| 利用家系群体鉴定数量性状多基因的存在 |
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| 引用本文： | 章元明,盖钧镒,戚存扣.利用家系群体鉴定数量性状多基因的存在[J].生物数学学报,2001,16(1):96-102. |
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| 作者姓名： | 章元明 盖钧镒 戚存扣 |
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| 作者单位： | 农业部国家大豆改良中心 南京农业大学大豆研究所, |
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| 摘 要： | 通过重复试验方差分析获得误差方差以探索只利用B、：2和B2：2或F2：3家系世代鉴定多基因存在的方法，混合分布参数的估计采用IECM算法，以油菜株高B1：2和B2：2家系平均数资料和千粒重F2：3家系平均数资料为例阐明该方法。
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| 关 键 词： | 数量性状 主基因＋多基因混合遗传 IECM算法 家系群体 作物 |
| 文章编号： | 1001-9626(2001)01-0096-07 |
Identification of the
Existence of Polygenes for Mixed Major Gene and Polygenes Inheritance Model of
Quantitative Traits by using B1:2 and B2:2 or F2:3 Families |
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| ZHANG Yuan-ming,GAI Jun-yi,QI Cun-kou.Identification of the
Existence of Polygenes for Mixed Major Gene and Polygenes Inheritance Model of
Quantitative Traits by using B1:2 and B2:2 or F2:3 Families[J].Journal of Biomathematics,2001,16(1):96-102. |
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| Authors: | ZHANG Yuan-ming GAI Jun-yi QI Cun-kou |
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| Abstract: | After environmental variance for replication experiment was estimated by analysis of variance, the likelihood ratio test was used to identify the existence of polygenes for B1:2 and B2:2 or F2:3 families. The iterated ECM(IECM) algorithm was used to obtain maximum likelihood estimates of the parameters in sample likelihood function. An example of the genetic analysis of plant height and weight per 1000 seeds of a rape cross was used to illuminate the above procedure. |
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| Keywords: | Quantitative trait Major genes plus polygene mixed inheritance IECM algorithm |
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