The complete chloroplast genome of Crateva unilocularis (Capparaceae)

Xin-Hua Zheng; Hua-Chao Duan; Shi-Min Li; Qiong Dong

doi:10.1080/23802359.2021.1878949

The complete chloroplast genome of Crateva unilocularis (Capparaceae)

Mitochondrial DNA B Resour. 2021 Mar 1;6(2):658-659. doi: 10.1080/23802359.2021.1878949.

Authors

Xin-Hua Zheng^{1

2}, Hua-Chao Duan^{1

2}, Shi-Min Li^{1

2}, Qiong Dong^{1

2}

Affiliations

¹ Key Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Southwest China, Kunming, China.
² Forestry College, Southwest Forestry University, Kunming, China.

Abstract

Crateva unilocularis is naturally distributed in Southern China, which is an elite natural tree with high edible and medicinal value. In this study, whole chloroplast (cp) genome of Crateva unilocularis was assembled and characterized on the basis of Illumina pair-end sequencing data. The complete cp genome was 156,417 bp in length, containing a large single-copy region (LSC) of 85,607 bp and a small single-copy region (SSC) of 18,164 bp, which were separated by a pair of 26,323 bp inverted repeat regions (IRs). The genome contained 128 genes, including 85 protein-coding genes, 35 tRNA genes, and 8 rRNA genes. The overall GC content is 36.32%, while the corresponding values of the LSC, SSC, and IR regions were 33.98, 29.45, and 42.48%, respectively. The maximum-likelihood phylogenetic analysis showed a strong sister relationship with Crateva tapia. These findings provide a foundation for further investigation of cp genome evolution in Crateva unilocularis and other higher plants.

Keywords: Crateva unilocularis; chloroplast genome; phylogenetic analysis.

Grants and funding

The study was supported by the National Natural Science Foundation of China [Grant No. 31260191], and the Scientific Research Fund of Yunnan Provincial Department of Education [Grant No. 2019Y0125].