نتایج جستجو برای: induction of genetic diversity
تعداد نتایج: 21232064 فیلتر نتایج به سال:
Evaluation of genetic diversity is the key principal for plant breeding, providing an opportunity to discover novel characters and alleles for breeders. In the present study, 69 durum wheat genotypes were investigated for genetic diversity using several inter-simple sequence repeat (ISSR) markers. Sixteen ISSR primers amplified a total of 163 fragments, which out 160 fragments were polymorphic....
Acipenser stellatus (stellate sturgeon) that has been intensively captured for decades represents a sturgeon species of great importance for the scientific community and fishermen. Besides overfishing and poaching, their reproduction sites have been destroyed and their natural habitats were affected by pollution. In consequence, wild populations of stellate sturgeon have decreased dramatically ...
enzyme electrophoresis was used to measure genetic variation within, and divergence among, three generations of recently bred synthetic alfalfa generations (syn1, syn2, and syn3) originating from a polycross of 12 selected parents and several cultivars. three isozyme loci, exhibiting tetrasomic inheritance in 10-day seedlings, were detected from five enzymatic systems analyzed by polyacryla...
the applicability of rapds, aflps, and ssrs to examine genetic relationships in 36 populations of triticum boeoticum from west of iran was investigated. a total of 224 (135 polymorphic), 979 (429 polymorphic) and 246 (145 polymorphic) bands/alleles were detected using 14 rapd primers, 17 aflp primer combinations and 17 well distributed, mapped ssr markers, respectively. the polymorphic informat...
genetic diversity among plants sprouted from seven year old clones of mulberry (morus indica var. s36) was studied using molecular markers such as issr and rapd. the clones showed significant variability in sex expression and the sprouting behavior. these changes were appeared after seven years of rigorous pruning and training (pruned once in every 3-4months). genetic diversity analysis reveale...
six highly variable microsatellite loci were used to investigate the genetic diversity and population structure of the garra rufa in kermanshah and bushehr provinces, iran. all of the 6 microsatellite loci screened in this study showed polymorphism. a total of 90 individual fish from 3 populations were genotyped and 60 alleles were observed in all loci. the number of alleles per locus ranged fr...
castor (ricinus communis l.) is one of the most ancient medicinal oil crops in the world. it has been vastly distributed in different parts of iran. in the present study, the inter simple sequence repeat (issr) markers were used to evaluate the molecular genetic diversity among and within 12 castor accessions collected from 7 regions of iran. totally, 16 issr primers amplified 166 loci, of whic...
background and objectives: the escherichia coli strains are greatly important in nosocomial and community acquired infections. the aim of this study was to determine the transmission of bacterial infections using genetic analysis. materials and methods: two hundred and thirty escherichia coli strains, isolated from different clinical samples, were characterized by enterobacterial repetitive int...
Background and objectives: The genus Ephedra (Ephedraceae) consists of about 40 species of mostly shrubs and rarely small trees around the world. In the present study, the essential oil (EO) diversity and genetic relationships were investigated in six Ephedra species from Iran using Random Amplified Polymorphic DNA (RAPD) markers. Methods: The...
Background: Iranin poppy (Papaver bracteatum Lindl.) belongs to Papaveraceae family which has important alkaloids such as thebain. Objective: Investigation of genetic diversity and population structure of Iranian poppy populations from Alborz Mountains. Methods: Total DNA from 36 genotypes (12 individuals from each population) were extracted by doyle method. Thebaine of capsules were assayed...
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