10.5061/DRYAD.PJ5SF05
Loo, Jacqueline
University of Western Australia
Kennington, Winn Jason
University of Western Australia
de Lestang, Simon
University of Western Australia
How, Jason
Western Australian Fisheries and Marine Research Laboratories; North
Beach WA Australia
Evans, Jonathan P.
University of Western Australia
Data from: High levels of polyandry, but limited evidence for multiple
paternity, in wild populations of the western rock lobster (Panulirus
cygnus)
Dryad
dataset
2019
Panulirus cygnus)
Panulirus cygnus
polyandry
multiple mating
2019-02-14T00:00:00Z
2019-02-14T00:00:00Z
en
https://doi.org/10.1002/ece3.3985
199338 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Polyandry, where multiple mating by females results in the temporal and
spatial overlap of ejaculates from two or more males, is taxonomically
widespread and occurs in varying frequencies within and among species. In
decapods (crabs, lobsters, crayfish and prawns), rates of polyandry are
likely to be variable, but the extent to which patterns of multiple
paternity reflect multiple mating, and thus are shaped by post-mating
processes that bias fertilization towards one or a subset of mated males,
is unclear. Here, we use microsatellite markers to examine the frequency
of multiple mating (presence of spermatophores from two or more males) and
patterns of paternity in wild populations of western rock lobster
(Panulirus cygnus). Our data confirm that >45% of females had
attached spermatophores arising from at least two males (i.e. confirming
polyandry), but we found very limited evidence for multiple paternity;
among 24 clutches sampled in this study, only two arose from
fertilisations by two or more males. Single inferred paternal genotypes
accounted for all remaining progeny genotypes in each clutch, including
several instances when the mother had been shown to mate with two or more
males. These findings highlight the need for further work to understand
whether polyandry is adaptive and to uncover the mechanisms underlying
post-mating paternity biases in this system.
Microsatellite dataData file with male, female and clutch genotypes.DATA
FILE FOR ARCHIVE Genotypes_WRL_FINAL_.xlsx
Western Australia
Rottnest Island