The correlation between SNPs (linkage disequilibrium) enables much of the variation to be captured despite the inability to genotype all SNPs, and our previous primer 1 described how tagSNPs and ...

This has two effects. First, SNPs some distance from a QTL may show an association to the trait, exacerbating the problem caused by long-range LD in many species of domestic animals. Second ...

This practical is based on using the software package GCTA to estimate the heritability of a trait for which causal SNP effects depend on allele frequency and linkage disequilibrium patterns (Lecture ...