| 第一作者： | Hou, Meng |
|---|---|
| 英文第一作者： | Hou, Meng |
| 联系作者： | Zhao, Zhi-Gang |
| 英文联系作者： | Zhao, Zhi-Gang |
| 发表年度： | 2023 |
| 卷： | 16 |
| 摘要： | Through its role in regulating pollinator behavior, floral display size and nectar gradient within inflorescences may alter the extent of geitonogamy and thus female reproductive success in protandrous species. However, this has seldom been examined. By quantifying selfing rate, seed number and male donor number, we estimated the effects of floral display size, nectar gradient and their interactions on plant reproduction in protandrous Aconitum gymnandrum. At plant level, selfing rate and seed number increased with a larger floral display of both main and lateral inflorescences but reduced with a declining nectar gradient. The effects of floral display of the main inflorescence on selfing rate and seed number were altered by the nectar gradient and floral display of lateral inflorescences as shown by their interactions. Larger floral display of the main inflorescence reduced male donor diversity. At flower level, the selfing rate and the seed number varied among flower positions, in which bottom flowers had lower selfing rate and higher seed number than top flowers. The effects of floral traits on geitonogamous selfing rate and seed number were inconsistent among flower positions. Although low cost of geitonogamous selfing for reproduction was tested by hand-pollination, the selfing rate was negatively correlated with seed number and male donor number in open-pollinated population. Our results suggest the potential role of trade-off between geitonogamy cost and reproductive benefit in evolution of floral traits. The variation of selfing rate and reproductive success among flowers may alter the trade-off and thus complicate evolution of traits. |
| 刊物名称： | JOURNAL OF PLANT ECOLOGY |
| 参与作者： | Hou, M (Hou, Meng) [1] , [2] ; Zhao, ZG (Zhao, Zhi-Gang) [1] |
删除或更新信息，请邮件至freekaoyan#163.com(#换成@)
Effects of floral traits on geitonogamous selfing rates and reproductive success in a protandrous sp
本站小编 Free考研考试/2024-01-13
Effects of floral traits on geitonogamous selfing rates and reproductive success in a protandrous species
相关话题/
领限时大额优惠券,享本站正版考研考试资料!
优惠券领取后72小时内有效，10万种最新考研考试考证类电子打印资料任你选。涵盖全国500余所院校考研专业课、200多种职业资格考试、1100多种经典教材，产品类型包含电子书、题库、全套资料以及视频，无论您是考研复习、考证刷题，还是考前冲刺等，不同类型的产品可满足您学习上的不同需求。 ...考试优惠券 本站小编 Free壹佰分学习网 2022-09-19
