Phylogenetics and Morphology in the Blakeeae (Melastomataceae)
Phylogenetics and Morphology in the Blakeeae (Melastomataceae)
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Blakeeae（野牡丹科）的系统发育和形态学
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
W. Judd
中科院分区：
文献类型：
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作者：
D. Penneys;W. Judd
Blakeeeae（Mackenataceae）是一个新热带区的主要半附生木本植物，经常形成domatia窝藏螨或蚂蚁的互惠协会。该族包括Chalybea和Huilaea的10种，Blakea和Topobea的近200种。分离后两个属的关键特征属于花药形态;然而，许多种已被发现具有中间花药形式，从而使本已可疑的区别更加可疑。为了检验Blakea和Topobea的单系性，我们进行了三个系统发育分析，使用111个形态特征，分为定性，定量和组合数据集。这些分析解决了作为复系属。Blakea具有命名优先权;因此Topobea必须被同义化。形态特征的进化相结合的分支图上跟踪证明了这111个字符的系统发育效用，因为许多是突触的特定辐射内Blakea。值得注意的例子字符进化，自然历史和分支进行了讨论。
Blakeeae (Melastomataceae) are a Neotropical tribe of mostly hemiepiphytic woody plants that frequently form domatia harboring mites or ants in mutualistic associations. The tribe comprises 10 species in Chalybea and Huilaea and nearly 200 species in Blakea and Topobea. Key characters separating the latter two genera pertain to anther morphology; however, numerous species have been discovered with intermediate anther forms, thus making an already dubious distinction even more doubtful. In order to test the monophyly of Blakea and Topobea, we conducted three phylogenetic analyses using 111 morphological characters, partitioned into qualitative, quantitative, and combined data sets. These analyses resolved the genera as polyphyletic. Blakea has nomenclatural priority; thus, Topobea must be synonymized. Morphological character evolution tracked on the combined cladogram demonstrates the phylogenetic utility of these 111 characters, as many are synapomorphic for particular radiations within Blakea. Noteworthy examples of character evolution, natural history, and clades are discussed.