Isolation and characterization of polymorphic microsatellites in the threatened catfish Jaú, Zungaro jahu (Siluriformes, Pimelodidae)

This paper describes eight polymorphic microsatellite loci of the large migratory catfish Jaú, Zungaro jahu, a threatened species in the Paraguay—Paraná River Basin, which includes the Brazilian wetland Pantanal system. The number of detected alleles varied from 3 to 10, while observed and expected heterozygosity values ranged from 0.3182 to 0.8333 and 0.3298 to 0.8652, respectively. Cross-amplification on five related species was successfully evaluated. These isolated markers demonstrated to be very useful for population studies of this fish and related species, consisting in important tools for evaluations related to the management and conservation of the native populations.