• Publications
  • Influence
Strong genetic differentiation between Gymnadenia conopsea and G. densiflora despite morphological similarity
TLDR
Morphologically, the taxa differed significantly in the mean value of a number of diagnostic characters, and a discriminant analysis showed that the morphological variability is substantial, and on the individual level an unequivocal assignment is not possible as 96% of G. conopsea, but only 77% ofG.
Molecular diversity and physical mapping of 5S rDNA in wild and cultivated oat grasses (Poaceae: Aveneae).
TLDR
The "uncommon" 5S gene sequences detected in some Aveneae are not necessarily nonfunctional as pseudogenes because the essential features of the internal control region are maintained even after such duplication events.
Duthieeae, a new tribe of grasses (Poaceae) identified among the early diverging lineages of subfamily Pooideae: molecular phylogenetics, morphological delineation, cytogenetics and biogeography
TLDR
Morphological, cytogenetic and biogeographical analyses point to warm and humid conditions as the ancestral bioclimatic niche of Phaenosperma and Duthieeae, whereas adaptation to cold and drought occurred only in a part of DuthIEeae but was obviously less successful than in the widespread and much more species-rich tribe Stipeae.
Disposition of ribosomal DNAs in the chromosomes of perennial oats (Poaceae: Aveneae)
TLDR
A new model was devised to explain this non-random distribution of both rDNAs in nucleolar-organizing chromosomes, which identified the Rabl orientation of chromosomes as ensuring a spatial proximity of 5S to 45S rDNA in interphase nuclei, even if they were localized in opposite arms.
Chromosomal localization and evolution of satellite DNAs and heterochromatin in grasses (Poaceae), especially tribe Aveneae
TLDR
Proportions of satDNAs and other sequences of the heterochromatin relative to the entire genome appear subjected to a much faster evolutionary change than the rather stable proportions of the rDNAs.
Chromosome evolution in grass tribes Aveneae/Poeae (Poaceae): insights from karyotype structure and molecular phylogeny
TLDR
Important progress has been made to identify the closest relatives of Avena, the most important crop plant genus, and other aspects of chromosomal organization, such as the localization of the different ribosomal DNAs on particular chromosomes, are rather conserved through multiple speciation processes.
Polyphyly of the grass tribe Hainardieae (Poaceae: Pooideae): identification of its different lineages based on molecular phylogenetics, including morphological and cytogenetic characteristics
TLDR
Support is given for the abandonment of tribe Hainardieae and argue to abandon Poeae subtribe Scribneriinae, which are both highly polyphyletic and phylogenetically distant.
Karyosystematics of the Australasian stipoid grass Austrostipa and related genera: chromosome sizes, ploidy, chromosome base numbers and phylogeny
TLDR
The mechanisms of chromosome evolution and the origin of the considerable variation in chromosome base numbers in the subfamily Pooideae are discussed in the context of chromosomes evolution and biosystematics.
...
1
2
3
...