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Identification and Characterization of Petal Color Change from Pink to Yellow in Chrysanthemum morifolium ‘Pink Candy’ and Its Bud Variant

Author

Listed:
  • Lian-Da Du

    (National Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271018, China)

  • Yan-Hong Liu

    (National Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271018, China)

  • Jin-Zhi Liu

    (National Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271018, China)

  • Xiang-Qin Ding

    (National Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271018, China)

  • Bo Hong

    (Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing 100193, China)

  • Da-Gang Hu

    (National Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271018, China)

  • Cui-Hui Sun

    (National Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271018, China)

Abstract

Chrysanthemum, one of the most popular ornamental plants in the world, is renowned for its brilliant colors and multifarious flower types. Thousands of gorgeous chrysanthemum cultivars exist thanks to both traditional breeding techniques and its characteristic bud sporting. In this study, we identified a pink-to-yellow flower color-changed bud sport of the edible chrysanthemum cultivar ‘Pink Candy’. The bud variant and its parent plant bloomed at the same time, but with yellow- and pink-colored flowers, respectively. However, the two flower types exhibited strikingly different combinations and concentrations of primary and secondary metabolites, aromatic compounds, and pigments. Additionally, the expression patterns of key pigment biosynthesis genes, such as CmPAL ( p henylalanine a mmonia l yase ), CmDFR ( d ihydroflavonol 4-reductase ), CmF3H ( f lavanone 3′-hydroxylase ), CmNXS ( n eoxanthin synthase ) and CmCCD4 ( c arotenoid cleavage dioxygenase 4 ) were distinct between both flower types, helping to explain the color transformation of the mutant to some extent. Taken together, our results suggest a mechanism explaining the transformation of pink flowers to yellow flowers in the mutant bud sport. These results provide the foundation for the production of a novel chrysanthemum cultivar.

Suggested Citation

  • Lian-Da Du & Yan-Hong Liu & Jin-Zhi Liu & Xiang-Qin Ding & Bo Hong & Da-Gang Hu & Cui-Hui Sun, 2022. "Identification and Characterization of Petal Color Change from Pink to Yellow in Chrysanthemum morifolium ‘Pink Candy’ and Its Bud Variant," Agriculture, MDPI, vol. 12(9), pages 1-15, August.
  • Handle: RePEc:gam:jagris:v:12:y:2022:i:9:p:1323-:d:900003
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    References listed on IDEAS

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    1. Jin-Zhi Liu & Lian-Da Du & Shao-Min Chen & Jing-Ru Cao & Xiang-Qin Ding & Cheng-Shu Zheng & Cui-Hui Sun, 2022. "Comparative Analysis of the Effects of Internal Factors on the Floral Color of Four Chrysanthemum Cultivars of Different Colors," Agriculture, MDPI, vol. 12(5), pages 1-15, April.
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