A determination of growth hormone receptor gene polymorphisms in East Anatolian Red cattle, South Anatolian Red cattle, and Turkish Grey cattle

The objective of this study was to determinate the genotype and allele distributions of growth hormone receptor gene polymorphisms in East Anatolian Red cattle (EAR), South Anatolian Red cattle (SAR), and Turkish Grey (TG) cattle. To this end, 50 EAR, 50 SAR, and 50 TG cattle were used in the study. DNA samples were isolated by using the standard ammonium acetate salt-out method. Target regions were amplified and digested by AluI, AccI, StuI, NsiI, and Fnu4HI restriction enzymes. The + allele frequency of growth hormone receptor (GHR)/AluI polymorphism related with milk traits in TG cattle and the allele frequencies of GHR/AluI polymorphism related with meat traits in EAR and SAR cattle were found to be low. The + allele frequency of GHR/StuI polymorphism affecting milk traits was found to be low in the EAR breed. The -/- genotype of GHR/NsiI polymorphism was also low in all 3 of the breeds. The + allele frequency of GHR/Fnu4HI polymorphism related with meat traits turned out to be low in the SAR and EAR breeds. In conclusion, it can be said that some of the alleles of GHR polymorphisms that are favorable for trait qualities occur less frequently in SA R, EAR, and TG cattle breeds than they do in high-trait European breeds

Indel mutation of the ADD1/SREBP-1c gene in the South Anatolian Red and East Anatolian Red cattle breeds

The present study was designed to determine genotypes of adipocyte determination and differentiation-dependent factor 1 (ADD1)/sterol regulatory element-binding protein-1c (SREBP1c) in South Anatolian Red (SAR) and East Anatolian Red (EAR) cattle. Fifty cattle from the SAR breed and 43 cattle from the EAR breed were used. Intron 7 of the ADD1/SREBP1c gene containing an 84 bp indel mutation was amplified by polymerase chain reaction (PCR). The number of SS genotyped individuals with the 84 bp deletion associated with fatty acid composition and growth traits were very low in both breeds. The frequency of the LL genotype with the 84 bp insertion was significantly higher. The 2 cattle populations were in Hardy-Weinberg equilibrium. The SS genotype was observed in the SAR and EAR breeds. As a result, we can conclude that determination of ADD1/SREBP1c genotype distribution in a great number of cattle breeds of Bos taurus and Bos indicus would allow us to observe more SS genotypes

Analysis of Expressed Genes in Normal and Tumoral Mammary Gland Tissue of the Terrier Dog

WOS: 000429197900005Mammary gland tumor is the most common type of tumor in female dogs. Data on genes that are involved in tumorigenesis and mechanism of tumor development are insufficient. Comparative studies have been conducted in order to see if tumorigenesis studies in the dog could be a model for human mammary gland tumors. In this study, we constructed two different cDNA libraries from mammary tissue, which were collected from a normal mammary tissue of a healthy Terrier dog and a tumoral mammary tissue of a sick dog. A total 2304 colonies which are randomly picked out from the two libraries were sequenced for developing a dog mammary gland ESTs collection. Raw EST data were analyzed with Phred/Phrap programs and readable EST sequences were assembled with the CAP3 program. All of EST sequences were grouped into 45 contig and 2203 singletons. Putative functions of all unique sequences were designated by NCBI BLAST based on gene homology and annotated by BLAST2GO. The results of this study are a very valuable resource for functional genome studies of the dogs