Abstract The number of studies dealing with plant invasions is increasing rapidly, but the accumulating body knowledge has unfortunately also spawned confusion about terminology. Invasions are a global phenomenon and comparison geographically distant regions their introduced biota crucially important methodological approach for elucidation determinants invasiveness invasibility. Comparative alien floras provide substantial new insights to our understanding general patterns invasions. Such...

Abstract Epigenetic variation has been proposed to contribute the success of asexual plants, either as a contributor phenotypic plasticity or by enabling transient adaptation via selection on transgenerationally stable, but reversible, epialleles. While recent studies in experimental plant populations have shown potential for epigenetic mechanisms adaptive phenotypes, it remains unknown whether heritable ecologically relevant traits is at least partially epigenetically determined natural...

The genus Taraxacum (Asteraceae, Crepidinae) is rather underexplored in the Asiatic part of Russia, and many published names require a revision. This particularly concerns T. sect. Borealia, circumpolar Arcto-Alpidic group. We revised all referable to Borealia from continental Russia. On basis our material Altai Central Siberia, new collection Kamchatka older herbarium collections, we recognize 62 species, including 20 13 Russian Altai, four species Irkutsk Region, another two Kamchatka. A...

Summary Kirschner, J. & Štňpánek, J.: A nomenclatural checklist of supraspecific names in Taraxacum. –Taxon 46: 87‐98. 1997. – ISSN 0040‐02 Names subdivisions the genus Taraxacum are listed and critically analysed. Validity legitimacy determined, all valid given types, type specimens selected quoted where available. Comments confined to status names; for important taxonomic synonyms accepted given, considered correct highlighted.

Abstract DNA methylation is one of the mechanisms underlying epigenetic modifications. methylations can be environmentally induced and such modifications at times transmitted to successive generations. However, it remains speculative how common transgenerational changes are if they persist for more than offspring generation. We exposed multiple accessions two different apomictic dandelion lineages Taraxacum officinale group ( alatum T. hemicyclum ) drought salicylic acid (SA) treatment....

Sequence variation in 2.2 kb of non-coding regions the chloroplast genome eight dandelions (Taraxacum: Lactuceae) from Asia and Europe is interpreted light phylogenetic signal base substitutions vs. indels (insertions-deletions). The four displayed a total approximately 30 structural mutations which 9 are potentially phylogenetically informative. Insertions, deletions, an inversion were found that involved consecutive stretches up to 172 bases. When compared relationships genomes based on...

This study aims to identify genetically diverged clone mates in apomictic dandelions. Clone are defined as individuals that may have a result of mutation accumulation and undergone only clonal reproduction since their most recent common ancestor. Based on distinctive morphology an aberrant rare chloroplast haplotype, northwest European Taraxacum section Naevosa well suited for the detection lineages which has occurred. In case strictly reproduction, nuclear genetic variability was expected...

Juncus and Luzula are the largest, almost cosmopolitan, genera in Juncaceae. Relationships within among other of Juncaceae (Distichia, Marsippospermum, Oxychloë, Patosia Rostkovia) remain incompletely resolved. RbcL sequence data resolved a part supraspecific phylogeny, but many clades polytomic. For this reason, non-coding cpDNA regions, trnL intron trnL-trnF intergenic spacer, were sequenced. We intended to create hypotheses relationships test classification sections, primary goal study...

Abstract Taraxacum sect. Erythrosperma (H. Lindb.) Dahlst. in Corsica was revised on the basis of a detailed study old collections used by J. L. van Soest his first studies genus Corsica, and new cultivations. All names based specimens from are interpreted, 16 species section recognized. Particular attention paid to group with number endemics or subendemics, around T. purpureomarginatum . Four described. A newly interpreted typified. studied cited, exception taxa common Europe. known...