Niu Ying-Feng, Li Kai-Xiong, Liu Jin
Yunnan Institute of Tropical Crops, Xishuangbanna, China.
Mitochondrial DNA B Resour. 2020 Sep 16;5(3):3330-3332. doi: 10.1080/23802359.2020.1820394.
L. () is an important tropical fruit and medicinal plant. It is one of the easily found plants used traditionally in treating cancer. In many tropical countries, especially in Southeast Asia, is popular for its edible fruit and medicinal merits. In this study, the complete chloroplast genome of was sequenced, assembled, and annotated. The chloroplast genome of was found to be a double strand ring structure with the size of 196,038 bp that consists of four regions: a large single-copy region of 75,339 bp, a small single-copy region of 3105 bp, and two inverted repeat regions of 58,797 bp. The GC content of the whole chloroplast genome was 39.92%. It was found that 111 protein-coding genes, one Pseudogene, 38 tRNA genes, and eight rRNA genes were annotated in the chloroplast genome, and the total number of genes was 158. DNA sequences of the chloroplast genomes of 19 species which belonged to three families of Magnoliales order were analyzed and a phylogenetic tree was constructed. The result indicated that , , , and had a close phylogenetic relationship. The findings also provided abundant basic data for the genomics study of
L.（）是一种重要的热带水果和药用植物。它是传统上用于治疗癌症的常见植物之一。在许多热带国家，尤其是东南亚，因其可食用的果实和药用价值而广受欢迎。在本研究中，对（）的完整叶绿体基因组进行了测序、组装和注释。发现（）的叶绿体基因组为双链环状结构，大小为196,038 bp，由四个区域组成：一个75,339 bp的大单拷贝区域、一个3105 bp的小单拷贝区域和两个58,797 bp的反向重复区域。整个叶绿体基因组的GC含量为39.92%。发现在叶绿体基因组中注释了111个蛋白质编码基因、一个假基因、38个tRNA基因和8个rRNA基因，基因总数为158个。分析了木兰目三个科的19个物种的叶绿体基因组DNA序列并构建了系统发育树。结果表明，（）、（）、（）、（）和（）具有密切的系统发育关系。这些发现也为（）的基因组学研究提供了丰富的基础数据
