Co-segregation of intermale aggression with the pseudoautosomal region of the Y chromosome in mice
Roubertoux, P.L.; Carlier, M.; Degrelle, H.; Haas-Dupertuis, M.C.; Phillips, J.; Moutier, R.
Genetics 136(1): 225-230
1994
ISSN/ISBN: 0016-6731 PMID: 8138160 Document Number: 435887
The sexual dimorphism of aggression has led to a search for its Y chromosomal correlates. We have previously confirmed that initiation of attack behavior against a conspecific male is Y-dependent in two strains of laboratory mice (NZB and CBA/H). We provide evidence that the non-pseudoautosomal region of the Y is not involved and that only the pseudoautosomal region of the Y is correlated with initiation of attack behavior. The autosomal correlates also contribute to this behavior in an additive or interactive manner with the pseudoautosomal correlates.