Wu Yuan-Mi, Mu Xian-Yun, Qin Yong-Hua
Laboratory of Systematic Evolution and Biogeography of Woody Plants, College of Ecology and Nature Conservation, Beijing Forestry University, Beijing, P. R. China.
Guangxi Forestry Inventory and Planning Institute, Nanning, P. R. China.
Mitochondrial DNA B Resour. 2023 Apr 10;8(4):479-483. doi: 10.1080/23802359.2023.2196359. eCollection 2023.
Trees of are important components of subtropical and tropical forests in South-eastern Asia with great ecological and economic values. However, phylogenetic relationships within Engelhardioideae (Juglandaceae) remains obscure. In this study, we report the first complete chloroplast genome sequences of , Chen, a rare species endemic in southern China. Its complete chloroplast genome is 161,574 bp in length, with a typical quadripartite structure that includes a large single-copy region of 91,158 bp, a small single-copy region of 18,790 bp, and its GC content is 35.8%. A total of 128 genes were identified, including 83 protein-coding genes, 37 tRNA genes, and 8 rRNA genes. Furthermore, a phylogenetic tree of Juglandaceae was constructed based the complete chloroplast genome sequence, which strongly support the three-subfamily classification system in Juglandaceae, and was resolved sister to two species. This study provides valuable genomic information for the species identification and phylogenetic study of Juglandaceae.
[该植物名称]树是东南亚亚热带和热带森林的重要组成部分，具有重要的生态和经济价值。然而，胡桃科黄杞亚科内部的系统发育关系仍不清楚。在本研究中，我们报道了中国南方特有的珍稀物种——陈氏[该植物名称]的首个完整叶绿体基因组序列。其完整叶绿体基因组长度为161,574 bp，具有典型的四分体结构，包括一个91,158 bp的大单拷贝区域、一个18,790 bp的小单拷贝区域，其GC含量为35.8%。共鉴定出128个基因，包括83个蛋白质编码基因、37个tRNA基因和8个rRNA基因。此外，基于完整叶绿体基因组序列构建了胡桃科的系统发育树，有力地支持了胡桃科的三亚科分类系统，并且[该植物名称]被确定为与两个[相关植物名称]物种的姐妹关系。本研究为胡桃科的物种鉴定和系统发育研究提供了有价值的基因组信息。
