NDLI: Sexual selection and the rodent baculum: an intraspecific study in the house mouse (Mus musculus domesticus)

Content Provider	Springer Nature Link
Author	Ramm, Steven A. Khoo, Lin Stockley, Paula
Copyright Year	2009
Abstract	The rapid divergence of genitalia is a pervasive trend in animal evolution, thought to be due to the action of sexual selection. To test predictions from the sexual selection hypothesis, we here report data on the allometry, variation, plasticity and condition dependence of baculum morphology in the house mouse (Mus musculus domesticus). We find that that baculum size: (a) exhibits no consistent pattern of allometric scaling (baculum size being in most cases unrelated to body size), (b) exhibits low to moderate levels of phenotypic variation, (c) does not exhibit phenotypic plasticity in response to differences in perceived levels of sexual competition and (d) exhibits limited evidence of condition dependence. These patterns provide only limited evidence in support of the sexual selection hypothesis, and no consistent support for any particular sexual selection mechanism; however, more direct measures of how genital morphology influences male fertilization success are required.
Starting Page	129
Ending Page	137
Page Count	9
File Format	PDF
ISSN	00166707
Journal	Genetica
Volume Number	138
Issue Number	1
e-ISSN	15736857
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-07-14
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Allometry Baculum Condition dependence Genitalia Mus musculus domesticus Phenotypic plasticity Sexual selection Variation Microbial Genetics and Genomics Human Genetics Plant Genetics & Genomics Animal Genetics and Genomics Life Sciences
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Medicine Animal Science and Zoology Insect Science

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