ibclogo XVI International Botanical Congess


Abstract Number: 5155
Session = 20.1.3


A PHYLOGENY OF MONIMIACEAE BASED ON cpDNA AND NUCLEAR DATA


Susanne Renner1 and Michael Zanis2, 1Univ. of Missouri-St. Louis, 2Univ. of Washington, Pullman


After the exclusion of extraneous elements formerly included in Monimiaceae, viz. Amborellaceae, Atherospermataceae, Siparun-aceae, and Trimeniaceae, a monophyletic Monimiaceae comprise 18-25 genera, some poorly circumscribed. Two of these, Tambourissa in Madagascar and Mollinedia in the neotropics, are moderately species-rich, the remainder are small or monotypic. We have sequenced rbcL and trnL-trnF from the chloroplasts, and 26S and ITS from the nuclear genomes, of representative species from most genera. In agreement with morphology, there are two main clades: the Monimioideae Peumus (Chile), Monimia (Mauritius, Réunion), and Palmeria (New Guinea, Sulawesi, and Australia), and the Mollinedioideae, comprising all other genera, with the Hortonioideae (Sri Lanka) constituting the basal branch of Mollinedioideae.


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