Phylogenetics of Quiinaceae (Malpighiales): evidence from trnL-trnF sequence data and morphology |
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Authors: | J V Schneider U Swenson R Samuel T Stuessy G Zizka |
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Institution: | (1) Department of Systematic Botany, Biology I, University of Leipzig, Johannisallee 21-23, 04103 Leipzig, Germany;(2) Department of Phanerogamic Botany, Swedish Museum of Natural History, Box 50007, 104 05 Stockholm, Sweden;(3) Department of Higher Plant Systematics and Evolution, Institute of Botany, University of Vienna, Rennweg 14, 1030 Vienna, Austria;(4) Department of Botany and Molecular Evolution, Research Institute Senckenberg and Johann Wolfgang Goethe-University, Senckenberganlage 25, 60325 Frankfurt am Main, Germany |
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Abstract: | We present the first parsimony analyses of the Neotropical family Quiinaceae using nucleotide sequence data from the non-coding
trnL intron and trnL-trnF intergenic spacer of the plastid genome, analysed separately as well as in combination with morphology. Both molecules and
combined data recover Quiinaceae as a well-supported monophyletic group. Quiinaceae form a polytomy together with their potential
sister groups, the monophyletic Ochnaceae s.str. and the monotypic Medusagynaceae from the Seychelles in the Indian Ocean.
Froesia is resolved as sister to the rest of the family. Other members of the family, Lacunaria, Quiina, and Touroulia, are all recovered as monophyletic despite the inclusion of strikingly distinctive representatives (L. oppositifolia and Q. pteridophylla). Relationships among the last three genera, however, are yet uncertain. Optimising characters of breeding system onto the
molecular phylogeny reveals that bisexual flowers (Froesia) are the ancestral state in Quiinaceae, whereas androdioecy (Quiina, Touroulia) and dioecy (Lacunaria) are derived breeding systems. |
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Keywords: | Androdioecy dioecy Froesia Lacunaria Medusagynaceae Ochnaceae Quiina Touroulia |
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