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Occurrence of multiple sexual chromosomes (XX/XY1Y2 and Z1Z1Z2Z2/Z1Z2W1W2) in catfishes of the genus Ancistrus (Siluriformes: Loricariidae) from the Amazon basin

BiologyMorphological EvidencePhylogeneticsMolecular EcologyAmazon BasinGenus AncistrusGeneticsEvolutionary BiologyMedicineNatural SciencesMultiple Sexual ChromosomesGenetic VariationZoological TaxonomyPopulation Genetics