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Multiple paternity in Littorina obtusata (Gastropoda, Littorinidae) revealed by microsatellite analyses
Paterson, I.G.; Patridge, V.; Buckland-Nicks, J. (2001). Multiple paternity in Littorina obtusata (Gastropoda, Littorinidae) revealed by microsatellite analyses. Biol. Bull. 200: 261-267
In: Biological Bulletin. Marine Biological Laboratory: Lancaster, Pa. etc.. ISSN 0006-3185, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Paterson, I.G.
  • Patridge, V.
  • Buckland-Nicks, J.

Abstract
    Parental identity for juvenile Littorina obtusata was determined from three egg masses by means of micro-satellite DNA markers. Results confirm that the attendant adult female in each case was the dam of the offspring and that at least 4-6 males contributed to each brood. This correlates with our behavioral observations that indicated multiple copulations between the female and several males in each experimental aquarium. A significant number of offspring from each brood were sired by non-sampled males (males that had copulated with females before capture) whose sperm had been stored by the female. This is the first direct evidence of multiple paternity in the Littorinidae. Results are discussed in reference to current theories of sperm competition, male precedence, and cryptic female choice.

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