نتایج جستجو برای: induction of genetic diversity

تعداد نتایج: 21232064  

Rice (Oryza sativa L.) is one of the most significant cereal crops, about 3 billion people, nearly half the world's population; depend on rice for survival and it offers up to 80% of daily energy intake in most of the Asian countries. Knowledge of the distribution, extent and pattern of genetic variation is useful for estimation of any possible loss of genetic diversity and its role in breeding...

This study was conducted to assess the efficacy of SCoT and DAMD molecular markers in genetic diversity  of three moss species and compare them with ISSR marker. Another objective was to evaluate the suitability of these DNA markers in species identification (delimitation) in three moss species, including Neckera complanata, Homalothecium sericeum and Neckera cris...

Ahmad Faqih Ahmadani, Seyed Javad Hosseini, SeyedAhmad Qasemi,

The main purpose of this study was to investigate the genetic diversity and population structure of Liza klunzingeri in two regions of the Persian Gulf. In this study, the amplified fragment length polymorphism (AFLP) was employed to analyze population genetic diversity between two populations (Ziyarat & Hendijan). Seven primer combinations (E-AAG/M-CTA, E-ACT/ M-CAA, E-ACT/ M-CTA, E-AAG/M-CTG,...

خوشخوی, مرتضی , سیدطباطبایی, بدرالدین ابراهیم , قبادی, سیروس ,

Grapevine (Vitis vinifera L.) is a clonally propagated major fruit crop. In grapevine, identification of genotypes with amplographical features is often based on mature plant characteristics that may be affected by environmental conditions. This approach lacks objectivity and reliability. Recently, molecular markers have proved to be supplementary techniques to analyze genetic diversity and exa...

Journal: Mycologia Iranica 2017

Chickpea (Cicer arietinum L.) is one of the most important legume crops in Iran. Wilt disease caused by Fusarium oxysporum f. sp. ciceri, is the most important soil-borne disease of chickpea in the world. This disease caused high losses in different regions during recent years. Simple sequence repeat (SSR) were used to estimate genetic diversity in 114 of F. oxysporum isolates from six counties...

Journal: :علوم باغبانی 0
حیدری حیدری مرعشی مرعشی فارسی فارسی میرشمسی کاخکی میرشمسی کاخکی

abstract seedless barberry (berberis vulgaris l. var. asperma) is one of the few crops that is cultured only in iran and southern parts of khorasan provinces. the origin of this variety is unknown and there has not been any study aiming to identify phylogenic relationships of this plant with other species existing in iran. in this study, aflp markers based on four primer combinations (ecori/tru...

Journal: :iranian journal of ichthyology 0
hamed kolangi miandare department of fisheries, faculty of fisheries and environment, gorgan university of agricultural sciences and natural resources, gorgan, golestan, iran. omid jafari department of fisheries, faculty of fisheries and environment, gorgan university of agricultural sciences and natural resources, gorgan, golestan, iran. hajer ben alaya laboratory of marine biology, university of sciences of tunis, tunisia.

the aim of this study was to access the genetic differentiation of paraschistura sp. in kheirabad and brim rivers (zohreh river system, persian gulf basin), iran. for this purpose, 60 samples including 30 male and 30 female samples from each river were collected. a total of six microsatellite loci (bbar4, bbar7, ic228, ic230, ic434 and ic720) were used and all of them showed high polymorphism (...

ژورنال: علوم آب و خاک 2008
خوشخوی, مرتضی , سیدطباطبایی, بدرالدین ابراهیم , قبادی, سیروس ,

Grapevine (Vitis vinifera L.) is a clonally propagated major fruit crop. In grapevine, identification of genotypes with amplographical features is often based on mature plant characteristics that may be affected by environmental conditions. This approach lacks objectivity and reliability. Recently, molecular markers have proved to be supplementary techniques to analyze genetic diversity and exa...

Journal: :دانش علف های هرز ایران 0
مرجان دیانت دانشجوی دکتری دانشگاه تهران علی اکبر شاه نجات بوشهری استاد دانشگاه تهران حسن علیزاده استاد دانشگاه تهران محمد رضا نقوی استاد دانشگاه تهران حمید رحیمیان مشهدی استاد دانشگاه تهران

the common reed (phragmites australis) is a perennial weed with the largest geographical distribution of any flowering plant in the world. in this study, 39 populations of common reed were collected and random amplified polymorphic dna (rapd) markers were used to characterize the genetic diversity among these populations. the 16 primers used in this study, amplified 149 scorable rapd bands amon...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - پژوهشکده علوم انسانی و اجتماعی 1390

this study attempts to investigate the effect of peers’ revision in comparison to that of the teacher, and whether peers’ comments and teachers’ comments facilitate students’ revision? if yes, which one is more effective? also attempts have been made to see which aspects of language are more highlighted by peers versus teachers when commenting. besides, it is investigating the student’s attitud...

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