Fig. 6.

Lineage tracing of β-gal labelled clones induced at different ages.

β-gal-stained corneas from mice that were injected with tamoxifen 3 times at 4 (A–D), 12 (E–H) or 24 (I–L) weeks of age and chased for 6 or 12 weeks. Front and side views are shown of the same eyes. (Eyes E–H are part of the series illustrated in Fig. 2.) Scale bar, 0.5 mm.