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Figure 1 | BMC Evolutionary Biology

Figure 1

From: Reassessing the temporal evolution of orchids with new fossils and a Bayesian relaxed clock, with implications for the diversification of the rare South American genus Hoffmannseggella(Orchidaceae: Epidendroideae)

Figure 1

Time-calibrated tree of the Orchidaceae based on plastid DNA sequences ( mat K and rbc L), obtained with BEAST, using the same matrix and calibration points as Ramirez et al. [4]. Numbers at nodes are median ages in million of years (Ma). Dashed branches indicate nodes with Bayesian posterior probabilities below 0.90. Circles indicate age-constrained nodes; the yellow circle indicates the root node, the purple circle indicates the internal calibration point for subtribe Goodyerinae (Pachyplectron - Dossinia). Inset: The extinct stingless bee Proplebeia dominicana with well-preserved pollinia attached to the mesoscutellum; these pollinia have been demonstrated to belong to an extinct orchid species in subtribe Goodyerinae. This represents the first definitive fossil record for the Orchidaceae. Reprinted by permission from Macmillan Publishers Ltd: Nature 448(30), copyright 2007.

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BMC Ecology and Evolution

ISSN: 2730-7182

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