The evolution of male-female sexual dimorphism predates the gender-based divergence of the mating locus gene MAT3/RB.

@article{Hiraide2013TheEO,
  title={The evolution of male-female sexual dimorphism predates the gender-based divergence of the mating locus gene MAT3/RB.},
  author={Rintaro Hiraide and Hiroko Kawai-Toyooka and Takashi Hamaji and Ryo Matsuzaki and Kaoru Kawafune and Jun Abe and Hiroyuki Sekimoto and James G Umen and Hisayoshi Nozaki},
  journal={Molecular biology and evolution},
  year={2013},
  volume={30 5},
  pages={1038-40}
}
The molecular bases for the evolution of male-female sexual dimorphism are possible to study in volvocine algae because they encompass the entire range of reproductive morphologies from isogamy to oogamy. In 1978, Charlesworth suggested the model of a gamete size gene becoming linked to the sex-determining or mating type locus (MT) as a mechanism for the… CONTINUE READING