Allele mining in prolactin receptor gene and its association with some economic traits in Egyptian goat breeds

The objectives of the current study were to identify polymorphism in the prolactin receptor (PRLR) gene among three Egyptian goat breeds (Zaraibi, Damascus, and Barki) and to investigate the association between PRLR genotype, parity, season of kidding, and litter size factors with milk yield and rep...

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Bibliographic Details
Published in:Animal biotechnology 2023-12, Vol.34 (9), p.5028-5036
Main Authors: Nowier, Amira M., Darwish, Hassan R., Ramadan, Sherif I., Othman, Othman E.
Format: Article
Language:English
Subjects:
Age
Alleles
Deoxyribonucleic acid
DNA
Gene polymorphism
Genotypes
Gestation
Goat
Goat's milk
Goats
Heterozygosity
kidding season
Lactation
Litter size
Milk
milk yield
Parity
Polymorphism
Prolactin
prolactin receptor gene
Receptors
Restriction fragment length polymorphism
Seasons
Single-nucleotide polymorphism
Suckling behavior
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Summary:The objectives of the current study were to identify polymorphism in the prolactin receptor (PRLR) gene among three Egyptian goat breeds (Zaraibi, Damascus, and Barki) and to investigate the association between PRLR genotype, parity, season of kidding, and litter size factors with milk yield and reproductive traits of Zaraibi goats. One hundred and ninety blood samples were collected for DNA extraction, with 110 from Zaraibi, 40 from Barki, and 40 from Damascus breeds. Three genotypes, CC, CT and TT, for the prolactin receptor gene were identified in the 190 DNA samples using restriction fragment length polymorphism and were confirmed by direct sequencing technique. Milk yield during suckling and lactation periods in addition to age at first conception, gestation length, and litter size were determined in 110 Zaraibi goats. The Zaraibi goats recorded the highest heterozygosity (0.495) and the effective number of alleles (1.972). The g.62130C > T SNP showed a significant association (p 
ISSN:1049-5398
1532-2378
DOI:10.1080/10495398.2023.2223237