Abstract

Lirianthe hodgsonii is a tree species of Magnoliaceae as least concern. In the present paper, the complete chloroplast genome (cpDNA) and basic annotated information of L. hodgsonii were reported and its phylogenetic relationship with other species in Magnoliaceae was analyzed. The size of its complete cpDNA is 159,693 bp, with a typical quadripartite structure comprising a pair of inverted repeat (IR) regions of 26,546 bp, a large single-copy (LSC) region of 87,848 bp and a small single-copy (SSC) region of 18,753 bp. The genome contains 131 unique genes, including 86 protein-coding genes, 37 tRNA genes, and 8 rRNA genes. The phylogenetic analysis showed that L. hodgsonii is affinal to Lirianthe bidoupensis and they form a monophyletic group with other seven Lirianthe species. This Lirianthe clade is sister to the Dugandiodendron and Talauma clade with high support. All genera mentioned in this analysis are monophyletic under the system of Magnoliaceae by Sima and Lu.

摘要

连翘（Lirianthe hodgsonii）是木兰科的一种树种，最不用担心。在本文件中，完全叶绿体基因组（叶绿体）和基本注释信息L. hodgsonii报道并分析木兰科与其他物种的种系发生的关系。其完整cpDNA的大小为159,693 bp，典型的四方结构包括一对26,546 bp的反向重复（IR）区，87,848 bp的大单拷贝（LSC）区和一个小单拷贝（SSC） 18,753 bp的区域。该基因组包含131个独特基因，包括86个蛋白质编码基因，37个tRNA基因和8个rRNA基因。系统发育分析表明，L. hodgsonii是姻亲到Lirianthe bidoupensis它们与其他7个鸢尾科植物组成一个单系群。这Lirianthe进化是姐姐的Dugandiodendron和盖裂木属分支具有较高的支持。该分析中提到的所有属在Sima和Lu的木兰科系统下都是单系的。