title: Analysis of intraspecific variation in venoms of Acanthophis antarcticus death adders from South Australia.
abstract: Intraspecific variation in venom composition and activity has been reported from a wide range of snakes. Geographical origin can be one cause for this variation and has recently been documented from Acanthophis antarcticus death adders sampled across four different Australian states. The present study examined whether a narrower sampling range of A. antarcticus from four collection sites within one Australian state (i.e., South Australia) would also exhibit variation in venom composition and/or activity. The present LC-MS results reveal marked differences in the venom composition from different collection sites. The most striking difference was the reduced venom complexity found in the only venom originating from a mallee scrub habitat in comparison to the venoms from coastal heath scrub habitats. Interestingly, the pharmacological activity of all venoms was found to be the same, independent of the collection site.
authors.affiliation: Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland 4072 Australia.
authors.forename: Volker
authors.initials: V
authors.lastname: Herzig
authors.forename: Maxie
authors.initials: M
authors.lastname: Kohler
authors.forename: Kai F
authors.initials: KF
authors.lastname: Grund
authors.forename: Shane
authors.initials: S
authors.lastname: Reeve
authors.forename: A Ian
authors.initials: AI
authors.lastname: Smith
authors.forename: Wayne C
authors.initials: WC
authors.lastname: Hodgson
keywords: Acanthophis antarcticus; Death adder; chick biventer cervicis nerve-muscle preparation; geographical and intraspecific variation; venom