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Fig. 4
dlx5a and mmp9 are necessary for correct joint placement.
(A) Segment length is increased following targeted gene knockdown of dlx5a and mmp9 compared with standard control (std) morpholino knockdown (negative control). (B) Segment length is increased in dlx5a-knockdown and mmp9-knockdown fins compared with standard control morpholino. Statistically different data sets (*) were determined by the student’s t-test where p<0.05. The p-value for the comparison of segment length for the dlx5a-treated fins was p = 0.0047. The p-value for the comparison of segment length for the mmp9-treated fins was p = 0.0018. Error bars represent the standard deviation. MO, morpholino.