the effectiveness of irap, remap, ssr, and issr markers were investigated to assess genetic diversity among and within eight medicago sativa l. populations. a total of 101, 119, 117 loci and 31 alleles were amplified using 10 irap, 14 remap, 16 issr and eight ssr primers, respectively. irap markers generated the maximum proportion of polymorphic loci per primer (pplp) while the maximum value of...

in sturgeon aquaculture, where the main purpose is caviar production, a reliable method is needed to separate fish according to gender. currently, due to the lack of external sexual dimorphism, the fish are sexed by an invasive surgical examination of the gonads. development of a non-invasive procedure for sexing fish based on genetic markers is of special interest. in the present study we empl...

association analysis is a useful method for evaluation of significant association between molecular marker and phenotype of trait. this study was performed to evaluate association between traits related with powdery mildew resistance and molecular markers. this investigation was performed using 77 barley genotypes and aflp markers. in phenotypic evaluation, reaction of seedlings to powdery mild...

effects of induced mutation via gamma irradiated with 250 gy dose (in nuclear agriculture research school- nuclear science and technology research institute) on trichoderma harzianum conidiaon chitinase activity by sts molecular marker have been evaluated in this study. among 20 irradiated mutants which selected via improved antagonistic capability against rhizoctonia solani, pcr amplified chit...

in sturgeon aquaculture, where the main purpose is caviar production, a reliable method is needed to separate fish according to gender. currently, due to the lack of external sexual dimorphism, the fish are sexed by an invasive surgical examination of the gonads. development of a non-invasive procedure for sexing fish based on genetic markers is of special interest. in the present study we empl...

a new system is presented for the generation ofrecombinant bacillus subtilis strains without antibioticmarkers. this system is based on two plasmids constructed in escherichia coli. the first plasmid phm30contains an incomplete hisi gene, the last gene in thehistidine biosynthesis operon of b. subtilis and part ofthe genes yvca and yvcb of unkown function flankinghisi at the 3´-end. the spectin...

fusarium solain is the most important pathogen of huge range of plant hosts, especially potato in the word, which causes tuber rot in storage and root rot of potato plants in fields. fifty four isolates from potato, bean, chickpea and cucurbit (melon, watermelon and cucumber) was subjected in a study through analysis of vegetative compatibility groups (vcgs) and rep-pcr dna fingerprinting. nit ...

myostatin or growth and differentiation factor 8 (gdf8), has been known as the factor causing double muscling phenotypes in which a series of mutations make the myostatin protein inactive, hence disabling it to regulate the deposition of muscle fibre. this phenotype happens with high frequency in a breed of sheep known as the texel. quantitative trait loci (qtl) studies show that a portion of t...

introduction reelin gene (reln) codes a large extracellular matrix glycoprotein with serine protease activity and is implicated in the modulation of neuronal signaling, synaptic transmission and plasticity. the reelin plays a fundamental and pivotal role in the development of laminar structures and may be one of the loci contributing to the positive linkage between chromosome 7q and autistic di...

traumatic central nervous system injuries lead to a severe and permanent neurological deficit. oligodendrocytes (olcs) are vulnerable to damage in a variety of neurologic diseases. although no effective therapeutic option is currently available, recent other studies have shown that cell therapeutic strategies hold promise to enhance functional recovery after injury. the aim of this study is to ...