title: The DBA/1Bg and DBA/2Bg Y chromosomes compared for their effects on male sexual behavior.
abstract: Mount, intromission, and ejaculation number and latency were measured in male mice of the DBA/1Bg, DBA/2Bg, and DBA/2.DBA/1-YBg congenic strains. The DBA/2 and DBA/2.DBA/1-Y congenic strains differ in the source of their Y chromosome. Fifty percent of the DBA/2 and 13 percent of the DBA/2.DBA/1-Y males mounted at least once in the test of male copulatory behavior. There were no other significant differences between these two congenic strains. This finding suggests that the Y chromosome has an effect on the proportion of mice that mount in this test.
mesh_terms: D000818:Animals; D003307:Copulation / Q000502:physiology; D005838:Genotype; D008297:Male; D051379:Mice; D008811:Mice, Inbred DBA; D011930:Reaction Time / Q000502:physiology; D012726:Sexual Behavior, Animal / Q000502:physiology*; D014998:Y Chromosome / Q000502:physiology*