نتایج جستجو برای: نشانگرهای issrs

تعداد نتایج: 3079  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1390

تنوع ژنتیکی در گیاهان به عوامل مختلفی از جمله نوع سیستم تولید مثلی ارتباط دارد. شیرین بیان (fabaceae) glycyrrhiza glabra l. گیاه علفی و دارویی است. در این پروژه تنوع ژنتیکی بین و درون جمعیتی چهار جمعیت شیرین بیان از شمال غرب کشور با استفاده از نشانگرهای issrs بررسی شد. تنوع ژنتیکی درون جمعیتی بر اساس شاخص تنوع ژنی نی و شاخص اطلاعات شانون و فاصله ژنتیکی بین جمعیت ها بر اساس فاصله ژنتیکی نی بدست ...

2009
Robert P. Adams Jim A. Bartel

Five Hesperocyparis (Cupressus) abramsiana groves were analyzed by Inter-Simple Sequence Repeats (ISSRs). ISSRs analyses revealed geographical differentiation among the groves (= Silba's subspecies) with the Butano Ridge grove being the most distinct in both ISSRs and terpenoids. Combined ISSR and terpenoid data support the recognition of Hesperocyparis. abramsiana var. abramsiana and Hesperocy...

2009
Robert P. Adams Jim A. Bartel

Hesperocyparis (Cupressus) goveniana and putative Cupressus goveniana subsp. gibsonensis plus H. pygmaea were analyzed by Inter-Simple Sequence Repeats (ISSRs). The ISSRs analyses support the continued recognition H. pygmaea and H. goveniana, but the recognition of Cupressus goveniana subsp. gibsonensis Silba was not supported. Phytologia 91(2):277-286 (August, 2009).

Journal: :journal of agricultural science and technology 2016
j. ashraf w. malik m. iqbal a. khan a. qayyum

robust information of genetic diversity among bt cotton genotypes is still lacking and availability of several marker systems has prompted us to compare their utility for the detection of genetic diversity. here, we report the comparative efficiency of morphological and molecular markers (est-ssrs and issrs) in determining the genetic diversity among 30 pakistani bt cotton genotypes. three diff...

Journal: :Genetics and molecular research : GMR 2014
P Madesis E M Abraham A Kalivas Iota Ganopoulos A Tsaftaris

Dactylis glomerata L. is an important forage species in the Mediterranean region, and in other regions with a similar climate. Genetic material from 3 locations in north, central, and south Greece was studied, using morphological traits, SSR, and ISSR molecular markers. Morphological analysis revealed differences among the geographic locations studied for all morphological traits, except the nu...

Journal: :Journal of Insect Science 2001
Patrick Abbot

PCR-based molecular markers are well suited for questions requiring large scale surveys of plant and animal populations. Inter-simple Sequence Repeats or ISSRs are analyzed by a recently developed technique based on the amplification of the regions between inverse-oriented microsatellite loci with oligonucleotides anchored in microsatellites themselves. ISSRs have shown much promise for the stu...

Journal: :BioTechniques 2003
H Allen Sylvester

As part of this laboratory’s honeybee genetics and breeding program, DNA markers are needed for uses such as the identification of populations and species and marker-assisted breeding. In particular, DNA markers are needed to discriminate Varroa-mite-resistant Russian honey bees, imported from fareastern Russia, and their offspring (1), from the other honey bees found in the USA. I tried RAPDs,...

2007
Ilia Anna Serra Gabriele Procaccini Maria Carmela Intrieri Marianna Migliaccio Silvia Mazzuca Anna Maria Innocenti

Posidonia oceanica is an endemic seagrass species in the Mediterranean Sea. Due to its ecological importance, it has been the subject of several genetic studies aimed at increasing general knowledge of the system and helping to define appropriate management strategies. We compared the efficiency of 2 different classes of molecular markers, ‘inter simple sequence repeats’ (ISSRs) and ‘simple seq...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی گرگان 1390

شمشاد (buxus hyrcana)، گونه درختی نادر و در معرض خطر در بعضی نواحی جنگل های هیرکانی شمال ایران است که نقش مهمی را در نگهداری از چشم انداز و اکوسیستم بازی می کند. در این مطالعه، نشانگرهای rapd و issr به منظور بررسی تنوع ژنتیکی سه جمعیت طبیعی شمشاد استفاده شدند. 4 آغازگر rapd 39 باند با 37 (87/94%) چند شکلی را تولید کردند و 4 آغازگر issr 42 باند با 38 (5/90%) چند شکلی را افزودند. تنوع ژنتیکی به و...

2013
Sara Safari Ali-Ashraf Mehrabi Zeinab Safari

Evaluation of relationships is of prime importance in any breeding studies. In current research, genetic diversity among different rapeseed genotypes from several geographical origins including Canada, Australia, Germany, France, Denmark, Netherlands, Sweden, Iran, and Somegenotypesof unknown origin, were evaluated by RAPD and ISSR markers. All of the generated bands using 12 RAPDs and 15 ISSRs...

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