Reproduction Abstracts

Introduction: Sex determination is an essential process for the production of dimorphic gametes, sperms and eggs. The sex determination genes in gonadal somatic cells have been well studied, but nothing is known about the mechanism of germline sex determination in vertebrates. We have tackled a totally unaddressed issue using medaka.Materials and methods: Using transgenic medaka in which germ cells were labeled with EGFP, three different types of germ ce...