The complete chloroplast genome of an endemic species of seed plants in China, Cleidiocarpon cavalerie (Malpighiales: Euphorbiaceae)

Cleidiocarpon cavaleriei (Euphorbiaceae) is native to China with high economic and ornamental value. In this study, we first characterized the complete chloroplast genome of C. cavaleriei based on next generation sequencing, which never reported in any other species of Cyclobalanopsis. The whole genome is 161,544 bp in length, which is divided into a large single-copy (LSC) region of 89,160 bp and a small single-copy (SSC) region of 14,392 bp. These two regions were separated by a pair of inverted repeat regions (IRa and IRb), each of 28,996 bp. A total of 132 functional genes were encoded, consisting of 85 protein-coding genes, 38 tRNA genes, and 8 rRNA genes. The overall GC content of the chloroplast genome is 44.2%, and the corresponding values of the LSC, SSC, and IR regions are 33.3, 30.6 and 41.3%, respectively. The maximum likelihood phylogenetic analysis showed that the C. cavaleriei and Ricinus communis (Ricinus) were clustered into one clade with strong support values, indicating their closer relationship.