The complete plastid genome of Hong Kong Orchid Tree, Bauhinia × blakeana Dunn (Leguminosae)

Shiran Gu; Qiang Lai; Qiubiao Zeng; Tieyao Tu; Dianxiang Zhang

doi:10.1080/23802359.2019.1674218

The complete plastid genome of Hong Kong Orchid Tree, Bauhinia × blakeana Dunn (Leguminosae)

Mitochondrial DNA B Resour. 2019 Oct 9;4(2):3454-3455. doi: 10.1080/23802359.2019.1674218.

Authors

Shiran Gu^{1

2}, Qiang Lai¹, Qiubiao Zeng^{3

1}, Tieyao Tu¹, Dianxiang Zhang¹

Affiliations

¹ Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China.
² University of Chinese Academy of Sciences, Beijing, China.
³ Guangxi University, Nanning, China.

Abstract

Bauhinia × blakeana Dunn, or the Hong Kong Orchid Tree, is a popular ornamental plant in the tropical and subtropical regions. In this study, we report and characterise the complete plastid genome of B. × blakeana in an effort to provide genomic resources for genetic utilization. The complete plastome is 156,100 bp in length and contains the typical quadripartite structure, including two inverted repeat (IR) regions of 25,847 bp, a large single-copy (LSC) region of 86,484 bp and a small single-copy (SSC) region of 17,922 bp. 126 genes are annotated, including 81 protein-coding genes, 37 transfer RNA genes, and eight ribosomal RNA genes. The phylogenetic analysis based on the plastomes from B. × blakeana and 11 previously reported species of Cercidoideae suggested a sister-relationship between B. × blakeana and B. acuminata L. with strong bootstrap support.

Keywords: Bauhinia; Fabaceae; chloroplast genome; legume family; phylogeny.