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Method for assistant selection of goose muscle fatty acid performances by utilizing molecular markers

A molecular marker-assisted, fatty acid technology, applied in the field of animal genetic engineering, can solve the problems that the field of molecular marker selection is still blank, and the effective evaluation and selection method for fatty acid traits of goose muscle has not been proposed, so as to accelerate the progress of genetic breeding, shorten the generation interval, Accurate effect

Inactive Publication Date: 2013-06-12
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there are few reports on the marker-assisted selection of goose muscle fatty acid traits in the world, and no effective evaluation and selection methods for goose muscle fatty acid traits have been proposed, which is still blank in the field of molecular marker selection for goose muscle fatty acid traits.

Method used

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  • Method for assistant selection of goose muscle fatty acid performances by utilizing molecular markers
  • Method for assistant selection of goose muscle fatty acid performances by utilizing molecular markers
  • Method for assistant selection of goose muscle fatty acid performances by utilizing molecular markers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: (selection of the fatty acid character of Zhedong white goose muscle)

[0038] (1) Goose THRSP according to GenBank No. EU710582.1 α Gene sequence design primers:

[0039] The upstream primer sequence is ASF: 5'-GTGCTGCCTGTACCGTCCAA-3';

[0040] The downstream primer sequence is ASR: 5'-GGGAAGCAGTTACACCATCAGAG-3';

[0041] (2) PCR amplification reaction: Select 150 individuals from the East Zhejiang White Goose population as the reserved species, collect blood from the wing veins of each individual, extract blood genomic DNA according to the conventional phenol-chloroform method, and use the above primers and genomic DNA The template was subjected to PCR amplification reaction, and the reaction system used was 25 μL: 10×PCR Buffer (Mg 2+ plus) 2.5 μL, 2.5 mmol L -1 dNTP 3.0 μL, 10 μmol L -1 Upstream primer 0.4 μL, 10 μmol L -1 Downstream primer 0.4 μL, 50 ng·μL -1 Template DNA 0.5 μL, 5.0U·μL -1 rTaq enzyme 0.25 μL, ddH 2 O 17.95 μL; PCR am...

Embodiment 2

[0049] Embodiment 2: (selection of Lande goose muscle fatty acid character)

[0050] In this example, the PCR amplification reaction in step (2) is: select 200 individuals of the reserved species in the Lande goose population, and the reaction system used is 25 μL: 10×PCR Buffer (Mg 2+ plus) 2.5 μL, 2.5 mmol L -1 dNTP 2.0 μL, 10 μmol L -1 Upstream primer 0.5 μL, 10 μmol L -1 Downstream primer 0.5 μL, 50 ng·μL -1 Template DNA 0.5 μL, 5.0U·μL -1 rTaq enzyme 0.15 μL, ddH 2 O 18.85 μL; PCR amplification reaction condition is 95 o C pre-denaturation 5 min, 95 o C Denaturation 30s, 55 o C annealing 30s, 72 o C extension 30s, 35 cycles, 72 o C extension 10 min, 4 o C finishes reaction; All the other steps (1), (3), (4) and technology are the same as embodiment 1;

[0051] Here we take 10 individuals of the reserved species as an example. The 10 Lande geese were first measured for the relative content of muscle fatty acids in each individual, and then PCR amplified the p...

Embodiment 3

[0056] Embodiment 3: (selection of Jiangshan white goose muscle fatty acid character)

[0057] In this example, the PCR amplification reaction of step (2) is: select 100 individuals of the reserved species from the Jiangshan White Goose population, and the reaction system used is 25 μL: 10×PCR Buffer (Mg 2+ plus) 2.5 μL, 2.5 mmol L -1 dNTP 1.0 μL, 10 μmol L -1 Upstream primer 0.6 μL, 10 μmol L -1 Downstream primer 0.6 μL, 50 ng·μL -1 Template DNA 0.5 μL, 5.0U·μL -1 rTaq enzyme 0.35 μL, ddH 2 O 19.45μL; PCR amplification reaction condition is 95 o C pre-denaturation 5 min, 95 o C Denaturation 30s, 50s o C annealing 30s, 72 o C extension 30s, 38 cycles, 72 o C extension 10 min, 4 o C finishes reaction; All the other steps (1), (3), (4) and technology are the same as embodiment 1;

[0058] Here we take 10 individuals of the reserved species as an example. The 10 Jiangshan white geese first measured the relative content of fatty acids in each individual muscle, and t...

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Abstract

The invention discloses a method for assistant selection of goose muscle fatty acid performances by utilizing molecular markers and belongs to the technical field of animal genetic engineering. The method comprises the following steps of: (1), designing a special primer of a goose THRSP (Thyroid Hormone Response Gene) alpha gene segment; (2), carrying out PCR (Polymerase Chain Reaction) amplification; (3), carrying out polymorphic analysis to a PCR product; and (4), selecting superior goose parent individuals. According to the method for assistant selection of goose muscle fatty acid performances by utilizing molecular markers disclosed by the invention, the goose muscle fatty acid performances can be selected according to a gene type; the method has the characteristics of being high in precision, simple to operate, low in selection cost (about 0.3 RMB per goose) and the like; and the slaughter performances can be selected at the early life stage of the goose, so that the generation interval is shortened, the breeding process of the goose is quickened up, and each generation can be shortened by about three months. The method can be popularized and applied in the goose quality breeding field.

Description

technical field [0001] The invention relates to the technical field of animal genetic engineering, in particular to the cloning of genes related to goose muscle fatty acid traits and its application in marker-assisted selection. Background technique [0002] Fatty acid is an important chemical substance that constitutes fat and an important part of tissue cells. The composition of fatty acids in muscle fat not only affects the flavor of meat, but also is related to the health of consumers. According to nutritional research, the content of blood lipid and blood cholesterol in human body is affected by the composition of fatty acids in the diet. Among them, saturated fatty acids cause blood lipids to rise, while unsaturated fatty acids have the effect of lowering blood cholesterol. Epidemiological studies have found that dietary fat content and fatty acid composition are directly related to cardiovascular disease (Williams, 2000). Therefore, as one of the important indicators...

Claims

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Application Information

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IPC IPC(8): C12Q1/68
Inventor 李国勤卢立志田勇沈军达陶争荣李进军王德前陈黎徐坚
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES