A MOLECULAR PHYLOGENY AND CLASSIFICATION OF BIGNONIACEAE
A MOLECULAR PHYLOGENY AND CLASSIFICATION OF BIGNONIACEAE
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DOI：
10.3732/ajb.0900004
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发表时间：
2009-09-01
影响因子：
3
通讯作者：
Eckert, Andrew J.
中科院分区：
文献类型：
--
作者：
Olmstead, Richard G.;Zjhra, Michelle L.;Eckert, Andrew J.
紫葳科是木本、乔木、灌木和藤本植物，在世界上所有热带植物区系中发现，在温带地区较少代表。对紫菀科的叶绿体序列（rbcL、ndhF、trnL-F）进行系统发育分析，以推断紫菀科的进化关系并修订其分类。八个分支被认为是部落（Bignonieae，Catalpeae，Coleeae，Crescentieae，Jacarandeae，Oroxyleae，Tecomeae，Tourrettieae）;其他包含分支非正式地燃烧。Jacarandeae和Catalpeae是复活的，前者是其余家庭的姐妹，后者在“核心”Bignoniaceae中占据未解决的位置。Tribe Eccremocarpeae属于Tourrettieae。过去的分类承认一个大的Tecomeae，但这个部落是并系相对于所有其他部落。这里是特科梅减少到一个分支的约12属，在温带和热带生态系统中的全球分布。两个大的分支，Bignonieae和Crescentiina，占该科物种的80%以上。Coleeae和Crescentieae各自包含在较大的分支中，分别为古热带联盟和Tabebuia联盟;每个联盟都包括一个等级的分类群分配给传统的Tecomeae。简约推理表明，该家族起源于新热带地区，至少有五次扩散事件导致旧大陆的代表。
Bignoniaceae are woody, trees, shrubs, and lianas found in all tropical floras of the world with lesser representation in temperate regions. Phylogenetic analyses of chloroplast sequences (rbcL, ndhF, trnL-F) were undertaken to infer evolutionary relationships in Bignoniaceae and to revise its classification. Eight clades are recognized as tribes (Bignonieae, Catalpeae, Coleeae, Crescentieae, Jacarandeae, Oroxyleae, Tecomeae, Tourrettieae); additional inclusive clades are flamed informally. Jacarandeae and Catalpeae are resurrected the former is sister to the rest of the family, and the latter occupies an unresolved position within the "core" Bignoniaceae. Tribe Eccremocarpeae is included in Tourrettieae. Past classifications recognized a large Tecomeae, but this tribe is paraphyletic with respect to all other tribes. Here Tecomeae. are reduced to a clade of approximately 12 genera with a worldwide distribution in both temperate and tropical ecosystems. Two large clades, Bignonieae and Crescentiina, account for over 80% of the species in the family. Coleeae and Crescentieae are each included in larger clades, the Paleotropical alliance and Tabebuia alliance, respectively; each alliance includes a grade of taxa assigned to the traditional Tecomeae. Parsimony inference suggests that the family originated in the neotropics, with at least five dispersal events leading to the Old World representatives.