Five SNPs markers related to grass carp fructose-1, 6-diphosphatase and application

Abstract

The invention discloses five SNPs markers related to grass carp fructose-1, 6-diphosphatase and application of the five SNPs markers. The SNPs markers are respectively as shown in at least one of SEQ ID NO. 1, SEQ ID NO. 2, SEQ ID NO. 3, SEQ ID NO. 4 and SEQ ID NO. 5. The invention finds that the individual growth traits of which the marker SEQ ID NO.1 is CC genotype and / or the marker SEQ ID NO.3 is AA genotype and / or the marker SEQ ID NO.5 is AC genotype and / or the marker SEQ ID NO.1 is CT genotype, the marker SEQ ID NO.3 is AA genotype and the marker SEQ ID NO.5 is AA genotype have significant advantages, and the SNPs marker can be used for simply and quickly identifying the grass carp with fast growth and slender body type, thereby providing a basis for the molecular marker-assisted selective breeding of the grass carp.

Description

technical field [0001] The invention belongs to the technical field of molecular biology, and specifically relates to five SNPs markers and applications related to fructose-1,6-bisphosphatase of grass carp. Background technique [0002] Grass carp (Ctenopharyngodonidellus) belongs to the Cyprinidae (Leuciscinae) and the Ctenopharyngodon subfamily (Ctenopharyngodon), which has a long history of breeding in my country. In 2018, my country's grass carp aquaculture production reached 5.5 million tons, accounting for 21% of freshwater aquaculture fish production. In my country, grass carp farming is very extensive, and there are a total of 30 provinces (municipalities and autonomous regions) farming. In 2018, Guangdong Province The highest yield of grass carp. Grass carp in natural water is slender, with low fat content and slow growth. Artificially farmed grass carp is mainly fed with compound feed. Although the growth rate is fast, most of the abdominal fat accumulates, which i...

AI Technical Summary

Problems solved by technology

Grass carp in natural water bodies is slender, low in fat, and grows slowly. Artificially raised grass carp is mainly fed with compound feed. Although it grows fast, most of the belly fat accumulates, which is not liked by consumers.

So far, although aquatic workers have made a lot of efforts, there are still no artificially selected fine varieties of grass carp that have passed the identification of the National Fine Variety Approval Committee. In actual production, most of them are directly domesticated from wild species, lacking directional selection, and production. The poor quality of the parents often causes problems such as slow growth, uneven specifications, and poor disease resistance of the offspring, and farmers often face major economic losses. Therefore, breeding high-yield and high-quality grass carp varieties has always been the central goal of grass carp breeding.

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