Abstract

The yellowfin tuna (Thunnus albacares )i s a warm water tuna of conservation concern related to recent declines in abundance reported in various parts of its range. In this work, 24 new microsatellites markers were devel- oped for this species using Illumina paired-end sequencing and a direct 'Seq-to-SSR' approach. The number of alleles per locus ranged from 4 to 29 and estimates of expected heterozygosity were from 0.473 to 0.948 (n = 35). Geno- type frequencies at 8 of the microsatellites departed sig- nificantly from Hardy-Weinberg expectations, possibly reflecting occurrence of null alleles. The remaining 16 loci will be valuable to conservation genetics studies of yel- lowfin tuna.

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