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 …

Sex determination is one of the most rapidly evolving developmental pathways, but the
factors responsible for this fast evolution are not well resolved. The house fly, Musca …

The extraordinary diversity of sex-determining mechanisms found in nature is thought to
have arisen by the addition, modification or replacement of regulators at the upstream end of …

Segregation distorters are alleles that distort normal segregation in their own favour. Sex
chromosomal distorters lead to biased sex ratios, and the presence of such distorters …

Evolutionary transitions between male and female heterogamety are common in both
vertebrates and invertebrates. Theoretical studies of these transitions have found that, when …

Houseflies provide a good experimental model to study the initial evolutionary stages of a
primary sex-determining locus because they possess different recently evolved proto-Y …

Adult sex ratio determines the level of mate availability and intrasexual competition for each
sex. Sex ratio biases have been proposed to enhance the productivity of animal rearing …

The diversity and patchy phylogenetic distribution of genetic sex-determining mechanisms
observed in some taxa is thought to have arisen by the addition, modification, or …

Sex determination pathways evolve rapidly, usually because of turnover of master regulatory
genes at the top of the developmental pathway. Polygenic sex determination is expected to …

Sex determination evolves rapidly, often because of turnover of the genes at the top of the
pathway. The house fly, Musca domestica, has a multifactorial sex determination system …