The invention discloses an EIF4E-SV288
molecular marker for distinguishing a fragrant pig from a
large white pig and a detection technology of the
molecular marker, and belongs to the field of
livestock molecular biology detection. The
molecular marker SV288 is located in a pig
reference genome Sscrofa 11.1 chr8: 121455580-121455867, the length of the molecular marker SV288 is 288bp, and the molecular marker SV288 is contained in a fourth
intron of an EIF4E
gene, has two types of a deletion type (
allele D) and a non-deletion type (
allele I), and corresponds to three genotypes of DD, ID and II. The invention also provides a primer for specifically detecting the molecular marker, a PCR detection method and an application method for distinguishing the fragrant pig from the
large white pig. The detection result shows that the fragrant pig only contains the DD
genotype, and the frequency of the D
allele is 100%;
large white pigs are mainly composed of II and ID genotypes, the frequency of D allele is 30.93%, and the difference between II and ID genotypes is very significant (Plt; the molecular marker is not limited by age, gender and feeding conditions of pigs, the detection method is accurate and reliable, the operation is simple and convenient, and variety distinguishing of fragrant pigs and large white pigs can be efficiently realized.