METHOD OF DETECTING GENE MUTATION ASSOCIATED WITH CHICKEN EGGSHELL STRENGTH

摘要

It is intended to reveal the existence of a gene associated with a chicken eggshell strength, to specify what gene mutation leads to the improvement of eggshell strength, and to provide a technique of discriminating a chicken which gives eggs with a high eggshell strength by detecting the gene mutation. The inventors produced an F2 hybrid strain whose parents were a strain with weak eggshell and a strain with strong eggshell and performed a QTL (quantitative trait loci) analysis for elucidating a gene associated with an eggshell strength. As a result, QTL associated with an eggshell strength was found on the 9th chromosome. Further, they found that ovocalyxin-32 gene is involved in a trait associated with an eggshell strength, and a single nucleotide polymorphism (SNP) accompanied with amino acid residue substitution is present in the 6th exon, and thus the invention has been completed.