The dominant and ancestral mode of sex determination in the Hymenoptera is
arrhenotokous parthenogenesis, in which diploid females develop from fertilized eggs and …

Recent evidence for genetic effects on royal and worker caste differentiation from diverse
social insect taxa has put an end to the view that these phenotypes stem solely from a …

Meiosis is a key event of sexual life cycles in eukaryotes. Its mechanistic details have been
uncovered in several model organisms, and most of its essential features have received …

Social insects are important models for social evolution and behavior. However, in many
species, experimental control over important factors that regulate division of labor, such as …

Female parthenogenesis, or thelytoky, is particularly common in solitary Hymenoptera. Only
more recently has it become clear that many eusocial species also regularly reproduce …

The persistence of sexual reproduction in the face of competition from asexual invaders is
more likely if asexual lineages are produced infrequently or have low fitness. The generation …

The sex-determining systems of arthropods are surprisingly diverse. Some species have
male or female heterogametic sex chromosomes while other species do not have sex …

Theory suggests that occasional or conditional sex involving facultative switching between
sexual and asexual reproduction is the optimal reproductive strategy. Therefore, the true …

Many parthenogenetically reproducing animals produce offspring not clonally but through
different mechanisms collectively referred to as automixis. Here, meiosis proceeds normally …

Unlike most desert-dwelling animals, Cataglyphis ants do not attempt to escape the heat;
rather, they apply their impressive heat tolerance to avoid competitors and predators. This …