【摘 要】
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We tested how the genetic similarity and quality criteria in scent signals interact in mate choice in rats.We used two inbred strains of rats,Brown Norway (BB)
【机 构】
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StateKeyLaboratoryofIntegratedManagementofPestInsectsandRodentsinAgriculture,InstituteofZoology,Chin
【出 处】
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The 5th International Conference on Rodent Biology and Manag
论文部分内容阅读
We tested how the genetic similarity and quality criteria in scent signals interact in mate choice in rats.We used two inbred strains of rats,Brown Norway (BB) and Lewis (LL) and their F1 reciprocal hybrids (BL,BB♀×LL♂; LB,LL♀×BB♂) as genetic models.We found that LL females exhibited incestuous preferences for male urine odour of LL rats over that of the BB strain and the F1 hybrids.Seven ketone components of major urine volatiles proved to be potential male pheromones and were enriched in LL males compared to BB males or the F1 hybrid males.These ketones produced an exaggerated male trait that attracts LL females,overriding compatibility traits.Additionally,in the genetically diverse F2 hybrids (BL♀×BL♂) ,the pheromones-enhanced males could consistently attract the F2 females.We suggest that the exaggerated male pheromones attract females,independent of genetic compatibility.
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