Concepts

Natural selection on floral traits that occurs through differential pollinator visitation and resulting differences in reproductive success

The formation of new species involves divergence of phenotypes and development of reproductive isolation, where initial divergence results from divergent natural selection and reproductive isolation a...

Interbreeding between taxa that alters the pool of genetic variation available for population responses to changing environments

Reduced fitness in F2 hybrids compared to F1 hybrids, often attributed to genetic incompatibilities between nuclear genes

Crosses between two species where each species serves as both maternal and paternal parent, allowing study of cytoplasmic inheritance effects