| 木犀科植物叶绿体基因组结构特征和系统发育关系 |
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| 引用本文： | 赵月梅,杨振艳,赵永平,李筱玲,赵志新,赵桂仿. 木犀科植物叶绿体基因组结构特征和系统发育关系[J]. 植物学报, 2019, 54(4): 441-454. DOI: 10.11983/CBB18191 |
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| 作者姓名： | 赵月梅 杨振艳 赵永平 李筱玲 赵志新 赵桂仿 |
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| 作者单位： | 1 商洛学院生物医药与食品工程学院, 商洛 7260002 中国科学院昆明植物研究所, 东亚植物多样性与生物地理学重点实验室, 昆明 6502013 西北大学生命科学学院, 西部资源生物与现代生物技术教育部重点实验室, 西安 710069 |
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| 基金项目： | 商洛市博士科技创新团队(SK2017-45);商洛学院高层次人才引进项目(17SKY029) |
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| 摘 要： | 木犀科11属19个种叶绿体基因组的一般特征和变异特征的比较分析显示, 结果表明, 该科叶绿体基因组大小为154-165 kb, 其差异主要是大单拷贝(LSC)长度的差异所致。Jasminum属3个物种的叶绿体基因组长度与其余物种有较大差异, 该属clpP基因内含子和accD基因丢失。共线性分析表明, Jasminum属3个物种多个基因出现基因重排现象, 倒位可能是重排的主要原因。Jasminum属在IRb/SSC和SSC/IRa边界的基因均与其它物种不同; 重复序列与SSR数量检测结果表明, Jasminum属与其余物种在数量及重复长度上差异较大。基于CDS数据构建的系统发育树表明, Abeliophyllum distichum和Forsythia suspensa为木犀科中较早分化的类群。
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| 关 键 词： | 木犀科 叶绿体基因组 结构特征 系统发育 |
| 收稿时间： | 2018-09-06 |
Chloroplast Genome Structural Characteristics and Phylogenetic Relationships of Oleaceae |
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| Yuemei Zhao,Zhenyan Yang,Yongping Zhao,Xiaoling Li,Zhixin Zhao,Guifang Zhao. Chloroplast Genome Structural Characteristics and Phylogenetic Relationships of Oleaceae[J]. Bulletin of Botany, 2019, 54(4): 441-454. DOI: 10.11983/CBB18191 |
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| Authors: | Yuemei Zhao Zhenyan Yang Yongping Zhao Xiaoling Li Zhixin Zhao Guifang Zhao |
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| Affiliation: | 1 College of Biopharmaceutical and Food Engineering, Shangluo University, Shangluo 726000, China2 Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China3 Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi’an 710069, China |
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| Abstract: | In this study, the chloroplast genomes from 19 species (11 genera) in Oleaceae were compared to reveal the general characteristics and structural variations. The chloroplast genome sizes in Oleaceae were 154-165 kb, and the differences were mainly caused by the length of large single-copy regions. The chloroplast genome sizes of 3 species from the genus Jasminum differed greatly from that for other species; in addition, the introns from the clpP and accD genes were lost in Jasminum. Synteny analyses showed several gene rearrangements in 3 Jasminum species that were probably caused by inversions. The boundary genes between IRb/small single copy (SSC) and SSC/IRa regions in 3 Jasminum species differed from others. Repeat sequences and simple sequence repeat detection demonstrated that Jasminum had significant differences in repeat number and repeat length as compared with other genera. On the basis of shared protein-coding genes among 19 species, Abeliophyllum distichum and Forsythia suspensa were the early-diverging clades in Oleaceae. |
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| Keywords: | Oleaceae chloroplast genomes structural characteristics phylogeny |
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