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Title: Multiple paternity in free-living root voles (Microtus oeconomus). Author: Borkowska A, Borowski Z, Krysiuk K. Journal: Behav Processes; 2009 Oct; 82(2):211-3. PubMed ID: 19482071. Abstract: We used 10 microsatellite loci to determine the mating system and male reproductive success in a natural population of the root vole (Microtus oeconomus). By genotyping 21 females and their 111 offspring (5.28+/-0.27 S.E. pups per female), we found evidence for multiple paternity in 38% of the litters sired by two or three males. Paternity was not significantly skewed away from the null expectation of equal proportions of offspring sired in any of the multiple-sired litters, and the most successful male fathered between 40% and 60% of the pups in a litter. The results indicate that promiscuity is a common mode of reproduction, consistent with the previous classification of the mating system based on the spatial structure of the root vole population.[Abstract] [Full Text] [Related] [New Search]