Genomic selection in poultry breeding using single-step genomic best linear unbiased prediction

Description

Single-step genomic BLUP (ssGBLUP) aims to eliminate the bias in BLUP by considering phenotypic, pedigree, and genomic information jointly. In ssGBLUP this is done by combining pedigree and genomic relationships into a single relationship matrix. ssGLBLUP has become a tool of choice because of high accuracy and ability to utilize existing software. The purpose of this chapter is to review formulas for ssGBLUP, discuss key issues in implementation, and assess lessons from analyses with ssGBLUP.

Table of contents

1 Introduction 2 Single-step genomic evaluation 3 Genomic selection in chickens using ssGBLUP 4 Genome-wide association under ssGBLUP 5 Impact of SNP selection in genomic evaluations 6 Preselection bias and crossbreeding 7 Validation, accuracies, and genetic parameters 8 Conclusions 9 References