Lack of multiple paternity in the oceanodromous tiger shark (Galeocerdo cuvier)

Bonnie J Holmes; L C Pope; S M Williams; I R Tibbetts; M B Bennett; J R Ovenden

doi:10.1098/rsos.171385

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Lack of multiple paternity in the oceanodromous tiger shark (Galeocerdo cuvier)

Journal article

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Lack of multiple paternity in the oceanodromous tiger shark (Galeocerdo cuvier)

Bonnie J Holmes, L C Pope, S M Williams, I R Tibbetts, M B Bennett and J R Ovenden

Royal Society Open Science, Vol.5(1)

2018

DOI: https://doi.org/10.1098/rsos.171385

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Abstract

aplacental viviparity

elasmobranch

multiple paternity

polyandry

Multiple paternity has been documented as a reproductive strategy in both viviparous and ovoviviparous elasmobranchs, leading to the assumption that multiple mating may be ubiquitous in these fishes. However, with the majority of studies conducted on coastal and nearshore elasmobranchs that often form mating aggregations, parallel studies on pelagic, semi-solitary species are lacking. The tiger shark (Galeocerdo cuvier) is a large pelagic shark that has an aplacental viviparous reproductive mode which is unique among the carcharhinids. A total of 112 pups from four pregnant sharks were genotyped at nine microsatellite loci to assess the possibility of multiple paternity or polyandrous behaviour by female tiger sharks. Only a single pup provided evidence of possible multiple paternity, but with only seven of the nine loci amplifying for this individual, results were inconclusive. In summary, it appears that the tiger sharks sampled in this study were genetically monogamous. These findings may have implications for the genetic diversity and future sustainability of this population.

Details

Title: Lack of multiple paternity in the oceanodromous tiger shark (Galeocerdo cuvier)
Authors: Bonnie J Holmes (Author) - University of Queensland
L C Pope (Author) - University of Queensland
S M Williams (Author) - University of Queensland
I R Tibbetts (Author) - University of Queensland
M B Bennett (Author)
J R Ovenden (Author)
Publication details: Royal Society Open Science, Vol.5(1)
Publisher: Royal Society of Chemistry (R S C) Publications
Date published: 2018
DOI: 10.1098/rsos.171385
ISSN: 2054-5703
Copyright note: Copyright © 2018 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
Language: English
Record Identifier: 99450840002621
Output Type: Journal article

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