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| Polyploidy Index and Its Implications for the Evolution of Polyploids | |
| Wang, Jinpeng1,2,3; Qin, Jun4; Sun, Pengchuan1; Ma, Xuelian; Yu, Jigao1; Li, Yuxian1; Sun, Sangrong1; Lei, Tianyu1; Meng, Fanbo1; Wei, Chendan1; Liu, Xinyu1; Guo, He1; Liu, Xiaojian; Xia, Ruiyan; Li Wang1; Ge, Weina1; Song, Xiaoming1; Zhang, Lan1; Guo, Di1; Wang, Jinyu; Baol, Shoutong; Jiang, Shan; Feng, Yishan; Li, Xueping; Paterson, Andrew H.; Wang, Xiyin1 | |
| 2019 | |
| 发表期刊 | FRONTIERS IN GENETICS
 |
| 卷号 | 10 |
| 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. |
| 关键词 | polyploidy angiosperm P-index genomics bioinformatics |
| 学科领域 | Genetics & Heredity |
| DOI | 10.3389/fgene.2019.00807 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | GENOME SEQUENCE ; DIFFERENTIATION ; CLASSIFICATION ; SUBGENOMES ; PHYLOGENY ; INSIGHTS ; ANCIENT ; PLANTS ; RATES |
| WOS研究方向 | Genetics & Heredity |
| WOS记录号 | WOS:000485223300002 |
| 出版者 | FRONTIERS MEDIA SA |
| 文献子类 | Article |
| 出版地 | LAUSANNE |
| EISSN | 1664-8021 |
| 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 |
| 作者邮箱 | wangxiyin@vip.sina.com |
| 作品OA属性 | Green Published, gold |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | 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, Sch Life Sci, Tangshan, Peoples R China 2.North China Univ Sci & Technol, Ctr Genom & Computat Biol, Tangshan, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.Hebei Acad Agr & Forestry Sci, Cereal & Oil Crop Inst, Shijiazhuang, Hebei, Peoples R China 6.Paterson, Andrew H.] Univ Georgia, Plant Genome Mapping Lab, Athens, GA 30602 USA |
| 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). |
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