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Method for assisted selection of high-litter-size rex rabbits by using SNPs

An auxiliary selection, rex rabbit technology, applied in the field of genetic breeding, can solve the problems of low selection efficiency, poor selection accuracy, long selection cycle, etc., and achieve the effects of improving efficiency, solving poor accuracy, and low cost

Inactive Publication Date: 2020-07-31
SHANXI AGRI UNIV
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Problems solved by technology

[0016] In summary, the traditional breeding of rabbits mainly adopts the conventional breeding method of phenotype selection, which has the disadvantages of poor selection accuracy, low selection efficiency, large manpower and material resources, and long selection cycle; In the field of breeding, especially in the field of reproductive traits, the use of molecular marker-assisted breeding has not yet been reported, and further exploration is needed

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  • Method for assisted selection of high-litter-size rex rabbits by using SNPs
  • Method for assisted selection of high-litter-size rex rabbits by using SNPs
  • Method for assisted selection of high-litter-size rex rabbits by using SNPs

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work, any modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the present invention Inside.

[0042] Such as figure 1 As shown, this embodiment discloses a method for using SNPs to assist in the selection of high litter size Rex rabbits, the steps are as follows:

[0043] (1) Formation of reference groups

[0044] The reference population for SNPs screening and development consisted of 170 individuals from two Rex rabbit strains (White Rex Rabbit and Beaver Rex Rabbit).

[0045...

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Abstract

The invention discloses a method for assisted selection of high-litter-size rex rabbits by using SNPs, which selects high-litter-size female rex rabbits by using specific SNP mutation in an FSH beta gene, and comprises the following steps: S1, establishing a target female rex rabbit group; S2, collecting the DNA of all female rabbits in the target female rex rabbit group; S3, performing genotypingon the target SNP site; S4, selecting female rabbits with specific genotypes according to breeding targets; S41, when the female rabbits with high litter size and live litter size are selected, selecting the female rabbits with the FSH30 locus genotype of AA, and eliminating the female rabbits with the genotype of GG; S42, when the female rabbits with higher birth nest weight are selected, selecting the female rabbits with the FSH2 locus genotype of GG, and eliminating the female rabbits with the FSH2 locus genotype of TT, and selecting female rabbits with the genotype of the FSH31 site beingGG, and eliminating female rabbits with the genotype of the FSH31 site being AA; and S5, performing comprehensive sorting based on breeding values, and performing hybridization to generate offspring.

Description

technical field [0001] The invention relates to the field of genetic breeding, in particular to a method for assisting selection of rex rabbits with high litter size by using SNPs. Background technique [0002] Rex rabbit, whose scientific name is Rex rabbit, is a world famous breed of rabbit for fur. my country is the world's largest breeding country for rex rabbits. According to the survey and statistics in 2013, the number of breeding rex rabbits in my country has surpassed that of fur rabbits, becoming the second only to meat rabbits. The breeding area involves 26 provinces, municipalities and autonomous regions across the country, with a wide distribution of varieties and a fast development speed. The annual breeding volume reaches more than 100 million, and the slaughter volume reaches 70 million. Rex rabbit has the characteristics of "short, flat, dense, fine, beautiful and fast" in its coat, and its fur products are colorful and do not need artificial dyeing, so it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16B20/20G16B20/30G16B20/50C12Q1/6869
CPCG16B20/20G16B20/30G16B20/50C12Q1/6869
Inventor 牛晓艳郑建婷曹亮李燕平冯国亮詹海杰任克良张来宝
Owner SHANXI AGRI UNIV
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