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In the intimacy of the darkness: genetic polyandry in deep-sea luminescent lanternsharks Etmopterus spinax and Etmopterus molleri (Squaliformes, Etmopteridae)
Duchatelet, L.; Oury, N.; Mallefet, J.; Magalon, H. (2020). In the intimacy of the darkness: genetic polyandry in deep-sea luminescent lanternsharks Etmopterus spinax and Etmopterus molleri (Squaliformes, Etmopteridae). J. Fish Biol. 96(6): 1523-1529. https://hdl.handle.net/10.1111/jfb.14336
In: Journal of Fish Biology. Fisheries Society of the British Isles: London,New York,. ISSN 0022-1112; e-ISSN 1095-8649, meer
Peer reviewed article  

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Trefwoorden
    Etmopteridae Fowler, 1934 [WoRMS]; Etmopterus molleri (Whitley, 1939) [WoRMS]; Etmopterus spinax (Linnaeus, 1758) [WoRMS]
    Marien/Kust
Author keywords
    Etmopteridae; microsatellites; paternity test; polyandry; squaliformes

Auteurs  Top 
  • Duchatelet, L., meer
  • Oury, N.
  • Mallefet, J., meer
  • Magalon, H.

Abstract
    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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