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- Prediction of genetic effects by AUP method and estimates of phenotypic and genetic variance components by MINQUE(1) method are suggested for different generations. 不同世代的表型方差及各遗传方差的MINQUE(1)法估计值。
- Methods We applied generalized linear mixed models for the nuclear family data to set up the genetic variance component model and estimated parameters using MCMC. 方法将广义线性混合模型应用于核心家系资料建立遗传方差分量模型,运用MCMC方法进行参数估计。
- Objective To study genetic variance component model of qualitative traits with covariates in nuclear family,and to analyze the effects of genetic factors and environmental factors. 目的研究核心家系中带协变量的质量性状的遗传方差分量模型,定量地评价遗传因素和环境因素对质量性状的作用。
- Genetic variance components 遗传方差分量
- Only the additive genetic variance is transmissible by seed. 仅仅加性遗传方差是由种子遗传的。
- Unbiasedness and efficiency for estimating variance components and predicting genetic effects are tested by Mone Carlo simulations. 运用蒙特卡罗模拟的方法,验证了遗传模型的稳定性和统计分析方法的无偏性。
- The Study of Genetic Variance Component Model of Quantitative Traits in Nuclear Family 核心家系中数量性状遗传方差分量模型的研究
- Estimate not calculated due to negative sire variance components. 1因负的父方变方成份故未估计。
- A side effect of increasing genetic variance following disruptive selection often causes greater genetic flexibility of the population. 经分裂选择后遗传变量增加的附带作用,往往使种群的遗传可塑性有所增加。
- The additive genetic variance of the same character, estimated from the covariance of half sibs, was 0. 9602. 从半同胞协方差估计出来的;同一性状的加性遗传方差为0.;9602。
- This was mainly because of the ability of detecting genetic variance of the two techniques. 多样性上略有差异,这主要是因为两种技术的对遗传变异的检测能力不同,
- Two way classification models with random effects are used widely.The variance components in these models are often estimated by ANOVA estimates. 摘要两向分类随机效应模型是一种有着广泛应用的统计模型,对其中的方差分量,经常使用方差分析法来估计。
- A side effect of increasing genetic variance following disruptive selection is often greater genetic flexibility of the population. 经分裂选择后遗传变量增加的附带作用,往往使种群的遗传可塑性有所增加。
- Statist ic methods are introduced for analyzing heterosis, estimating genetic variance c omponents, and predicting genetic effects. 还介绍了分析杂种优势、估算遗传方差分 量以及预测遗传效应值的相应统计分析方法。
- The new method can be use d when the difference of variance components between male and female is relative ly large with full-sib analysis in actual estimation. 本文方法可以在一定程度上弥补全同胞分析时,因 实际资料的公母畜方差组分差异过大的缺陷,具有实际可行性。
- In this article, by exploiting flanking markers through the widely applied half-sib design, we have developed the structures of three variance components, i.e. 该文在侧翼标记情况下利用广泛使用的半同胞设计提出了3种方差组分,即标记组间方差、组内多基因方差和组内重组方差及其构成。
- Random amplified Polymorphic DNA (RAPD) was used to analyze the genetic diversity among eri sickworm. The genetic variance of five erisickworm was studied. 用RAPD技术对蓖麻蚕基因组DNA进行多态性研究,分析了5个蓖麻蚕品种间的遗传差异。
- Compared with restricted estimation of maximum likelihood (REML), MCMC was preferred to parameter inference of variance components, and was more robust for small sample data. 同时和基于似然的限制性最大似然估计法(REML)相比,MCMC方法在参数推断方面有更强的优越性,在小样本情况下可得到更稳健的参数估计。
- The ratio of sum of additive effect variance to total genetic variance were 18.8%,and that of sum of dominance effect variance to total genetic variance were 81.2%. 在胚和母体两套遗传体系中;加性效应方差占总遗传方差的18.;8%25;胚显性方差与母体显性方差之和占总遗传方差的81