نتایج جستجو برای: bayesc

تعداد نتایج: 24  

2012
Olivier Demeure Olivier Filangi Jean-Michel Elsen Pascale Le Roy

BACKGROUND The QTLMAS XVth dataset consisted of the pedigrees, marker genotypes and quantitative trait performances of 2,000 phenotyped animals with a half-sib family structure. The trait was regulated by 8 QTL which display additive, imprinting or epistatic effects. This paper aims at comparing the QTL mapping results obtained by six participants of the workshop. METHODS Different regression...

Journal: :Genetics Selection Evolution 2021

Abstract Background Streptococcosis is a major bacterial disease in Nile tilapia that caused by Streptococcus agalactiae infection, and development of resistant strains represents sustainable approach towards combating this disease. In study, we performed controlled trial on 120 full-sib families to (i) quantify characterize the potential genomic selection for survival S. infection tilapia, (ii...

Journal: :Journal of animal science 2018
K R Schweer S D Kachman L A Kuehn H C Freetly E J Pollak M L Spangler

Feed costs comprise the majority of variable expenses in beef cattle systems making feed efficiency an important economic consideration within the beef industry. Due to the expense of recording individual feed intake phenotypes, a genomic-enabled approach could be advantageous towards improving this economically relevant trait complex. A genome-wide association study (GWAS) was performed using ...

ژورنال: :علوم دامی ایران 2012
مسعود شیرعلی سیدرضا میرایی آشتیانی عباس پاکدل کریس هیلی ریکاردو پونگ ونوگ

ژنومی حاوی 1000 چند شکلی تک نوکلئوتیدی دو آللی روی یک کروموزوم به طول 100 سانتی مورگان شبیه سازی شد و توزیع های مختلف واریانس ژن های عمده اثر (یکنواخت، نرمال و گاما) و نیز تعداد ژن های عمده اثر متنوع (5، 10 و 20) به صورت فرضیات شبیه سازی صفات در نظر گرفته شدند و در نتیجه 9 صفت متفاوت ایجاد گردید. مقایسه بین ارزش های اصلاحی ژنومی برآورد شده به وسیله bayesc و gblup نشان داد که ارزش های اصلاحی ژنو...

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...

ژورنال: علوم دامی ایران 2012
ریکاردو پونگ ونوگ سیدرضا میرایی آشتیانی عباس پاکدل, مسعود شیرعلی کریس هیلی

ژنومی حاوی 1000 چند شکلی تک نوکلئوتیدی دو آللی روی یک کروموزوم به طول 100 سانتی مورگان شبیه‌سازی شد و توزیع‌های مختلف واریانس ژن‌های عمده اثر (یکنواخت، نرمال و گاما) و نیز تعداد ژن‌های عمده اثر متنوع (5، 10 و 20) به صورت فرضیات شبیه‌سازی صفات در نظر گرفته شدند و در نتیجه 9 صفت متفاوت ایجاد گردید. مقایسه بین ارزش‌های اصلاحی ژنومی برآورد شده به وسیله BayesC و GBLUP نشان داد که ارزش‌های اصلاحی ژن...

Journal: :Scientific Reports 2021

Abstract Markers are an important tool in plant breeding, which can improve conventional phenotypic generating more accurate information outcoming better decision making. This study aimed to apply and compare the fit of different Bayesian models BRR, BayesA, BayesB, BayesB (setting value from very low $$\pi$$ π </mml:mat...

Journal: :Euphytica 2021

Abstract Genetic improvement of quality traits in tea ( Camellia sinensis (L.) O. Kuntze) through conventional breeding methods has been limited, because is a difficult and expensive trait to measure. Genomic selection (GS) suitable for predicting such complex traits, as it uses genome wide markers estimate the genetic values individuals. We compared prediction accuracies six genomic models inc...

This study aimed to investigate the  effect  of  the method of estimating the effects of markers , QTLs distribution, number of QTLs, effective population size and trait heritability on the accuracy of genomic predictions. Two effective population sizes, 100 and 500 individuals, were simulated by QMSim software. A 100 cM genome including one chromosome was simulated where 500 SNPs and two diffe...

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