内蒙古黑粒小麦种皮颜色的初步遗传分析  

Preliminary Genetic Analysis of Seed Coat Color of Black-grain Wheat in Inner Mongolia

作　　者：杨学明[1] 姚金保[1] 周淼平[1] 张鹏[1] 姚国才[1] 马鸿翔[1] 

机构地区：[1]江苏省农业科学院农业生物技术研究所,江苏省农业生物学重点实验室,江苏南京210014

出　　处：《江西农业学报》2013年第3期12-14,共3页Acta Agriculturae Jiangxi

基　　金：江苏省农业科技自主创新资金项目(CX(11)1025);国家科技支撑计划(2011BAD35B03);江苏省科技支撑计划项目(BE2011306;BE2012305);农业部现代农业产业技术体系(nycytx-03)

摘　　要：为了解内蒙古黑粒小麦种皮颜色的遗传特性,与3个红粒小麦和2个白粒小麦配制了10个正反交组合,观察了F1、F2代植株上籽粒种皮颜色的表现,分析其粒色遗传。结果表明,籽粒种皮黑色为细胞核遗传,黑色对红色和白色均呈显性。内蒙古黑粒小麦与红粒及白粒杂交F2代,均符合9(黑)∶7(红或白)分离规律,说明黑色种皮受2对显性互补基因控制,同一组合的F2各黑粒单株间籽粒颜色有深浅之分,说明这2对显性互补基因还具有剂量效应。通过黑粒小麦与红粒和白粒小麦品种间杂交,可以培育粒色不同的小麦新种质。In order to studythe inheritance property of seed coat color of black - grain wheat in Inner Mongolia, ten reciprocal cross combinations were obtained from three red - grain wheat varieties and two white - grain wheat varieties, the seed coat colors of plants in F1 and Fz generations were observed, and the heredity characteristics of seed coat color were analyzed. The results showed that black grain color was controlled by karyon, while red grain color and white grain color were controlled by dominant genes. In Fz generation, the cross combinations between black - grain wheat and red - grain or white - grain wheat accorded with the segregation ratio of 9 （black） ：7 （red or white）, indicating black seed coat color was controlled by two pairs of complementary dominant genes. For the same combination, there was difference in grain chroma among black - grain plants in F2 generation, which showed these two pairs of complementary dominant genes had still dose effect. New wheat varieties with different, seed coat colors could be bred by the hybridization between black - grain wheat and red - grain or white - grain wheat.

关 键 词：黑粒小麦 种皮色泽 遗传 

分 类 号：S512.1[农业科学—作物学]