Female house mice avoid fertilization by t haplotype incompatible males in a mate choice experiment.
Bottom Line: This approach enabled us to analyse female behaviour during the testing period, and the resulting paternity success and fitness consequences of a given choice.We show that genetic incompatibilities arising from the t haplotype had severe indirect fitness consequences and t females avoided fertilization by t incompatible males.The results are inconclusive whether this avoidance of t fertilization by t females was caused by pre- or post-copulatory processes.
Affiliation: Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland.Show MeSH
Mentions: The software recording of female behaviour was available for 71 choice tests, of which data from 36 tests had to be discarded due to technical problems in the recording of the data (Table 1). For the remaining 35 tests, a total 6 414 744 log entries accumulated. Females visited either male cage on average 84.4 ± 44.8 (mean ± SD) times per day. Average visit duration was 9.52 ± 9.48 min. They spent 37.27 ± 17.14% of their time in a male's cage (see also Figure S1). Figure 4a shows behavioural preferences for the t male for t and w females. According to the linear mixed effects model using a logit-transformation, the 95% confidence bands of did not fall outside the no choice predictions (Bi = 0.5) both in t females (95% CI: [0.10, 0.64]) and w females (95% CI: [0.16, 0.75]).
Affiliation: Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland.