Characterization of the complete chloroplast genome of Korean endemic, Habenaria cruciformis (Orchidaceae)

摘要

Habenaria cruciformis (Orchidaceae), endemic to South Korea, is a perennial herb and its local population sizes are declined because of the destruction caused by human activity and the invasion of exotic species in their habitats. Here, we report the complete chloroplast (cp) genome sequence of H. cruciformis , which will provide valuable information for its biological conservation and future studies for the cp genome evolution of endemic plants on the Korean Peninsula. The cp genome of H. cruciformis is 155,708?bp in length, containing a large single-copy region of 85,131?bp and a small single-copy region of 17,659?bp which are separated by a pair of inverted repeats of 26,459?bp. The H. cruciformis cp genome encodes 131 genes, of which 113 are unique, including 79 protein-coding genes, 30 tRNA genes, and 4 rRNA genes. The overall GC content is 36.6%, which is consistent with the Habenaria species previously reported. Our phylogenomic analyses identified the sister relationship between H. cruciformis and H. linearfolia in the genus.