More than one hundred years ago, JBS Haldane noted that in a cross between two species, if one of the sexes is absent, rare or sterile, the affected sex is heterogametic. The underlying genetic causes ...

Reproductive isolation in Drosophila involves a suite of genetic mechanisms that operate at sequential stages to prevent gene flow and facilitate speciation. Premating barriers arise through ...

Reproductive isolation is a biological process that prevents gene flow between populations or species, thereby maintaining or promoting genetic divergence and speciation. It operates through ...