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Gene Expression Data
Assay Details
Assay
Reference: J:106811 Johnson EB, et al., Abnormal development of the apical ectodermal ridge and polysyndactyly in Megf7-deficient mice. Hum Mol Genet. 2005 Nov 15;14(22):3523-38
Assay type: RNA in situ
MGI Accession ID: MGI:7712780
Gene symbol: Fgf8
Gene name: fibroblast growth factor 8
Probe: Fgf8 probe
Probe preparation: Antisense labelled with digoxigenin RNA
Visualized with: Alkaline phosphatase
Results
Specimen 5A WT: embryonic day 9.5 (more )
Note: Wild type was either +/+ or heterozygous.
Structure Level Pattern Image Note
TS15: forelimb bud presumptive apical ectodermal ridge Present 5A WT

Specimen 5A KO: embryonic day 9.5; Lrp4tm1Her/Lrp4tm1Her (more )
Structure Level Pattern Image Note
TS15: forelimb bud presumptive apical ectodermal ridge Present 5A KO
TS15: forelimb bud ectoderm Present Regionally restricted 5A KO There is diffuse expression over the entire distal end of the developing limb bud.

Specimen 5B Forelimb WT: embryonic day 10.5 (more )
Note: Wild type was either +/+ or heterozygous.
Structure Level Pattern Image Note
TS17: forelimb bud apical ectodermal ridge Present 5B F WT

Specimen 5B Hindlimb WT: embryonic day 10.5 (more )
Note: Wild type was either +/+ or heterozygous.
Structure Level Pattern Image Note
TS17: hindlimb bud apical ectodermal ridge Present 5B H WT

Specimen 5B Forelimb KO: embryonic day 10.5; Lrp4tm1Her/Lrp4tm1Her (more )
Structure Level Pattern Image Note
TS17: forelimb bud ectoderm Present Regionally restricted 5B F KO Expression is split into a dorsal and a ventral ridge of high expression that is separated by an area of lower and diffuse expression.
TS17: forelimb bud apical ectodermal ridge Present Non-Uniform 5B F KO

Specimen 5B Hindlimb KO: embryonic day 10.5; Lrp4tm1Her/Lrp4tm1Her (more )
Structure Level Pattern Image Note
TS17: hindlimb bud ectoderm Present Regionally restricted 5B H KO Expression is split into a dorsal and a ventral ridge of high expression that is separated by an area of lower and diffuse expression.
TS17: hindlimb bud apical ectodermal ridge Present Non-Uniform 5B H KO

Specimen 5C Forelimb WT: embryonic day 11.5 (more )
Note: Wild type was either +/+ or heterozygous.
Structure Level Pattern Image Note
TS19: handplate apical ectodermal ridge Present 5C F WT

Specimen 5C Hindlimb WT: embryonic day 11.5 (more )
Note: Wild type was either +/+ or heterozygous.
Structure Level Pattern Image Note
TS19: footplate apical ectodermal ridge Present 5C H WT

Specimen 5C Forelimb KO: embryonic day 11.5; Lrp4tm1Her/Lrp4tm1Her (more )
Structure Level Pattern Image Note
TS19: forelimb bud ectoderm Present Regionally restricted 5C F KO Expression is split into a dorsal and a ventral ridge of high expression that is separated by an area of lower and diffuse expression.
TS19: handplate apical ectodermal ridge Present Non-Uniform 5C F KO

Specimen 5C Hindlimb KO: embryonic day 11.5; Lrp4tm1Her/Lrp4tm1Her (more )
Structure Level Pattern Image Note
TS19: hindlimb bud ectoderm Present Regionally restricted 5C H KO Expression is split into a dorsal and a ventral ridge of high expression that is separated by an area of lower and diffuse expression.
TS19: footplate apical ectodermal ridge Present Non-Uniform 5C H KO

Specimen 5D WT: embryonic day 10.5 (more )
Note: Vibratome crosssection. Wild type was either +/+ or heterozygous.
Structure Level Pattern Image Note
TS17: forelimb bud apical ectodermal ridge Present 5D WT

Specimen 5D KO: embryonic day 10.5; Lrp4tm1Her/Lrp4tm1Her (more )
Note: Vibratome crosssection.
Structure Level Pattern Image Note
TS17: forelimb bud ectoderm Present Regionally restricted 5D KO There is diffuse expression over the entire distal end of the developing limb bud.
TS17: forelimb bud apical ectodermal ridge Present 5D KO


Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
01/28/2026
MGI 6.24
The Jackson Laboratory