小麦籽粒类胡萝卜素含量的遗传分析  

Inheritance of carotenoid content in wheat kernels

作　　者：郑文寅[1] 曾令楠 程颖 侯丞志 曹文昕[3] 赵莉[3] 姚大年[1] ZHENG Wenyin;ZENG Lingnan;CHENG Ying;HOU Chengzhi;CAO Wenxin;ZHAO Li;YAO Danian(College of Agronomy,Anhui Agricultural University/Key Laboratory of Wheat Biology and Genetic Improvement on Southern Yellow&Huai River Valley,Ministry of Agriculture and Rural Affairs,Hefei 230036,China;Chifeng Agricuture and Animal Husbandry School,Chifeng 024000,Inner Mongolia,China;Institute of Crop Research,Anhui Academy of Agricultural Sciences/Key Laboratory of Crop Quality Improvement of Anhui Province,Hefei 230001,China)

机构地区：[1]安徽农业大学农学院/农业农村部黄淮南片小麦生物学与遗传育种重点实验室,安徽合肥230036 [2]赤峰农牧学校,内蒙古赤峰024000 [3]安徽省农业科学院作物研究所/农作物品质改良安徽省重点实验室,安徽合肥230001

出　　处：《浙江农业学报》2022年第10期2088-2094,共7页Acta Agriculturae Zhejiangensis

基　　金：农作物品质改良安徽省重点实验室开放课题(2020ZW001);国家重点研发计划(2016YFD0300405)。

摘　　要：小麦籽粒中类胡萝卜素是一类重要的营养和健康化学成分。本研究利用7个类胡萝卜素含量不同的小麦品种,按Griffing双列杂交法Ⅱ配制21个杂交组合,进行配合力、遗传模型、显隐性基因和遗传参数估算等遗传分析。结果表明,在7个亲本中,生选2号是一个优良的亲本材料,其籽粒类胡萝卜素含量较高,一般配合力较好,可以较快地提高杂交后代类胡萝卜素含量。在亲本选配时应选择高×中类胡萝卜素含量类型。小麦籽粒类胡萝卜素含量为加性-显性-上位性模型遗传,高值受隐性基因控制且遗传力较低。在小麦营养和健康品质育种中,宜在高代进行严格选择以选育出较高类胡萝卜素含量的新品系,达到改良和提高我国小麦营养和健康品质的目的。In order to identify genetics laws of carotenoids in wheat grains,which is the important nutrients and health chemicals,seven wheat varieties with different carotenoid content were used to make 21 cross combinations according to Griffing diallel crossⅡ.Furthermore,the combining ability,genetic model,dominant and recessive genes and genetic parameter estimation were analyzed.The results showed that Shengxuan No.2 was an excellent parent material with high carotenoid content in grains and good general combining ability,which could rapidly produce the carotenoid content of hybrids.It is necessary to choose high content parents×medium content parents in parent selection and cross.The inheritance of carotenoid content in wheat grain followed additive-dominant-epistatic model.In addition,the high value of carotenoid was controlled by recessive gene with low heritability.Therefore,strict selection should be carried out in the higher generation to select new lines with higher carotenoids content in wheat nutrition and health quality breeding.

关 键 词：小麦 类胡萝卜素含量 Griffing双列杂交Ⅱ 遗传分析 营养和健康品质 

分 类 号：S512.1[农业科学—作物学]