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Experiment details for irx1Evidence for an amphibian sixth digit.
Evidence for an amphibian sixth digit.
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|Figure S3. irx1 expression specific for digit condensation of the X. tropicalis hindlimb bud. A, sox9 expression at stage 53. Precartilaginous condensation, including the first visible condensation of digit IV, was detectable. B, irx1 expression at stage 53. irx1 was exclusively expressed in the digit condensation of digit IV at this stage, and other cartilaginous regions were irx1-negative, indicating that irx1 expression is specific for developing digits. Scale bar: 200 μm.|