对Kalanchoe (Crassulaceae) 属的新遗传学框架,以及对低碳物质分类的影响
Seraina E Rodewald1, David-Paul Klein2, Ronen Shtein3
1Prinzessin Therese von Bayern-Lehrstuhl für Systematik, Biodiversität & Evolution der Pflanzen, Ludwig-Maximilians-Universität München, Menzinger Str. 67, 80638 München, Germany.
Annals of botany
|January 18, 2025
概括
这项研究通过遗传学改进了Kalanchoe的分类,揭示了马达加斯加的起源和单一的叶子球的进化. 这些发现支持了一些当前的分类,同时提出了进一步分类学研究的领域.
科学领域:
- * 植物科学 植物科学
- * 进化生物学 进化生物学
- * 分类学 * 分类学
背景情况:
- *Kalanchoe是Crassulaceae的一种多样化属,在园艺,CAM光合作用研究和传统医学方面具有重要意义.
- *Kalanchoe的低基分类,特别是K.亚基. 布里奥菲勒姆和K.亚属. 基奇尼亚,已经争论了几个世纪.
- * 鉴于其多样性和生态作用,了解Kalanchoe的进化历史和分类学至关重要.
研究的目的:
- * 为了生成Kalanchoe sensu lato (s.l. ) 的情况.
- * 评估Kalanchoe属的现有亚细菌分类系统.
- * 为未来研究卡兰科的进化和生理学提供一个遗传学框架.
主要方法:
- *使用ddRAD测序对Kalanchoe进行遗传树重建.
- *包括70%的公认分类和五个子属中的四个.
- *分析遗传数据以推断进化关系.
主要成果:
- *确定了四个得到良好支持的分类,部分与当前的亚属分类保持一致.
- * 卡兰科亚亚属 * 卡兰科亚属 卡洛菲吉亚被认为是其余属的姐妹.
- * 强烈支持的非洲大陆K. subg.的一个分类. 卡兰乔是K.subg.的妹妹. 布里奥菲勒姆,它们一起是主要来自K. subg.的一个分类的姐妹. 基奇尼亚和K.部门. 青春期的人. pubescentes.
结论:
- *目前的Kalanchoe亚属分类部分支持,但需要改进.
- * 遗传学分析表明马达加斯加人起源,一次传播到非洲大陆,随后传播.
- * 叶球的形成只在K. subg.的一个特定类中进化过一次. 布里奥菲勒姆 (Bryophyllum) 是一种植物.
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