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Abstract Detail

Systematics Section

Deresienski, Tess [1], Porter-Utley, Kristen [2].

A New Molecular Phylogeny for Passiflora Subgenus Decaloba Supersection Cieca (Passifloraceae).

A new molecular phylogeny of the closely related species of Passiflora subgenus Decaloba supersection Cieca (Passifloraceae) is presented. Supersection Cieca is a monophyletic group of herbaceous to woody climbers found in subtropical and tropical regions of the world. The 19 species, including two subspecies, recognized here are primarily distributed in the southern United States,Mexico, Central America, South America, and the Caribbean. The species of the supersection are recognized by their small, apetalous, usually greenish flowers with the filaments of the corona mostly in two series. The supersection contains two problematic species complexes, P.suberosa and P. coriacea. Phylogenetic relationships within supersection Cieca have been investigated by means of cladistic analyses of morphological (external morphology) and molecular (ITS) characters. Though many clades within the supersection are well-resolved in the analyses of these data, several relationships are poorly resolved. Additional genes, cytGS, ncpGS, and trnL-Fare used as additional data sources to further resolve the evolutionary relationships within the supersection. The gene datasets are analyzed independently and combined with the ITS data to produce a more well-resolved phylogeny of the supersection. The morphological phylogeny is compared to the individual and combined molecular phylogenies.

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1 - Keene State College, Biology, 229 Main St., Keene, NH, 03435, USA
2 - Keene State College, Biology, 229 Main St., MS-2001, Keene, NH, 03435, United States


Presentation Type: Poster:Posters for Sections
Session: P
Location: Khorassan Ballroom/Chase Park Plaza
Date: Monday, July 11th, 2011
Time: 5:30 PM
Number: PSY025
Abstract ID:360

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