نتایج جستجو برای: induction of genetic diversity
تعداد نتایج: 21232064 فیلتر نتایج به سال:
Mitochondrial DNA (mtDNA) has been used extensively to study population genetics because it has the unique features of maternal inheritance, a relatively fast rate of evolution and lack of recombination. A total of 82 unrelated sheep from 10 Iranian indigenous sheep breeds were investigated to determinate the maternal genetic diversity using a sequence of a 685 bp segment of the displacement lo...
background: garlic is a valuable medicinal plant with variability in desirable morphological and physiological characteristics. the analysis of genetic diversity plays an important role in breeding programs. the rapd technique could be very effective in detecting genetic variation in garlic. objective: the objective of the present work was to detect molecular polymorphism among iranian garlic ...
German chamomile (Matricaria chamomilla L.) is an s an annual plant of the composite family Asteraceae. This plant is native to the Mediterranean region, and some researchers have reported its origins in Asia. The aim of this study was to investigate the genetic diversity of nine chamomile populations using the SCoT marker. Ten SCoT primers were used. A total of 141 bands were produced, of whic...
study of genetic relationships is a prerequisite for plant breeding activities as well as for conservation of genetic resources. in the present study, genetic diversity among and within 15 iranian native ajowan(carum copticum l.) populations were determined using inter simple sequence repeat (issr) markers. twelve selected primers produced 153 discernible bands, with 93 (60.78%) being polymorph...
fusarium wilt caused by fusarium oxysporum schltdl. f.sp. phaseoli (fop), is one of the important diseases of the common bean in iran and many of the bean growing countries. incidence of the disease has been reported in tropical and semi-tropical regions of the world. this study was carried out to characterize genetic diversity of f. oxysporum isolates from the common bean by vegetative compati...
In the present study, the effect of temperature pretreatment (T1=4 and T2= 8 °C) for 10 days on anthers of six different genetic compositions of Ghaem with other high-yielding lines of rice have been studied. For callus induction, three modified culture media of N6 (N1, N2 and N3) and MS culture medium was used for regeneration. results of statistical analysis showed that there was significant ...
inter simple sequence repeat (issr) analysis was performed to evaluate genetic diversity and genetic structure of six capoeta trutta populations from two main watersheds in the kurdistan province. fish samples were caught from the choman, shooei, garmab rivers in the choman watershed and from the gheshlagh, gavarood, sirvan rivers in the sirvan watershed. from six used dinucleotide primers, thr...
This study was carried out to investigate the genetic diversity and population structure of 90 specimens of Oxynoemacheilus argyrogramma collected from Sepidbarg, Gamasiab and Ghaleji rivers, in the west of Iran. Analyses using three microsatellite loci indicated that the average number of alleles in the population was 12, which was well above the reported values for freshwater fishes. The expe...
To evaluate the genetic diversity in quinoa genotypes for future studies, 60 imported quinoa genotypes were studied using microsatellite markers (SSR) at the faculty of agricultural sciences, University of Guilan, Rasht, Iran, in 2022. The results of the phenotypic evaluation of the quinoa genotypes showed that there was a relatively high diversity among them. Among the studied traits, seed yie...
Knowledge of genetic diversity and relationships between genotypes is mainly important for selection of parental genotypes. Moreover, assessing diversity across and within crop varieties is important to improve the description of collections in gene banks and in on-farm conservation practices. In order to evaluation and study of genetic diversity in the bean in normal condition, forty-five bean...
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