Two separated nucleolus organizers on the Drosophila hydei Y chromosome.
By genetical, cytological, and filter saturation hybridization methods it is shown that the Y chromosome of Drosophila hydei contains two separate nucleolus organizers, one on the short arm, the second near the tip of the long arm.
D002466:Cell Nucleolus; D002874:Chromosome Mapping; D004330:Drosophila; D012730:Sex Chromosomes