A large group of flowering plants, commonly known as Orchids, often have flowers whose shape coincides with that of their insect pollinators. Recent research has shown how this uncanny flower morphology is guided by evolutionary selection.
Salt tolerance is a critical stress response in many plants and is controlled by a wide variety of interacting genes. Researchers studying sodium transporters in trees from high-salinity environments have characterized the evolution of these genes and determined that they are under strong positive selection in salty soils.
Peroxiredoxins are proteins conserved across all domains of life that protect cells against the threat of reactive oxygen species. Researchers have recently characterized the evolutionary history of an essential peroxiredoxin gene from a common livestock pathogen.
Pathogenic bacteria are evolving resistance to our antibiotics at an alarming rate, however, scientists have recently discovered a molecule that may help combat these microscopic killers.
Researchers have measured decreased flight-to-light responses in moths from urban areas with historically high light pollution. This direct example of Darwinian selection could be hurting the ecological role of moths as pollinators and food sources.