نتایج جستجو برای: genetic diversity
تعداد نتایج: 761586 فیلتر نتایج به سال:
The aim of the present work was to study genetic diversity within and among of five native populations of Juniperus spp. in three provenances of Golestan, Mazandran and Gilan. Four out of 15 ISSR primers have yielded 285 scorable, polymorphic fragments in 32 accessions, which were utilized to estimate genetic diversity. Analysis of molecular variance with GenALEx software revealed a 48% genetic...
Plant breeding researches is based on genetic diversity and evaluation of genetic diversity is also one of the most important steps in introduction of new cultivars. In this study, genetic diversity of 25 grass pea genotypes was studied based on randomized complete block design with three replicates in Khorramabad (Iran). Analysis of variance showed significant differences among genotypes for m...
The aim of this study was identifying different populations and determining the genetic characteristics of three different sub-adult stocks of Litopenaeus vannamei in hatchery of Iran Shrimp Research Center by microsatellites DNA markers in Bushehr province during from October to November 2019. Up to 50 individuals were sampled per stock, with equal contribution by sex. The tissue preserved in ...
bambara groundnut [vigna subterranea (l.) verdc.] is an indigenous legume crop in africa. it has comparable value to other legumes for food and nutritional security in the continent. however, small-scale farmers continue cultivating unimproved landrace varieties over the production areas in sub-saharan africa. bambara groundnut landraces exist as heterogeneous mixtures of seeds, which typically...
in this study, srap molecular maker approach was performed to investigate genetic diversity in the salvia genus. a total of 205 dna bands were produced from pcr amplification of 11 salvia species and populations using 25 selective primer combinations, of which 204 polymorphic genetic loci accounted. the total number of amplified fragments ranged from 3 to 15. the genetic similarities of 11 coll...
objective: wheat is the most important crop in iran. self sufficiency in wheat production is one of the economic and food safety policies in the country. in spite of the efforts which have been made in this area, the mean of wheat yield in iran is less than its world average. methods: in order to identifying of the high yielding wheat lines with optimal characteristics and to determine the trai...
الگوی تنوع ژنتیکی 54 جمعیت و 40 فرد جو خودرو از رویشگاههای طبیعی مختلف ایران با استفاده از 26 جفت نشانگر ریزماهواره مورد آنالیز قرار گرفت. در سطح جمعیتی، مقادیر بالایی از تنوع (0.71) با متوسط تعداد آلل 6.92 آلل در هر لوکوس (تا 17 آلل در هر لوکوس) ومیزان بالایی از پلیمورفیسم به میزان متوسط 0.67 مشاهده گردید. تعداد متوسط آلل در هر جمعیت 38.37 (از 36.33 آلل در شمالشرق تا 38.94 آلل در غرب کشور) و...
the isolation-by-distance theory states that the genetic differentiation between individuals raised by increasing geographic distance. therefore, this study tested this hypothesis for garra rufa , a freshwater fish species of iranian inland waters, from six rivers located at the different distances in tirgis basin. for this purpose, eight variable microsatellite loci were applied to identify ge...
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