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Method for rapidly selecting beef cattle ancestor for breeding

A rapid selection, beef cattle technology, applied in the direction of biochemical equipment and methods, microbial measurement/inspection, instruments, etc., can solve problems such as encountering obstacles, achieve efficient and accurate selection, solve inbreeding depression, and accurate and reliable calculation results Effect

Pending Publication Date: 2019-10-11
INST OF ANIMAL HUSBANDRY & VETERINARY MEDICINE HENAN ACAD OF AGRI SCI
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These efforts are hampered when genealogy information is not clear

Method used

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  • Method for rapidly selecting beef cattle ancestor for breeding
  • Method for rapidly selecting beef cattle ancestor for breeding
  • Method for rapidly selecting beef cattle ancestor for breeding

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Embodiment 1

[0026] 50 bulls (numbered 1 to 50) and 150 cows (numbered 51 to 200) are involved in the method for rapid selection of breeding beef cattle ancestors in the present embodiment, specifically comprising the following steps:

[0027] 1. SNP development

[0028] The genome-wide single nucleotide polymorphism markers were developed for the individual cattle to be bred, and a total of 50,000 SNPs were developed in this embodiment.

[0029] 2. Cattle population cluster analysis

[0030] According to the genotype data of the whole genome of the individual, the Nei’s genetic distance between individuals was calculated by using the “stamppNeisD” function in the R language “StAMPP” data package. Through the "hclust" function of the R language, the longest distance method is used to perform cluster analysis on all individuals according to the Nei's genetic distance between individuals, and the results are displayed in a dendrogram. The cutree function of the R language was used to set t...

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Abstract

The invention relates to a method for rapidly selecting a beef cattle ancestor for breeding, and belongs to the technical field of beef cattle breeding. According to the method for rapidly selecting the beef cattle ancestor for breeding, genome information, genetic relationship, cluster analysis, characterization data and the like are comprehensively utilized for grouping and individual selection,and the method can be used for breeding beef cattle new strains through an ancestor line establishing method, and inbreeding is avoided. The method has the advantages that firstly, the genetic distance of a to-be-selected group is calculated on the basis of the whole genome data, and the calculation result is accurate and reliable; secondly, cluster analysis is conducted on the basis of the genetic distance, and grouping can be conducted accurately and rapidly, and the theoretical basis is provided for avoiding inbreeding in the breeding process; thirdly, genotype and phenotypic data is combined to determine the ancestor, and selection is more efficient and accurate; fourthly, a subgroup where the ancestor is located can be rapidly determined, and the inbreeding depression problem is solved.

Description

technical field [0001] The invention relates to a method for rapidly selecting the progenitors of beef cattle for breeding, and belongs to the technical field of beef cattle breeding. Background technique [0002] The beef cattle industry plays an important role in improving the dietary structure of residents. my country has a long history of beef cattle breeding. At present, traditional breeding methods are mostly used, that is, selection based on phenotypic traits. This method is based on traits and pedigree information during the breeding process to avoid inbreeding depression and maintain genetic diversity. However, there are often incomplete or no pedigree records in production practice, resulting in inaccurate breeding. Moreover, breeding is only based on phenotype, without considering genotype data, resulting in inaccurate and low efficiency of breeding. [0003] In addition, in the breeding process of this breed, the strain breeding technology plays an important ro...

Claims

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Application Information

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IPC IPC(8): C12Q1/6888G06K9/62G16B20/00
CPCC12Q1/6888G16B20/00C12Q2600/156C12Q2600/124G06F18/23
Inventor 吕世杰陈付英张子敬滑留帅王二耀徐照学魏成斌施巧婷柏中林王泰峰
Owner INST OF ANIMAL HUSBANDRY & VETERINARY MEDICINE HENAN ACAD OF AGRI SCI