Hou Zhe, Jiang Zhengzhi, Wu Jincui, Shen Ping, Huang Changbing
College of Landscape Engineering, SuZhou Polytechnic Institute of Agriculture, Suzhou, Jiangsu, China.
Suzhou Huaguan Yuanchuang Horticultural Technology Co., Ltd., Suzhou, Jiangsu, China.
Mitochondrial DNA A DNA Mapp Seq Anal. 2025 Jan-Mar;35(1-2):54-65. doi: 10.1080/24701394.2025.2460826. Epub 2025 Feb 20.
var. , an important horticultural species, holds high ornamental value. To investigate the phylogenetic relationships and organelle genome data of var. and its related species, the organelle genomes were constructed and sequenced in this study. The complete mitochondrial genome consists of a linear DNA molecule with a length of 270,143 base pairs and contains 55 genes. The whole chloroplast genome harbors 131 annotated genes. There are 39 and 54 simple sequence repeats (SSRs) in the mitochondrial and chloroplast genomes of var. , respectively. The phylogenetic tree of the mitochondrial genome indicates that var. is related to . The codon usage biases of one mitochondrial gene and nine chloroplast genes in Rosaceae were affected by mutation, while those of other genes have undergone selection. Overall, our findings suggest that the information within the organelle genomes can be utilized for constructing molecular markers, conducting genetic evolution research, and interpreting the phylogenetics of plants. The results of this study will contribute to a more in - depth investigation of the population genetics and evolution of Rosaceae.
变种，一种重要的园艺物种，具有很高的观赏价值。为了研究变种及其相关物种的系统发育关系和细胞器基因组数据，本研究构建并测序了细胞器基因组。完整的线粒体基因组由一个长度为270,143个碱基对的线性DNA分子组成，包含55个基因。整个叶绿体基因组包含131个注释基因。变种的线粒体和叶绿体基因组中分别有39个和54个简单序列重复（SSR）。线粒体基因组的系统发育树表明变种与有关。蔷薇科中一个线粒体基因和九个叶绿体基因的密码子使用偏好受突变影响，而其他基因的密码子使用偏好则经历了选择。总体而言，我们的研究结果表明，细胞器基因组中的信息可用于构建分子标记、进行遗传进化研究以及解释植物的系统发育。本研究结果将有助于更深入地研究蔷薇科的群体遗传学和进化。
