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Evolutionary Relationships In Polygonaceae With Emphasis On Triplaris

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title
Evolutionary Relationships In Polygonaceae With Emphasis On Triplaris
author
Sanchez, Adriana
abstract
The plant family Polygonaceae Juss. has long been recognized as a distinct group based on the presence of ochrea, a single, basal ovule, a perianth composed of 5 or 6 tepals, and the fruit, an achene. However, the family is morphologically diverse with growth forms varying from small herbs or cushion plants to shrubs, lianas, and trees over 20m tall. Members of Polygonaceae are distributed worldwide (but most species are concentrated on the northern temperate zone), and they colonize virtually all ecosystems. Although few molecular studies have been done in Polygonaceae, the monophyly of the family has been established and a new subfamily classification has recently been proposed. Although the same subfamilies are recognized (Eriogonoideae and Polygonoideae), the circumscription changed: Eriogonoideae was expanded to include the woody Neotropical genera previously placed in Polygonoideae.
subject
Eriogonoideae
Phylogeny
Polygonaceae
Pseudomyrmex
Ruprechtia
Triplaris
contributor
Kron, Kathleen A. (committee chair)
Smith, William K. (committee member)
Michelangeli, Fabian A. (committee member)
Silman, Miles R. (committee member)
Tague, Brian W. (committee member)
date
2011-07-14T20:35:57Z (accessioned)
2012-01-14T09:30:13Z (available)
2011 (issued)
degree
Biology (discipline)
embargo
2012-01-14 (terms)
identifier
http://hdl.handle.net/10339/33474 (uri)
language
en (iso)
publisher
Wake Forest University
type
Dissertation

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