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

Petal pigment compositions were used as markers to study the phenetic relationships 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...

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Bibliographic Details
Published in:Journal of Plant Research 2001-09, Vol.114 (1115), p.213-221
Main Authors: Wang, L.S. (Kagoshima Univ. (Japan). Faculty of Agriculture), Hashimoto, F, Shiraishi, A, Aoki, N, Li, J.J, Shimizu, K, Sakata, Y
Format: Article
Language:English
Subjects:
ANTHOCYANINS
CHEMOTAXONOMY
Cluster analysis
FLAVONOIDS
FLOWERS
Flowers & plants
Genetic markers
Metabolites
Morphology
PAEONIA
Pigments
Plant biology
Principal components analysis
Secondary metabolites
Taxonomy
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Summary:Petal pigment compositions were used as markers to study the phenetic relationships 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. Principal component analysis (PCA) provided five eigenvectors from nineteen pigment patterns, in which peonidin and cyanidin as well as the types of glycosides greatly influenced the first factor, Z1. The Euclidean distances of standardized values obtained by eigenvector matrices with five factors (Z1 to Z5) produced a dendrogram in Ward's minimum variance cluster analysis, which showed good agreement with a classification based on the morphological characteristics of two subsections Vaginatae F.C.Stern and Delavayanae F.C.Stern. The results obtained by PCA and clustering qualify a chemical classification of section Moutan using secondary metabolites, specifically flower pigments, as taxonomic m a rkers.
ISSN:0918-9440
1618-0860
DOI:10.1007/pl00013985