نتایج جستجو برای: breeding methods
تعداد نتایج: 1926908 فیلتر نتایج به سال:
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The purpose of this study was to compare the accuracy of genomic evaluation for Bayes A, Bayes B, Bayes C and Bayes L multi-step methods and SSBR-C and SSBR-A single-step methods in the different values of π for predicting genomic breeding values of the genotyped and non-genotyped animals. A genome with 40000 SNPs on the 20 chromosom was simulated with the same distance (100cM). The π valu...
Wilt caused by Fusarium oxysporum f.sp. ricini (Wr) Gordon is one of the major yield losing diseases in castor. Cultivating wilt resistant cultivars is an effective strategy to control the disease. Utilization of diverse sources of stable resistance is a prerequisite for durable resistance breeding. The experiment was conducted to identify genetically diverse resistant sources in castor germpla...
When comparing different breeding programs the first question usually asked is "what are the expected responses to selection of the various plans". A considerable part of this course will focus on methods of designing breeding programs, which maximize response to selection. Although breeding plans are often quite complex, most can usually be understood in terms of a few simple principles of res...
1 Wildlife Biologist, Institute of Arctic Biology, University of Alaska, Fairbanks, AK 99705 2 Wildlife Biologist, U.S. Fish and Wildlife Service, U.S. Department of Interior, 2800 Cottage Way, Room E1803, Sacramento, CA 95825 Abstract: Evidence of breeding and natal dispersal in alcids is typically provided by the resightings of banded birds, the establishment of new colonies, and/or evidence ...
Background Migrants have been hypothesised to use different migration strategies between seasons: a time-minimization strategy during their pre-breeding migration towards the breeding grounds and an energy-minimization strategy during their post-breeding migration towards the wintering grounds. Besides season, we propose body size as a key factor in shaping migratory behaviour. Specifically, gi...
Objectives: The aim of the present study was evaluation the relationship between solidarity and flexibility of the family and the styles of parenting to the severity of the stress of mothers in Child Breeding in the district 1 of Tehran. Method: The statistics community of this study included mothers of children aged between 3 to 6 years, and also these mothers have taken their children to the ...
BACKGROUND Genomic selection (GS) is emerging as an efficient and cost-effective method for estimating breeding values using molecular markers distributed over the entire genome. In essence, it involves estimating the simultaneous effects of all genes or chromosomal segments and combining the estimates to predict the total genomic breeding value (GEBV). Accurate prediction of GEBVs is a central...
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...
Replacement of the average numerator relationship matrix derived from the pedigree with the realized genomic relationship matrix based on DNA markers might be an attractive strategy in forest tree breeding for predictions of genetic merit. We used genotypes from 3461 single-nucleotide polymorphism loci to estimate genomic relationships for a population of 165 loblolly pine (Pinus taeda L.) indi...
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