糯玉米支链淀粉含量的主基因+多基因遗传模型分析  

Analysis of Main Gene + Polygenic Inheritance Model of Waxy Maize Amylopectin Content

作　　者：宋轶群[1] 王薪淇[1] 储航[1] 邢政[1] 齐望[1] 万丹凤 赵仁贵[1] 

机构地区：[1]吉林农业大学农学院,长春130118 [2]吉林省桦甸市夹皮沟镇农业站,桦甸132409

出　　处：《吉林农业大学学报》2015年第6期649-653,共5页Journal of Jilin Agricultural University

基　　金：国家星火计划项目(2011GA660005);吉林省财政厅科研育种项目(吉财2012002)

摘　　要：选用吉林农业大学特用玉米研究室育成的糯玉米自交系JN1和JN8组配的P1、P2、F1、B1、B2和F2共6个世代群体为材料,运用主基因+多基因遗传模型和6个世代联合分析方法,对糯玉米支链淀粉含量进行联合分析。结果表明:糯玉米支链淀粉含量性状由2对加性-显性-上位性+加性-显性多基因混合遗传模型控制,主基因遗传率在B1、B2和F2分别为85.35%、53.06%和62.30%,微效多基因遗传率分别为0,0,13.77%,3个世代的主基因遗传率均大于多基因遗传率,糯玉米的支链淀粉含量性状主要受主效基因控制。Genetic analysis of amylopectin content was conducted by using main gene ＋ polygenic inheritance model and joint analytic method of P1,P2,F1,B1,B2 and F2generations obtained from 2inbred lines（ JN1 and JN8） of waxy maize bred by Jilin Agricultural University. The results indicated that waxy maize amylopectin content trait was controlled by two pairs of additive-dominant-epistatic ＋ additive-dominant polygene mixed genetic model. Major gene heritability of B1,B2 and F2was 85. 35%,53. 06% and 62. 30% and polygene heritability was 0,0 and 13. 77%. The major heritability was greater than polygene heritability,indicating that amylopectin content trait is mainly controlled by major gene.

关 键 词：糯玉米 支链淀粉 世代 遗传模型 遗传率 

分 类 号：S513.032[农业科学—作物学]