نتایج جستجو برای: taraxacum phylogeny

تعداد نتایج: 20398  

2009
Mark Vellend Emily B. M. Drummond Jennifer L. Muir

We tested for ecological differences among apomictic dandelion genotypes in Vancouver, British Columbia, Canada, in order to establish a basis for predicting potential ecological consequences of genetic variation in invading populations. A greenhouse experiment on 30 potential clonal families revealed significant among-family variation for leaf morphological traits, and molecular analyses confi...

Journal: :Systematic biology 2002
Emília P Martins Elizabeth A Housworth

We explored the impact of phylogeny shape on the results of interspecific statistical analyses incorporating phylogenetic information. In most phylogenetic comparative methods (PCMs), the phylogeny can be represented as a relationship matrix, and the hierarchical nature of interspecific phylogenies translates into a distinctive blocklike matrix that can be described by its eigenvectors (topolog...

2018
Veronica Preite Carla Oplaat Arjen Biere Jan Kirschner Wim H van der Putten Koen J F Verhoeven

DNA methylation is one of the mechanisms underlying epigenetic modifications. DNA methylations can be environmentally induced and such induced modifications can at times be transmitted to successive generations. However, it remains speculative how common such environmentally induced transgenerational DNA methylation changes are and if they persist for more than one offspring generation. We expo...

Journal: :journal of cell and molecular research 0
morteza hashemi attar mohammad reza nassiri

preserving genetic diversity of iranian native chickens is significant in order to perform breeding programs and improved production. genetic diversity among close populations can be determined by investigating their phylogenetic relations. different approaches have been applied to determine the phylogenic relations from which genomic sequencing has been considered the most functional approach....

Journal: :Botanica Serbica 2023

This paper presents new records and noteworthy data on the following taxa in SE Europe adjacent regions: red algae Hildenbrandia rivularis, saprotrophic fungus Cryptomarasmius corbariensis, lichenised fungi Lecanora stenotropa, Micarea misella Sticta sylvatica, liverworts Fossombronia caespitiformis Peltolepis quadrata, mosses Dicranoweisia cirrata Fissidens exilis, horsetail Equisetum ? moorei...

2013
M. Amin Mir

The present study investigates the qualitative and quantitative analysis of the major bioactive constituents of medicinally important plant Taraxacum officinale in its aqueous and methanol extract of root, stem and flower. Saponins, flavonoids, alkaloids, phenols were highly concentrated in the stem, root and flower, with the higher concentration of flavonoids in the flower extracts. Phenols an...

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