نتایج جستجو برای: allelic single nucleotide polymorphismsnp markers distributed over a chromosomes with 100 cm length was simulated three different geneeffects distributions uniform

تعداد نتایج: 16190514  

Journal: :تولیدات دامی 0
رستم عبداللهی آرپناهی دانشجوی دکتری گروه علوم دامی، دانشکدۀ علوم زراعی و دامی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج ـ ایران عباس پاکدل دانشیار گروه علوم دامی، دانشکدۀ علوم زراعی و دامی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج ـ ایران اردشیر نجاتی جوارمی دانشیار گروه علوم دامی، دانشکدۀ علوم زراعی و دامی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج ـ ایران محمد مرادی شهربابک استاد گروه علوم دامی، دانشکدۀ علوم زراعی و دامی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج ـ ایران

the objective of this study was to compare six statistical methods for prediction of genomic breedingvalues for traits with different genetic architecture in term of gene effects distributions and number ofquantitative traits loci (qtls). a genome consisted of 500 bi-allelic single nucleotide polymorphism(snp) markers distributed over a chromosomes with 100 cm length was simulated. three differ...

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...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تحصیلات تکمیلی علوم پایه زنجان - دانشکده شیمی 1391

in this thesis a calibration transfer method is used to achieve bilinearity for augmented first order kinetic data. first, the proposed method is investigated using simulated data and next the concept is applied to experimental data. the experimental data consists of spectroscopic monitoring of the first order degradation reaction of carbaryl. this component is used for control of pests in frui...

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

The success of genomic selection mainly depends on the extent of linkage disequilibrium (LD) between markers and quantitative trait loci (QTL), number of QTL and heritability (h2) of the traits. The extent of LD depends on the genetic structure of the population and marker density. This study was conducted to determine the effects of marker density, level of heritability, number of QTL, and to ...

A. Atefi A.A. Shadparvar, N. Ghavi Hossein-Zadeh

The accuracy of genomic breeding value prediction was investigated in various levels of reference population size, trait heritability and the number of quantitative trait locus (QTL). Five Bayesian methods, including Bayesian Ridge regression, BayesA, BayesB, BayesC and Bayesian LASSO, were used to estimate the marker effects for each of 27 scenarios resulted from combining three levels for her...

Journal: :journal of livestock science and technologies 2015
g. r. dashab

to compare different qtl mapping methods, a population with genotypic and phenotypic data was simulated. in bayesian approach, all information of markers can be used along with combination of distributions of snp markers. it is assumed that most of the markers (95%) have minor effects and a few numbers of markers (5%) exert major effects. the simulated population included a basic population of ...

G. R. Dashab

To compare different QTL mapping methods, a population with genotypic and phenotypic data was simulated. In Bayesian approach, all information of markers can be used along with combination of distributions of SNP markers. It is assumed that most of the markers (95%) have minor effects and a few numbers of markers (5%) exert major effects. The simulated population included a basic population of ...

بانه, حسن, رحیمی میانجی, قدرت, نجاتی جوارمی, اردشیر, هنرور, محمود,

The current study was carried out to evaluate accuracy of some Bayesian methods for genomic breeding values prediction for threshold traits with different types of genetic architecture based on distribution of gene effect and QTL numbers. A genome consisted of 3 chromosomes of 100 CM with 2000 single nucleotide polymorphisms (SNP) was simulated. The QTL numbers were 0.01, 0.05 and 0.1 of total ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...

Journal: :journal of livestock science and technologies 2014
n. gorgani firozjah h. atashi m. dadpasand m. j. zamiri

the aim of this study was to determine the effect of marker density, level of heritability, number of qtls, and size of training set on the genomic accuracy over three generations. thereby, a trait was simulated with heritability of 0.10, 0.25 or 0.40. for each animal, a genome with 20 chromosomes, 1 morgan each, was simulated. different marker densities (2000, 4000 and 6000 markers) and 400 an...

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