Freire-Fierro, Alina , Spotila, James, R. , Russell, Jacob A. , Dorr, Laurence J. , Schuyler, Alfred E. , Kilham, Susan S. , Bien, Walter, F. .
Systematics of Monnina (Polygalaceae).
Monnina (Polygalaceae) is a monophyletic genus with unknown phylogenetic origins. The ca. 230 species within the genus are morphologically diverse and are an important element of the Neotropical montane flora. The goal of this research is to use morphological and molecular approaches to determine the phylogenetic relationships within the genus and between Monnina and its related genera. This research will address these questions using morphological and molecular approaches. The study and analysis of the already selected 100 morphological characters from about 200 borrowed herbarium specimens (~95 species) will provide information regarding the morphological variability in the genus, while phylogenetic analyses with nuclear and chloroplast genes will provide us with information about the timing and order of evolution in this group. Material from previously hypothesized sister genera (e.g. Polygala, Comesperma, and Securidaca), together with specimens from Monnina from Costa Rica, Mexico and the rest of Central America and South America will be sampled. The markers trnL-trnF, matK, and ndhF-rpl32 have been successfully used with Polygalaceae. Nuclear genes (low copy and/or ITS) will be tested if cpDNA markers are not informative at the infrageneric level. The phylogenies will be inferred through parsimony and Bayesian statistics. Further taxonomic and ecological studies could provide valuable data regarding the distribution and conservation status of Monnina.
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1 - Academy of Natural Sciences, Botany, 1900 Benjamin Franklin Parkway, Philadelphia, PA, 19103, USA
2 - Drexel University, Biology, 3141 Chestnut St., Philadelphia, PA, 19104, USA
3 - Smithsonian Institution, Botany, 10th St. and Constitution Av., NW, Washington, D.C., 20560, USA
Presentation Type: Poster:Posters for Sections
Location: Khorassan Ballroom/Chase Park Plaza
Date: Monday, July 11th, 2011
Time: 5:30 PM