Complete chloroplast genome sequence and phylogenetic analysis of Magnolia pilocarpa, a highly ornamental species endemic in central China

Jiaojun Yu; Hongjin Dong; Jun Xiang; Yunli Xiao; Yuanping Fang

doi:10.1080/23802359.2020.1714511

Complete chloroplast genome sequence and phylogenetic analysis of Magnolia pilocarpa, a highly ornamental species endemic in central China

Mitochondrial DNA B Resour. 2020 Jan 20;5(1):720-722. doi: 10.1080/23802359.2020.1714511.

Authors

Jiaojun Yu^{1

2}, Hongjin Dong^{1

2}, Jun Xiang^{1

2}, Yunli Xiao^{1

2}, Yuanping Fang^{1

2}

Affiliations

¹ Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Huanggang Normal University, Huanggang, China.
² Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains, Huanggang, China.

Abstract

Magnolia pilocarpa Z. Z. Zhao et Z. W. Xie is a species with high horticultural and medicinal value, which found only in Dabie Mountain of central China. In this study, we sequenced, assembled and annotated the complete chloroplast (cp) genome of M. pilocarpa. The length of M. pilocarpa complete cp genome was 160,104 bp, with a typical quadripartite structure comprising a pair of inverted repeat regions (IRs; 26,591 bp), a large single copy region (LSC; 88,110 bp) and a small single copy region (SSC; 18,812 bp). The whole cp genome contained 129 unique genes, including 79 protein-coding genes (PCGs), 30 transfer RNA (tRNA) genes and four ribosomal RNA (rRNA) genes. The maximum-likelihood (ML) phylogenetic analysis indicated that M. pilocarpa was relatively closed to the M. denudata. This chloroplast genome would provide a valuable genetic resource for M. pilocarpa.

Keywords: Magnolia pilocarpa; Magnoliaceae; complete chloroplast genome; phylogeny.

Grants and funding

This study was financially supported by the Startup Foundation for Doctors of Huanggang Normal University [2042019020 to JJY and 2042019013 to HJD], the High-level Training Program of Huanggang Normal University [204201913203 to JJY and 204201913303 to HJD], and Foundation for Assessment and Comprehensive Utilization of Characteristic Biological resources in Dabie Mountains [4022019006].