نتایج جستجو برای: genetic variation

تعداد نتایج: 857908  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده کشاورزی 1391

بررسی تنوع ژنتیکی ژنوتیپ‏های بومی پیاز ایرانی در مقایسه با انواع خارجی چکیده: برنامه های اصلاحی گیاهان بر اساس تنوع و انتخاب صفات برتر کمی و کیفی صورت می گیرد. لذا، ارزیابی تنوع ژنتیکی، اولین مرحله در برنامه های اصلاحی است. در این راستا، استفاده از روش های جدید مطالعه‏ی تنوع ژنتیکی ضروری به نظر می رسد. در این بررسی تعیین تنوع ژنتیکی سیزده ژنوتیپ پیاز ایرانی در مقایسه با دو ژنوتیپ خارجی با است...

Journal: :iranian journal of public health 0
dd farhud m zarif yeganeh

the nutrients are able to interact with molecular mechanisms and modulate the physiological functions in the body. the nutri­tional genomics focuses on the interaction between bioactive food components and the genome, which includes nutrigenet­ics and nutrigenomics. the influence of nutrients on f genes expression is called nutrigenomics, while the heterogene­ous response of gene variants to nu...

Journal: :jundishapur journal of microbiology 0
mansour dabirzadeh department of parasitology and mycology, zabol university of medical sciences, zabol, ir iran; department of parasitology and mycology, zabol university of medical sciences, zabol, ir iran mohammad hashemi department of parasitology and mycology, zabol university of medical sciences, zabol, ir iran yahya maroufi department of parasitology and mycology, zabol university of medical sciences, zabol, ir iran

background zoonotic cutaneous leishmaniasis (zcl) is polymorphic disease that may show various clinical manifestations. objectives this study investigates the determination of genetic variation within the species of leishmania major isolates from new cases in chabahar, a port city in southeast iran (situated at the iran-pakistan border). migration in this region indicates that leishmaniasis is ...

Journal: :journal of agricultural science and technology 2014
z. abbasi a. arzani m. m. majidi

eight pollinators (as pollen parents) and four cms lines (as seed parents) differing in salinity and drought tolerance were evaluated using agro-morphological traits and microsatellite markers. root yield, leaf weight, sugar content, sodium content (na+), potassium content (k+), a-amino nitrogen content, alkalinity coefficient, molasses sugar, white sugar content, extraction coefficient of suga...

Journal: :mycologia iranica 2015
somayeh ebrahimi seyed kazem sabbagh mehdi aminaei fatemeh khosravimoghadam fatemeh rostami

in this study, the genetic diversity among paecilomyces variotti isolaes was investigated. sampling was performed from pistachio garden in seven geographical region of kerman province during 2011-2012. seventy isolates were identified as p. variotii species using morphological criteria. the genetic diversity among 20 selected isolates was assayed by variation at ssr marker bands using 12 pair p...

Journal: :journal of agricultural science and technology 2015
h. maghsoudi kelardashti m. rahimmalek m. talebi

to evaluate the genetic variations in eleven fennel populations in iran, 55 accessions were analyzed by srap markers. twelve primer combinations produced 171 polymorphic bands. the cumulative dendrogram delineated fennel accessions into five major groups in accordance to the geographical regions from which the populations were originated. about 43.57% of total genetic variation was detected amo...

Journal: :iran agricultural research 2011
a.s. moucheshi b. heidari a. dadkhodaie

water deficit is an important factor limiting crop growth all over the world. in order to evaluate genetic variation, heritability and the interrelationship between agronomic traits, twenty chickpea genotypes were cultivated in two separated randomized complete block experiments with three replications under normal irrigated and rainfed conditions. the experiments were carried out at the agricu...

Journal: :iranian journal of applied animal science 2013
p. mishra a.s. ali s.v. kuralkar s.p. dixit r.a.k. aggarwal

berari goats are medium sized animals reared mainly for meat purpose. they are predominantly brown and blackish brown in colour with glossy hair and found in vidarbha region of maharashtra state. berari is not a recognized breed but a well established local population of goat which is yet to be fully explored for its phenotypic and genetic aspects. within population genetic variation was examin...

Journal: :poultry science journal 2013
mamizade n ahani azari m zerehdaran s khan ahmadi ar naghavian s

the japanese and english white quails are widespread strains and belongs to the galliformes order, phasianidae family, coturnix genus  and japonica species. these birds are likely to be well-adapted to the hard conditions and resistance to diseases as it has attained economic importance as an agricultural species. in the current study, the genetic variation of japanese and english white  quail ...

ژورنال: :مجله گیاهشناسی ایران 2013
مریم بهروزیان آذرنوش جعفری محمد فارسی

در این مطالعه تنوع ژنتیکی 69 فرد از نه جمعیت طبیعی متعلق به دو گونه dianthus موجود درشمال شرق ایران با استفاده از داده های pard به منظور دستیابی به اطلاعات مهم ژنتیکی بررسی گردید. 111 باند چندشکلی با کمک 11 آغازگر rapd بدست آمد. درصد باندهای چند شکلی، تنوع ژنتیکی نی و اندیس شانون محاسبه گردید. دندروگرام بر اساس روش upgma جمعیتهای مورد بررسی را به دو گروه اصلی مطابق با دو گونه جدا نمود و نزدیکی ...

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