Article
First evidence of polyandry for amazonian stingray (Potamotrygon wallacei Carvalho, Rosa & Araújo 2016) based on genome-wide SNP data.
Molecular biology reports - 20 Mar 2026
da Silva Larissa Emily Santos, Bittencourt Pedro Senna Taylor, de Lima Muniz Fábio, Duncan Wallice Luiz Paxiúba, Hrbek Tomas, Farias Izeni Pires
Abstract excerpt
BACKGROUND: The Amazonian freshwater stingray Potamotrygon wallacei, endemic to the Rio Negro basin, although heavily exploited in ornamental fish trade, is largely neglected in terms of basic biology, including its reproductive system. Polyandry is a widespread reproductive strategy in elasmobranchs, however, evidence from freshwater potamotrygonids is scarce. To address this knowledge gap, the present study...
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