Natural Hybrid Origin of the Controversial Species Clematis x pinnata (Ranunculaceae) Based on Multidisciplinary Evidence
文献类型：期刊论文
| 作者 | Lyu, Rudan; He, Jian; Luo, Yike; Lin, Lele; Yao, Min; Cheng, Jin5; Xie, Lei; Pei, Linying1; Yan, Shuangxi4; Li, Liangqian3 |
| 刊名 | FRONTIERS IN PLANT SCIENCE
 |
| 出版日期 | 2021 |
| 卷号 | 12 |
| 关键词 | Clematis homoploid hybridization morphology niche modeling phylogenomic analysis species status |
| ISSN号 | 1664-462X |
| DOI | 10.3389/fpls.2021.745988 |
| 文献子类 | Article |
| 英文摘要 | Interspecific hybridization is common and has often been viewed as a driving force of plant diversity. However, it raises taxonomic problems and thus impacts biodiversity estimation and biological conservation. Although previous molecular phylogenetic studies suggested that interspecific hybridization may be rather common in Clematis, and artificial hybridization has been widely applied to produce new Clematis cultivars for nearly two centuries, the issue of natural hybridization of Clematis has never been addressed in detail. In this study, we tested the hybrid origin of a mesophytic and cold-adapted vine species, Clematis pinnata, which is a rare and taxonomically controversial taxon endemic to northern China. Using field investigations, flow cytometry (FCM), phylogenomic analysis, morphological statistics, and niche modeling, we tested hybrid origin and species status of C. pinnata. The FCM results showed that all the tested species were homoploid (2n = 16). Phylonet and HyDe analyses based on transcriptome data showed the hybrid origins of C. x pinnata from either C. brevicaudata x C. heracleifolia or C. brevicaudata x C. tubulosa. The plastome phylogeny depicted that C. x pinnata in different sampling sites originated by different hybridization events. Morphological analysis showed intermediacy of C. x pinnata between its putative parental species in many qualitative and quantitative characters. Niche modeling results suggested that C. x pinnata had not been adapted to a novel ecological niche independent of its putative parents. These findings demonstrated that plants of C. x pinnata did not formed a self-evolved clade and should not be treated as a species. The present study also suggests that interspecific hybridization is a common mechanism in Clematis to generate diversity and variation, and it may play an important role in the evolution and diversification of this genus. Our study implies that morphological diversity caused by natural hybridization may overstate the real species diversity in Clematis. |
| 学科主题 | Plant Sciences |
| 出版地 | LAUSANNE |
| WOS关键词 | PHYLOGENETIC ANALYSIS ; CD-HIT ; HYBRIDIZATION ; SPECIATION ; DIVERSIFICATION ; RECONSTRUCTION ; GENERATION ; RESOLUTION ; PREDICTION ; EVOLUTION |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000713440000001 |
| 出版者 | FRONTIERS MEDIA SA |
| 资助机构 | Beijing Natural Science Foundation [5182016] ; National Natural Science Foundation of China [31670207] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/26797]  |
| 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.Beijing Forestry Univ, Coll Biol Sci & Technol, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Bot, Beijing, Peoples R China 3.Henan Agr Univ, Coll Landscape Architecture & Art, Zhengzhou, Peoples R China 4.Beijing Forestry Univ Forest Sci Co Ltd, Beijing Engn Res Ctr Landscape Plant, Beijing, Peoples R China 5.Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lyu, Rudan,He, Jian,Luo, Yike,et al. Natural Hybrid Origin of the Controversial Species Clematis x pinnata (Ranunculaceae) Based on Multidisciplinary Evidence[J]. FRONTIERS IN PLANT SCIENCE,2021,12. |
| APA | Lyu, Rudan.,He, Jian.,Luo, Yike.,Lin, Lele.,Yao, Min.,...&Li, Liangqian.(2021).Natural Hybrid Origin of the Controversial Species Clematis x pinnata (Ranunculaceae) Based on Multidisciplinary Evidence.FRONTIERS IN PLANT SCIENCE,12. |
| MLA | Lyu, Rudan,et al."Natural Hybrid Origin of the Controversial Species Clematis x pinnata (Ranunculaceae) Based on Multidisciplinary Evidence".FRONTIERS IN PLANT SCIENCE 12(2021). |
入库方式： OAI收割
来源：植物研究所
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