The complete chloroplast genome sequence of a vulnerable legume species Dalbergia tonkinensis prain in Vietnam

Changyoung Lee; Yong-In Kim; Soo-Yong Kim; Tran The Bach; Sangmi Eum; Nguyen Trung Thanh; Sangho Choi

doi:10.1080/23802359.2019.1641441

The complete chloroplast genome sequence of a vulnerable legume species Dalbergia tonkinensis prain in Vietnam

Mitochondrial DNA B Resour. 2019 Jul 17;4(2):2604-2605. doi: 10.1080/23802359.2019.1641441.

Authors

Changyoung Lee^{1

2}, Yong-In Kim³, Soo-Yong Kim¹, Tran The Bach⁴, Sangmi Eum¹, Nguyen Trung Thanh², Sangho Choi¹

Affiliations

¹ International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea.
² Department of Botany, VNU University of Science, Hanoi, Vietnam.
³ Multidisciplinary Genome Institute, Life Science Hall, Hallym University, Chuncheon, Republic of Korea.
⁴ Institute of Ecology and Biological Resources (IEBR), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam.

Abstract

Dalbergia tonkinensis is a critically vulnerable tree species that is distributed in Vietnam and Hainan Island of China. The complete chloroplast genome sequence of D. tonkinensis was characterized using Illumina pair-end sequencing. The cpDNA is 156,086 bp in length and contains a pair of 25,720 bp inverted repeats, one large single copy region of 85,761 bp, and one small single copy region of 18,885 bp. It contains 131 genes including 86 protein-coding genes, 36 tRNAs, eight rRNAs, and one pseudogene. The overall G + C content of the whole genome is 36.1%. Phylogenetic analysis based on 35 chloroplast genomes of Papilionoideae including Cercis glabra (as an outgroup) indicates that all the species of the Dalbergioids sensu lato formed a monophyletic clade and D. tonkinensis formed a sister relationship with the D. hainanensis and D. odorifera group.

Keywords: Dalbergia tonkinensis; chloroplast genome; phylogenetic analysis; vulnerable species.