Comparing the genomes of modern pathogens with those of cryopreserved strains from several decades ago shed light on the evolution of coffee wilt disease outbreaks in Africa.
Evidence is mounting that epigenetic marks on DNA can influence future generations in a variety of ways. But how such phenomena might affect large-scale evolutionary processes is hotly debated.
A study employing CRISPR/Cas9 to explore the evolutionary beginnings of some giant viruses finds evidence their large genomes arose from gene duplications.