Complete chloroplast genome sequence of tropical orchid Renanthera imschootiana

Abstract

Renanthera imschootiana Rolfe is an epiphyte of genus Renanthera in family Orchidaceae. R. imschootiana is a rare tropical orchid with high ornamental value. We determined its complete chloroplast genome sequence to better understand its relationship with other Orchidaceae species. The chloroplast genome of R. imschootiana has a length of 143,836 bp, which comprises a large single copy region of 83,356 bp, a small single copy region of 11,172 bp, and a pair of reverse repeat regions of 24,654 bp each. Its genome has a total GC content of 36.8% and contains 127 genes, including 82 protein-coding genes, 37 tRNA genes, and 8 rRNA genes. Maximum likelihood phylogenetic analysis showed that R. imschootiana is closely related to Vanda brunnea, Holcoglossum flavescens, and H. amesianum.

Keywords

• renanthera imschootiana
• chloroplast genome
• phylogenetic analysis