辣椒果皮颜色的遗传分析  

Genetic Analysis on Pepper Peel Color

作　　者：丁盼盼[1,2,3] 江海坤[2,3] 刘童光[1] 陈鹏[1,2,3] 易建群 田红梅[2,3] 王艳[2,3] 方凌[2,3] 

机构地区：[1]安徽农业大学,安徽合肥230031 [2]安徽省农业科学院园艺研究所,安徽合肥230031 [3]园艺作物种质创新与生理生态安徽省重点实验室,安徽合肥230031

出　　处：《中国蔬菜》2016年第12期14-21,共8页China Vegetables

基　　金：安徽省科技重大专项(15czz03120);安徽省农业科学院科研项目(16D0307);国家现代农业产业技术体系建设专项(GARS-25-G-18);安徽省蔬菜产业技术体系建设任务

摘　　要：以商品成熟期果皮紫色(245)、绿色(246)、乳白色(247)的3份辣椒品系为亲本,配制杂交组合245×246和245×247,构建6世代遗传群体,通过目测分级、色差仪分析测定P1、P2、F1、B1、B2、F2各单株的辣椒商品成熟期果皮颜色L值、C值和颜色级值,并应用6个世代联合分析法研究辣椒商品成熟期果皮颜色的遗传规律。结果表明,辣椒商品成熟期果皮颜色遗传为细胞核遗传,紫-绿组合的辣椒商品成熟期果皮颜色性状符合1对加性主基因+加性-显性混合多基因模型,即D-2模型,其L值、C值和颜色级值F2主基因遗传率分别为22.39%、91.39%和82.26%;紫-白组合的辣椒商品成熟期果皮颜色性状符合2对加性-显性-上位性主基因+加性-显性-上位多基因模型,即E-0模型,其L值、C值和颜色级值F2主基因遗传率分别为87.02%、94.34%和97.54%。表明主基因遗传力较强,多基因遗传力和环境效应影响弱,在育种时对辣椒商品成熟期果皮颜色的选择应在早期分离世代进行。Taking 3 pepper （ Capsicum frutescens L. ） varieties with peel colors of purple （ ‘245’ ）, green （‘246’ ）, white （ ‘247’ ） as parents, this study crossed ‘245 × 246’ and‘245 × 247’, then constructed 6 generations of genetic population. And by adopting visual grading plus chromatic meter analysis to measure the L value, C value and color value of single commodity pepper plant peel color during maturity on generations of P1, P2, F1, F2, B1 and B2. Their peel color inheritances were studied by the method of conjoint analysis on 6 generations. The results showed that the inheritance of fruit peel color traits of commodity maturity accorded with the nucleus of genetic, and the major gene and polygene （ D-2 model ） inheritance of fruit peel color of commodity maturity in the purple-green combination accorded with the additive and hybrid additive-dominance pattern, that was D-2 model. Its L value, C value and color value of major gene heritability in F2 of the purple-green combination were 22.39%, 91.39% and 82.26%, respectively. The major gene and polygene （ E-0 model ） inheritance of fruit peel color of commodity maturity in the purple-white combination accorded with the additive- dominance-epitasis pattern.Its L value, C value and color value of major gene heritability in F2 of the purple- white combination were 87.02%, 94.34% and 97.54%, respectively. These results indicated that the major gene heritability in F2 was stronger, while the polygene heritability and environmental effect were weaker. So the fruit peel color of commodity maturity breeding should be selected in the early generation.

关 键 词：辣椒 果皮颜色 紫色 色差仪 遗传 

分 类 号：S641.3[农业科学—蔬菜学]