Anthocyanins in Tree Peony (Paeonia suffruticosa) and Their Relationship with Flower Color

Yanzhao Zhang; Yan Zhang; Xujia Duan; Xin Liu; Shuiqing Yuan; Jianming Han; Yanwei Cheng

doi:10.7235/HORT.20200070

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2020 Vol.38, Issue 6 Preview Page Next Page

Research Article

Anthocyanins in Tree Peony (Paeonia suffruticosa) and Their Relationship with Flower Color

31 December 2020. pp. 776-784

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Abstract

Flower color is an important trait of tree peony (Paeonia suffruticosa), an economically important species. The accurate classification of flower color and understanding of the mechanism involved in creating variations in flower color provide the basis of tree peony breeding and genetic research. This study used the International Commission of Illumination Color System, known as CIELAB or CIE L*a*b*, to measure the flower color of 150 cultivars of the Zhongyuan cultivar group of tree peony. Hierarchical cluster analysis and visual observations were used to divide this cultivar group into five major color lines: white, pink, red, purple, and fuchsia. The brightness (L*) of the flower color gradually decreased with an increase in anthocyanin content. The redness (a*) of the flower color was significantly negatively correlated with total anthocyanin (TA) content in the fuchsia line but was positively correlated with TA in the remaining four color lines. Six types of anthocyanins, including Cy3G, Cy3G5G, Pn3G, Pn3G5G, Pg3G, and Pg3G5G, were mainly found in the Zhongyuan cultivar group by liquid chromatography except in the white line. Stepwise regression analysis showed that Pg3G5G had a significant positive correlation with redness of flower color. Cy3G5G and Pn3G5G had a significant positive correlation with redness in pink, red, and purple color lines. However, Pn3G was negatively correlated with redness in the fuchsia line. This study lays the foundation for further development of new breeds and flower colors in tree peony and for genetic research related to flower color.

Keywords

CIE L*a*b*

correlation analysis

pigment composition

redness

total anthocyanin content

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Information

Publisher :KOREAN SOCIETY FOR HORTICULTURAL SCIENCE
Publisher(Ko) :원예과학기술지
Journal Title :Horticultural Science and Technology
Journal Title(Ko) :원예과학기술지
Volume : 38
No :6
Pages :776-784
Received Date : 2020-04-01
Revised Date : 2020-07-25
Accepted Date : 2020-08-20
DOI :https://doi.org/10.7235/HORT.20200070

Horticultural Science and Technology ISSN:1226-8763(Print) 2465-8588(Online) 원예과학기술지

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