ISSN:
1573-3297
Keywords:
Y-chromosome
;
intermale aggression
;
inbred mice
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Psychology
Notes:
Abstract Differences in intermale aggression have been repeatedly reported for DBA/1 and C57BL/10 mice. The results of reciprocal crosses combined with cross-fostering procedures suggest an involvement of the Y chromosome. In the present study, the length of the Y chromosome relative to that of chromosome 19 was ascertained in five sublines of DBA/1Bg, three sublines of C57BL/10Bg, and a C57BL/10.DBA/1-Y congenic stock of mice, which carries the DBA/1Bg Y chromosome. With respect to the length of the Y chromosome relative to that of chromosome 19, two of the DBA/1 sublines are shorter than the other three DBA/1 sublines, and all DBA/1 sublines are shorter than the three C57BL/10 sublines. This is attributable primarily to the length of the Y chromosome. The C57BL/10 sublines and the BL10.D1-Y congenic stock tested exhibit the same relative lengths of the Y chromosome, suggesting that its length has changed on the C57BL/10 genetic background. There is a parallel dependence on autosomal background of the effect of the Y chromosome on intermale aggression.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01070817
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