Nectarless flowers with deep corolla tubes in Pedicularis: does long pistil length provide an arena for male competition?
文献类型：期刊论文
| 作者 | Yang, Chun-Feng; Wang, Qing-Feng |
| 刊名 | BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
 |
| 出版日期 | 2015-11-01 |
| 卷号 | 179期号:3页码:526-532 |
| 关键词 | lousewort mate choice nectarless flower Pedicularis siphonantha pollen competition pollination efficiency |
| ISSN号 | 0024-4074 |
| DOI | 10.1111/boj.12331 |
| 英文摘要 | Pollinator-mediated selection does not seem to have a direct influence on the evolution of a long corolla tube in a nectarless flower. We hypothesized that the long pistil length of the nectarless flower with a deep corolla tube provided an opportunity for male competition. Pedicularis siphonantha, a nectarless and partially self-incompatible lousewort with substantial variation in corolla tube length, was used to test the hypothesis. We tested whether and how corolla tube length affected seed production per capsule and seed germination rate with different pollination treatments. Flowers were hand-pollinated with pollen from one self donor and one outcross donor and mixed pollen grains consisting of equal amounts from the two donor types, respectively. Additionally, seeds from open-pollinated flowers with different corolla tube lengths were collected separately for measurement of germination rate. Pollination treatment and corolla tube length significantly affected number of seeds per capsule. Moreover, a significant positive relationship between seeds per capsule and corolla tube length was found when mixed hand pollination was conducted. Seeds of self hand-pollinated flowers had a lower germination rate than those from outcross-pollinated flowers. Under open pollination, seeds from flowers with longer corolla tubes tended to have higher germination rate. In P. siphonantha, outcross pollen may have a higher probability of contributing to the next generation when transferred to flowers with longer corolla tubes. The pistil length, therefore, should be seen as a female choice mechanism, which provides an arena for male-to-male competition. (C) 2015 The Linnean Society of London. |
| 资助项目 | National Natural Science Foundation of China[30970209] |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000364530100013 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/184]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Yang, Chun-Feng |
| 作者单位 | Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Chun-Feng,Wang, Qing-Feng. Nectarless flowers with deep corolla tubes in Pedicularis: does long pistil length provide an arena for male competition?[J]. BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,2015,179(3):526-532. |
| APA | Yang, Chun-Feng,&Wang, Qing-Feng.(2015).Nectarless flowers with deep corolla tubes in Pedicularis: does long pistil length provide an arena for male competition?.BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,179(3),526-532. |
| MLA | Yang, Chun-Feng,et al."Nectarless flowers with deep corolla tubes in Pedicularis: does long pistil length provide an arena for male competition?".BOTANICAL JOURNAL OF THE LINNEAN SOCIETY 179.3(2015):526-532. |
入库方式： OAI收割
来源：武汉植物园
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