Polyploidy Index and Its Implications for the Evolution of Polyploids
文献类型：期刊论文
| 作者 | Wang, Jinpeng1,4,6; Qin, Jun3; Sun, Pengchuan6; Ma, Xuelian; Yu, Jigao6; Li, Yuxian6; Sun, Sangrong6; Lei, Tianyu6; Meng, Fanbo6; Wei, Chendan6 |
| 刊名 | FRONTIERS IN GENETICS
 |
| 出版日期 | 2019 |
| 卷号 | 10 |
| 关键词 | polyploidy angiosperm P-index genomics bioinformatics |
| DOI | 10.3389/fgene.2019.00807 |
| 文献子类 | Article |
| 英文摘要 | Polyploidy has contributed to the divergence and domestication of plants; however, estimation of the relative roles that different types of polyploidy have played during evolution has been difficult. Unbalanced and balanced gene removal was previously related to allopolyploidies and autopolyploidies, respectively. Here, to infer the types of polyploidies and evaluate their evolutionary effects, we devised a statistic, the Polyploidy-index or P-index, to characterize the degree of divergence between subgenomes of a polyploidy, to find whether there has been a balanced or unbalanced gene removal from the homoeologous regions. Based on a P-index threshold of 0.3 that distinguishes between known or previously inferred allo- or autopolyploidies, we found that 87.5% of 24 angiosperm paleo-polyploidies were likely produced by allopolyploidizations, responsible for establishment of major tribes such as Poaceae and Fabaceae, and large groups such as monocots and eudicots. These findings suggest that >99.7% of plant genomes likely derived directly from allopolyploidies, with autopolyploidies responsible for the establishment of only a few small genera, including Glycine, Malus, and Populus, each containing tens of species. Overall, these findings show that polyploids with high divergence between subgenomes (presumably allopolyploids) established the major plant groups, possibly through secondary contact between previously isolated populations and hybrid vigor associated with their re-joining. |
| 学科主题 | Genetics & Heredity |
| 电子版国际标准刊号 | 1664-8021 |
| 出版地 | LAUSANNE |
| WOS关键词 | GENOME SEQUENCE ; DIFFERENTIATION ; CLASSIFICATION ; SUBGENOMES ; PHYLOGENY ; INSIGHTS ; ANCIENT ; PLANTS ; RATES |
| WOS研究方向 | Genetics & Heredity |
| 语种 | 英语 |
| 出版者 | FRONTIERS MEDIA SA |
| WOS记录号 | WOS:000485223300002 |
| 资助机构 | Ministry of Science and Technology of the People's Republic of ChinaMinistry of Science and Technology, China [2016YFD0101001] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31371282, 31510333, 31661143009] ; National Natural Science Foundation of Hebei Province [C2015209069, C2014209201] ; Tangshan Key Laboratory Project |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/19495]  |
| 专题 | 系统与进化植物学国家重点实验室 |
| 作者单位 | 1.North China Univ Sci & Technol, Ctr Genom & Computat Biol, Tangshan, Peoples R China 2.Paterson, Andrew H.] Univ Georgia, Plant Genome Mapping Lab, Athens, GA 30602 USA 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing, Peoples R China 5.Hebei Acad Agr & Forestry Sci, Cereal & Oil Crop Inst, Shijiazhuang, Hebei, Peoples R China 6.North China Univ Sci & Technol, Sch Life Sci, Tangshan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jinpeng,Qin, Jun,Sun, Pengchuan,et al. Polyploidy Index and Its Implications for the Evolution of Polyploids[J]. FRONTIERS IN GENETICS,2019,10. |
| APA | Wang, Jinpeng.,Qin, Jun.,Sun, Pengchuan.,Ma, Xuelian.,Yu, Jigao.,...&Wang, Xiyin.(2019).Polyploidy Index and Its Implications for the Evolution of Polyploids.FRONTIERS IN GENETICS,10. |
| MLA | Wang, Jinpeng,et al."Polyploidy Index and Its Implications for the Evolution of Polyploids".FRONTIERS IN GENETICS 10(2019). |
入库方式： OAI收割
来源：植物研究所
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