J Integr Plant Biol. ›› 2008, Vol. 50 ›› Issue (5): 581-588.DOI: 10.1111/j.1744-7909.2008.00649.x

• Stress & Phytochemistry • Previous Articles     Next Articles

Determination of Anthocyanins and Exploration of Relationship between Their Composition and Petal Coloration in Crape Myrtle (Lagerstroemia hybrid)

Jie Zhang, Liang-Sheng Wang, Jin-Ming Gao, Qing-Yan Shu, Chong-Hui Li, Juan Yao, Qing Hao and Jing-Jing Zhang   

Abstract: Petal coloration and pigment components in 12 American crape myrtle cultivars (Lagerstroemia indica × Lagerstroemia fauriei) and five Chinese crape myrtle cultivars (L. indica hybrids) were studied. Color was measured by CIEL*a*b* scale and anthocyanin composition of crape myrtle was determined using high-performance liquid chromatography coupled to photodiode array detection and electrospray ionization mass spectrometry. The presence of the previously reported delphinidin 3-O-glucoside, petunidin 3-O-glucoside and malvidin 3-O-glucoside were confirmed. Cyanidin 3-O-glucoside was identified in crape myrtle for the first time. We explored the relationship between petal color and anthocyanin contents by multiple linear regression analyses. The results indicated that total flavones and flavonols were important variables and contributed to blue-enhancing in crape myrtle. Based on anthocyanins and co-pigments analysis, flower color breeding in crape myrtle towards true-red and blue were discussed.

Key words: anthocyanin, breeding, co-pigmentation, crape myrtle, flower color, high-performance liquid chromatography and electrospray ionization

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