Polymorphisms of the prolactin gene and their association with egg production traits in two Chinese domestic ducks
| Autor: | Ang Li, Ding-Ping Bai, Z.-B. Huang, Yu-Qiong Hu, Y.-B. Li |
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| Rok vydání: | 2019 |
| Předmět: |
endocrine system
endocrine system diseases Genotype 040301 veterinary sciences Peptide hormone Polymorphism Single Nucleotide DNA sequencing 0403 veterinary science Avian Proteins Pcr sscp Animals Gene Polymerase Ovum Genetics biology Base Sequence 0402 animal and dairy science 04 agricultural and veterinary sciences General Medicine 040201 dairy & animal science Prolactin Prolactin Gene Ducks biology.protein Animal Science and Zoology Female hormones hormone substitutes and hormone antagonists Food Science |
| Zdroj: | British poultry science. 60(2) |
| ISSN: | 1466-1799 |
| Popis: | 1. Prolactin (PRL) as a polypeptide hormone which plays a crucial role in egg production traits. 2. Polymorphisms of the PRL gene were analysed with DNA sequencing and polymerase chain reaction-single-strand conformation polymorphism methods in two Chinese domestic laying duck breeds (Jinding, n = 400, Youxian, n = 400, respectively). 3. The results showed that one polymorphism was detected (A-412G) in intron 1 of the PRL gene, with three genotypes: AA, AG and GG. Association analysis showed that the ducks with the GG genotype had significantly greater egg production and egg weight than those with AG and AA genotype (p 0.05). Hence, the 412A G polymorphism of the PRL gene in intron 1 is a potentially valuable genetic marker for laying duck breeding programmes. |
| Databáze: | OpenAIRE |
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