نتایج جستجو برای: induction of genetic diversity

تعداد نتایج: 21232064  

Journal: :iranian journal of biotechnology 2009
seied mehdi miri amir mousavi mohammad reza naghavi mohammad mirzaii ali reza talaei

genetic diversity amongst 21 induced mutant clones tolerant to salinity along with one non-irradiated sensitive clone of banana (musa acuminata cv. dwarf cavendish (aaa)) were studied using morphological and random amplified polymorphic dna (rapd) markers. out of the 30 phenotypic indices screened, 23 were polymorph and two traits, leaf habit and blotches color, were differentiated by non-irrad...

Journal: :iranian journal of biotechnology 2009
somayeh heidary hasan marashi mohammad farsi amin mirshamsi kakhki

seedless barberry (berberis vulgaris l. var. asperma) is one of the few crops that is only cultivated in eastern parts of iran. as a new crop there has not been any study to identify phylogenetic relationships of this plant with other related species existing in iran. in this study, amplification fragment length polymorphism (aflp) markers based on four selected primer combinations (ecori/tru1i...

ژورنال: :مجله گیاهشناسی ایران 2012
سید صدرالدین قائم مقامی سعید افشارزاده غلامرضا بلالی

تمایز گونه­ها در خانواده کاراسه عموما بر پایه صفات ریخت­شناسی است، ولی این صفات تحت تاثیر خصوصیات محیطی قرار می­گیرند. جنس کارا شامل تعداد زیادی گونه می­باشد که تغییر­پذیری مورفولوژیکی زیادی را از خود به نمایش می­گذارند. تکنیک مولکولی رپید برای تعیین تنوع ژنتیکی در سه گونه از جنس کارا در ایران مورد استفاده قرار گرفت. در این مطالعه پنج پرایمر استفاده شدند. لوکوس­های مختلفی برای 17 نمونه از گونه­...

Journal: :journal of crop protection 2015
mehdi mehrabi ebrahim mohammadi goltapeh khalil berdi fotouhifar

genetic diversity relationships of 50 isolates of cytospora schulzeri on apple from different parts of the semirom region were analyzed using 15 polymerase chain reaction (pcr) based markers, 7 random amplified polymorphic dnas (rapds) and 8 microsatellite primed polymerase chain reaction (mp-pcr). using 7 selected rapd primers 113 bands were generated, of which 81 bands were polymorphic (71.7%...

Journal: :iranian journal of microbiology 0
rainak ghaderi razi vaccine and serum research institute, hesarak, karaj, iran. keyvan tadayon razi vaccine and serum research institute, hesarak, karaj, iran. pejvak khaki razi vaccine and serum research institute, hesarak, karaj, iran. nader mosavari razi vaccine and serum research institute, hesarak, karaj, iran.

background and objectives: some 2 million tons of chicken meat is produced by iran per annum, positioning iran among the top producers in the region. this study aimed to evaluate the molecular epidemiology and genetic characteristics of sal- monella enterica enteritidis in iran. materials and methods: a representative selection of isolates (n=76), initially genotyped by a 7-locus mlva typing sy...

Journal: :iranian journal of microbiology 0
ezat asgarani faculty of biological sciences, alzahra university, tehran, iran. tahereh ghashghaei faculty of biological sciences, alzahra university, tehran, iran and national laboratory of industrial microbiology, department of biology, faculty of science, alzahra university, tehran, iran. mohammadreza soudi national laboratory of industrial microbiology, department of biology, faculty of science, alzahra university, tehran, iran. nayyereh alimadadi national laboratory of industrial microbiology, department of biology, faculty of science, alzahra university, tehran, iran.

background and objective : the genus xanthomonas is composed of phytopathogenic bacterial species. in addition to causing crops diseases, most of the xanthomonas species especially xanthomonas campestris produce xanthan gum via an aerobic fermentation process. xanthan gum is, an important exopolysaccharide from xanthomonas campestris, mainly used in the food, petroleum and other industries. the...

Journal: :journal of arthropod-borne diseases 0
hafiz muhammad ashraf department of zoology, government college university faisalabad, pakistan muhammad kashif zahoor department of zoology, government college university faisalabad, pakistan shabab nasir department of zoology, government college university faisalabad, pakistan humara naz majeed department pharmaceutical and biological chemistry, school of pharmacy, university college london, uk sarwat zahoor centre of agricultural biochemistry and biotechnology (cabb), university of agriculture faisalabad, pakistan

background: keeping in view the havoc situation of dengue fever in pakistan, the current study was designed to demon­strate the genetic variations, gene flow and rate of migration from lahore and faisalabad. methods: the larvae were collected from both natural and artificial breeding places from each collection site. the adult mosquitoes were collected by means of sweep net and battery-operated...

Journal: :international journal of horticultural science and technology 0
mohammad hossein azimi assistant professor, national institute of ornamental plants (niop), horticulture sciences research institute, agricultural research, education and extension organization (areeo), mahallat, iran zahra tahernezhad seed and plant certification and registration institute, karaj, iran mohammad javad zamani seed and plant certification and registration institute, karaj, iran.

iris belongs toiridaceae family and it is monocotyledon. iris is one of the important ornamental and medicinal plants. 34 iris genotypes (14 species) collected from different provinces of iran were planted at national institute of ornamental plants (niop) iran. all of the species evaluated for 15 quantitative traits and 30 qualitative traits. results showed that the highest positive correlation...

Journal: :gastroenterology and hepatology from bed to bench 0
ehsan nazemalhosseini mojarad phd student. masoumeh azimirad mansour bayat abdollah hellaly hamid asadzadeh aghdaei hamid mohaghegh shalmani

aim : in this study, genetic polymorphism of two trna-liked short tandem repeat (str)-containing loci, r-r and s-q, was analyzed in order to clarify further the genotypic differences among e. dispar isolates. background : entamoeba dispar is closely related to the human pathogen e. histolytica , the agent of amebic dysentery and amebic liver abscesses. e. dispar is, to some extent, capable of p...

In order to study genetic diversity in rice genotypes In Iran, the variation in 38 rice cultivars were evaluated using 14 SSR markers. The experimental design was a randomized complete block at the research station located in the city in 1392 was Azadshahr. Plant samples at tillering genotypes were collected in the early morning. DNA was extracted from plant samples denaturation was carried out...

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