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Abstract Detail



Systematics Section/ASPT

Fagan, Colin [1], Porter-Utley, Kristen [2].

Phylogenetic analysis of Passiflora subgenus Decaloba supersection Decaloba group ”Sexflorae” .

Recent molecular work completed in an effort to revise Passiflora subgenus Decaloba (ca. 230 spp.) at Keene State College has led to the ability to investigate, in greater detail, the evolutionary history of smaller evolutionary lineages within the subgenus. For my project, I attempt to discover whether a group of six species within Passiflora subgenus Decaloba supersection Decaloba, unofficially named the “Sexflorae,” constitute a monophyletic group. The species currently in the “Sexflorae” are P. complanata, P. malletti, P. manantlanensis, P. porphyretica (var. porphyretica and var. angustata), P. rugosissima, and P. sexflora. Passiflora sexflora is the most complex species and its range extends from Florida to Mexico, Mesoamerica, and South America. Most of the other species in the group have very narrow geographical ranges. The flowers of species in the “Sexflorae” are commonly borne in complex inflorescences, and are small (only reaching a diameter of about 2.5 cm) and greenish white to cream, with purple in the corona. The plants also completely lack extrafloral nectaries and are very densely pubescent. Phylogenetic relationships within the “Sexflorae” are investigated by means of Maximum Parsimony, Maximum Likelihood, and Bayesian analyses of molecular (ITS, cytGS, and ncpGS) characters.

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1 - Keene State College, Biology , 229 Main St, Keene, NH, 03435, United States
2 - 652 Route 13 S, Milford, NH, 03055-3416, USA

Keywords:
Passiflora
passionflowers
Systematics
molecular phylogeny
morphology.

Presentation Type: Poster:Posters for Sections
Session: P
Location: Grand Salon A - D/Riverside Hilton
Date: Monday, July 29th, 2013
Time: 5:30 PM
Number: PSY021
Abstract ID:250
Candidate for Awards:None


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