Characterization of the complete chloroplast genome of Trailliaedoxa gracilis (Rubiaceae)

Fengxiao Tan; Weixi Li; Jiaru Lü; Chengruo Pei; Qingwei Li; Youxin Jia; Jianwu Wang

doi:10.1080/23802359.2022.2155491

Characterization of the complete chloroplast genome of Trailliaedoxa gracilis (Rubiaceae)

Mitochondrial DNA B Resour. 2023 Jan 1;8(1):1-3. doi: 10.1080/23802359.2022.2155491. eCollection 2023.

Authors

Fengxiao Tan^{1

2}, Weixi Li³, Jiaru Lü⁴, Chengruo Pei¹, Qingwei Li¹, Youxin Jia¹, Jianwu Wang^{1

2}

Affiliations

¹ College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China.
² Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou, China.
³ School of Life Sciences, Sun Yat-sen University, Guangzhou, China.
⁴ College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China.

Abstract

Trailliaedoxa gracilis (Rubiaceae) is a Chinese endemic monotypic genus distributed in southwestern China. This study reported the complete chloroplast genome of T. gracilis assembled from Illumina sequencing reads. The chloroplast genome size is 152,407 bp, containing a single large copy (LSC) region of 82,957 bp, a short single copy (SSC) region of 17,936 bp, and a pair of inverted repeats (IRs) of 25,757 bp. A total of 127 genes were found, including 82 protein-coding genes, 37 tRNA genes, and eight rRNA genes. A phylogenetic analysis using the maximum likelihood algorithm revealed that T. gracilis belonged to the subfamily Ixoroideae and had the closest relationship with Scyphiphora hydrophyllacea.

Keywords: Chloroplast genome; Trailliaedoxa gracilis; endemic species; phylogenomic analysis; vulnerable species.

Grants and funding

This project was supported by grants from the National Natural Science Foundation of China [31200466], and the Natural Science Foundation of Guangdong Province, China [2017A030313189, 2022A1515012015].