Construction of the phylogenetic tree

We constructed the meta-tree of plants from trees stored in Phylomatic (Webb & Donoghue 2005) and using the R package taxize (Chamberlain & Szöcs 2013). To resolve relationships not defined by Phylomatic for Muehlenbeckia and Phoradendron genera, and for the Myrsinaceae family, we used information from the webpage of the Missouri Botanical Garden (http://tropicos.org/). Phylogenetic relationships among Solanaceae (Solanum, Salpichroa, Vassobia, Dunalia, Eriolarynx and Iochroma) were resolved using trees from Levin, Watson & Bohs (2005), Bohs (2007), Weese & Bohs (2007), Olmstead et al. (2008) and Särkinen et al. (2013). Phylogenetic relationships among Celtidaceae, Myrtaceae and Rosaceae were resolved using tree from Song et al. (2001), Lucas et al (2007), and Potter et al. (2007), respectively.本研究结合存储于Phylomatic（Webb与Donoghue, 2005）的系统发育树与R语言扩展包taxize（Chamberlain与Szöcs, 2013），构建了植物元系统发育树。针对Phylomatic未明确界定的Muehlenbeckia属、Phoradendron属以及紫金牛科（Myrsinaceae）的系统发育关系，本研究参考了密苏里植物园官网（http://tropicos.org/）的相关数据。茄科（Solanaceae）涵盖茄属（Solanum）、Salpichroa属、Vassobia属、Dunalia属、Eriolarynx属与Iochroma属，研究利用Levin、Watson与Bohs（2005）、Bohs（2007）、Weese与Bohs（2007）、Olmstead等（2008）及Särkinen等（2013）发表的系统发育树，解析了该科类群间的系统发育关系。榆科（Celtidaceae）、桃金娘科（Myrtaceae）与蔷薇科（Rosaceae）的类群间系统发育关系，则分别通过参考Song等（2001）、Lucas等（2007）及Potter等（2007）的系统发育树得以解析。