نتایج جستجو برای: bayesb

تعداد نتایج: 57  

2014
Zhe Zhang Ulrike Ober Malena Erbe Hao Zhang Ning Gao Jinlong He Jiaqi Li Henner Simianer

Utilizing the whole genomic variation of complex traits to predict the yet-to-be observed phenotypes or unobserved genetic values via whole genome prediction (WGP) and to infer the underlying genetic architecture via genome wide association study (GWAS) is an interesting and fast developing area in the context of human disease studies as well as in animal and plant breeding. Though thousands of...

2016
Emre Karaman Hao Cheng Mehmet Z. Firat Dorian J. Garrick Rohan L. Fernando

This study aims at characterizing the asymptotic behavior of genomic prediction R2 as the size of the reference population increases for common or rare QTL alleles through simulations. Haplotypes derived from whole-genome sequence of 85 Caucasian individuals from the 1,000 Genomes Project were used to simulate random mating in a population of 10,000 individuals for at least 100 generations to c...

2010
Zhe Zhang Jianfeng Liu Xiangdong Ding Piter Bijma Dirk-Jan de Koning Qin Zhang

BACKGROUND With the availability of high density whole-genome single nucleotide polymorphism chips, genomic selection has become a promising method to estimate genetic merit with potentially high accuracy for animal, plant and aquaculture species of economic importance. With markers covering the entire genome, genetic merit of genotyped individuals can be predicted directly within the framework...

ژورنال: تولیدات دامی 2013

هدف از انجام تحقیق حاضر،مقایسۀ روش‏های گوناگون آماری در پیش‌بینی ارزش‏های اصلاحی ژنومیک برای صفاتی با معماری ژنتیکی متفاوت از‌نظر توزیع تأثیرات ژنی و نیز تعداد متفاوت جایگاه‏های صفت کمّی (QTLs) با‌استفاده از شبیه‏سازی کامپیوتری است. بدین منظور، ژنومی حاوی 500 نشانگر تک‌نوکلئوتیدی دوآللی (SNP) روی کروموزومی به طول 100 سانتی‌‌مورگان شبیه‏سازی، و توزیع‏های متفاوت تأثیرات ژنی (یکنواخت، نرمال، و گاما...

2016
Roger L. Vallejo Timothy D. Leeds Breno O. Fragomeni Guangtu Gao Alvaro G. Hernandez Ignacy Misztal Timothy J. Welch Gregory D. Wiens Yniv Palti

Bacterial cold water disease (BCWD) causes significant economic losses in salmonid aquaculture, and traditional family-based breeding programs aimed at improving BCWD resistance have been limited to exploiting only between-family variation. We used genomic selection (GS) models to predict genomic breeding values (GEBVs) for BCWD resistance in 10 families from the first generation of the NCCCWA ...

2016
Xinyue Zhang Daniela Lourenco Ignacio Aguilar Andres Legarra Ignacy Misztal

Genomic Best Linear Unbiased Predictor (GBLUP) assumes equal variance for all single nucleotide polymorphisms (SNP). When traits are influenced by major SNP, Bayesian methods have the advantage of SNP selection. To overcome the limitation of GBLUP, unequal variance or weights for all SNP are applied in a method called weighted GBLUP (WGBLUP). If only a fraction of animals is genotyped, single-s...

Journal: :Crop Journal 2023

Genomic selection (GS) is a powerful tool for improving genetic gain in maize breeding. However, its routine application large-scale breeding pipelines limited by the high cost of genotyping platforms. Although sequencing-based and array-based platforms have been used GS, few studies compared prediction performance among In this study, we evaluated predictabilities four agronomic traits 305 hyb...

2016
Alencar Xavier William M. Muir Katy Martin Rainey

Many economically important traits in plant breeding have low heritability or are difficult to measure. For these traits, genomic selection has attractive features and may boost genetic gains. Our goal was to evaluate alternative scenarios to implement genomic selection for yield components in soybean (Glycine max L. merr). We used a nested association panel with cross validation to evaluate th...

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