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SNP (single nucleotide polymorphism) marker relevant to Duroc breeding pig backfat thickness and purpose thereof

A technology of pig backfat thickness and molecular markers, which is applied in the field of molecular biotechnology and molecular markers, can solve the problems of large distance span and limited application, and achieve the effect of improving economic benefits, increasing corporate profits, and enhancing core competitiveness

Active Publication Date: 2018-07-27
SOUTH CHINA AGRI UNIV
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Problems solved by technology

However, due to the randomness of the selection of candidate genes in the candidate gene method, they may be the main gene, or the gene that is in close linkage disequilibrium with the actual QTL and indirectly affects the traits, which brings new problems to livestock breeding. In addition, the selection of the candidate gene method also has population heterogeneity; while the QTL genetic distance obtained by QTL mapping has a large span, often including hundreds of genes, which greatly limits the application of QTL mapping methods in important economic traits of livestock. Applications in Genetic Improvement

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  • SNP (single nucleotide polymorphism) marker relevant to Duroc breeding pig backfat thickness and purpose thereof
  • SNP (single nucleotide polymorphism) marker relevant to Duroc breeding pig backfat thickness and purpose thereof
  • SNP (single nucleotide polymorphism) marker relevant to Duroc breeding pig backfat thickness and purpose thereof

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0033] The above-mentioned purpose of the invention of the present invention is specifically achieved like this:

[0034] 1. Experimental animals

[0035] The experimental pig group used in the present invention is 2,312 purebred American Duroc breeds from the Breeding Pig Branch of Guangdong Wens Food Group Co., Ltd., which is the core group of the Breeding Pig Branch, and the group pedigree records are detailed. The pigs have free access to food and water, and the entire feeding method and feeding conditions are always consistent, which is a conventional method.

[0036] 2. Phenotype Data Acquisition

[0037] By B-ultrasound instrument, the thickness of backfat when each pig reaches 100kg body weight is measured as the phenotype value of backfat traits.

[0038] 3. ...

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Abstract

The invention belongs to the technical field of molecular biological techniques and molecular markers, and relates to an SNP (single nucleotide polymorphism) molecular marker relevant to Duroc breeding pig backfat thickness. The site of the SNP marker is 81306158th nucleotide site on a No. 2 chromosome of international pig reference genome 11.1 version; the basic group of the site is A or C. By preferably selecting the advantage allelic genes of the SNP, the genetic progress of the Duroc backfat thickness can be accelerated, so that the economic benefits of breeding pig breeding are effectively improved.

Description

technical field [0001] The invention belongs to the technical fields of molecular biotechnology and molecular markers, and relates to a molecular marker affecting the backfat thickness of Duroc breeding pigs and its application. Background technique [0002] The backfat thickness of pigs refers to the thickness of subcutaneous fat in pigs. Subcutaneous fat is the subcutaneous fat tissue located below the dermis and above the fascia layer. Breeding enterprises usually measure the backfat thickness when the breeding pig reaches 100kg body weight. The measurement position is located in the penultimate 3rd-4th intercostal space, 5cm away from the midline of the back on the left side. The B-type ultrasonic instrument is used to form an acoustic image, and then the backfat is calculated by computer thickness. [0003] Backfat thickness is an important index to measure the growth performance of pigs. If the backfat thickness is too high or too low, it will have a great impact on t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12Q1/6888C12N15/11
CPCC12Q1/6888C12Q2600/124C12Q2600/156
Inventor 吴珍芳杨杰阮晓芳蔡更元丁荣荣郑恩琴
Owner SOUTH CHINA AGRI UNIV
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