Department of Plant Sciences, University of Cambridge, CB2 3EA, UK;
Am J Bot. 2004 Mar;91(3):490-8. doi: 10.3732/ajb.91.3.490.
The chloroplast trnL-F region was used as an independent data set for phylogenetic analysis of 118 aroid taxa. We investigated the intergeneric relationships of subfamily Monsteroideae (Araceae) and used this as a basis for an interspecific phylogenetic study of Rhaphidophora Hassk., the largest genus of the Monsteroideae. Results of the molecular tree were useful for inferring subfamilial and tribal circumscription and evolution in Araceae. Our results show that family Araceae consists of five clades that correspond to the subfamilies traditionally recognized. Starting from the most basal clade, these correspond to subfamilies Gymnostachydoideae and Orontioideae (proto aroids), with Lemna sp. (Lemnaceae) embedded in the Araceae and sister to the true aroids consisting of Pothoideae sister to Monsteroideae, immediately sister to Lasioideae and Aroideae. There is less agreement with existing tribal classifications. Complex relationships exist between members of the Monsteroideae. Our results show that Rhaphidophora and Epipremnum are paraphyletic with species of Rhaphidophora sampled, forming three informal groups with other genera of the Monstereae. Phylogenetic results may be used to suggest taxonomic changes to the current systematics of the monsteroids.
叶绿体 trnL-F 区被用作 118 个天南星科分类群系统发育分析的独立数据集。我们研究了天南星科（天南星科）内亚科 Monsteroideae 的属间关系，并以此为基础对 Rhaphidophora Hassk. 进行了种间系统发育研究，Rhaphidophora Hassk. 是 Monsteroideae 中最大的属。分子树的结果有助于推断天南星科的亚科和族的界限和进化。我们的结果表明，天南星科由五个分支组成，与传统上公认的亚科相对应。从最基部的分支开始，它们对应于 Gymnostachydoideae 和 Orontioideae（原始天南星科），其中嵌入的浮萍科（浮萍科）与真正的天南星科相对应，由 Pothoideae 与 Monsteroideae 姐妹，立即与 Lasioideae 和 Aroideae 姐妹。与现有族分类的一致性较低。Monsteroideae 成员之间存在复杂的关系。我们的结果表明，Rhaphidophora 和 Epipremnum 是多系的，与采样的 Rhaphidophora 物种形成三个非正式的组，与其他 Monstereae 属形成组。系统发育结果可用于建议对当前怪物系统分类学进行分类学改变。
