A novel SNP (c.258+43C GT T) in LPL gene and association with milk production in buffaloes
2019
Akhtar Ali(Virtual University of Lahore (Pakistan). Faculty of Science and Technology) E-mail:drakhtar.ali@hotmail.com | Zukhruf Baig(University of Veterinary and Animal Sciences, Lahore (Pakistan). Institute of Biochemistry and Biotechnology) | Masroor Ellahi Babar(Virtual University of Pakistan, Lahore (Pakistan). Faculty of Science and Technology) | Asif Nadeem(University of Veterinary and Animal Sciences, Lahore (Pakistan). Institute of Biochemistry and Biotechnology) | Tanveer Hussain(Virtual University of Pakistan, Lahore (Pakistan). Faculty of Science and Technology) | Rashid Saif(Virtual University of Pakistan, Lahore (Pakistan). Faculty of Science and Technology) | Maryam Javed(University of Veterinary and Animal Sciences, Lahore (Pakistan). Institute of Biochemistry and Biotechnology)
Buffalo milk is the most preferred commodity in Pakistan due to high fat contents. Hydrolysis of circulating triglycerides and uptake of fatty acids in the mammary gland is regulated by lipoprotein lipase (LPL). This study is designed to identify single nucleotide polymorphisms (SNPs) in LPL gene among high and low milk producing buffalo breeds of Pakistan. We selected samples (n=50) of each Nili-Ravi a high milk producing and Azakheli a low milk producing buffalo breeds. Blood samples were collected for DNA extraction. LPL region of exon 2 region along with exon/intron boundaries were sequenced and data was analyzed for variation detection. Allele frequency was calculated using Hardy-Weinberg equation and in-silico analysis was performed for functional prediction and genetic diversity assessment. We found one single nucleotide polymorphism c.258+43C GT T in the intronic region of LPL gene. This polymorphism followed the Hardy-Weinberg equilibrium in both Nili-Ravi (P-value = 0.538) and Azakheli (P-value = 0.077). Association of T-allele analysis predicted it significantly higher (P-value = 0.009) in Nili-Ravi. We found one novel SNP (c.258+43C GT T) in the LPL gene in both high and low milk producing buffalo breeds of Pakistan but high in Nili-Ravi. Lower splice site effect suggests its less strength of association with milk producing trait.
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