Plastome-based phylogenomics resolves the placement of the sanguinolenta group in the spikemoss of lycophyte (Selaginellaceae)
文献类型：期刊论文
| 作者 | Zhang, Hong-Rui; Wei, Ran; Xiang, Qiao-Ping; Zhang, Xian-Chun
|
| 刊名 | MOLECULAR PHYLOGENETICS AND EVOLUTION
 |
| 出版日期 | 2020 |
| 卷号 | 147 |
| 关键词 | GC content Nucleotide substitution rate Phylogeny Plastome Sanguinolenta group |
| ISSN号 | 1055-7903 |
| DOI | 10.1016/j.ympev.2020.106788 |
| 文献子类 | Article |
| 英文摘要 | Selaginellaceae have been shown to be monophyletic in previous studies, and include only the single genus Selaginella. However, the two most recent classifications of the genus disagree in terms of the number of subgenera recognized, and the position of problematic clades such as the sanguinolenta group, which has been resolved in quite different positions in different studies. Here, we performed a plastid-genome based phylogenomic analysis of Selaginellaceae to address this problem. The sanguinolenta group, represented here by three species, was resolved as sister to the remaining members of subg. Stachygynandrum. Additionally, subg. Exaltatae, subg. Ericetorum, and subg. Gymnogynum in Glade A clustered into a well supported monophyletic Glade but with conflicting topology between subgenera inside, which is possibly attributed to the early divergence among them. We uncovered substantial variation in both synonymous (dS) and nonsynonymous (dN) substitution rate, and GC content in plastomes of Selaginellaceae. The values of dS, dN, and GC content were significantly higher than those of other lycophytes (Isoetaceae and Lycopodiaceae). We observed a significant positive correlation between the high GC content, and the elevated dS and dN rates. In addition, the dS and dN values inferred among branches of Selaginellaceae were extremely variable. Our data indicate that this unevenly distributed substitution rate likely reflected relaxed or intensified selection among different lineages, which is possibly related to the inconsistency of the subgeneric phylogenetic topologies of Selaginellaceae. |
| 学科主题 | Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity |
| 出版地 | SAN DIEGO |
| 电子版国际标准刊号 | 1095-9513 |
| WOS关键词 | CHLOROPLAST GENOME SEQUENCE ; PHYLOGENETIC-RELATIONSHIPS ; EXTREME ; GENE ; CLASSIFICATION ; RECONSTRUCTION ; EVOLUTION ; SELECTION ; ORIGIN ; PLANTS |
| WOS研究方向 | Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity |
| 语种 | 英语 |
| WOS记录号 | WOS:000527791400015 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31670205, 31770237] ; International Postdoc Exchange Fellowship Program [Y911RE1001] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/21797]  |
| 专题 | 植物研究所_系统与进化植物学研究中心_系统与进化植物学研究中心_学位论文 |
| 作者单位 | 1.Xiang, Qiao-Ping 2.[Zhang, Hong-Rui 3.Wei, Ran 4.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Hong-Rui,Wei, Ran,Xiang, Qiao-Ping,et al. Plastome-based phylogenomics resolves the placement of the sanguinolenta group in the spikemoss of lycophyte (Selaginellaceae)[J]. MOLECULAR PHYLOGENETICS AND EVOLUTION,2020,147. |
| APA | Zhang, Hong-Rui,Wei, Ran,Xiang, Qiao-Ping,&Zhang, Xian-Chun.(2020).Plastome-based phylogenomics resolves the placement of the sanguinolenta group in the spikemoss of lycophyte (Selaginellaceae).MOLECULAR PHYLOGENETICS AND EVOLUTION,147. |
| MLA | Zhang, Hong-Rui,et al."Plastome-based phylogenomics resolves the placement of the sanguinolenta group in the spikemoss of lycophyte (Selaginellaceae)".MOLECULAR PHYLOGENETICS AND EVOLUTION 147(2020). |
入库方式： OAI收割
来源：植物研究所
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