نتایج جستجو برای: tragopogon buphthalmoides

تعداد نتایج: 176  

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2014
Richard J A Buggs Jonathan F Wendel Jeffrey J Doyle Douglas E Soltis Pamela S Soltis Jeremy E Coate

Allopolyploidization (hybridization and whole-genome duplication) is a common phenomenon in plant evolution with immediate saltational effects on genome structure and gene expression. New technologies have allowed rapid progress over the past decade in our understanding of the consequences of allopolyploidy. A major question, raised by early pioneer of this field Leslie Gottlieb, concerned the ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2012
Michael Chester Joseph P Gallagher V Vaughan Symonds Ana Veruska Cruz da Silva Evgeny V Mavrodiev Andrew R Leitch Pamela S Soltis Douglas E Soltis

Polyploidy, or whole genome duplication, has played a major role in the evolution of many eukaryotic lineages. Although the prevalence of polyploidy in plants is well documented, the molecular and cytological consequences are understood largely from newly formed polyploids (neopolyploids) that have been grown experimentally. Classical cytological and molecular cytogenetic studies both have show...

2014
V. D. Mitic V. P. Stankov-Jovanovic M. D. Ilic P. J. Vasiljevic G. S. Stojanovic

The antioxidant properties of Galium verum L. (Lady’s Bedstraw) and Tragopogon pratensis subsp. pratensis (Goat’s beard) methanol extracts, from localities in Serbia were evaluated, through determination of total phenolics and flavonoids content, as well as DPPH • (1,1-diphenyl-2-picrylhydrazyl) radical scavenging, ABTS •+ (2,2-azinobis-(3ethylbenzthiazoline-6-sulfonic acid) radical cation deco...

2012
Dean E. Pearson Teal Potter John L. Maron

1. Biotic resistance is a commonly invoked hypothesis to explain why most exotic plant species naturalize at low abundance. Although numerous studies have documented negative impacts of native consumers on exotic plant performance, longer-term multi-generation studies are needed to understand how native consumer damage to exotics translates to their population-level suppression over large lands...

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