In the intimacy of the darkness: Genetic polyandry in deep‐sea luminescent lanternsharks Etmopterus spinax and Etmopterus molleri (Squaliformes, Etmopteridae) - Université de La Réunion
Article Dans Une Revue Journal of Fish Biology Année : 2020

In the intimacy of the darkness: Genetic polyandry in deep‐sea luminescent lanternsharks Etmopterus spinax and Etmopterus molleri (Squaliformes, Etmopteridae)

Résumé

Multiple paternity seems common within elasmobranchs. Focusing on two deep-sea shark species, the velvet belly lanternshark (Etmopterus spinax) and the slendertail lanternshark (Etmopterus molleri) we inferred the paternity in 31 E. spinax litters from Norway (three to 18 embryos per litter) and six E. molleri litters from Japan (three to six embryos), using 21 and 10 specific microsatellites, respectively. At least two E. spinax litters were sired from multiple fathers each, with highly variable paternal skew (1:1 to 9:1). Conversely, no clear signal of genetic polyandry was found in E. molleri.
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Dates et versions

hal-03276742 , version 1 (02-07-2021)

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Laurent Duchatelet, Nicolas Oury, Jérôme Mallefet, Hélène Magalon. In the intimacy of the darkness: Genetic polyandry in deep‐sea luminescent lanternsharks Etmopterus spinax and Etmopterus molleri (Squaliformes, Etmopteridae). Journal of Fish Biology, 2020, 96 (6), pp.1523-1529. ⟨10.1111/jfb.14336⟩. ⟨hal-03276742⟩
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