Sexual reproduction is prevalent across diverse taxa. However, sex-determination
mechanisms are so diverse that even closely related species often differ in sex …

To date, more than 20 different vertebrate master sex-determining genes have been
identified on different sex chromosomes of mammals, birds, frogs and fish. Interestingly, six …

Many organisms have sex chromosomes with large nonrecombining regions that have
expanded stepwise, generating “evolutionary strata” of differentiation. The reasons for this …

Current theory proposes that degenerated sex chromosomes—such as the mammalian Y—
evolve through three steps:(i) recombination arrest, linking male-beneficial alleles to the Y …

Converging lines of inquiry from across the social and biological sciences target the adult
sex ratio (ASR; the proportion of males in the adult population) as a fundamental population …

The canonical model of sex-chromosome evolution predicts that, as recombination is
suppressed along sex chromosomes, gametologs will progressively differentiate, eventually …

Although sex is a fundamental component of eukaryotic reproduction, the genetic systems
that control sex determination are highly variable. In many organisms the presence of sex …

In many eukaryotes, genetic sex determination is not governed by XX/XY or ZW/ZZ systems
but by a specialized region on the poorly studied U (female) or V (male) sex chromosomes …

Sex differences in overall recombination rates are well known, but little theoretical or
empirical attention has been given to how and why sexes differ in their recombination …

Sexual reproduction and meiotic sex are deeply rooted in the eukaryotic tree of life, but
mechanisms determining sex or mating types are extremely varied and are only well …