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1 March 2007 MALE MATING SUCCESS DURING PARTURIAL INTERMOULTS IN THE TERRESTRIAL ISOPOD ARMADILLIDIUM VULGARE REVEALED BY THE USE OF A MICROSATELLITE LOCUS
Sébastien Verne, Jérôme Moreau, Yves Caubet, Didier Bouchon, Monique Johnson, Frédéric Grandjean
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Abstract

We investigated the value of microsatellite DNA markers to improve our knowledge of mating strategy with inference to sperm competition in particular, in the woodlouse Armadillidium vulgare. In terrestrial isopods, mature females develop a brood pouch or marsupium before egg laying, the pouch being formed by overlapping oöstegites during a special moult called parturial moult. Under laboratory conditions, we show that Armadillidium vulgare females are able to mate during parturial intermoults, even in the presence of a physical barrier such as that represented by the ventral marsupial plates. Our results reveal that the contribution of a second male mating with a female between two parturial moults could represent up to 50% of the paternal alleles in the brood (mean = 28% ± 15). This contrasts with data reported in the literature concerning closely related woodlice species, where males are suggested not to be able to mate with the female during the parturial intermoult period.

Sébastien Verne, Jérôme Moreau, Yves Caubet, Didier Bouchon, Monique Johnson, and Frédéric Grandjean "MALE MATING SUCCESS DURING PARTURIAL INTERMOULTS IN THE TERRESTRIAL ISOPOD ARMADILLIDIUM VULGARE REVEALED BY THE USE OF A MICROSATELLITE LOCUS," Journal of Crustacean Biology 27(2), 217-219, (1 March 2007). https://doi.org/10.1651/S-2752.1
Received: 23 April 2006; Accepted: 1 October 2006; Published: 1 March 2007
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