نتایج جستجو برای: مارکر issr
تعداد نتایج: 3120 فیلتر نتایج به سال:
The aim of this study was to produce sugarcane plantlets from cell suspension culture and study its genetic fidelity using molecular markers. The study was carried out using sugarcane varieties Co 86032 and Q117. Callus cultures of both the varieties were optimized using six different callus induction media. After screening the growth response of callus on six different callus induction media, ...
The effect of cattle grazing on the genetic structure of native grass populations has received little attention. We investigated the effect of cattle grazing on genetic variation in Idaho fescue (Festuca idahoensis Elmer) using ISSR (inter-simple sequence repeat) DNA markers. The ISSR markers are hypervariable and are generally interpreted as being selectively neutral. Idaho fescue tillers were...
the effectiveness of irap, remap, ssr, and issr markers were investigated to assess genetic diversity among and within eight medicago sativa l. populations. a total of 101, 119, 117 loci and 31 alleles were amplified using 10 irap, 14 remap, 16 issr and eight ssr primers, respectively. irap markers generated the maximum proportion of polymorphic loci per primer (pplp) while the maximum value of...
در این مطالعه 16 صفت مورفولوژیک روی 250 نمونۀ گیاهی (بوته) و 13 آغازگر issr بر 25 نمونه از دو گونۀ زعفران وحشی ایرانی (crocus speciosus و crocus cancellathus) بررسی شد. بیشترین ضریب تنوع مربوط به ضخامت گلبرگ (25/71 درصد) و کمترین آن مربوط به صفت طول برگ (08/15 درصد) بود. تجزیۀ خوشهای بر اساس صفات مورفولوژیک نمونههای مطالعه شده را به سه گروه تقسیم کرد. سیزده آغازگر issr چند شکلی بالایی ( 46/94...
0360-8352/$ see front matter 2012 Elsevier Ltd. All rights reserved. http://dx.doi.org/10.1016/j.cie.2012.12.001 q This manuscript was processed by Area Editor Iris F.A. Vis. ⇑ Corresponding author. Current address: Operations Research Dept., Institute of Statistical Studies and Research (ISSR), Cairo University, Egypt. Tel.: +2
Micropropagated plantlets derived from three different grape rootstock genotypes namely, Dogridge (Vitis champini), SO4 (V. berlandieri×V. rupestris) and ARI-H-144 (V. vinifera×V. labrusca) were subjected to randomly amplified polymorphic DNA (RAPD) and inter simple sequence repeats (ISSR) analyses in order to evaluate their genetic stability and/or detect likely existing variations among in vi...
abstract in this study, two wild iranian crocus species (crocus speciosus and crocus cancellathus) were examined using 16 morphological characters and 13 issr primers on 250 and 25 plant samples, respectively. the highest and lowest coefficient of variations were belonged to the thickness of the petals (71.25%) and the leaf length (15.08%), respectively. cluster analysis based on morphological ...
Better knowledge of medicinal plant species and their conservation is an urgent need worldwide. Decision making for conservation strategies can be based on the knowledge of the variability and population genetic structure of the species and on the events that may influence these genetic parameters. Achyrocline flaccida (Weinm.) DC. is a native plant from the grassy fields of South America with ...
Although tomato psyllid, Bactericera cockerelli (Sulc) (Homoptera, Psyllidae), annually causes significant losses in potato and tomato crops in eastern Mexico and the central United States, infestations in western North America have been historically rare. However, substantial populations appeared in 2001 in western North America and caused losses in tomato production exceeding 80%; losses in 2...
شناخت تنوع ژنتیکی و روابط خویشاوندی در مرکبات برای برنامه ریزی و کاربرد برنامههای اصلاحی، حفظ تنوعزیستی، ثبت ارقام جدید و انجام مطالعات مولکولی لازم است. در این پژوهش، تنوع ژنتیکی 29 رقم مرکبات شامل ارقام پرتقال، نارنگی، نارنج، پوملو و تیپهای طبیعی با استفاده از نشانگرهای ISSR مورد ارزیابی قرار گرفتند. از مجموع 97 باند امتیازدهی شده برای نشانگر ISSR، تعداد 78 باند، معادل 22/80 درصد باندها ...
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