annals-of-botany
In plants that produce both closed, obligatory self-pollinated (cleistogamous) and open, potentially out-crossed (chasmogamous) flowers, suboptimal conditions typically favour production of cleistogamous flowers. Munguía-
annals-of-botany
Grevillea rhizomatosa is a spreading shrub that exhibits multiple breeding strategies including self-compatibility, self-incompatibility and clonality (with and without sterility).Gross et al. compare
annals-of-botany
Anagenesis (also known as phyletic speciation), in which initial founder populations simply diverge through time without a branching event, is an important process of speciation in
annals-of-botany
The growth of plant cells is generally related to loosening of the cell wall, which allows cell expansion driven by osmotic water uptake. Dvorakova et al.
annals-of-botany
Although natural hybridization in the genus Narcissus (daffodils) is not infrequent, that between phylogenetically distant species differing in basic chromosome number involves significant genome changes. Using
annals-of-botany
The cucumber, Cucumis sativus, is native to the Indian subcontinent. No evidence has been found for its presence in Europe during Roman times but cucumber does
annals-of-botany
Biological invasions are a major ecological and socio-economic problem in many parts of the world. Te Beest et al. synthesize current knowledge on the importance
annals-of-botany
Population differentiation in a variable environment is related to the selection pressures that plants experience. Ward et al. compare differences in growth- and defence-related traits
annals-of-botany
Assessments of the phylogeny of the green algal class Chlorophyceae using standard, single markers, such as 18S rRNA and rbcL, have generally been unable to match
annals-of-botany
Subfamily Hyacinthoideae (Hyacinthaceae) comprises more than 400 species, which show distjunct distribution patterns. Ali et al. use dispersal-vicariance and Bayesian binary MCMC analyses to determine
annals-of-botany
Reproduction imposes a cost as resources are diverted from other functions within the plant. Ida et al. use both defoliation and shading to reduce photosynthate supply
annals-of-botany
In distylous plant species, skewed morph ratios are not uncommon and may arise from a range of factors such as demographic stochasticity and leakage of the