Association of polymorphisms of FASN gene with productive and reproductive traits in Iranian Holstein cows of Kerman province

Document Type : Research Paper

Authors

1 MS.c of Animal Breeding, Department of Animal Science, University of Zabol

2 Assistant Professor of University of Zabol

3 Assistant Professor, Animal Breeding and Genetics, University of Zabol

Abstract

Fatty acid synthase (FASN), a multifunctional protein that carries out the synthesis of fatty acids, is coded by FASN gene which is known as major candied gene and plays a central role in de novo lipogenesis in mammals. This study was conducted to detect single nucleotide polymorphisms (SNPs) of the FASN gene and explore their relationships with three economically important traits including milk production (M), calving interval (CI) and conception rate (CR) in Holstein cows of Kerman province. The whole blood samples corresponding to the 38 Holstein cows with high and low estimate breeding values were collected. Genomic DNA was extracted from blood samples of the cows using a genomic DNA kit according to the manufacturer’s instructions. The genetic material was used for polymerase chain reaction amplification of selected gene fragments (750bp length from exon 37 to 39). All of PCR products were subsequently used directly for sequencing. Analysis of the target sequence followed by multiple regression of average allele substitution effects on M, CI, and CR traits revealed 58 SNP markers, among which 8 SNPs were totally associated with productive and reproductive traits. (M), (CI) and (CR) were affected by three (g.16593A>G, g.16670C>A and g.16776C>T), three (g.16524G,C,T>A, g.16830G,C,T>A, g.16833A,T>G) and two (g.16594A,C>G and g.16811A,T>G) SNPs respectively (P<0.05). Association between polymorphism in FASN gene and traits could be used as molecular markers for determination of animal's genetic potential as well as breeding strategies in Holstein population.

Keywords

References

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Animal Sciences Journal
Volume 31, Issue 121
March 2019
Pages 253-262

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