Paternal imprinting of mating preferences between natural populations of house mice (Mus musculus domesticus).
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Output type: Journal article
Author list: Montero, Teschke, Tautz
Publisher: Wiley
Publication year: 2013
Volume number: 22
Issue number: 9
Start page: 2549
End page: 62
Number of pages: -2486
ISSN: 0962-1083
eISSN: 1365-294X
Languages: English-Great Britain (EN-GB)
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Open access status: closed
Abstract
The evolutionary divergence of cues for mate recognition can contribute to early stages of population separation. We compare here two allopatric populations of house mice (Mus musculus domesticus) that have become separated about 3000 years ago. We have used paternity assignments in semi-natural environments to study the degree of mutual mate recognition according to population origin under conditions of free choice and overlapping generations. Our results provide insights into the divergence of mating cues, but also for the mating system of house mice. We find frequent multiple mating, occurrence of inbreeding and formation of extended family groups. In addition, many animals show strong mate fidelity, that is, frequent choice of the same mating partners in successive breeding cycles, indicating a role for familiarity in mating preference. With respect to population divergence, we find evidence for assortative mating, but only under conditions where the animals had time to familiarize themselves with mating partners from their own population. Most interestingly, the first-generation offspring born in the enclosure showed a specific mating pattern. Although matings between animals of hybrid population origin with animals of pure population origin should have occurred with equal frequency with respect to matching the paternal or maternal origin, paternal matching with mates from their own populations occurred much more often. Our findings suggest that paternally imprinted cues play a role in mate recognition between mice and that the cues evolve fast, such that animals of populations that are separated since not more than 3000 years can differentially recognize them.
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