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Abstract Detail


McClelland, Donald [1], Nee, M. [2].

The Cannibal's Tomato and its relatives, a cladistic analysis of Solanum section Dunaliana (Solanaceae). or Can I eat your sister (taxa)?

Used for food, ornament, and medicines, the Solanaceae is undoubtedly one of the most important plant families for mankind. Of the ca. 100 genera in the family, the largest and most important is Solanum. Some crops in the genus are well known, including the potato (Solanum tuberosum), tomato (Solanum lycopersicum), and eggplant (Solanum melongena); however, there are a number of lesser known food crops as well. One example is the Cannibal's Tomato (Solanum viride). This species, from several of the Pacific Islands, has been considered to be part of Solanum section Dunaliana. This section is distributed throughout Oceania and belongs to the subgenus Leptostemonum, the so-called "spiny solanums." The first in-depth phylogenetic analysis of section Dunalianum was undertaken using molecular sequence data from three gene regions (ITS, waxy, and trnT-trnF). Monophyly of the section as previously circumscribed was examined, and the relationships of species sampled were addressed. All conclusions were drawn from the strict consensus of all most parsimonious trees under the maximum parsimony criterion. Based on this analysis, Solanum section Dunaliana is not monophyletic as currently circumscribed, and taxonomic realignments are necessary. Of the species sampled, most fall into either of two clades. Both clades include species not previously considered to belong to the section. These clades show an interesting geographical trend with species in close geographical proximity being more closely related.


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1 - The New York Botanical Garden and the City University of New York, 200th St. and Kazimiroff Blvd., The Bronx, NY, 10458
2 - The New York Botanical Garden, Institute of Systematic Botany, 200th Street & Kazimiroff Blvd., Bronx, NY, 10458, USA

Keywords:
Solanum
Solanaceae
systematics.

Presentation Type: Array
Session: TBA
Location: Magpie A/Cliff Lodge - Level B
Date: Tuesday, July 28th, 2009
Time: 2:00 PM
Number: 005
Abstract ID:451


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