Figure 2From: Midkine-A functions upstream of Id2a to regulate cell cycle kinetics in the developing vertebrate retinaLoss of Mdka function does not affect neurogenic competence or increase cell death. (A) In situ hybridizations showing atoh7 expression in the retinas of uninjected (a-c), control (d-f) and Mdka loss-of-function embryos (g-i). Arrows in panels a, d and g identify the initial cluster of atoh7-expressing cells in ventral retina. MM, embryos injected with 5-nucleotide mismatch morpholinos; MO, embryos injected with mdka-targeted morpholinos; UI, uninjected. Scale bar equals 50μm. (B) Average number of acridine orange-stained cells in the retinas of control and experimental embryos showing that loss of Mdka does not increase cell death. P >0.05 for all pairwise comparisons. n=5 to 7 embryos/time point. Scale bar equals 50 μm.Back to article page