نتایج جستجو برای: genomic accuracy

تعداد نتایج: 448226  

    Imputation as a method of creating low-density chips to high-density chips has been introduced to increase the accuracy of genomic selection in animals. In the current study, to investing imputation accuracy, three populations of mixed (scenario 1), pure (scenario 2) and mixed + pure (scenario 3) were simulated using QMSim. Two methods of imputation including Beagle and Flmpute were used fo...

The objective of this study was to evaluate the imputation accuracy of parent-offspring trios under different scenarios. By using simulated datasets, the performance Bayesian LASSO in genomic prediction was also examined. The genome consisted of 5 chromosomes and each chromosome was set as 1 Morgan length. The number of SNPs per chromosome was 10000. One hundred QTLs were randomly distributed a...

Journal: :تولیدات دامی 0
یحیی محمدی دانشجوی دکتری، گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه فردوسی مشهد، ایران محمد مهدی شریعتی استادیار، گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه فردوسی مشهد، ایران سعید زره داران استاد، گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه فردوسی مشهد، ایران محمد رزم کبیر استادیار، گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه کردستان، ایران محمدباقر صیادنژاد مرکز اصلاح نژآد و بهبود تولیدات دامی کشور محمدباقر زندی مرکز اصلاح نژآد و بهبود تولیدات دامی کشور

genomic selection (gs) is a tool for prediction of breeding values for quantitative traits. for a successful application of gs, accuracy of predicted genomic breeding value (gebv) is a key issue to consider. here we investigated the accuracy of gebv in 345 genotyped iranian holstein cattle. the study was performed on milk, fat, protein yield and somatic cell count. four methods g-blup, bayes b,...

Journal: :علوم دامی ایران 0
هادی آتشی استادیار، گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه شیراز نرجس گرگانی فیروزجاه کارشناس ارشد، گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه شیراز

genomic selection is a method to predict the breeding values of individuals using a large number of single nucleotide polymorphism markers. the cost of the high-density marker panel genotyping is very high, which prevents the widely application of genomic selection. the present simulation study was carried out to evaluate the use of low to medium marker density panels to predict direct genomic ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - دانشکده علوم انسانی 1392

the purpose of this study was to investigate the effect of task repetition on accuracy of iranian efl learners ’speaking ability. in order to achieve this purpose, a null hypothesis was developed: there is no statistically significant difference between accuracy speaking ability in iranian efl learners by use of task repetition. ; of course i should mention that, beside this null hypothesis, an...

2014
Yvonne M. Badke Ronald O. Bates Catherine W. Ernst Justin Fix Juan P. Steibel

Genomic selection has the potential to increase genetic progress. Genotype imputation of high-density single-nucleotide polymorphism (SNP) genotypes can improve the cost efficiency of genomic breeding value (GEBV) prediction for pig breeding. Consequently, the objectives of this work were to: (1) estimate accuracy of genomic evaluation and GEBV for three traits in a Yorkshire population and (2)...

2014
Yvonne M. Badke Ronald O. Bates Catherine W. Ernst Juan P. Steibel

Genomic selection has the potential to increase genetic progress. Genotype imputation of high-density single-nucleotide polymorphism (SNP) genotypes can improve the cost efficiency of genomic breeding value (GEBV) prediction for pig breeding. Consequently, the objectives of this work were to: (1) estimate accuracy of genomic evaluation and GEBV for three traits in a Yorkshire population and (2)...

C. Robert Granie F. Alanoshahr, R. Imany-Nabiyyi S. Alijani S.A. Rafat

Genome-wide evaluation uses the associations of a large number of single nucleotide polymorphism (SNP) markers across the whole genome and then combines the statistical methods with genomic data to predict the genetic values. Genomic predictions relieson linkage disequilibrium (LD) between genetic markers and quantitative trait loci (QTL) in a population. Methods that use all markers simultaneo...

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