Related Experiment Video
Updated: Apr 25, 2026

A PCR-based Genotyping Method to Distinguish Between Wild-type and Ornamental Varieties of Imperata cylindrica
Published on: February 20, 2012
Identification of differential selection traces in two Polish cattle breeds
Artur Gurgul1, Klaudia Pawlina, Monika Frys-Żurek
1Laboratory of Genomics, National Research Institute of Animal Production, Balice, Poland.
Abstract:
Genetic improvement of animals based on artificial selection is leading to changes in the frequency of genes related to desirable production traits. The changes are reflected by the neutral, intergenic single nucleotide polymorphims (SNPs) being in long-range linkage disequilibrium with functional polymorphisms. Genome-wide SNP analysis tools designed for cattle, allow for scanning divergences in allelic frequencies between distinct breeds and thus for identification of genomic regions which were divergently selected in breeds' histories. In this study, by using Bovine SNP50 assay, we attempted to identify genomic regions showing the highest differences in allele frequencies between two distinct cattle breeds - preserved, unselected Polish Red breed and highly selected Holstein cattle. Our study revealed 19 genomic regions encompassing 55 protein-coding genes and numerous quantitative trait loci which potentially may underlie some of the phenotypic traits distinguishing the breeds.
More Related Videos
06:18Frequency and Distribution of Crossovers in Caenorhabditis elegans Meiosis by SNP Genotyping using Real-time PCR
Published on: July 11, 2025
07:46Author Spotlight: Improving Beef Cattle Nutrition and Production with a Focus on Feed Efficiency and Meat Quality Traits Through Advanced Biochemical and Molecular Assays
Published on: July 12, 2024
Related Concept Videos
Pedigree Analysis
Pedigree Analysis
Types of Selection
Incomplete Dominance
Differential Staining Technique
Test Cross