Sex determination: primitive Y chromosomes in fish.
Recent analyses of the chromosomal regions that determine male development in sticklebacks and medaka have revealed several features associated with incipient Y chromosome evolution, including suppressed crossing over and the accumulation of repetitive DNA.
Charlesworth
Brian
B
Institute for Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3JT, UK. Brian.Charlesworth@ed.ac.uk
D000818:Animals; D003434:Crossing Over, Genetic / Q000235:genetics; D019143:Evolution, Molecular; D014644:Genetic Variation; D009990:Oryzias / Q000235:genetics*; D019849:Sex Determination Processes; D023701:Smegmamorpha / Q000235:genetics*; D014998:Y Chromosome / Q000235:genetics*