نتایج جستجو برای: ecotypes

تعداد نتایج: 2016  

2012
Julia Hillung José M. Cuevas Santiago F. Elena

The use of high-throughput transcript profiling techniques has opened the possibility of identifying, in a single experiment, multiple host mRNAs whose levels of accumulation are altered in response to virus infection. Several studies have used this approach to analyze the response of Arabidopsis thaliana to the infection by different RNA and DNA viruses. However, the possible differences in re...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Alexander Koeppel Elizabeth B Perry Johannes Sikorski Danny Krizanc Andrew Warner David M Ward Alejandro P Rooney Evelyne Brambilla Nora Connor Rodney M Ratcliff Eviatar Nevo Frederick M Cohan

The central questions of bacterial ecology and evolution require a method to consistently demarcate, from the vast and diverse set of bacterial cells within a natural community, the groups playing ecologically distinct roles (ecotypes). Because of a lack of theory-based guidelines, current methods in bacterial systematics fail to divide the bacterial domain of life into meaningful units of ecol...

2009
Michael Seifert Ali Banaei Jens Keilwagen Michael Florian Mette Andreas Houben François Roudier Vincent Colot Ivo Grosse Marc Strickert

Abstract: Arabidopsis thaliana is an important model organism in plant biology with a broad geographic distribution including ecotypes from Africa, America, Asia, and Europe. The natural variation of different ecotypes is expected to be reflected to a substantial degree in their genome sequences. Array comparative genomic hybridization (Array-CGH) can be used to quantify the natural variation o...

Journal: :بوم شناسی کشاورزی 0
سید فاضل فاضل کاخکی احمد نظامی مهدی پارسا محمد کافی

salinity is one of the most restrictions in plant growth in dry and semi dry land which effects production of many crops such as sesame. in order to study the phenology and morphology characteristics of 43 ecotypes and line of sesame (sesamum indicum l.) under salinity of irrigation water (5.2 ds.m-1) a field experiment was conducted at research farm of center of excellence for special crops, f...

Extended Abstract Introduction and Objective: Medicinal plants have many applications in the treatment of humans, among which chamomile is one of the most valuable and widely used medicinal plants in the world. One of the most important breeding programs is the recognition of genetic diversity for the initial evaluation of plant masses. For this purpose, a study of genetic diversity and classi...

Different responses of plant genotypes to the change of environmental conditions have been the most important and challenging issue for plant breeders and agronomists for the selection of superior genotypes. Cumin is one of the most important medicinal and aromatic plants in Iran that are strongly affected by varying environmental conditions. This study was aimed to investigate E×SD interaction...

ملکی فراهانی, سعیده, چایچی, محمد رضا,

 To evaluate the resistance of promising chickpea ecotypes to freezing temperatures, an experiment with eight promising cold tolerant chickpea was performed. The ecotypes consisting of 4301, 4322, 4360, 4361, 4366, 4380, 4715, 4816 along with a sensitive one (304) were sown in pots at natural conditions. All the chickpea ecotypes were exposed to freezing temp eratures at controlled conditions d...

Chamomile is a medicinal plant with high economic value. In this research, 20 chamomile ecotypes collected from different regions of Iran were evaluated for genetic and chemical diversity. DNA was extracted by CTAB and polymerase chain reaction was performed using 13 RAPD markers. Essential oils extraction was performed by water distillation using Clevenger system. Components of the essential o...

Journal: رستنیها 2004
B. Samadani M. Minbashi

In order to identify ecotyps of field binweed (Convolvulus arvensis L.), seeds from eight proviences, including 125 populations were gathered and sent to Weed Research Department of Plant Pests & Diseases Research Institute, Tehran, Iran. These seeds planted in a uniform environment condition in Tehran. On the base of 24 morphological and physiological characteristics of seedling that derived f...

2017
Nargis Naz Sana Fatima Mansoor Hameed Muhammad Ashraf Mehwish Naseer Farooq Ahmad

A study was conducted to investigate structural and functional modifications in three differently adapted ecotypes of Aeluropus lagopoides (Linn.) Trin. ex Thw. under saline conditions. Two ecotypes were collected from moderately saline Bailahwala Dahar (BD) and heavily salt-affected Ladam Sir (LS), respectively while one ecotype was selected from least saline Derawar Fort (DF), which was consi...

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