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Taraxacum

By vojta , 29 May 2019

Analysis of wild Taraxacum bicorne Dahlst. (Compositae–Crepidinae) as a potential alternative natural rubber crop

Taraxacum koksaghyz Rodin, a dandelion from the steppes of south-eastern Kazakhstan, has been known for long time as potential rubber producer, as a temperate region alternative to the tropical rubber tree Hevea brasiliensis Müll. Arg.. In this work, we evaluate Taraxacum bicorne Dahlst. (wild populations), a closely related congener of T. koksaghyz.

Články
Institute of Botany, Czech Academy of Sciences
Population genetics
Taraxacum
Taxonomy
Science, research, biology
By vojta , 21 November 2018

Taxonomic principles, reproductive systems, population genetics and relationships within selected groups of genus Taraxacum (Asteraceae)

Genus Taraxacum (Asteraceae), having ∼60 sections and 2,800 species, is known for its complicated evolutionary relationships and taxonomy due to processes like frequent hybridization, polyploidization, asexual reproduction, clonality and low structural morphological variability. Various taxonomical concepts and approaches are reviewed, evaluated and discussed from point of view of their ability to deal with such a complicated genera as is Taraxacum. Various processes responsible for the complicated situation within Taraxacum are discussed and reviewed. Section Dioszegia, comprising T.

Články
Institute of Botany, Czech Academy of Sciences
Phylogeny
Phylogeography
Population genetics
Faculty of Science, Charles University
Taraxacum
Taxonomy
Science, research, biology
By vojta , 10 August 2017

Taraxacum sect. Orientalia (Compositae-Crepidinae) and the West Himalayan dandelions: A new interpretation

The Taraxacum flora of the West Himalaya represents one of the dandelion diversity hotspots, with at least 17 sections and about 150 known species. A number of names published from that region were referred to T. sect. Orientalia Handel-Mazzetti in the literature. All these names are revised and newly interpreted, with emphasis on plants erroneously determined as T. stenolepium. The revision is based on both older herbarium collections and a new material from expeditions of the late L. Klimeš. A new section, T. sect.

Články
Institute of Botany, Czech Academy of Sciences
Taraxacum
Taxonomy
Science, research, biology
By vojta , 20 February 2016

Identification of oligoclonal agamospermous microspecies: taxonomic specialists versus microsatellites

There has been a decrease in the ability of biologists to identify their material correctly, particu- larly plants of complicated genera with common agamospermy, where old clonal entities are accorded the rank of species (microspecies). Agamospermous microspecies are taxonomic enti- ties recognizable from one another by a set of minute morphological features. The knowledge of microspecies is confined to a few specialists. Specialists usemicrospecies names but there could be inconsistencies in the taxonomic concepts used by different, geographically remote experts.

Články
Institute of Botany, Czech Academy of Sciences
Phylogeny
Population genetics
R
Taraxacum
Taxonomy
Science, research, biology
By vojta , 13 April 2015

Microsatellite variation, sexual reproduction and taxonomic revision of Taraxacum sect. Dioszegia: relationships at a large spatial scale

Taraxacum serotinumThe coexistence of agamospermy and sexuality characterizes most of the ~60 sections of the genus Taraxacum. Section Dioszegia, comprising T. serotinum and its allies, are an exception because only sexuals are reported for all the members of this group.

Články
Institute of Botany, Czech Academy of Sciences
Phylogeny
Phylogeography
Population genetics
Taraxacum
Taxonomy
Science, research, biology
Taraxacum
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This work by Vojtěch Zeisek is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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