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jezb22572-sm-0001-SupFig-S1.tif4009KFigure S1. Control experiments for BrdU labeling. A: 4 dpo specimen without BrdU treatment, but subjected to the full staining protocol. B: BrdU-treated specimen (4–6 dpo) stained without primary antibody. All specimens in both samples (n = 10 each) appear the same with noticeable background colouration when stained for long enough, but no specific nuclear staining. Dorsal views; scale bars are approximately 0.5 mm.

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