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Fig. 4. Expression of Xlens1 and Foxe3 during lens formation
in Xenopus and mouse. (A) Anterior view of Xlens1
expression in the U-shaped region of Xenopus neurula (our unpublished
observation). (B) Expression of Xlens1 in the lens placodes of
a Xenopus tadpole (Kenyon et al.,
1999). (C) The earliest expression of Foxe3 in the
lens placode of an E9.0 mouse embryos (arrow). Reproduced with permission from
Blixt et al. (Blixt et al.,
2000). (D) Expression of Foxe3 in an E12 mouse
embryo. Reproduced with permission from Brownell et al.
(Brownell et al., 2000).