نتایج جستجو برای: genetic diversity

تعداد نتایج: 761586  

Journal: :journal of agricultural science and technology 2016
j. ashraf w. malik m. iqbal a. khan a. qayyum

robust information of genetic diversity among bt cotton genotypes is still lacking and availability of several marker systems has prompted us to compare their utility for the detection of genetic diversity. here, we report the comparative efficiency of morphological and molecular markers (est-ssrs and issrs) in determining the genetic diversity among 30 pakistani bt cotton genotypes. three diff...

Abstract Yellowfin seabream (Acanthopagrus latus), an important economical species and popular market fish found in the coastal water of Persian Gulf. In this study, eight microsatellite loci were used, population structure and genetic diversity of this species was studied in six fishing area in the Persian Gulf. Alleles observed in different stations were between 7 to 12 with an average of  9...

Journal: :journal of plant molecular breeding 2013
nesa jafari reza behroozi abdolreza bagheri nasrin moshtaghi

expressed sequence tags simple sequence repeats (est-ssrs) are important sources for investigation ofgenetic diversity and molecular marker development. similar to genomic ssrs, the est-ssrs are usefulmarkers for many applications in genetics and plant breeding such as genetic diversity analysis, molecularmapping and cross-transferability across related species and genera. in spite of low polym...

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...

The importance of grain cultivation especially wheat is obvious in terms of providing human and animal food and its impact on the economy of human societies. The reduction of genetic diversity in cultivars prevents increasing yields in line with rising demand and consumption. Therefore, it is necessary to improve the compatibility of them and increase their genetic extent. In the current, the g...

Journal: :international journal of horticultural science and technology 2015
mansoureh danesh mahmoud lotfi shiva azizinia

iran is a part of the secondary centre of origin of melons, and therefore, there is a wealth of genetic variation of these species in this country. the amplified fragment length polymorphism (aflp) marker was applied to investigate the genetic variations among five major iranian melon cultigens (cucumis melo) and ‘ananasi’ as a general well-known cultivar. ten primer pairs were used on 90 indiv...

H.R. Seyedabadi, K. Pahlevan Afshari M. Abdolmaleki

The genetic diversity and phylogenetic structure was analyzed in Marghoz goat population by mitochondrial DNA sequences. Phylogenetic analysis was carried out using hyper variable region 1 (968 bp) obtained form 40 animals. Marghoz goat proved to be extremely diverse (average haplotype diversity of 0.999) and the nucleotide diversity values 0.022. A total of 40 Marghoz goats were grouped into s...

Abbas Mohammadi, Azizollah Alizadeh Javad Mozafari Mansoreh Mirabolfathi Nasrin Noras Mofrad

Objective: The aim of this study was to estimate genetic variability and phonetic relationships of 50 isolates of P. sojae from Iran. Methods: During 2005–2007, 142 isolates of Phytophthora sojae were collected from soil samples and diseased soybean plants from Lorestan, Mazandaran, Golestan and Ardabil provinces. Races of the isolates were determined. DNA of P. sojae...

Journal: :علوم گیاهان زراعی ایران 0
مهسا محمدجانی اسرمی کارشناس ارشد، دانشگاه علوم کشاورزی و منابع طبیعی ساری حمید نجفی زرینی استادیار، دانشگاه علوم کشاورزی و منابع طبیعی ساری سید حمیدرضا هاشمی دانشجوی دکتری پژوهشکدۀ ژنتیک و زیست فناوری کشاورزی طبرستان، دانشگاه علوم کشاورزی و منابع طبیعی

breeding for resistance is one of the main approaches to control diseases. in this approach, there is a necessary for existence a sufficient genetic variability of resistance genes. accordingly, assessing the genetic variability in the available germplasm is needed to manage genetic resources. molecular markers are effective tools to investigate genetic diversity for resistance to pathogens. nb...

Journal: :mycologia iranica 0
s. ebrahimi department of plant protection, faculty of agriculture, university of zabol, zabol, iran s. k. sabbagh department of plant protection and institute of plant biotechnology, university of zabol, zabol, iran m. aminaei research center of agriculture and natural resources of kerman province, kerman, iran f. khosravimoghadam department of plant protection, faculty of agriculture, university of zabol, zabol, iran f. rostami department of plant protection, faculty of agriculture, university of zabol, zabol, iran

die-back disease caused by paecilomyces variotti is one of the most destructive diseases of pistachio in iran. in this study, genetic diversity of paecilomyces variotti isolates was investigated with ssr marker, using six primers pairs. sampling was done from pistachio gardens in different geographical zones of kerman province during summer 2013. various fungal isolates were isolated from infec...

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