期刊文献+

玉米性分化调控机制的研究进展 预览 被引量:4

Recent Advances in Mechanisms of Sex Differentiation in Maize ( Zea mays )
在线阅读 下载PDF
收藏 分享 导出
摘要 玉米是雌雄同株异花植物,成为研究植物性分化的重要模式植物。玉米雄花着生在顶生分枝的雄穗上,雌花着生在腋生的不分枝穗上。雌花和雄花发育前期,含有雌,雄蕊原基,表现为两性花发育特征,只是后期雄花中雌蕊和雌花中雄蕊分别退化败育。雌蕊和雄蕊退化分别与雌性化功能基因和雄性化基因作用有关。 Maize develops male and female flowers in different locations on the plant. Male flowers develop at the tip of the shoot in the tassel, and female flowers express on the ears, which terminate short branches. The development of male flowers in tassels and female flowers in ears is the result of selective arrest and abortion of the inappropriate organ primordia within a bisexual floral meristem. Genetics analysis has shown that stamen abortion and pistil abortion are under the control of feminizing genes and masculinizing genes. Biochemical and genetic evidence suggests that sexual organ identities in maize are orchestrated by two closely related C function genes, ZAG 1and ZMM 2. The presence of two C function genes, feminizing genes and masculinizing genes in sex determination, raises the possibility that these gene products may also cooperate to regulate programs of sexual differentiation. We present a hypothetical model to account for such cooperative interactions.
作者 华志明 Hua Zhiming (Department of Biology, Xiamen University, Xiamen 361005)
出处 《农业生物技术学报》 CAS CSCD 1998年第3期 293-299,共7页 Journal of Agricultural Biotechnology
基金 国际科学基金
关键词 玉米 性分化 C-功能基因 雌性化基因 雄性化基因 Zea mays sex determination C function genes
  • 相关文献

参考文献2

同被引文献89

引证文献4

二级引证文献19

投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈