نتایج جستجو برای: نشانگر issr

تعداد نتایج: 11606  

Journal: :Genetics and molecular research : GMR 2010
X C Lin Y F Lou J Liu J S Peng G L Liao W Fang

Crossbreeding is an efficient means to increase production and quality in plants; however, hybridization is seldom reported in bamboo. We crossbred two bamboo species Phyllostachys kwangsiensis (female parent) and Phyllostachys bambusoides (male parent) for the first time, and obtained suspected bamboo hybrids. We identified two bamboo hybrids from the above parents using PCR/ISSR. We concluded...

Journal: :Genetics and molecular research : GMR 2012
A K R Abadio S S Lima M F Santana T M F Salomão A Sartorato E S G Mizubuti E F Araújo M V de Queiroz

Planting resistant varieties is the most effective control measure against the angular leaf spot of dry beans, a fungal disease caused by Pseudocercospora griseola. However, dry bean varieties with durable resistance are not easily obtained. Knowledge about the genetic variability of the pathogen population is key for the success of dry bean breeding programs aimed at developing resistant ...

2014
David Gramaje Maela León Marcela Santana Pedro W. Crous Josep Armengol Niklaus J. Grunwald

Cadophora luteo-olivacea is a lesser-known fungal trunk pathogen of grapevine which has been recently isolated from vines showing decline symptoms in grape growing regions worldwide. In this study, 80 C. luteo-olivacea isolates (65 from Spain and 15 from South Africa) were studied. Inter-simple-sequence repeat-polymerase chain reaction (ISSR-PCR) generated 55 polymorphic loci from four ISSR pri...

Journal: :BioTechniques 2007
Helena Korpelainen Kirsi Kostamo Viivi Virtanen

We have identified a fast and easy method for finding microsatellite markers that utilizes genome screening with inter-simple sequence repeat (ISSR) primers to detect microsatellite regions and to obtain sequence information flanking one side of the microsatellites and a restriction-ligation technique with a specific adaptor to allow sequence walking to obtain sequence information flanking the ...

2009
M. Kanimozhi P. Jayamani N. Nadarajan

An investigation was carried out on a collection of 23 blackgram genotypes involving 16 released varieties, six pre release cultures and one wild species Vigna mungo var. silvestris to study the genetic diversity using twelve ISSR primers. The number of alleles produced by different ISSR primers ranged from eight to 17 with an average of 11.5 per primer and the level of polymorphism was found t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده کشاورزی 1391

چکیده: به منظور بررسی تنوع ژنتیکی 21 ژنوتیپ مختلف گندم دوروم، تحقیق حاضر در سالزراعی 1390-1389 در دو بخش زراعی و مولکولی در مزرعه تحقیقاتی و آزمایشگاه بیوتکنولوژی پردیس کشاورزی و منابع طبیعی دانشگاه رازی اجرا شد. ارزیابی صفات زراعی، مورفولوژیک و مقاومت به خشکی بر اساس طرح آزمایشی بلوک های کامل تصادفی با سه تکرار و در دو شرایط تنش و بدون تنش آبی انجام گردید. تنوع ژنتیکی علاوه بر صفات زراعی، فیز...

2009
Marie Malice Nicolas Martin Jorge A. Rojas-Beltran Pierre Bertin Jean-Pierre Baudoin

ISSR molecular markers have been used to investigate genetic diversity of oca (Oxalis tuberosa Mol.), an Andean neglected tuber crop species. Sampling procedure allowed a preliminary study of the genetic diversity at the intraand intervarietal levels. Twenty tuber lots conserved in situ in the microcentre of Candelaria and ex situ in the Toralapa Centre (Bolivia) were identified. Four ISSR prim...

2014
Sinchan Adhikari Soumen Saha Tapas Kumar Bandyopadhyay Parthadeb Ghosh

The aim of the present study was to develop a genetic sex marker for the pointed gourd (Trichosanthes dioica Roxb.) to allow gender determination at any stage in the life cycle. Screening of genomic DNA with intersimple sequence repeat (ISSR) primers was used to discover sex-specific touch-down polymerase chain reaction (Td-PCR) amplification products. Using pooled DNA from male and female geno...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده کشاورزی 1390

پوسیدگی ریشه و طوقه گوجه فرنگی از بیماری های مهم این محصول در استان خوزستان می باشد. برای بررسی این بیماری از مزارع گوجه فرنگی در شهرهای بهبهان، رامهرمز، دزفول، شوش، شوشتر و گتوند نمونه برداری بعمل آمد. از کشت نمونه های ریشه و طوقه گیاهان آلوده در آزمایشگاه جمعا 108 جدایه از فوزاریوم بدست آمد که پس از شناسایی در 3 گونه f.solani (79 جدایه)، f.oxysporum (8 جدایه) و f.equiseti (21 جدایه) قرار گرفت...

Journal: :Genetics and molecular research : GMR 2012
H C C Ramos M G Pereira L S A Gonçalves A P C G Berilli F O Pinto E H Ribeiro

Morpho-agronomic and molecular (RAPD and ISSR markers) data were used to evaluate genetic distances between papaya backcross progenies in order to help identify agronomically superior genotypes. Thirty-two papaya progenies were evaluated based on 15 morpho-agronomic characteristics, 20 ISSR and 19 RAPD primers. Manhattan, Jaccard and Gower distances were used to estimate differences based ...

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