نتایج جستجو برای: genetic analysis

تعداد نتایج: 3278842  

Journal: :applied biotechnology reports 0
alireza zebarjadi agronomy and plant breeding department, faculty of agriculture, razi university. biotechnology for drought tolerance research department, razi university. hossein rostami ahmadvandi agronomy and plant breeding department, faculty of agriculture, razi university, kermanshah, iran. danial kahrizi agronomy and plant breeding department, faculty of agriculture, razi university, kermanshah, iran. biotechnology for drought tolerance research department, razi university, kermanshah, iran kianoosh cheghamirza agronomy and plant breeding department, faculty of agriculture, razi university, kermanshah, iran. biotechnology for drought tolerance research department, razi university, kermanshah, ira

syrian rue or harmal ( peganum harmala l.), belonged to the family of peganaceae, grows in semi-arid climates such as the middle east and north africa. traditionally, this plant, especially the seeds, has been recognized for its several medicinal uses. in this stydy, genetic diversity between 21 harmal accessions, collected from different regions of iran were evaluated by inter simple sequence ...

Journal: :caspian journal of environmental sciences 2007
p. kumaresan r.k. sinha

the genetic variation and diversity among fifty-eight polyvoltine silkworm genotypes was estimated by using ten economic traits. the results revealed that the single shell weight showed higher genetic variation such as pcv% (17.20%), gcv% (12.93%), and heritability (56.5%) followed by single cocoon weight, shell ratio and matured larval weight. the d2 (mahalonobis? distance) statistics revealed...

Journal: :journal of plant molecular breeding 2015
hajar abedinpour nad ali babaeian jelodar gholam ali ranjbar behrouz golein

having knowledge about genetic relationships among accessions is necessary for developing breeding strategies to produce improved cultivars. in present study, genetic diversity and inter-relationship among 29 genotypes of citrus were comparatively analyzed using morphological and rapd markers. significant variability was observed among citrus genotypes for 61 quantitative and qualitative morpho...

ژورنال: :مجله گیاهشناسی ایران 2006
سید رضا طبائی عقدائی حسین حسینی منفرد حمید فهیمی حسن ابراهیم زاده مریم جبلی

در این پژوهش نشانگر مولکولیrapd برای تعیین تنوع ژنتیکی 12 جمعیت گل محمدی شمال غرب ایران مورد استفاده قرار گرفت. با استفاده از 22 آغازگر، تعداد 262 باند قابل تشخیص ایجاد شد که 67% آنها ( 180 باند) در بین جمعیتهای مختلف چند شکلی نشان دادند. تعداد متوسط باندها به ازای هر آغازگر 9/11 بود. شاخص تشابه dice برای تعیین همسانیهای ژنتیکی بین جمعیتها مورد استفاده قرار گرفته و با استفاده از الگوریتم upgma ...

Journal: :international journal of advanced biological and biomedical research 2015
zeinab rostami arash fazeli mehrshad barary

objective: flowering time (ft) in cereals controlled by genes that had a main factor on plant development. methods: genetic and phenotypic diversity of four flowering time genes (ft2, ft3, ft4, ppd-h1) in 19 genotypes of cultivated and wild barley was evaluated and a total of 107 alleles were amplified. genotypes based on days to flowering time and molecular data were grouped into early, middle...

Journal: :energy equipment and systems 0
seyyed morteza mousavi school of mechanical engineering, college of engineering, university of tehran, tehran, iran amir nejat school of mechanical engineering, college of engineering, university of tehran, tehran, iran farshad kowsary school of mechanical engineering, college of engineering, university of tehran, tehran, iran

in the current work, different methods for optimization of turbine blade internal cooling are investigated, to achieve higher cyclic efficiency and output power for a typical gas turbine. a simple two-dimensional model of c3x blade is simulated and validated with available experimental data. the optimization process is performed on this model with two different methods. the first method is a po...

Journal: :genetics in the 3rd millennium 0
parisa naseri soheila khodakarim mohammad rafeie maryam sadat daneshpour

one of the most important goals for researchers in the clinic is to try to find newer and more effective ways to diagnose and cure the diseases. these clinical advances can create new points of view in other sciences and their combination with basic sciences such as statistics can improve these researches. in statistical genetics, linkage analysis is a way of finding the exact locus of a diseas...

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...

Journal: :crop breeding journal 0
m. tatari isfahan agricultural and natural resources research and education center, agricultural research, education and extension organization (areeo), isfahan, iran. a. ghasemi a. mousavi

identifying and selecting superior genotypes in native germplasm is one method for breeding fruit trees. five different ecotypes of jujube (ziziphus jujuba mill.) were collected from different regions of isfahan province, iran, for evaluation of their morphological and pomological traits during 2011-13. results showed that quantitative traits were more significant within ecotypes. ‘‘najafabad’ ...

Journal: :journal of plant physiology & breeding 2013
aysan saebnazar fatemeh rahmani

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...

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