English
 
联系方式:

馆长:张奠湘
电话/传真:020-3725-2543
电子邮箱:dx-zhang@scbg.ac.cn

馆长助理:曾飞燕
电话/传真:020-3725-2692
     020-3725-2548
电子邮箱:zengfeiy@scbg.ac.cn

地址:广州市天河区兴科路723号
邮编:510650
 
 
首 页 | 标本馆介绍 | 前贤风范 | 研究团队 | 科研成果 | 最新进展 | 标本馆新闻 | 管理规范 | 领导关怀
  现在的位置:首页>最新进展  
Flower Heating Following Anthesis and the Evolution of Gall Midge Pollination in Schisandraceae
2014-07-27 | 编辑: | 【 】【打印 】【 关闭

Shi-Xiao Luo, Shu-Miaw Chaw, Dianxiang Zhang, and Susanne S. Renner. 2010 American Journal of Botany 97(7): 1220–1228

KEY RESULTS: At least two Chinese species of Illicium are exclusively pollinated by gall midges that use the flowers as brood sites (not for pollen feeding). Continuous monitoring of flower temperatures revealed that the highest temperatures were attained after the flowers ’ sexual functions were over, and experiments showed that post-anthetic warming benefited larval development, not fruit development. Midge larvae in flowers with trimmed tepals (and hence a lower temperature) died, but fruit set ratios remained unchanged. Based on the DNA phylogeny, gall midge pollination evolved from general fl y/beetle pollination several times in Schisandraceae, with some species adapted to flower-breeding midges, others to pollen-feeding midges.

 

版权所有:中国科学院华南植物园
网站管理员:张征、汤银珠