Molecular evidence for natural hybridization between Ligularia nelumbifolia and Cremanthodium stenoglossum (Asteraceae, Senecioneae)
文献类型：期刊论文
| 作者 | Ning, Huai1,2; Pan, Yue-Zhi1 ; Gong, Xun1,3
|
| 刊名 | BOTANY
 |
| 出版日期 | 2019 |
| 卷号 | 97期号:1页码:53-69 |
| ISSN号 | 1916-2790 |
| 关键词 | natural hybridization Ligularia Cremanthodium cpDNA ITS |
| 英文摘要 | Natural hybridization occurred frequently in the sunflower family. To date, however, no study on natural hybridization involving in Ligularia and Cremanthodium has been reported. Here, we presented the molecular evidence for natural hybridization between Ligularia nelumbifolia (Bureau & Franch.) Hand.-Mazz. and Cremanthodium stenoglossum Ling & S.W.Liu. Four nuclear DNA regions were sequenced to test the natural hybridization hypothesis, and three chloroplast DNA regions were sequenced to determine the direction of hybridization. Analyses of the investigated DNA data suggested that all of the putative hybrid individuals were derived from hybridization between L. nelumbifolia and C. stenoglossum and that bidirectional hybridization occurred. Moreover, sympatric Ligularia tsangchanensis (Franch.) Hand.-Mazz. and Ligularia virgaurea (Maxim.) Mattf. ex Rehder & Kobuski were not apparently involved in the hybridization. Although NewHybrids analysis showed that all the putative hybrid individuals were F-1 class, a low frequency of backcrossing to C. stenoglossum might exist in the hybrid swarm. In such a case, hybrids might serve as a bridge facilitating gene flow between L. nelumbifolia and C. stenoglossum, and hybrid speciation is unlikely to happen for these hybrid individuals without asexual reproduction. Given the poorly resolved phylogenetic relationship between Ligularia and Cremanthodium, the occurrence of natural hybridization between L. nelumbifolia and C. stenoglossum might provide new insights into the recircumscription and redelimitation of these two genera. |
| 资助项目 | National Science Foundation of China[31470336] ; National Science Foundation of China[31600178] |
| 语种 | 英语 |
| 资助机构 | National Science Foundation of China |
| 源URL | [http://ir.kib.ac.cn/handle/151853/64439]  |
| 专题 | 昆明植物研究所_中国科学院东亚植物多样性与生物地理学重点实验室 |
| 通讯作者 | Pan, Yue-Zhi |
| 作者单位 | 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.132 Lanhei Rd, Kunming, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ning, Huai,Pan, Yue-Zhi,Gong, Xun. Molecular evidence for natural hybridization between Ligularia nelumbifolia and Cremanthodium stenoglossum (Asteraceae, Senecioneae)[J]. BOTANY,2019,97(1):53-69. |
| APA | Ning, Huai,Pan, Yue-Zhi,&Gong, Xun.(2019).Molecular evidence for natural hybridization between Ligularia nelumbifolia and Cremanthodium stenoglossum (Asteraceae, Senecioneae).BOTANY,97(1),53-69. |
| MLA | Ning, Huai,et al."Molecular evidence for natural hybridization between Ligularia nelumbifolia and Cremanthodium stenoglossum (Asteraceae, Senecioneae)".BOTANY 97.1(2019):53-69. |
入库方式： OAI收割
来源：昆明植物研究所
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