Flower biology and molecular systematics in African Marantaceae

在提交赠款的第三年，将完成非洲马兰科的系统发育分析，包括时间方面的分析。将完成对加蓬野外采集的花生态数据的评价，完成形态检查，并对这三个数据集的复杂性进行分析和讨论，重点是非洲马兰科的辐射。应达到以下目标：•完成系统发育树和分子钟的测试，以确定物种形成事件的日期。•完成非洲Marantaceae植物多样性的比较分析，包括花柱张力和花粉向花柱凹处转移过程中花的协同作用的澄清，以及基于花形态、花生态测量和观察到的植物-传粉者相互作用的授粉综合征的建立。•通过在分子树上“绘制”选定的性状，重建花的多样性进化，特别是花柱运动。•加蓬马兰科四新种的分类学描述

In the submitted third year of the grant the phylogenetic analysis of the African Marantaceae will be finalized including a temporal dimension. The evaluation of the flower ecological data from the field work in Gabon will be finished, the morphological examination will be completed and these three datasets will be analysed and discussed in their complexity focusing on the radiation of the African Marantaceae. The following aims shall be reached:• Completion of the phylogenetic tree and testing of a molecular clock to date speciation events.• Completion of the comparative analysis of floral diversity in the African Marantaceae including theo clarification of floral synorganisation during the setting up of the style tension and pollen transfer onto the stylar depression in the bud ando establishment of pollination syndromes based on flower morphology, flower-ecological measurements and observed plant-pollinator interactions.• Reconstruction of the evolution of floral diversity and in particular of the style movement by 'mapping' selected characters on the molecular tree.• Taxonomical description of four new Marantaceae species from Gabon