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| Sexual conflict in protandrous flowers and the evolution of gynodioecy | |
Wang,Hao ; Barrett,Spencer C. H.; Li,Xue-Yan; Niu,Yang; Duan,Yuan-Wen; Zhang,Zhi-Qiang; Li,Qing-Jun
| |
| 2021 | |
| Source Publication | EVOLUTION
 |
| ISSN | 0014-3820 |
| Volume | 75Issue:2Pages:278-293 |
| Abstract | Sexual interference between male and female function in hermaphrodite plants is reduced by protandry. In environments with insufficient pollinator service, prolongation of male function owing to limited pollen removal could restrict the duration of female function and lower seed production. We provide evidence that this form of sexual conflict has played a role in the spread of females in gynodioecious populations of Cyananthus delavayi in the pollen-limited environments in which this subalpine species occurs. Using field experiments involving artificial pollen removal from the strongly protandrous flowers of hermaphrodites, we demonstrated a trade-off between male- and female-phase duration with no influence on overall floral longevity. Pollen removal at the beginning of anthesis resulted in hermaphrodite seed production matching that of females. In contrast, restricted pollen removal increased the duration of male function at the expense of female function lowering maternal fertility compared to females. This pattern was evident in five populations with females experiencing a twofold average seed fertility advantage compared to hermaphrodites. Gynodioecy often appears to evolve from protandrous ancestors and pollen limitation is widespread in flowering plants suggesting that sexual conflict may play an unappreciated role in the evolution of this form of sexual dimorphism. |
| Keyword | Cyananthus dichogamy floral longevity pollen limitation sexual dimorphism sexual interference FLORAL LONGEVITY REPRODUCTIVE ASSURANCE POLLEN LIMITATION MALE-STERILITY SEED SET SELECTION POLLINATION ALPINE INTERFERENCE HERKOGAMY |
| DOI | 10.1111/evo.14113 |
| WOS ID | WOS:000588291200001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.kib.ac.cn/handle/151853/73034 |
| Collection | 中国科学院昆明植物研究所 |
| Affiliation | 1.[Wang, Hao 2.Li, Xue-Yan 3.Zhang, Zhi-Qiang 4.Yunnan Univ, Yunnan Key Lab Plant Reprod Adaptat & Evolutionar, Kunming 650500, Yunnan, Peoples R China 5.Yunnan Univ, Sch Ecol & Environm Sci, Lab Ecol & Evolutionary Biol, Kunming 650091, Yunnan, Peoples R China 6.[Barrett, Spencer C. H.] Univ Toronto, Dept Ecol & Evolutionary Biol, 25 Willcocks St, Toronto, ON M5S 3B2, Canada 7.[Niu, Yang 8.Chinese Acad Sci, Kunming Inst Bot, Kunming 650201, Yunnan, Peoples R China |
| Recommended Citation GB/T 7714 | Wang,Hao,Barrett,Spencer C. H.,Li,Xue-Yan,et al. Sexual conflict in protandrous flowers and the evolution of gynodioecy[J]. EVOLUTION,2021,75(2):278-293. |
| APA | Wang,Hao.,Barrett,Spencer C. H..,Li,Xue-Yan.,Niu,Yang.,Duan,Yuan-Wen.,...&Li,Qing-Jun.(2021).Sexual conflict in protandrous flowers and the evolution of gynodioecy.EVOLUTION,75(2),278-293. |
| MLA | Wang,Hao,et al."Sexual conflict in protandrous flowers and the evolution of gynodioecy".EVOLUTION 75.2(2021):278-293. |
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