U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 close



Research
                Research Home
                            National Programs
                            Research Projects
                            Scientific Manuscripts
                            International Engagement
                            Scientific Software/Models
                            Databases and Datasets
                            Office of Scientific Quality Review
            Media
                News & Features
                            Multimedia
                            Briefing Room
                            Down on the Farm
                            Press Room
                            Science in Your Shopping Cart
                            Scientific Discoveries
                            Tellus
                            Under the Microscope
            About ARS
                About ARS Home
                            Staff Directory
                            Labs and Research Centers (Map)
                            Headquarter Offices
                            Organizational Chart
                            Employee Services (REE Employees Only)
                            Office of Outreach, Diversity, and Equal Opportunity
            Work With Us
                Work With Us Home
                            ARS Vacancies at USAJOBS
                            Careers at ARS Information
                            Scientific Collaborations
                            Extramural Agreements
                            1890 Faculty Research Sabbatical ProgramSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Research Publications at this Location





- ARS National Programs
- Search for a scientific manuscript
- Search for a research project
- ARS Software
- Programs and Projects
- Collaborations
- Subjects of Investigation
- Publications

Title:   Author  item
                                            Van Tassell, Curtis

                                                         - *Curt*item
                                            Sonstegard, Taditem
                                            MATUKUMALLI, LAKSHMI - GEORGE MASON UNIVERSITYitem
                                            Vanraden, Paulitem
                                            Wiggans, George
  Submitted to: Brazilian Animal Science Society
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 7/22/2008
                                    Publication  Date: 8/1/2008
                                    Citation: Silva, M.V., Van Tassell, C.P., Sonstegard, T.S., Matukumalli, L., Van Raden, P.M., Wiggans, G.R. 2008. Predicion of total genetic value using a 50K SNP chip in Holstein breed. Brazilian Animal Science Society.Interpretive Summary:
                                Technical Abstract: 
Genomic selection is a form of marker-assisted selection in which genetic markers covering the whole genome are used in which all quantitative trait loci (QTL) are in linkage disequilibrium with at least one marker. The use of genomic selection approach has become feasible thanks to the large number of single nucleotide polymorphisms (SNP) discovered by genome sequencing and new methods to efficiently genotype large number of SNP as the new Illumina iSelect Bovine 50K Chip. With genomic selection, selection can be based on the sum of estimates of effects of all markers across the genome, fitted as random effects. The objective of this paper was estimate the genomic breeding value of 474 Holstein young bulls predicted from a large number of estimated single marker effects across the whole genome using the PTA milk from 2378 bulls were borne before 2000. The marker effects were estimated by BLUP estimation (ridge regression) and Bayesian method that assumed a prior distribution of the variance associated with each chromosome. It was concluded that methods that assumed a prior distribution for the variance associated with each chromosome segment gave more accurate predictions of breeding values than traditional methods.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov