background & aim: lamiaceae is one of the most important families of plants with global transmittal. the family is divided to two major groups: lamioideae and nepetoideae. mentha l. genus has high genetic variation because of different ploidy levels and interspecific interspecific hybridization thus that is possible to select genotypes with excelsior traits as essence content. the genus inc...

the genetic polymorphism of some genes related to meat production in three egyptian sheep breeds (barki, rahmani and osseimi) was studied. the candidate genes were: calpastatin, myostatin, diacylglycerol-acyltransferase1, insulin-like growth factor binding protein-3 and booroola fecundity gene. the technique applied was the restriction fragment length polymorphism for the polymerase chain react...

how to cite this article: houshmand m. genetic investigation of lukodystrophy in iran. iran j child neurol.autumn 2014;8;4(suppl.1):11-12.

in this study the data of 2332 lambs from 815 dams and 61 sires, collected during 1993-2004 in kermani sheep breeding station were used to estimate phenotypic, genetic and environmental trends for birth weight (bw), weaning weight (ww), 6 months weight (6mw), 9 months weight (9mw) and yearling weight (yw). heritability estimates were determined for each trait using derivative free reml procedur...

the main aim of this research was to estimate the genetic and phenotypic parameters for productive and reproductive traits of esfahan native chickens. traits included body weights at hatch (bw1), 8 weeks of age (bw8), 12 weeks of age (bw12), and at sexual maturity (wsm)], age at sex maturity (asm), egg number (en), average egg weight (aew) in the first 12 weeks of production, and egg production...

diallel crosses of eight genotypes of safflower were conducted and f1 and f2 generations were evaluated to estimate genetic parameters for seed-quality related traits including protein contents (%), fiber, ash and oil yeild. griffing’s methods 1 and 2 for f1 and f2 generations was used, respectively. sixty four genotypes including 8 parents and 56 f1 progenies, and half diallel crosses of f2 ge...

the objective of this study was to investigate the effect of principal components (pc) of the regression coefficients (co)variance matrix on the lactation curve, and on the formation of selection index to modify the curve, based on these pc’s, and as well to estimate additive genetic and phenotypic variances and heritability of the constructed selection index. lactation period of 301 d (5-305) ...

to clarify the genetic relationships among the lidia breed lineages and two main portuguese lidia bovine populations, casta portuguesa and brava dos açores, 24 autosomal microsatellites were analyzed in 120 samples. brava dos açores showed the highest observed and expected heterozygosity (0.73 and 0.70, respectively) while casta portuguesa showed the lowest observed and expected heterozygosity ...

Objective: Estimation of genetic parameters for Kleiber ratio (KR) and genetic trends for pre-weaning weights of Arabi sheep has not been previously conducted.Methods: Data and pedigree information were collected at the Khuzestan Ramin Agricultural and Natural Resources University, Animal Science Research Station, located in southwest Iran, from 2001 to 2008. (Co)variance components and corresp...

fulani ecotype chickens (fec) and yoruba ecotype chickens (yec) are the two major types of indigenous chickens in nigeria. they subsist under traditional animal husbandry and are thus liable to indiscriminate mating and consequently to loss of genetic diversity. fulani ecotype chickens (fec) and yoruba ecotype chickens (yec) were investigated to determine genetic variation at transferrin locus ...