A-B’. Representative pictures of WISH performed on DMSO (A-B) and BME [30 μM] (A’-B’) treated vhl+/- incross derived larvae, at 5 dpf, using ldha as probe. DMSO treated vhl siblings showed basal ldha expression (34/35 larvae), which showed to be upregulated after BME treatment (33/35 larvae). On the other hand, DMSO treated vhl-/- showed upregulated ldha expression (32/35 larvae), which was further upregulated after BME treatment (34/35 larvae). (black arrowhead: head and liver) Chi-square test (****P < 0.0001). Scale bar 200 μm. C-D’. Representative pictures of WISH performed on DMSO (C-D) and BME [30 μM] (C’-D’) treated vhl+/- incross derived larvae, at 5 dpf, using phd3 (egln3) as probe. As expected, vhl siblings DMSO treated (n = 30/30 larvae) showed basal phd3 expression, which was mildly increased after BME treatment (n = 27/30 larvae). Vhl-/- DMSO treated (n = 28/30 larvae) showed upregulated phd3 expression, which was further increased after BME treatment (n = 26/30 larvae). (black arrowhead: head and liver) Chi-square test (****P < 0.0001). Scale bar 200 μm.