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