ISSN:
1573-3297
Keywords:
directional dominance
;
heterosis
;
mouse
;
Mus musculus
;
ultrasonic vocalizing
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Psychology
Notes:
Abstract Four sets of adult mice (Mus musculus), each comprised of individuals from two inbred strains and both reciprocal F1 crosses, were tested during male-female and female-female dyadic encounters for their emission of 70-kHz ultrasonic vocalizations. For each sex-dyad type of each set, a single progeny mean representing both reciprocal F1 groups was calculated and compared to (1) the average value from the inbred parents and (2) the higher mean of the within-set progenitor inbred strains. In addition to demonstrating strain-and sex-influenced ultrasonic vocalizing levels, the results indicated that for each set examined, the F1-progeny mean amount of ultrasonic vocalizing significantly exceeded the average inbred parent value. This was true for both dyad types, providing strong evidence that ultrasonic vocalizing displlays a directional dominance mode of inheritance in both female and male mice. Moreover, for female-female dyads of all four sets and for male-female dyads of three of four sets, the F1-progeny mean amount of ultrasonic vocalizing significantly exceeded that of the highest progenitor inbred strain. Analyses of ultrasonic vocalizing latencies yielded similar hybrid-inbred differences. Collectively, these findings are interpreted as being consistent with the notion that, for both sexes of mice, ultrasonic vocalizing is a phenotypically heterotic behavioral trait.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01074267
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