نتایج جستجو برای: morphological diversity

تعداد نتایج: 309028  

2017
J. Bobin Jean-Luc Starck Y. Moudden Jalal M. Fadili

Over the last few years, the development of multi-channel sensors motivated interest in methods for the coherent processing of multivariate data. Some specific issues have already been addressed as testified by the wide literature on the so-called blind source separation (BSS) problem. In this context, as clearly emphasized by previous work, it is fundamental that the sources to be retrieved pr...

Journal: :International Journal of Biological and Chemical Sciences 2020

Journal: :علوم باغبانی ایران 0
بیتا خوانساری نژاد دانشجوی سابق کارشناسی ارشد، دانشیار، دانشیار و دانشجوی دکتری پردیس کشاورزی و منابع طبیعی دانشگاه تهران محمد رضا حسندخت دانشجوی سابق کارشناسی ارشد، دانشیار، دانشیار و دانشجوی دکتری پردیس کشاورزی و منابع طبیعی دانشگاه تهران وحیده ناظری دانشجوی سابق کارشناسی ارشد، دانشیار، دانشیار و دانشجوی دکتری پردیس کشاورزی و منابع طبیعی دانشگاه تهران ابوذر سورنی دانشجوی سابق کارشناسی ارشد، دانشیار، دانشیار و دانشجوی دکتری پردیس کشاورزی و منابع طبیعی دانشگاه تهران

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 ...

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: :journal of plant molecular breeding 2015
hajar abedinpour nad ali babaeian jelodar gholam ali ranjbar behrouz golein

having knowledge about genetic relationships among accessions is necessary for developing breeding strategies to produce improved cultivars. in present study, genetic diversity and inter-relationship among 29 genotypes of citrus were comparatively analyzed using morphological and rapd markers. significant variability was observed among citrus genotypes for 61 quantitative and qualitative morpho...

Journal: :BioEssays : news and reviews in molecular, cellular and developmental biology 2013
Didier Casane Patrick Laurenti

A series of recent studies on extant coelacanths has emphasised the slow rate of molecular and morphological evolution in these species. These studies were based on the assumption that a coelacanth is a 'living fossil' that has shown little morphological change since the Devonian, and they proposed a causal link between low molecular evolutionary rate and morphological stasis. Here, we have exa...

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