نتایج جستجو برای: gene diversity

تعداد نتایج: 1302020  

A. Tarang, P. Rafia

Mitochondrial DNA (mtDNA) has been used extensively to study population genetics because it has the unique features of maternal inheritance, a relatively fast rate of evolution and lack of recombination. A total of 82 unrelated sheep from 10 Iranian indigenous sheep breeds were investigated to determinate the maternal genetic diversity using a sequence of a 685 bp segment of the displacement lo...

Iranian mangrove forests provides valuable information to prevent genetic erosion in the gene pool of these ecosystems. The aim of this study was to investigate the genetic diversity among mangrove forests located in four different regions of Iran, based on morphological characteristics and microsatellite markers. Cluster analysis of molecular data, using neighbor joining algorithm classified t...

Journal: :Theoretical and Applied Genetics 1999

2012
Xueqin Zeng Stefan G. Michalski Markus Fischer Walter Durka

Aims The dispersal of pollen and seeds is spatially restricted and may vary among plant populations because of varying biotic interactions, population histories or abiotic conditions. Because gene dispersal is spatially restricted, it will eventually result in the development of spatial genetic structure (SGS), which in turn can allow insights into gene dispersal processes. Here, we assessed th...

BACKGROUND: Gammacoronaviruses, which are single-stranded, positive-sense RNA viruses, are responsible for a wide variety of existing and emerging diseases in birds. The Gammacoronaviruses primarily infect avian hosts. OBJECTIVES: This study aimed to investigate the genetic diversity of Gammacoronaviruses in quail population in Iran. METHODS: In the period from 2016 to 2018, samples from 47 qua...

Journal: :iranian journal of public health 0
a shahbazi a raeisi m nateghpour h mirhendi m mohebali m asmar

background: plasmodium vivax malaria accounts for approximately 88% of malaria cases in iran. there is limited in­formation on genetic diversity of p. vivax in the country and a need to develop and apply an effective vaccine against the dis­ease is necessary. among many potential candidates, msp -3β gene is promising target. this study was designed and car­ried out to determine the variation of...

Journal: :iranian journal of parasitology 0
a shahbazi a raeisi m nateghpour h mirhendi m mohebali m asmar

background: the worldwide distribution of p. vivax has expanded significantly and the number of reported cases has been on the rise. approximately 88% of malaria cases in iran are caused by plasmodium vivax , and in order to management of the disease, understanding the population genetic structure of the parasite is necessary for designing and applying drugs and vaccines. among many potential c...

Journal: :iranian journal of microbiology 0
raheem haddad department of agricultural biotechnology, faculty of engineering and technology, imam khomeini international university, qazvin, iran. esmat alemzadeh department of agricultural biotechnology, faculty of engineering and technology, imam khomeini international university, qazvin, iran. alireza ahmadi department of biomedical sciences, alzahra university, tehran, iran. ramin hosseini department of agricultural biotechnology, faculty of engineering and technology, imam khomeini international university, qazvin, iran. maryam moezzi persian gulf & oman sea ecological research institute, bandar abbas, iran.

background and objectives: chlorophyceae are important constituents of marine phytoplankton. the taxonomy of chlorophyceae was traditionally based solely on morphological characteristics. in the present research project, genetic diversity was investigated to analyze five species of chlorophyceae from waters of the persian gulf. materials and methods:   a clone library of the ribosomal small sub...

Journal: :journal of agricultural science and technology 2016
r. salahlou n. safaie m. shams-bakhsh

macrophomina phaseolina is an important soil-borne pathogen causing charcoal rot in many important crop plants including sesame, in iran. a total of 60 isolates of m. phaseolina were collected from the main sesame producing regions in ten provinces of iran. the genetic diversity among m. phaseolina populations was estimated using inter-simple sequence repeat (issr), focusing particularly on geo...

Journal: :Applied and environmental microbiology 2012
Boojala Vijay B Reddy Dimitris Kallifidas Jeffrey H Kim Zachary Charlop-Powers Zhiyang Feng Sean F Brady

The number of bacterial species estimated to exist on Earth has increased dramatically in recent years. This newly recognized species diversity has raised the possibility that bacterial natural product biosynthetic diversity has also been significantly underestimated by previous culture-based studies. Here, we compare 454-pyrosequenced nonribosomal peptide adenylation domain, type I polyketide ...

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