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ARS Home » Plains Area » Fort Collins, Colorado » Center for Agricultural Resources Research » Agricultural Genetic Resources Preservation Research » Research » Publications at this Location » Publication #347683

Research Project: National Animal Germplasm Program

Location: Agricultural Genetic Resources Preservation Research

Title: The role of Genetic Drift and Selection Intensity on Small Populations: Sensitivity and Genomic Analysis

item Blackburn, Harvey
item Wilson, Carrie - Welsh
item Krehbiel, Bethany
item PAIVA, SAMUEL - Embrapa

Submitted to: World Congress of Genetics Applied in Livestock Production
Publication Type: Proceedings
Publication Acceptance Date: 12/1/2017
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Impacts of genetic drift (GD) were evaluated using molecular markers and the ability of breeders to achieve selection goals for small populations. Molecular analysis demonstrated that GD occurs at a rapid rate in populations similar to rare breeds. The sensitivity analysis demonstrated the difficulty breeders with small populations or rare breeds will have in achieving selection goals. However, with high selection intensities progress toward selection goals can be made but at slower rates of genetic gain. Key words: Genetic drift, Small populations, Genetic resources