نتایج جستجو برای: induction of genetic diversity
تعداد نتایج: 21232064 فیلتر نتایج به سال:
the dry bubble disease, caused by lecanicillium fungicola, is an important fungal disease of white button mushroom in iranian mushroom production farms. twenty-three isolates of the pathogen collected in iran and identified as l. fungicola var. fungicola, were compared for genetic polymorphism, diversity in growth rate and virulence. ten universal rice primers (urp) were used to evaluate the ge...
Twenty-two G. glabra populations were used to study the genetic diversity of ISSR molecular markers. 12 primers were used to amplification of genomic DNA fragments of G. glabra populations. High genetic diversity based on ISSR markers was observed among individuals. A total of 130 bands were formed and 105 bands were polymorphic. The mean polymorphism percentage among studied populations was 80...
beet western yellows virus (bwyv), a species of the genus polerovirus in the family luteoviridae, is an agriculturally important virus infecting over 150 plant species in 23 dicotyledonous families worldwide. a survey of bwyv in canola fields in golestan and tehran provinces of iran using indirect triple antibody sandwich enzyme-linked immunosorbent assay (tas-elisa) indicated 8.3 % infection. ...
The great sturgeon, Huso huso, is one of the most important cultured sturgeon species in Iran, which effective management of aquaculture production of this species requires knowledge of broodstock structure, mating patterns, and genetic diversity of broodstock. The aim of the present study was the application of microsatellite DNA analysis for genetic diversity assessment in the first generatio...
Sorghum is the fifth degree of importance in the production of cereal after wheat, rice, maize and barley. Genetic diversity estimation of plant material is primary step for identification, protection and conservation of germplasm and breeding programs designing. In order to study of genetic diversity among 10 genotypes of grain sorghum, 10 microsatellite primers were used according to previous...
genetic diversity of five improved varieties (kaysari, kadi, ranger, mesmir, sea-river) and seven iranian landraces (gharayonje, amozeynadin, rahnani, tazekand, shazand, hamedani, yazdi) of alfalfa were assessed using esterase (est), peroxidase (pox), glutamate oxaloacetate transaminase (got) and malate dehydrogerase (mdh). got and mdh were monomorphic, whereas est and pox showed polymorphic ba...
Community structure has been widely identified as a feature of many real-world networks. It has been shown that the antigenic diversity of a pathogen population can be significantly affected by the contact network of its hosts; however, the effects of community structure have not yet been explored. Here, we examine the congruence between patterns of antigenic diversity in pathogen populations i...
The knowledge of genetic diversity is a must to reduce genetic vulnerability during plant breeding efforts. In the present study 34 pairs microsatellite markers were used for germplasm analysis, estimation of the genetic relationship with the method of Nei and Lee and diversity and studying the capabiltiy of microsatellite marker between 4 resistant and sensitive wheat genotypes. Cluster anal...
in order to induce of genetic variation and selection of genotypes with desirable traits, seeds of three varieties of rapeseed sarigol (pf), rgs003 and zarfam were treated with different doses of gamma ray 500, 700 and 900 gy. to confirm the stability of the induced genetic traits, 66 mutant lines from m4 generation were studied in a randomized complete block design with three replications. twe...
Many researchers consider the use of different probes for hybridization assays as suitable for studying the genetic diversity of nitrogen fixing bacteria. In this study for asessing genetic diversity among Bradyrhizobium japonicum isolates, two different probes (sucA and topA) chosen from the chromosomal genome of Bradyrhizobium strain USDA 110 were designed, evaluated by DNAMAN software and im...
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