不同类型双色百合的花色形成分析
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“十二五”国家科技支撑计划项目(2013BAD01B0706);


Analysis of Flower Color Formation in Different Types of Bicolor Lilies
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    摘要:

    以3个花朵双色的亚洲百合品种(‘Black Eye’、‘Pieton’和‘Twosome’)为试验材料,通过对不同部位(花被片上部和下部)的花色表型、色素成分和含量进行综合分析,解析不同类型双色百合的形成机理。结果表明:(1)于紫色花被片下部检测到矢车菊素3Oβ芸香糖苷一种花青苷,且在花被片下部深紫色的‘Black Eye’中含量最高,而白色、黄色和橙色的花被片上部均未检测到花青苷。(2)3个品种的双色百合花被片上部和下部共检测到15种类胡萝卜素成分,不同品种花被片上部和下部中类胡萝卜素含量差异明显;‘Pieton’花被片中的特征成分为花药黄质、紫黄质和β胡萝卜素,‘Twosome’花被片中的特征成分为辣椒红素,‘Black Eye’花被片中未检测到特征类胡萝卜素成分。(3)主成分分析发现不同百合品种中类胡萝卜素成分和含量具有明显差异,而同一品种花被片上部和下部类胡萝卜素组成接近但含量差异显著。(4)回归分析发现,矢车菊素3Oβ芸香糖苷、辣椒红素、八氢番茄红素、玉米黄质和β胡萝卜素是影响百合花色的主要色素成分。研究表明,花青苷和类胡萝卜素成分在花被片不同区域的差异积累是双色百合形成的主要原因。

    Abstract:

    In order to clarify the formation of different types of bicolor lily cultivars, we used three bicolor Asiatic hybrid lilies as the materials to analyze flower color phenotype, pigment composition and content in the upper and basal tepals. The results showed that: (1) a single anthocyanin cyanidin 3Oβrutinoside was detected in the basal tepals, and the concentration of ‘Black Eye’ was the highest, while no anthocyanins were found in the upper tepals. (2) A total of 15 carotenoids were identified in the tepals of all samples, and the content of carotenoid differed significantly between the upper and basal tepals in different cultivars. The characteristic components in the tepals ‘Pieton’ were antheraxanthin, violaxanthin and βcarotene, and the characteristic components in the tepals of ‘Twosome’ was capsanthin, while no characteristic carotenoid composition were detected in the ‘Black Eye’. (3) Principal component analysis found that the carotenoid composition and content were obviously different in three lily cultivars. However, the composition in the upper and basal tepals of the same cultivar was similar and the contents were significantly different. (4) Regression analysis found that cyanidin3Oβrutinoside, capsanthin, phytoene, zeaxanthin and βcarotene were the main pigments that may affect lily flower color. The research results indicated that the accumulation of anthocyanin and carotenoids in different regions of the tepals was the major reason for the formation of bicolor lilies.

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王 欢,孔 滢,窦晓莹,等.不同类型双色百合的花色形成分析[J].西北植物学报,2021,41(4):606-614

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  • 在线发布日期: 2021-05-21
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