SNP molecular marker influencing weaning weight character of merino and application of SNP molecular marker

Abstract

The invention belongs to the technical field of molecular genetics, and particularly relates to an SNP molecular marker influencing weaning weight character of merinos and application. The SNP molecular marker is located at the 3566348 nucleotide site T / C mutation on the 23<rd> chromosome of the international sheep reference genome Oar_v4.0 version. The invention further relates to a specific primer pair for detecting the SNP molecular marker by using a PCR technology, a kit containing the primer pair, and a nucleotide polymorphism detection method. Compared with a traditional detection method, the technology has the advantages of high accuracy, high detection speed, low cost, easiness in result judgment and the like. SNP locus detection is used for carrying out early selection of the weaning weight characters of high-mountain merinos, shortening the breeding period and accelerating the breeding process, an early selection technology of the weaning weight characters of the high-mountain merinos is established, the breeding time of the excellent weaning weight characters of the high-mountain merinos is shortened, the breeding cost is reduced, and the application value is very high.

Description

technical field [0001] The invention belongs to the technical field of molecular genetics, and in particular relates to a SNP molecular marker affecting the weaning weight traits of Alpine Merino sheep and its application. Background technique [0002] For breeding stock, fecundity is productivity, and reproductive performance is directly related to the economic effect of animal husbandry industry. The reproductive performance of sheep mainly includes indicators such as the total number of lambs born, the number of live lambs born, newborn weight, newborn litter weight, and weaning weight. The birth weight of sheep is the birth weight of sheep, which is an important quantitative trait to measure sheep, and affects the growth and development, production performance and carcass grade of sheep. Birth weight was also positively correlated with weaning survival rate, weaning weight and slaughter weight, and negatively correlated with slaughter age. Moreover, sheep with low birt...

AI Technical Summary

Problems solved by technology

Traditional breeding methods mostly use traditional phenotypic breeding techniques, that is, to infer parental productivity based on offspring phenotype information, long breeding cycle, and slow genetic progress

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