Economic Botany: Applied Plant Biology
Cimino, M.T. .
Molecular systematic analysis of Hypericum perforatum and its close relatives.
Hypericum perforatum is one of about 50 species classified in Hypericum section Hypericum which occurs in temperate regions of the northern hemisphere. In areas of the United States and Canada, H. perforatum is considered to be an invasive weed that persists along roadsides and in old fields. The species is a notable dietary supplement and remains the focus of numerous clinical research trials for possible treatment of depression. Despite its common occurrence, botanical collectors often find material difficult to identify, especially in cases where reproductive characters are inaccessible. Multiple specimens of vouchered H. perforatum and other species in section Hypericum were examined using nucleotide sequence data from the nuclear encoded trnL intergenic spacer and nuclear encoded internal transcribed spacer. Comparative systematic methods were used to investigate nucleotide variation as a means to authenticate material of H. perforatum. Phylogenetic analyses were performed to examine the position of H. perforatum, as well as other species-level relationships in the group.
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1 - Stoney Forensic, Inc., 14101 Willard Rd, Suite E, Chantilly, VA, 20151, USA
Herbal dietary supplement.
Presentation Type: Poster:Posters for Topics
Location: Ball Room & Party Room/SUB
Date: Monday, July 28th, 2008
Time: 12:30 PM