نتایج جستجو برای: plant species selection

تعداد نتایج: 1157485  

Plant Breeding has utilized a wide range of techniques and methods to improve the quality and quantity of plants. The molecular markers are the tools that have provided a new perspective for plant breeding advancements. This article has reviewed the various advantages and uses of molecular markers and the utilization of the high potential of natural polymorphisms within communities, combined wi...

2015
Francisco Ceacero Tomás Landete-Castillejos Augusto Olguín María Miranda Andrés García Alberto Martínez Jorge Cassinello Valentín Miguel Laureano Gallego

Ungulates select diets with high energy, protein, and sodium contents. However, it is scarcely known the influence of essential minerals other than Na in diet preferences. Moreover, almost no information is available about the possible influence of toxic levels of essential minerals on avoidance of certain plant species. The aim of this research was to test the relative importance of mineral co...

Journal: :desert 0
m. saberi faculty of natural resources, university of zabol, zabol, iran m. jafari professor, faculty of natural resources, university of tehran, karaj, iran a. tavili associate professor, faculty of natural resources, university of tehran, karaj, iran m.a. zare chahouki associate professor, faculty of natural resources, university of tehran, karaj, iran m. tahmoures msc. graduate, faculty of natural resources, university of tehran, karaj, iran

the aim of this research was to compare the amounts of existing mineral elements in plant aerial parts, litter and soil ofthree range species (bromus tomentellus, psathyrostachys fragilis, agropyron tauri) in order to investigate the litter effectof species on soil properties of taleghan rangeland. the measured mineral elements include carbon, nitrogen,phosphorous and potassium. after selection...

Journal: :Trends in biotechnology 2013
Elisabeth Jonas Dirk-Jan de Koning

Plant breeding largely depends on phenotypic selection in plots and only for some, often disease-resistance-related traits, uses genetic markers. The more recently developed concept of genomic selection, using a black box approach with no need of prior knowledge about the effect or function of individual markers, has also been proposed as a great opportunity for plant breeding. Several empirica...

2017
Yves Clément Gautier Sarah Yan Holtz Felix Homa Stéphanie Pointet Sandy Contreras Benoit Nabholz François Sabot Laure Sauné Morgane Ardisson Roberto Bacilieri Guillaume Besnard Angélique Berger Céline Cardi Fabien De Bellis Olivier Fouet Cyril Jourda Bouchaib Khadari Claire Lanaud Thierry Leroy David Pot Christopher Sauvage Nora Scarcelli James Tregear Yves Vigouroux Nabila Yahiaoui Manuel Ruiz Sylvain Santoni Jean-Pierre Labouisse Jean-Louis Pham Jacques David Sylvain Glémin

Base composition is highly variable among and within plant genomes, especially at third codon positions, ranging from GC-poor and homogeneous species to GC-rich and highly heterogeneous ones (particularly Monocots). Consequently, synonymous codon usage is biased in most species, even when base composition is relatively homogeneous. The causes of these variations are still under debate, with thr...

Journal: :Molecular ecology 2005
M Tsompana J Abad M Purugganan J W Moyer

RNA viruses are characterized by high genetic variability resulting in rapid adaptation to new or resistant hosts. Research for plant RNA virus genetic structure and its variability has been relatively scarce compared to abundant research done for human and animal RNA viruses. Here, we utilized a molecular population genetic framework to characterize the evolution of a highly pathogenic plant R...

2017
Nan Hu Dexin Ding Guangyue Li

Phytoremediation of radioactive waste is a process that uses plants to remove, transfer, or immobilize radionuclides from the contaminated soil, sediment, sludge, or water, and it is a useful method for treating large-scale low-level radionuclide contamination. However, there have not been established criteria which can be utilized to screen out suitable plant species that are capable of remedi...

Journal: :The American naturalist 2008
Robin Ann Smith Mark D Rausher

While there is abundant evidence to suggest that pollinators influence the evolution of plant floral traits, there is little direct evidence that interactions between plant species shape the evolution of such characteristics. The purpose of this study was to determine whether the presence of the morning glory Ipomoea purpurea alters patterns of selection on floral traits of its congener, Ipomoe...

Journal: :desert 2012
m. saberi m. jafari a. tavili m.a. zare chahouki m. tahmoures

the aim of this research was to compare the amounts of existing mineral elements in plant aerial parts, litter and soil ofthree range species (bromus tomentellus, psathyrostachys fragilis, agropyron tauri) in order to investigate the litter effectof species on soil properties of taleghan rangeland. the measured mineral elements include carbon, nitrogen,phosphorous and potassium. after selection...

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