Differences in sex expression and mating systems in three pollination morphs of Cimicifuga simplex,Plant Species Biology

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Differences in sex expression and mating systems in three pollination morphs of Cimicifuga simplex
Plant Species Biology ( IF 1.1 ) Pub Date : 2020-04-01 , DOI: 10.1111/1442-1984.12265
Tsubasa Toji ₁ , Takao Itino ₂

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Cimicifuga simplex (Ranunculaceae) has three genetically distinct pollination morphs. Here, we report that each of the three pollination morphs of C. simplex differs from the others with regard to sex expression and mating system: morph I consists mostly of ramets with hermaphroditic flowers and ramets with only female flowers, morph II consists of ramets with hermaphroditic flowers and ramets with hermaphroditic and male flowers, and morph III consists mostly of ramets with hermaphroditic flowers. A microsatellite analysis of seed DNA showed that morph III has a high self‐fertilization rate. Flowering season and flower visitor assemblages, which also differ among the three morphs, may influence the evolution and maintenance of the differences in sex expression and mating systems in the morphs.

中文翻译：

单纯升麻三种授粉形态的性别表达和交配系统差异

Cimicifuga simplex (毛茛科) 具有三种遗传上不同的授粉形态。在这里，我们报告了 C. simplex 的三种授粉形态中的每一种在性表达和交配系统方面都与其他形态不同：形态 I 主要由具有雌雄同体花的分株和仅具有雌花的分株组成，形态 II 由具有雌雄同体的花和具有雌雄同体和雄花的分株，而形态 III 主要由具有雌雄同体花的分株组成。种子 DNA 的微卫星分析表明，形态 III 具有较高的自体受精率。开花季节和花客组合，在三种变体中也不同，可能会影响变体中性别表达和交配系统差异的进化和维持。

更新日期：2020-04-01

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