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Abstract Detail


Systematics Section / ASPT

Kotarski, Michael [1], Caro, Sarah [1], Sweeney, Carol [2], Greene, Michael [1], Stampfle, Jessica [1], Leonard, Deborah [1].

Placement of Three Problematic Genera of Gesneriaceae based on Chalcone Synthase (CHS) a Duplicated Nuclear Gene.

The duplicated nuclear gene CHS was used to position three problematic genera within Gesneriaceae. CHS is duplicated in all lineages and forms extensive orthologous-paralogous trees making the placement of genera within the family distinct. Two genera of the tribe Coronanthereae (Sarmienta and Rhabdothamnus) are a monophyletic group within the Gesnerioideae subfamily and this clade is sister to a large orthologous-paralogous subtree containing the majority of new world genera This placement suggests that Coronanthereae does not merit standing as a subfamily but is a tribe circumscribed within Gesnerioideae. The monotaxic tribe Titanotricheae (Titanotrichum) lies between the Coronanthereae and sister to the rest of the new world genera.


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1 - Niagara University, Department of Biology, DePaul Hall, Lewiston Rd., Niagara, New York, 14109, USA
2 - Niagara Univiversity, Biology Department, Niagara Univ, New York, 14109, USA

Keywords:
Gesneriaceae
chalcone synthase
Titanotrichum
Sarmienta
Rhabdothamnus.

Presentation Type: Poster:Posters for Sections
Session: P
Location: Exhibit Hall (Northeast, Southwest & Southeast)/Hilton
Date: Sunday, July 8th, 2007
Time: 8:00 AM
Number: P59048
Abstract ID:565


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