Paleopolyploidies and Genomic Fractionation in Major Eudicot Clades
文献类型：期刊论文
| 作者 | Teng, Jia1; Wang, Jianyu1; Zhang, Lan1; Wei, Chendan1; Shen, Shaoqi1; Xiao, Qimeng1; Yue, Yuanshuai1; Hao, Yanan1; Ge, Weina1; Wang, Jinpeng1,3 |
| 刊名 | FRONTIERS IN PLANT SCIENCE
 |
| 出版日期 | 2022 |
| 卷号 | 13 |
| 关键词 | Aquilegia coerulea Nelumbo nucifera Vitis vinifera hierarchical alignment gene colinearity polyploidization |
| ISSN号 | 1664-462X |
| DOI | 10.3389/fpls.2022.883140 |
| 文献子类 | Article |
| 英文摘要 | Eudicots account for ~75% of living angiosperms, containing important food and energy crops. Recently, high-quality genome sequences of several eudicots including Aquilegia coerulea and Nelumbo nucifera have become available, providing an opportunity to investigate the early evolutionary characteristics of eudicots. We performed genomic hierarchical and event-related alignments to infer homology within and between representative species of eudicots. The results provide strong evidence for multiple independent polyploidization events during the early diversification of eudicots, three of which are likely to be allopolyploids: The core eudicot-common hexaploidy (ECH), Nelumbo-specific tetraploidy (NST), and Ranunculales-common tetraploidy (RCT). Using different genomes as references, we constructed genomic alignment to list the orthologous and paralogous genes produced by polyploidization and speciation. This could provide a fundamental framework for studying other eudicot genomes and gene(s) evolution. Further, we revealed significantly divergent evolutionary rates among these species. By performing evolutionary rate correction, we dated RCT to be ~118-134 million years ago (Mya), after Ranunculales diverged with core eudicots at ~123-139 Mya. Moreover, we characterized genomic fractionation resulting from gene loss and retention after polyploidizations. Notably, we revealed a high degree of divergence between subgenomes. In particular, synonymous nucleotide substitutions at synonymous sites (Ks) and phylogenomic analyses implied that A. coerulea might provide the subgenome(s) for the gamma-hexaploid hybridization. |
| 学科主题 | Plant Sciences |
| 出版地 | LAUSANNE |
| WOS关键词 | EVOLUTIONARY SIGNIFICANCE ; PHYLOGENETIC ANALYSIS ; POLYPLOIDY ; ANCIENT ; SEQUENCE ; GENES ; DIVERSIFICATION ; DUPLICATION ; DIVERGENCE ; MECHANISMS |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000810934700001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/28884]  |
| 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.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing, Peoples R China 2.North China Univ Sci & Technol, Ctr Genom & Computat Biol, Dept Bioinformat, Tangshan, Peoples R China 3.North China Univ Sci & Technol, Sch Life Sci, Dept Bioinformat, Tangshan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Teng, Jia,Wang, Jianyu,Zhang, Lan,et al. Paleopolyploidies and Genomic Fractionation in Major Eudicot Clades[J]. FRONTIERS IN PLANT SCIENCE,2022,13. |
| APA | Teng, Jia.,Wang, Jianyu.,Zhang, Lan.,Wei, Chendan.,Shen, Shaoqi.,...&Wang, Jinpeng.(2022).Paleopolyploidies and Genomic Fractionation in Major Eudicot Clades.FRONTIERS IN PLANT SCIENCE,13. |
| MLA | Teng, Jia,et al."Paleopolyploidies and Genomic Fractionation in Major Eudicot Clades".FRONTIERS IN PLANT SCIENCE 13(2022). |
入库方式： OAI收割
来源：植物研究所
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