title: Male prairie voles with different avpr1a microsatellite lengths do not differ in courtship behaviour.
abstract: Females are generally expected to be selective when choosing their social and sexual partners. In a previous laboratory study, female prairie voles (Microtus ochrogaster) showed significant social and sexual preferences for males with longer microsatellite DNA within the avpr1a gene encoding the vasopressin 1a receptor, as predicted if females select mates whose parental behaviour should increase female reproductive success. We tested the hypothesis that males with short versus long avpr1a microsatellite alleles exhibit differences in courtship behaviour, which could act as cues for female mate preference. The only behavioural difference we detected between males with short versus long avpr1a microsatellite alleles in mate preference trials was that males with short avpr1a microsatellite alleles sniffed the anogenital region of females more frequently during the first two days of the trials. Our results did not strongly support the hypothesis that a male's avpr1a genotype predicts the courtship behaviours we measured and suggests that other courtship behaviours or traits, such as odour and vocalizations, may be more important to female prairie voles when choosing mates. Additional studies using a wider array of species are needed to assess the degree to which male mammal courtship behaviour provides information on mate quality to females.
authors.affiliation: Department of Biology, Miami University, Hamilton, OH 45011, United States. Electronic address: grahamb4@miamioh.edu.
authors.forename: Brittney M
authors.initials: BM
authors.lastname: Graham
authors.affiliation: Department of Biology, Miami University, Oxford, OH 45056, United States.
authors.forename: Nancy G
authors.initials: NG
authors.lastname: Solomon
authors.affiliation: Department of Statistics, Miami University, Oxford, OH 45056, United States.
authors.forename: Douglas A
authors.initials: DA
authors.lastname: Noe
authors.affiliation: Department of Biology, Miami University, Hamilton, OH 45011, United States. Electronic address: kennel@miamioh.edu.
authors.forename: Brian
authors.initials: B
authors.lastname: Keane
mesh_terms: D000483:Alleles; D000818:Animals; D003411:Arvicolinae / Q000235:genetics* / Q000523:psychology*; D020029:Base Pairing / Q000235:genetics; D003380:Courtship; D005260:Female; D008297:Male; D018895:Microsatellite Repeats / Q000235:genetics*; D017483:Receptors, Vasopressin / Q000235:genetics*
chemical_list: D017483:Receptors, Vasopressin
keywords: Anogenital sniffing; Courtship behaviour; Mate choice; Rodents; Voles