Englund Markus, Pornpongrungrueng Pimwadee, Gustafsson Mats H G, Anderberg Arne A
Department of Botany, Stockholm University, SE-10691 Stockholm, Sweden.
Department of Phanerogamic Botany, Swedish Museum of Natural History, PO Box 50007, SE-10405 Stockholm, Sweden.
Cladistics. 2009 Aug;25(4):319-352. doi: 10.1111/j.1096-0031.2009.00256.x. Epub 2009 May 21.
Phylogenetic relationships in Inuleae subtribe Inulinae (Asteraceae) were investigated. DNA sequence data from three chloroplast regions (ndhF, trnL-F and psbA-trnH) and the nuclear ribosomal internal transcribed spacer (ITS) region were analysed separately and in combination using parsimony and Bayesian inference. A total of 163 ingroup taxa were included, of which 60 were sampled for all four markers. Conflicts between chloroplast and nuclear data were assessed using partitioned Bremer support (PBS). Rather than averaging PBS over several trees from constrained searches, individual trees were considered by evaluating PBS ranges. Criteria to be used in the detection of a significant conflict between data partitions are proposed. Three nodes in the total data tree were found to encompass significant conflict that could result from ancient hybridization. Neither of the large, heterogeneous and widespread genera Inula and Pulicaria is monophyletic. A monophyletic group ("the Inula complex") that comprises all species of Inula includes also Telekia, Carpesium, Chrysophthalmum, Rhanteriopsis, Amblyocarpum, and Pentanema sensu stricto. Two species of Pentanema were found to be closer to Blumea (including Blumeopsis and Merrittia) and Caesulia. The monophyletic "Pulicaria complex" includes all taxa with heteromorphic pappus. Within this group, Francoeuria is distinct from Pulicaria and merits recognition as a separate genus. © The Willi Hennig Society 2009.
对旋覆花亚族旋覆花属（菊科）的系统发育关系进行了研究。分别并结合使用简约法和贝叶斯推断法，分析了来自三个叶绿体区域（ndhF、trnL-F和psbA-trnH）以及核糖体DNA内转录间隔区（ITS）的DNA序列数据。共纳入了163个类群，其中60个对所有四个标记进行了取样。使用分区布雷默支持率（PBS）评估叶绿体数据和核数据之间的冲突。不是对来自受限搜索的几棵树的PBS进行平均，而是通过评估PBS范围来考虑单棵树。提出了用于检测数据分区之间显著冲突的标准。在总数据树中发现三个节点存在可能由古老杂交导致的显著冲突。旋覆花属和蚤草属这两个大型、异质且分布广泛的属都不是单系的。一个包含旋覆花属所有物种的单系类群（“旋覆花复合体”）还包括大吴风草属、天名精属、金盏菊属、拟鼠麴草属、绵毛果菊属和狭义的蟹甲草属。发现两种蟹甲草属植物与艾纳香属（包括拟艾纳香属和少花艾纳香属）和凯苏草属关系更近。单系的“蚤草复合体”包括所有具异形冠毛的类群。在这个类群中，薄鳞菊属与蚤草属不同，应被承认为一个独立的属。 © 威利·亨尼希协会2009年。
