In order to assess the evolutionary significance of molecular variation in natural populations of Drosophila melanogaster, we have started a comprehensive genetic variation study program employing a relatively large number of gene-protein loci and an array of populations obtained from various geographic locations throughout the world. In this first report we provide estimates of gene flow based...

the holstein bulls (n=50) were genotyped for bovine lymphocyte antigen (bola-drb3.2) alleles by polymerase chain reaction and restriction fragment length polymorphism (pcr-rflp). genomic dna was extracted from bull semen using phenol-chloroform method. a two-step pcr was conducted in order to amplify a 284 base-pair fragment of the target gene. amplicons were digested by rsai, haeiii and bstyi ...

Introduction: The natural ecosystems of northern Mato Grosso, Brazil, are in process fragmentation, mainly due to population growth and the expansion agriculture. This endangers palm Euterpe precatoria (locally known as açaí), used for construction, hearts, juices ice cream. Objective: To evaluate local diversity genetic structure native populations E. precatoria. Methods: We collected leaves f...

conclusions in conclusion, the ace and pparg genes do not have a key role in conferring risk for diabetic nephropathy. results ace id genotypes followed hardy-weinberg equilibrium in both cases and controls. but p12a genotypes deviated from hardy-weinberg equilibrium in diabetic controls. chi2 test was applied for the analysis of genotypic distributions in genotypic and dominant models. odds ra...