Cadmium (Cd) tolerance seems to be a constitutive species-level trait in Arabidopsis halleri
sp. halleri. Therefore, an interspecific cross was made between A. halleri and its closest …

Segregating hybrids often exhibit phenotypes that are extreme or novel relative to the
parental lines. This phenomenon is referred to as transgressive segregation, and it provides …

East African cichlid fishes represent one of the most striking examples of rapid and
convergent evolutionary radiation among vertebrates. Models of ecological speciation would …

In contrast to the large amount of ecological information supporting the role of natural
selection as a main cause of population divergence and speciation, an understanding of the …

Quantitative trait loci (QTL) controlling phenotypic differences between cultivated sunflower
and its wild progenitor were investigated in an F3 mapping population. Composite interval …

Nonlinear wave propagation is ubiquitous in nature, appearing in chemical reaction kinetics,
cardiac tissue dynamics,, cortical spreading depression and slow wave sleep. The …

Morphology evolves often through changes in developmental genes, but the causal
mutations, and their effects, remain largely unknown. The evolution of naked cuticle on …

The genetic basis of species differences provides insight into the mode and tempo of
phenotypic divergence. We investigate the genetic basis of floral differences between two …

Many physiological traits consist of two hierarchically related levels: physical structures and
the emergent functional properties of those structures. Because selection tends to act on the …

Polygenic adaptation occurs when natural selection changes the average value of a
complex trait in a population, via small shifts in allele frequencies at many loci. Here …