MITOGENOME ANNOUNCEMENTSCharacterization of the complete chloroplast genome of the Chinese endangered species Cymbidium iridioides D. Don

Abstract

Cymbidium iridioides D. Don 1852 is a Class I endangered species in China having important ornamental and breeding values. This study used Illumina high-throughput sequencing technology to sequence the complete chloroplast genome of C. iridioides. The genome features of C. iridioides and its phylogenetic relationships were determined. The complete chloroplast genome is 156,599 bp, containing a pair of 26,736 bp inverse duplication regions, a large 85,242 bp single-copy region, and a small 17,885 bp single-copy region. The entire genome contains 76 protein-coding genes, 37 tRNA genes, and 4 rRNA genes. A phylogenetic tree of 25 Orchidaceae species revealed that C. iridioides was grouped within Sect. Iridorchis and comprised a clade with Cymbidium tracyanum.

Keywords

• cymbidium iridioides
• chloroplast genome
• endangered species
• phylogenetic analysis