Figure 5From: Analysis of hypoxia-inducible factor alpha polyploidization reveals adaptation to Tibetan plateau in the evolution of schizothoracine fishTranscriptional activity of HIF-αs under normoxic and hypoxic conditions. Each HIF-1α and HIF-2α was found to upregulate luciferase activity under normoxia, and the luciferase activity of hif-1αB was high even under normoxia.Back to article page