The complete chloroplast genome sequence of the Dioscorea esculenta (Lour.) Burkill (Dioscoreaceae)

Xin Chen; Lijuan Cai; Yu Zhang; Wenzheng Su; Bicong Li; Qinghong Zhou; Qianglong Zhu

doi:10.1080/23802359.2020.1832593

The complete chloroplast genome sequence of the Dioscorea esculenta (Lour.) Burkill (Dioscoreaceae)

Mitochondrial DNA B Resour. 2020 Nov 20;5(3):3804-3806. doi: 10.1080/23802359.2020.1832593.

Authors

Xin Chen¹, Lijuan Cai², Yu Zhang¹, Wenzheng Su¹, Bicong Li¹, Qinghong Zhou¹, Qianglong Zhu¹

Affiliations

¹ Department of Horticulture, College of Agronomy, Jiangxi Agricultural University, Nanchang, P.R. China.
² Nanchang Business College, Jiangxi Agricultural University, Nanchang, P.R. China.

Abstract

Dioscorea esculenta (Lour.) Burkill is an essential tuber crop with pharmacological effects in the family Dioscoreaceae. The complete chloroplast genome of D. esculenta was determined in this study. The total genome size is 153, 437 bp in length and demonstrates a typical quadripartite structure containing a large single copy (LSC, 83,628 bp) and a small single copy (SSC, 18,893 bp), separated by a pair of inverted repeats (IRa, IRb) of 25,458 bp. The GC content of the complete chloroplast genome sequence is 37.07%. A total of 131 genes were predicted including 86 protein-coding genes, 37 tRNA genes, and eight rRNA genes. Phylogenetic tree analysis of 25 species belonging to the genus Dioscorea indicated that D. esculenta and D. sansibarensis were clustered into one branch.

Keywords: Dioscorea esculenta (Lour.) Burkill; chloroplast genome; lesser yam.

Grants and funding

This work was funded by the Youth Science Foundation of Jiangxi Provincial Department of Education [GJJ180218], and the Construction Project of Root and Tuber Crops Industry and Technology System [JXARS-19-01].