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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2008-1-23
pubmed:abstractText
Aggressive and mating behaviors were assessed in XX females, XY females, and XY males of the C57BL/6/J/Ei ("C57BL/6" or "B6") strain of mouse. The Y chromosome of the XY females derives from Mus domesticus poschiavinus and the Y chromosome of the XY males derives from Mus musculus. The poschiavinus Y in the C57BL/6 background results in XY mice with either ovaries or ovotestes. Only those with ovaries were tested. These XY females appear to be endocrinologically identical to XX females. Aggressive and mating behaviors were also tested in XX males and XY males of the FVB/NtacfBR Odsex ("FVB") strain of mouse. The XX males have a transgene inserted 1 Mb upstream of the SOX9 gene, resulting in gonadal differentiation as a testis in the absence of a Y chromosome. C57BL/6 mice were tested for aggression in an instigated resident intruder paradigm and FVB/NtacfBR Odsex mice were tested for aggression in a neutral cage paradigm. Mice of both strains were tested with opponents of the same sex chromosome complement and gonadal sex. On the C57BL/6 background, the XY males were more aggressive than the XY and XX females, but there was no significant difference between the XX and XY females in aggression. On the FVB background, the XY and XX males were equally aggressive. Mice from both C57BL/6 and FVB backgrounds were tested for mating behaviors with females in hormonal estrus. On the C57BL/6 background, the XY males mounted more than the XY females, but there was no significant difference between the XY and XX females in mounting. On the FVB background, mounting, intromissions, and ejaculations were the same in XY and XX males. The implications of these findings for the effect of sex chromosome complement on sex differences in aggression and mating in mice are discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0004-0002
pubmed:author
pubmed:issnType
Print
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2-8
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Aggressive and mating behaviors in two types of sex reversed mice: XY females and XX males.
pubmed:affiliation
Biobehavioral Sciences Graduate Degree Program, Department of Psychology, University of Connecticut, Storrs, CT 06269, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't