Homologous recombination in ES cells inserted a cre/ERT2-PGK-neo cassette into the Sox2 locus, generating a knockin allele that functionally is a null allele of Sox2. The frt-flanked neo marker was deleted by crossing animals with Tg(ACTFLPe)9205Dym mice. Lineage tracing in embryos from tamoxifen treated females of R26YFP and Sox2Cre/ERT2 intercrosses demonstrated labelled cells at P1 in tissues that normally express Sox2 (brain, eyes, ears, oral epithelia). (J:201265)
Legend:
cx: complex: > 1 genome feature ot: other: hemizygous, indeterminate,... (F): Female
(M): Male
N: normal phenotype
(#): related diseases count