Identification of a novel sex determining chromosome in cichlid fishes that acts as XY or ZW in different lineages
Almost all mammals (including humans) share the same sex chromosomes, whereby individuals with a Y chromosome are male (XY) and individuals with two X chromosomes (XX) are female. Male elephants, cats and men all have a very similar Y chromosome that evolved in their common ancestor 180 million years ago. In fishes, sex determination is … More Identification of a novel sex determining chromosome in cichlid fishes that acts as XY or ZW in different lineages