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Amplification of marsupial SRY using RT–PCR and genomic PCR separated on a 1.5% agarose gel. Lanes: 1, Phi X-174/HaeIII marker; 2, M. eugenii genomic PCR; 3, M. eugenii RT–PCR; 4, S. macroura genomic PCR; 5, S. macroura RT–PCR; 6, Phi X-174/HaeIII marker.
