SNP marker related to tail type trait of fat tail type sheep, and applications thereof

Abstract

The invention relates to a SNP marker related to the tail type trait of fat tail type sheep, and applications thereof, and belongs to the biological field, wherein the SNP marker is located at the 87804589-th base pair of sheep chromosome 8, the sheep with the base of T at the locus has the short tail trait, and the sheep with the base of G has the normal tail length. The invention further provides primers for detecting the SNP marker, a kit containing the primers, and applications of the SNP marker in identification of the tail type trait of lipid tail type sheep and in breeding of Chinese sheep, wherein the SNP marker related to the tail type trait of fat tail type sheep is screened by using a polymerase chain reaction (PCR) and a sequencing technology, and the genotype of to-be-detectedsheep is detected through a restriction fragment length polymorphism (RFLP) method. According to the present invention, with the SNP marker, the breeding of the dominant species with the tail type trait of fat tail type sheep is performed according to the genotype so as to accelerate the breeding process of the fat tail type sheep.

Description

technical field [0001] The invention relates to a SNP marker related to the tail shape traits of fat-tailed sheep and its application. Background technique [0002] As people's demand for mutton rises, sheep farming has already become a very important part of animal husbandry production. In the sheep raising industry in Inner Mongolia and even my country, an important problem is the fat deposition of sheep tail. About 25% of the sheep breeds in the world belong to the fat tail (rump) type (fat tail / fat rump) sheep breeds. This kind of breed has a super fat accumulation ability in the tail, and some breeds such as Daweihan sheep tail fat content even exceed 25% of the total carcass weight. Before the reform and opening up, sheep tail fat was eaten as edible oil. But now sheep tail fat is rarely used for food, and high-fat meat is gradually neglected. From the perspective of feeding costs and benefits, sheep tails with large fat tails are also used. It is difficult to promo...

AI Technical Summary

Problems solved by technology

In addition, in the cold northern regions, according to the artificial tail docking method, the tail is completely removed, which will lead to the exposure of the anus and vulva, resulting in chilblains, and easy parasites in summer.

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