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Genome-wide SNPs reveal complex patterns of introgressive hybridization between Carcharhinus tilstoni and Carcharhinus limbatus blacktip sharks.

Maes, G.E., Argueta, I., Morgan, J. A.T., Simpfendorfer, C. A. and Ovenden, J. R. (2017) Genome-wide SNPs reveal complex patterns of introgressive hybridization between Carcharhinus tilstoni and Carcharhinus limbatus blacktip sharks. In: 7th World Fisheries Congress in Korea, 2016.

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Abstract

The objectives of this study were (1) to develop novel genome-wide nuclear markers using a Reduced Representation Genotyping by Sequencing approach (RRGS) to evaluate the level of admixture between the sympatric populations of C. tilstoni and C. limbatus of the eastern coast of Australia; (2) to identify a minimum number of diagnostic single nucleotide polymorphisms (SNPs) with maximum power to delineate the hybrid classes present between the two blacktip species for application in fisheries enforcement and forensic cases; (3) to compare the power and resolution that diagnostic markers provide for hybrid class delineation with previous results that used mtDNA, microsatellite markers and pre-caudal vertebrae count discordance.

Item Type:Conference or Workshop Item (Paper)
Business groups:Animal Science
Additional Information:Supplementary Material S8 in Bernatchez L., Wellenreuther M., Araneda C., Ashton D., Barth J., Beacham T. D., Maes G. E., Martinsohn J. T., Miller K. M., Naish K., Ovenden J. R., Primmer C. R., Ho Y. S., Therkildsen N. O., Withler R. E. (2017) Harnessing the power of genomics to secure the future of seafood. Trends in Ecology & Evolution 32, 665-680. This paper was presented as part of an invited session entitled ‘Genomics for improved fisheries management and conservation: have the promises been fulfilled?’ at the 7th World Fisheries Congress in Korea in 2016 which was sponsored by the OECD Co-operative Research Programme on Biological Resource Management for Sustainable Agricultural Systems, whose financial support made it possible for the invited speakers to participate in the Special Session.
Keywords:Population Genomics, Adaptation, Hybridisation, Fisheries, Simulations
Subjects:Science > Statistics > Simulation modelling
Science > Biology > Genetics
Aquaculture and Fisheries > Fisheries > Fishery conservation
Aquaculture and Fisheries > Fisheries > Fishery research
Deposited On:02 Nov 2020 03:31
Last Modified:02 Nov 2020 03:31

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