𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Genetic basis for male aggression and survivorship in wild house mice (Mus domesticus)

✍ Scribed by Sarah Lenington; Lee C. Drickamer; Ami Sessions Robinson; Mark Erhart

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
700 KB
Volume
22
Category
Article
ISSN
0096-140X

No coin nor oath required. For personal study only.

✦ Synopsis

Work on the genetic region of the house mice known as the t-complex has produced the hypothesis that mice heterozygous for t-haplotypes (+/t) may have a selective advantage over wild-type (+/+) males owing to the greater aggressiveness of +/t males. We tested this hypothesis by examining the behavior of +/+ and +/t mice placed in four large outdoor enclosures. We found that +/t males were dominant over +/+ males. Furthermore, in the outdoor enclosures +/t males had higher survivorship than +/+ males, both as adults and juveniles. However, males of the two genotypes did not differ in home range size. We suggest that t-haplotypes may be, in part, maintained in mouse populations because of a selective advantage in heterozygous males. o 19% Wiiey-Liss, Inc.

πŸ“œ SIMILAR VOLUMES

Anogenital distance and dominance status
Anogenital distance and dominance status in male house mice (Mus domesticus)
✍ Lee C. Drickamer; Frederick S. Vom Saal; Lisa M. Marriner; Catherine A. Mossman πŸ“‚ Article πŸ“… 1995 πŸ› John Wiley and Sons 🌐 English βš– 650 KB

Factors influencing the tendency to be aggressive were investigated in male house mice using a series of paired encounters. Body size, body length, body temperature, age, and anogenital distance were measured on all males. Paired encounters were conducted using a standard mouse cage as an arena. Acr