Hu and team reveal a rich diversity of chromosome counts in the Rhododendron genus, potentially reshaping understanding of species diversification and offering crucial insights for biodiversity conservation.
Tag - flow cytometry
Fi Gennu
Species delimitation and a new Betula species in section Costatae
Botanists have developed an integrated approach to identify differences between closely related species.
Alex Assiry
More DNA in golden-brown algae leads to bigger cells, but slower growth
The study fills a gap in knowledge in the effects of nuclear DNA size in single-cell algae and protists.
Alun Salt
Move over Factor 50! Can increasing their number of chromosomes help protect plants against UV?
Increased chromosome number due to UV is known to occur in lab experiments, but does it happen in real environments?
Liam Elliott
A long-lasting connection? Links between genome size and stomata size in plants
The variation in genome size between different plant species is enormous, with a variation of 2300-fold in flowering plants alone. Whilst variation in plant genome size is well recorded, it is debatable how much of this...
Puzzles in Moss Genome Evolution
Some plants have pairs of chromosomes, they’re diploid organisms like us. Other plants have more than two copies of chromosomes, they’re polyploid. Strawberries can even be octoploid. Mosses can be polyploid too, but a...
Multidirectional evolution of floral chemistry in deceptive Dactylorhiza orchids
Floral chemistry is hypothesized to be the product of natural selection, but researchers have just begun to consider the micro-evolution of these traits.
Cytogeography of Cystopetris fragilis complex
The widely distributed Cystopteris fragilis brittle bladder-fern, complex is a challenging system for studying polyploid evolution, cytotype diversity, distribution and ecology. Hanušová et al. screen cytotypes over the...
Sexuality and apomixis in Hieracium are tightly associated with ploidy
Asexual reproduction via seeds (apomixis) is an important speciation mechanism in angiosperms, but its frequency is largely unknown. Mráz and Zdvořák used flow cytometric seed screening to unravel reproductive pathways...
Establishing the cell biology of apomixis in Boechera
The genus Boechera (Brassicaceae) is comprised of both sexual and apomictic species, permitting comparative analyses of meiotic disturbances and parthenogenesis. Hybridization, polyploidy and environmental adaptation...
Retrotransposons in holocentric chromosomes of Eleocharis with different ploidy levels
Long terminal repeat-retrotransposons (LTR-RTs) comprise a large portion of plant genomes, with massive repeat blocks distributed across the chromosomes. Eleocharis (Cyperaceae) species have holocentric chromosomes, and...
A reassessment of the genome size – invasiveness relationship in reed canary grass
The smaller a plant's genome, the more likely it is to be invasive? Or so it was thought but newer techniques are casting some doubt on the idea.
botanyone
Intraspecific trait variation provides ecological opportunity for polyploids
One of the features of some plants is they can be polyploid. Humans have a pair of chromosomes carrying our genetic information. Plants can vary between one or two chromosomes, known as haploid or diploid. However, they...
Colchicine application and reproductive fitness in Fabaceae
Unravelling the direct consequences of polyploidization to reveal its evolutionary significance and effects on reproductive fitness, Münzbergová studies diploid offspring of synthetic tetraploid mothers in Vicia cracca...
