ABSTRACT
Adiponectin (ADIPOQ) gene regulates the glucose metabolism, insulin sensitivity, fatty acid oxidation, immunity and reproduction. In the present investigation, PCR-RFLP method was conducted to identify the genetic polymorphism in intron 2 region of adiponectin (ADIPOQ) gene in Indian Sahiwal cattle. PCR of intron 2 of ADIPOQ gene fragment produced amplicon of 961 bp which was subsequently digested with RsaI restriction enzyme. The RsaI/PCR-RFLP assay revealed monomorphic pattern only, TT genotype (wild type homozygote) in Sahiwal cattle population which was confirmed by sequencing. The obtained sequences of ADIPOQ after aligning revealed absence of RsaI recognition site GTAC and consequently, the association study with economic traits could not be performed
ABSTRACT
Secreted phosphoprotein 1 (SPP1) is popularly known as osteopontin (OPN), which plays an important role in initiation and maintenance of pregnancy, as well as in the development of the fetus and milk production. In the present study, investigation of G>T polymorphism in exon 7 region of SPP1 gene was undertaken in 147 Sahiwal and Hariana cattle maintained at Livestock Farm Complex (LFC), DUVASU, Mathura using HpyCH4IV/PCR-RFLP assay. Amplification of SPP1 exon 7 region revealed 204 bp product and HpyCH4IV restriction digestion screening showed monomorphic pattern. Only one type of genotype, namely, TT (204 bp) was observed in population. The frequency of TT genotypes was 100% in all screened samples with T allele (1.0). The results revealed that SPP1 T allele seems to be fixed in screened cattle population. Consequently, we could not perform the association study of this substitution with milk production traits