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5. 我国玉米自交系维生素A基因crtRB1和lcyE的等位变异分析

我国玉米自交系维生素A基因crtRB1和lcyE的等位变异分析

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【摘 要】

：

维生素A(vitamin A,VA)又名视黄醇,是人体和动物必需的13种维生素之一,在人体中可以维持视力并且促进骨骼生长。人类所需的VA主要通过日常饮食来获得,食物中缺乏VA将直接影响人类的身体健康。玉米作为三大粮食作物之一,是很多国家和地区的主食,因此,提高玉米中VA原的含量是保证该地区人民健康的重要前提。2010年,Yan等通过对玉米中类胡萝卜素的生物合成途径及其相关基因的研究,发现β羟化酶基

【作 者】

：

曾科文 

【机 构】

：

华中农业大学

【发表日期】

：

2012年06期

【关键词】

：

玉米 维生素A 功能标记 

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维生素A(vitamin A,VA)又名视黄醇,是人体和动物必需的13种维生素之一,在人体中可以维持视力并且促进骨骼生长。人类所需的VA主要通过日常饮食来获得,食物中缺乏VA将直接影响人类的身体健康。玉米作为三大粮食作物之一,是很多国家和地区的主食,因此,提高玉米中VA原的含量是保证该地区人民健康的重要前提。2010年,Yan等通过对玉米中类胡萝卜素的生物合成途径及其相关基因的研究,发现β羟化酶基因(crtRB1)可使β胡萝卜素含量增加18倍,ε番茄红素环化酶基因(lcyE)可以增加p胡萝卜素对a胡

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