Switch from sexual to parthenogenetic reproduction in a zebra shark

Dudgeon, Christine L., Coulton, Laura, Bone, Ren, Ovenden, Jennifer R. and Thomas, Severine (2017) Switch from sexual to parthenogenetic reproduction in a zebra shark. Scientific Reports, 7 40537. doi:10.1038/srep40537


Author Dudgeon, Christine L.
Coulton, Laura
Bone, Ren
Ovenden, Jennifer R.
Thomas, Severine
Title Switch from sexual to parthenogenetic reproduction in a zebra shark
Journal name Scientific Reports   Check publisher's open access policy
ISSN 2045-2322
Publication date 2017-01-16
Sub-type Article (original research)
DOI 10.1038/srep40537
Open Access Status DOI
Volume 7
Start page 40537
Total pages 6
Place of publication London, United Kingdom
Publisher Nature Publishing Group
Language eng
Abstract Parthenogenesis is a natural form of asexual reproduction in which embryos develop in the absence of fertilisation. Most commonly found in plants and invertebrate organisms, an increasing number of vertebrate species have recently been reported employing this reproductive strategy. Here we use DNA genotyping to report the first demonstration of an intra-individual switch from sexual to parthenogenetic reproduction in a shark species, the zebra shark Stegostoma fasciatum. A co-housed, sexually produced daughter zebra shark also commenced parthenogenetic reproduction at the onset of maturity without any prior mating. The demonstration of parthenogenesis in these two conspecific individuals with different sexual histories provides further support that elasmobranch fishes may flexibly adapt their reproductive strategy to environmental circumstances.
Formatted abstract
Parthenogenesis is a natural form of asexual reproduction in which embryos develop in the absence of fertilisation. Most commonly found in plants and invertebrate organisms, an increasing number of vertebrate species have recently been reported employing this reproductive strategy. Here we use DNA genotyping to report the first demonstration of an intra-individual switch from sexual to parthenogenetic reproduction in a shark species, the zebra shark Stegostoma fasciatum. A co-housed, sexually produced daughter zebra shark also commenced parthenogenetic reproduction at the onset of maturity without any prior mating. The demonstration of parthenogenesis in these two conspecific individuals with different sexual histories provides further support that elasmobranch fishes may flexibly adapt their reproductive strategy to environmental circumstances.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
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Created: Wed, 25 Jan 2017, 19:49:34 EST by Elisha Bignell on behalf of School of Biomedical Sciences