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A kind of snp marker related to the backfat thickness of Duroc breeding pigs and its application

A technology of thick backfat and thick backfat of pigs, which is applied in the field of molecular biotechnology and molecular markers, can solve the problems of large distance span and limited application, etc., and achieve the effect of improving economic benefits, increasing corporate profits, and increasing lean meat percentage

Active Publication Date: 2018-12-21
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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  • A kind of snp marker related to the backfat thickness of Duroc breeding pigs and its application
  • A kind of snp marker related to the backfat thickness of Duroc breeding pigs and its application
  • A kind of snp marker related to the backfat thickness of Duroc breeding pigs and its application

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Embodiment Construction

[0032] Hereinafter, the present invention will be further described in detail with reference to the examples and drawings, but the implementation of the present invention is not limited thereto.

[0033] The above-mentioned object of the present invention is specifically achieved as follows:

[0034] 1. Laboratory animals

[0035] The experimental pig herd group used in the present invention is 2312 purebred American Duroc breeds of the breeding pig branch of Guangdong Wen's Food Group Co., Ltd., which is the core group of the breeding pig branch, and the group system spectrum records are detailed. The pigs eat and drink freely, and the entire feeding method and feeding conditions are always consistent, which is a conventional method.

[0036] 2. Phenotypic data collection

[0037] Using a B-ultrasound instrument, the backfat thickness of each pig at a weight of 100kg was measured as the phenotypic value of backfat traits.

[0038] 3. Sample collection

[0039] Collect the piglet tail an...

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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. The invention relates to a molecular marker that affects the back fat thickness of Duroc pigs and its use. Background technique [0002] Backfat thickness of pigs refers to the thickness of subcutaneous fat of pigs. Subcutaneous fat is the subcutaneous fat tissue located below the dermis layer and above the fascia layer. Breeding companies usually measure the back fat thickness when the breeding pig reaches 100kg weight. The measurement position is located at the last 3-4 intercostal space and 5 cm from the left side of the back midline. The ultrasound image is formed by a B-mode ultrasound system, and the back fat is calculated by a computer. thickness. [0003] Backfat thickness is an important indicator to measure the growth performance of pigs. Too high or too low backfat thickness will have a greater impact on the growth performance and reproductive performan...

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Application Information

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Patent Type & Authority Patents(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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