Accurate matching method utilizing parental genomic information in animal breeding

Abstract

The invention provides an accurate matching method utilizing parental genomic information in animal breeding, and relates to the technical field of animal breeding. According to the method, retained population is evaluated and selected from backup population, and genotyping is performed to classify a male species and a female species; genotypes of different sites of a male individual genome and afemale individual genome are distributed and combined in a matching mode; an expected genotype value of offspring of a matched combination is predicted, wherein the genotypes include an allelic substitution effect and a dominant effect; a parental individual mating combination is optimized according to the predicted genotype value of the offspring; and according to the optimization result of the matching combination, a best paired list of male animals is recommended for specific female animals which need mating. According to the accurate matching method utilizing the parental genomic information in animal breeding, the offspring is produced by optimizing the genotype combination of mating parents to maximize the performance of the selected characters of the matched offspring, so that the performance of the offspring is maximized; and the accurate matching method is combined with a complete animal identification, management, production and genetic improvement platform for animal breeding.

Description

Technical field [0001] The invention relates to the technical field of animal breeding, in particular to a precise selection method using parental genome information in animal breeding. Background technique [0002] Selection is a very important part of animal breeding. It is the process of deciding which male individual to mate with which female individual. The purpose is to make the offspring have better performance. [0003] At present, there is no precise gene matching (GMA) system that combines animal growth identification, management, production and genetic improvement platforms. An accurate GMA system can make full use of the breeding value of each single nucleotide polymorphism marker (SNP) locus in the genome and all the genome information of the dominant deviation effect to predict the total expectation of the offspring of the companion animal Genotype value. Although genetic matching procedures have been applied to animal breeding before this, these procedures can only...

AI Technical Summary

Problems solved by technology

This selection has two disadvantages: one is that the predictions are not very accurate because it cannot know the amount of Mendelian genetic sampling error in the offspring receiving each gamete from each parent

Another reason is that it does not use dominant bias in selective mating (which is not included in EBV), which is one of the main sources of heterosis in animal crossing commercial production systems

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