Gu Yiyang, Yang Liying, Zhou Junqin, Xiao Zhun, Lu Mengqi, Zeng Yanling, Tan Xiaofeng
Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees, Ministry of Education, Central South University of Forestry and Technology, Changsha, China.
Academy of Camellia Oil Tree, Central South University of Forestry and Technology, Changsha, China.
Front Plant Sci. 2024 Sep 3;15:1396635. doi: 10.3389/fpls.2024.1396635. eCollection 2024.
is a kind of high-quality oil supply species. Its seeds contain rich unsaturated fatty acids and antioxidant active ingredients, which is a kind of high-quality edible oil. In this study, we used bioinformatics methods to decipher a hexaploid Camellia oil tree's mitochondrial (mt) genome based on second-generation sequencing data. A 709,596 bp circular map of mt genome was found for the first time. And 74 genes were annotated in the whole genome. Mt genomes of and three Theaceae species had regions with high similarity, including gene composition and gene sequence. At the same time, five conserved gene pairs were found in 20 species. In all of the mt genomes, most of genes existed in tandem pairs. In addition, the species classification result, which, according to the gene differences in tandem with nad5 genes, was consistent with the phylogenetic tree. These initial results provide a valuable basis for the further researches of and a reference for the systematic evolution of plant mt genomes.
是一种优质的油料供应物种。其种子含有丰富的不饱和脂肪酸和抗氧化活性成分，是一种优质食用油。在本研究中，我们基于二代测序数据，运用生物信息学方法解析了六倍体油茶的线粒体（mt）基因组。首次发现了一个709,596 bp的线粒体基因组环状图谱。全基因组共注释了74个基因。油茶和三个茶科物种的线粒体基因组有相似性较高的区域，包括基因组成和基因序列。同时，在20个物种中发现了五对保守基因对。在所有线粒体基因组中，大多数基因以串联对的形式存在。此外，根据与nad5基因串联的基因差异得出的物种分类结果与系统发育树一致。这些初步结果为油茶的进一步研究提供了有价值的依据，并为植物线粒体基因组的系统进化提供了参考。
