Prolactin gene SNP molecular marker related to Muscovy duck egg laying traits and application of prolactin gene SNP molecular marker

Abstract

The invention discloses a prolactin gene SNP (Single Nucleotide Polymorphism) molecular marker related to egg laying traits of Muscovy ducks and application of the prolactin gene SNP molecular marker, and belongs to the technical field of biology, the molecular marker comprises SNP5, SNP6 and / or SNP7; wherein the SNP5 is located at a Chr2: 48996109 site of a sequence as shown in SEQ ID No.1, and an allele is C > A; the SNP6 is located at a Chr2: 48996350 site of a sequence as shown in SEQ ID No.1, and an allele is T > C; the SNP7 is located at a Chr2: 48996351 site of a sequence as shown in SEQ ID No.1, and an allele is insertion / deletion; the invention can accurately identify the egg laying traits of Muscovy ducks of different weeks old, and provides a new molecular marker for molecular marker-assisted selective breeding.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to a prolactin gene SNP molecular marker related to egg-laying traits of muscovy ducks and an application thereof. Background technique [0002] Muscovy duck (Cairina moschata) is a special water bird, which comes from a different genus from the domestic duck. It has the advantages of strong heat resistance and high meat production, but its egg production performance is low. The peak egg production period of Muscovy ducks is between 35 and 53 weeks, covering most of the egg production period. Although muscovy ducks have been cultivated on a large scale in China, their egg production performance is poor and lack of systematic breeding, resulting in uneven egg production characteristics of muscovy ducks, which affects the productivity and economic benefits of enterprises. [0003] Egg-laying traits are low-heritability traits. The breeding method based on trait selection has the characte...

AI Technical Summary

Problems solved by technology

Although muscovy ducks have been bred on a large scale in China, their egg production performance is poor and lack of systematic breeding, resulting in uneven egg production characteristics of muscovy ducks, which affects the productivity and economic benefits of enterprises

[0003] Egg-laying traits are low-heritability traits. Breeding methods based on trait selection have the characteristics of long cycles, slow breeding progress, and difficult to achieve obvious results. As a result, it is very challenging to improve the egg-laying performance of Muscovy ducks.

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