Characterization of the complete chloroplast genome of the endangered Chinese species Cymbidium lowianum (Rchb.f.) Rchb.f

Longjie Cheng; Yuying Wang; Yiran Zhao; Yefang Li; Fengmei He; Zhilin Li

doi:10.1080/23802359.2020.1815603

Characterization of the complete chloroplast genome of the endangered Chinese species Cymbidium lowianum (Rchb.f.) Rchb.f

Mitochondrial DNA B Resour. 2020 Sep 4;5(3):3318-3319. doi: 10.1080/23802359.2020.1815603.

Authors

Longjie Cheng¹, Yuying Wang¹, Yiran Zhao¹, Yefang Li¹, Fengmei He¹, Zhilin Li¹

Affiliation

¹ College of Horticulture and Landscape, Yunnan Agricultural University, Kunming, China.

Abstract

Cymbidium lowianum (Rchb.f.) Rchb.f. is a Class I endangered species in China with important ornamental, economic, and breeding value, especially wild C. lowianum. This study used Illumina high-throughput sequencing technologies to sequence and analyze the complete chloroplast genome of C. lowianum. The genome features of C. lowianum and the phylogenetic relationships among Orchidaceae species were reported and established. The complete chloroplast genome is 155,447 bp long, consisting of a pair of inverse duplication regions that are 26,710 bp long, a large single-copy region of 84,184 bp, and a small single-copy region of 17,843 bp. The entire genome contains 74 mRNA genes, 30 tRNA genes, and 4 rRNA genes. The phylogenetic tree of 24 Orchidaceae species revealed Cymbidium lowianum is more closely related to Cymbidium erythraeum.

Keywords: Cymbidium lowianum; chloroplast genome; endangered species; phylogenetic analysis.

Grants and funding

This work was supported by the Yunnan Province Major Project of China [grant number 2018BB010], Yunnan Province Basic Research Project of China [grant number 2018FB070], Open Fund project of Yunnan Key Laboratory of Flower Breeding of China [grant number FKL-201602], Key Laboratory Project of Education Department of Yunnan Province of China and Innovation Team of Universities Project of Education Department of Yunnan Province of China.