Studies in diverse biological systems have indicated that host–parasite co-evolution is
responsible for the extraordinary genetic diversity seen in some genomic regions, such as …

Social insects have the highest rates of meiotic recombination among Metazoa, but there is
considerable variation within the Hymenoptera. We synthesize the literature to investigate …

Selection acts upon genes linked together on chromosomes. This physical connection
reduces the efficiency by which selection can act because, in the absence of sex, alleles …

While linkage disequilibrium (LD) is an important parameter in genetics and evolutionary
biology, the drivers of LD remain elusive. Using whole-genome sequences from across a …

Biparental sex is widespread in nature, yet costly relative to uniparental reproduction. It is
generally unclear why self-fertilizing or asexual lineages do not readily invade outcrossing …

Natural populations often experience environments that vary across space and over time,
leading to spatio-temporal variation of the fitness of a genotype. If local conditions are poor …

While sexual reproduction is widespread among many taxa, asexual lineages have
repeatedly evolved from sexual ancestors. Despite extensive research on the evolution of …

Major hypotheses on sex evolution predict that resource abundance and heterogeneity
should either select for or against sexual reproduction. However, seldom have these …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has accumulated genomic
mutations at an approximately linear rate since it first infected human populations in late …

Mammalian sex chromosomes evolved from a homologous pair of autosomes via the
acquisition of a major sex determining gene. This event led to the suppression of …