bp in length and contains the typical structure and gene content of angiosperm plastome, including two inverted repeat (IR) regions of 23,904 bp, a large single-copy (LSC) region of 89,760 bp and a small single-copy (SSC) region of 18,745 bp. The plastome contains 114 genes, comprising 79 unique protein-coding genes, 31 unique tRNA genes, and 4 unique rRNA genes (5S rRNA, 4.5S rRNA, 23S rRNA, and 16S rRNA). The overall A/T content in the plastome of D. indica is 61.60%. The complete plastome sequence of H. miconioides will provide a useful resource for the conservation genetics of this species as well as for the phylogenetic studies of Caprifoliaceae.

Keywords

• heptacodium miconioides rehd.
• plastome
• phylogeny
• genome structure
• caprifoliaceae