نتایج جستجو برای: populations

تعداد نتایج: 236496  

Journal: :journal of cell and molecular research 0
saber zahri gadir nouri-ganbalani shahram agahi

crustacean hemocyanins represent a unique case of molecular heterogeneity among oxygen-carrying proteins. two populations of gammarus lacustris and six populations of gammarus komareki were identified and isolated from aquatic habitats of ardabil (northwest of iran). the populations were nominated based on name of isolated region. principal component analysis of morphological absolute attribute...

Journal: رستنیها 2010

Ranunculus L. with about 600 species is the largest genus in the Ranunculaceae. Problems in the taxonomy of the genus are due to high variability and polymorphism among different individuals and populations of certain species. Morphological characters of nectar scale have been considered as valuable taxonomical characters in some perennial species in some groups (Praemorsa, Grumosa, Rhizomatosa...

Journal: :journal of agricultural science and technology 2014
p. zamani r. h. sajedi m. ghadamyari n. memarizadeh

the toxicity of chlorpyrifos to three iranian populations of two-spotted spider mite, collected from isfahan (isr), yazd (yz) and guilan (gus2) provinces were surveyed using the residual contact vial bioassay. the bioassay results showed that resistance ratios of isr and yz populations were 176.90 and 9.78 fold compared to the gus2 population, respectively. determination of esterase and glutath...

Alireza Bahraminejad, Ghasem Mohammadinejad

In this study, Simple Sequence Repeat markers (SSR) were used to investigate the genetic variation between 49 cumin ecotypes collected from 9 different provinces of Iran. SSR primers Elap1479, Elap040 and Elap1493 showed the highest (89%), while Elap1340 and Elap017 showed the lowest (56%) number of polymorphic bands. Polymorphism information content (PIC) values varied between 0.18 - 0.37. The...

Fang Chen, Qiqun Cheng,

 An analysis of eight microsatellite loci in 90 individuals was performed to define the genetic structure and variability of three estuarine populations of Coilia mystus: 30 individuals each  collected from ChangJiang River (Yangtze River) estuary-CJ, MinJiang River estuary-MJ, and ZhuJiang River (Pearl River) estuary-ZJ. The results showed polymorphic information contents (PIC) of 0.7...

Journal: :iranian journal of biotechnology 2006
mahmmood malaki mohammad reza naghavi hoshang alizadeh payam potki mehrbanoo kazemi

little information is available regarding genetic variation in wild wheat relatives from iran. in this study, genetic diversity of 36 populations of wild einkorn wheat, triticum boeoticum, was studied using amplified fragment length polymorphism (aflp) primer combinations. seventeen aflp primer combinations led to amplify 979 scorable fragments ranging from 50 to 500 bp and of these, 429 (44%) ...

Journal: :iranian journal of public health 0
d.d.farhud m. mahmoudi m.s.kamali m.marzban l.andonian r.saffari

a total of 8641 married couples were investigated from 28 iranian populations for consanguineous marriages and coefficient of inbreeding. the results showed considerable differences in the rate and kind of consanguineous matings among the various urban, rural, tribal, and religious populations studied. the observed frequencies of the consanguineous matings in the populations of iran are higher ...

Journal: :Heredity 1969

ژورنال: علوم آب و خاک 2000
آخوندی, منصور, طهماسبی, غلامحسین , عبادی , رحیم , قوجق, دردی ,

An important and fundamental step in breeding honeybees is the separation of honeybee populations in Iran. During the years 1992-1996, several research works were directed towards the investigation of genetic populations of the Iranian honeybee (Apis mellifera L.), using biochemical methods. For this purpose, samples of worker bees were taken from 251 colonies of 115 apiaries in 84 cities in 21...

A.V. Shelyov, B.M. Gopka I.O. Suprun O.V. Melnyk S.D. Melnychuk V.G. Spyrydonov V.V. Dzitsiuk

The aim of the present study was the conducting of comparative analysis of allele pool of Ukrainian population of Thoroughbred horses and the populations from England, USA, Russia and South Korea using microsatellite loci of DNA on the basis of our own researches and literary sources. Comparative analysis of allele pool of Thoroughbred populations from different countries was conducted using 6 ...

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