Analysis of unidirectional hybridization between supra-annual flowering species, Strobilanthes glandulifera, and annual flowering species, S.tashiroi

超一年生开花植物Strobilanthes mudulifera与一年生开花植物S.tashiroi之间的单向杂交分析

• 批准号: 20370032
• 负责人: MURATA Jin
• 金额: $ 11.9万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20370032/
• 关键词: イセハナビ属; キツネノマゴ科; 種間交雑; 一斉開花; 生活史; 花粉形態; 植物; 進化; 分類; 交雑; スズムシソウ属; 花粉; 沖縄; 植物相; ヒマラヤ; 分子系統; 日華植物区系; フィールド調査; 日華植物区糸

In the Motobu Peninsula of Okinawa Island, the present situation of Strobilanthes tashiroi, S.flexicaulis and their putative hybrids are observed and examined ecologically, morphologically and genetically. Ecologically, S.tashiroi and S.flexicaulis in the Motobu Peninsula are confirmed to be polycarpic perennial and monocarpic and periodical mass-flowering species, respectively. The putative hybrids, including F1, F2…and following back-cross generations are also confirmed to derive from hybridization between S.tashiroi and S.flexicaulis with the latter species as major pollen donor. As the pollinators were scarcely found in non-mass-flowering years, it is deduced that hybridization occurs only in the mass-flowering years when the flowers of S. flexicaulis are overwhelming so that the S.flexicaulis acts as major pollen donor in any level of hybridization. Isolation has not been established at least between the hybrids and S.flexicaulis.

本文对冲绳岛元部半岛上石球菊、柔球菊及其杂种植物的生态、形态和遗传学现状进行了观察和研究。在生态学上，motobuu半岛的s.t ashhiroi和s.f flexicaulis分别是多年生、单生和周期性大量开花的物种。包括F1、F2和之后的回交代在内的杂种也被证实是由s.t ashhiroi和s.t flexicaulis杂交而来，后者是主要的花粉供体。由于传粉媒介在非大花期几乎没有发现，因此推测杂交只发生在大花期，此时柔皮草的花朵数量非常多，因此在任何杂交水平下，柔皮草都是主要的花粉供体。至少在杂交种和弯曲曲球菌之间还没有建立分离。

项目成果

生活史の異なる植物種間における非対称な交雑

不同生活史植物物种之间的不对称杂交

• 发表时间: 2010
• 作者: 柿嶋聡;東馬哲雄;邑田仁
• 通讯作者: 邑田仁

Asymmetrical hybridization between monocarpic mass-flowering shrub and polycarpic perennial herb in Strobilanthes.

单果性大花灌木与多果性多年生草本球草的不对称杂交。

• 发表时间: 2011
• 作者: 柿嶋聡;邑田仁
• 通讯作者: 邑田仁

一斉開花一回繁殖型植物コダチスズムシソウと多回繁殖型植物オキナワスズムシソウの交雑現象の解析

同时开花、一次繁殖型植物“小立型紫草”与多重繁殖型植物“冲绳型紫草”的杂交现象分析

• 发表时间: 2010
• 作者: 柿嶋聡;東馬哲雄;邑田仁
• 通讯作者: 邑田仁