Phenetics in tree peony species from China by flower pigment cluster analysis

Citation
Ls. Wang et al., Phenetics in tree peony species from China by flower pigment cluster analysis, J PLANT RES, 114(1115), 2001, pp. 213-221
Citations number
51
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Plant Sciences
Journal title
JOURNAL OF PLANT RESEARCH
ISSN journal
0918-9440 → ACNP
Volume
114
Issue
1115
Year of publication
2001
Pages
213 - 221
Database
ISI
SICI code
0918-9440(200109)114:1115<213:PITPSF>2.0.ZU;2-E
Abstract
Petal pigment compositions were used as markers to study the phenetic relat ionships among seven wild tree peony species of Paeonia section Moutan DC. (fifteen accessions) from China. As the pigment markers, five anthocyanins together with three flavone and three flavonol aglycones were used. Princip al component analysis (PCA) provided five eigenvectors from nineteen pigmen t patterns, in which peonidin and cyanidin as well as the types of glycosid es; greatly influenced the first factor, Zi. The Euclidean distances of sta ndardized values obtained by eigenvector matrices with five factors (Z(1) t o Z(5)) produced a dendrogram in Ward's minimum variance cluster analysis, which showed good agreement with a classification based on the morphologica l characteristics of two subsections Vaginatae F.C. Stern and Delavayanae F .C. Stern. The results obtained by PCA and clustering quality a chemical cl assification of section Moutan using secondary metabolites, specifically fl ower pigments, as taxonomic markers.