Animals have evolved a bewildering diversity of mechanisms to determine the two sexes.
Studies of sex determination genes–their history and function–in non‐model insects and …

The speciose insect order Lepidoptera (moths and butterflies) and their closest relatives,
Trichoptera (caddis flies), share a female-heterogametic sex chromosome system. Originally …

Sexual reproduction is a fundamental aspect of life. It is defined by the occurrence of meiosis
and the fusion of two gametes of different sexes or mating types. Sex-determination …

Haplodiploid organisms comprise about 20% of animals. Males develop from unfertilized
eggs while females are derived from fertilized eggs. The underlying mechanisms of sex …

The genetics of the sex determination regulatory cascade in Drosophila melanogaster has a
fascinating history, interlinked with the foundation of the Genetics discipline itself. The …

Sex determination in insects is characterized by a gene cascade that is conserved at the
bottom but contains diverse primary signals at the top. The bottom master switch gene …

In the tephritids Ceratitis capitata and Bactrocera oleae, the gene transformer acts as the
memory device for sex determination, via an auto-regulatory function; and functional Tra …

Male sexual behavior in the fruit fly Drosophila melanogaster is regulated by fruitless (fru), a
sex-determination gene specifying the synthesis of BTB-Zn finger proteins that likely function …

Caenorhabditis elegans has become one of the most widely used model research
organisms, yet we have little information on evolutionary processes and recent evolutionary …

Interspecific hybrid lethality and sterility are a consequence of divergent evolution between
species and serve to maintain the discrete identities of species. The evolution of hybrid …