We have isolated a dominant behavioral mutation, Photophobe (Ppb), on the second chromosome of Drosophila melanogaster. Although wild-type flies are attracted towards green light, flies homozygous for the Ppb mutation avoid it over an intensity range of six logarithms. Ppb interacts in a dominant way with mutations in the sevenless (sev) gene, an X-chromosomal gene necessary for photoreceptor c...

previous studies have demonstrated some significant differences in hla allele frequencies in leukemic patients and normal subjects. we have analyzed hla class ii alleles and haplotypes in 60 iranian patients with acute myelogenous leukemia (aml) and 180 unrelated normal subjects. blood samples were collected after obtaining informed consents. from the patients and control dna extraction and hla...

iPBS retrotransposon markers, in other words, inter-primer binding site markers based on retrotransposon, have been helpful for the determination of genetic diversity several plants. The study was evaluated using 10 molecular level and structure alfalfa genotypes. A total 280 alleles 50 genotypes (48 local 2 commercial varieties) were obtained by 267 polymorphic with an average 28 per locus, ra...

Background: A common Human Leukocyte Antigen (HLA) class II allele, DQβ1*03:01, seems to be associated with Bullous pemphigoid (BP) in Caucasians whereas previous studies in other ethnic groups showed other HLA class II alleles as genetic predisposing factors for BP. Objective: To investigate the association of HLA class II alleles and haplotypes with BP in Iranian population. Methods: Fifty pa...

Statistical methodology for testing the Hardy–Weinberg equilibrium at X chromosomal variants has recently experienced considerable development. Up to a few years ago, was basically done by applying autosomal test procedures females only. At present, male alleles can be taken into account in asymptotic and exact both bi- multiallelic case. However, current multiple rely on classical full enumera...

world apricot (prunus armeniaca l.)  production is increasing steadily due to breeding of new high yielding cultivars in different countries. more recently, breeding programs have been modified according to consumers’ demands and also improvement in resistance to diseases (sharka, monilinia etc.), frost damages, and determination of self-(in) compatibility. in this study, fourteen apricot breed...

References: Altschul, S.F., T.L. Madden, A.A. Schaffer, et al. 1997, Nucl. Acid Res. 25: 3389-3402; Bock, I.R., and M.R. Wheeler 1972, In: The Drosophila melanogaster species group. Texas Univ. Publ. 7213: 1-102; Iriarte, P.J.F., C. Rodriguez, and E. Hasson 2002, J. Evol. Biol. 15: 226-234; Kamping, A., and W. Van Delden 1999, J. Evol. Biol. 12: 809-821; Kumar, S., and A.K. Singh 2012, Dros. In...

Allelic variation in the DR subregion of the human major histocompatibility complex has been analyzed by nucleic acid sequencing of cDNA clones obtained from cell lines homozygous by consanguinity for all the common serological types DR1-9. Two expressed loci were identified in the haplotypes DR2, -3, -4, -7, and -9; one locus being present at a much lower frequency (4-7%) than the other. The l...

Abstract Determination of genetic diversity level is important in clarifying genetic relationships, characterizing germplasm and the registration of new cultivars. In this study, genetic variation among 56 accessions (G1~G56) of Citrus including several undefined local or native genotypes and some known varieties in Jiroft, Kerman province, Iran was investigated using SSR markers. In total, 12 ...