Insulin-like growth factor receptor 2 genetic locus capable of increasing weight of carp

A growth factor receptor and insulin-like technology, applied in the field of fish molecular assisted breeding, can solve the problems of mixed germplasm, uneven size of adult fish, and low economic benefits

Inactive Publication Date: 2013-11-13
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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  • Abstract
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Problems solved by technology

[0004] In carp production, the phenomenon of germplasm mixing is relatively serious, resulting in uneven adult fish

Method used

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  • Insulin-like growth factor receptor 2 genetic locus capable of increasing weight of carp
  • Insulin-like growth factor receptor 2 genetic locus capable of increasing weight of carp
  • Insulin-like growth factor receptor 2 genetic locus capable of increasing weight of carp

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Example Embodiment

[0022] According to the characteristics of molecular assisted breeding, in order to control the experimental error, it is required that the environmental factors such as nutrition should be kept as consistent as possible during the whole breeding process. The specific operation steps are as follows:

[0023] (1) The carp selected in this experiment were all cultured in the Yixing Qiting Breeding Experimental Base of the Freshwater Fishery Research Center of the Chinese Academy of Fishery Sciences, and the randomly selected experimental groups were groups of three consecutive generations. Select a group of three consecutive generations that have been selected through family selection and randomly selected. A total of 108 samples were selected for the experiment, and the samples came from different generations. Among them, 40 samples were taken from generation one F1, 28 samples were taken from generation two F2, and 40 samples were taken from generation three F3. When weighing...

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Abstract

The invention relates to an insulin-like growth factor receptor 2 genetic locus capable of remarkably increasing the weight of carp and belongs to the field of fish breeding. The insulin-like growth factor receptor 2 genetic locus is a molecular marker which is capable of remarkably increasing the weight of carp; the proportion of hybrids of the marker is in accordance with the order by magnitude of weights of different generations of carps; according to the principle, the growth performance of a group can be improved by increasing the proportion of hybrids in the group.

Description

[0001] Technical field [0002] The present invention involves an insulin -like growth factor receptor 2 gene site that can significantly increase the weight of carp. It is a way to consider significantly increased carp weight from the perspective of molecular labeling. It belongs to the field of fish molecular auxiliary breeding. [0003] Background technique [0004] The phenomenon of germplasm in carp production is more serious, resulting in uneven specifications and low economic benefits, and increasing growth rate is still the main problem for fishery production.The insulin -like growth factor system that is closely related to growth is a type of small molecular single -chain polypeptide substance, which has been proven to have an important regulatory effect on growth and development among various animals, including insulin -like growth factorGrowth factors bind to protein, insulin -like growth factor 1 receptor and insulin -like growth factor 2 receptor.Among them, the IGF2...

Claims

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Application Information

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IPC IPC(8): C12N15/11C12Q1/68
Inventor 苏胜彦袁新华徐跑
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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