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Gene Expression Data
Assay Details
Assay
Reference: J:1461 Simeone A, et al., Two vertebrate homeobox genes related to the Drosophila empty spiracles gene are expressed in the embryonic cerebral cortex. EMBO J. 1992 Jul;11(7):2541-50
Assay type: RNA in situ
MGI Accession ID: MGI:3766956
Gene symbol: Emx2
Gene name: empty spiracles homeobox 2
Probe: Emx2 cDNA
Probe preparation: Antisense labelled with S35 RNA
Visualized with: Autoradiography
Results
Specimen 2f: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: cerebral cortex Present 2f Expression in presumptive cortex.
TS20: telencephalon Present Regionally restricted 2f Much stronger expression in posterior dorsal telencephalon, with a sharp posterior boundary and decreasingly intensity in progressively more anterior regions.
TS20: head Present Regionally restricted 2f Expression in ectodermal regions in the snout.
TS20: reproductive system Present Regionally restricted 2f Expression in the genital ridge.

Specimen 2g: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: cerebral cortex Present 2g Expression in presumptive cortex.
TS20: telencephalon Present Regionally restricted 2g Much stronger expression in posterior dorsal telencephalon, with a sharp posterior boundary and decreasingly intensity in progressively more anterior regions.
TS20: midbrain Present Regionally restricted 2g Expression in limited mesencephalic areas.
TS20: nasal cavity epithelium Present 2g
TS20: head Present Regionally restricted 2g Expression in ectodermal regions in the snout.
TS20: reproductive system Present Regionally restricted 2g Expression in the genital ridge.

Specimen 2h: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: cerebral cortex Present 2h Expression in presumptive cortex.
TS20: telencephalon Present Regionally restricted 2h Much stronger expression in posterior dorsal telencephalon, with a sharp posterior boundary and decreasingly intensity in progressively more anterior regions.
TS20: diencephalon Present Regionally restricted 2h Expression domain in the head appears to be extended to specific diencephalic regions.
TS20: thalamus Present Regionally restricted 2h Diffuse expression in the ventral thalamus.
TS20: midbrain Present Regionally restricted 2h Expression in limited mesencephalic areas.
TS20: nasal cavity epithelium Present 2h
TS20: head Present Regionally restricted 2h Expression in ectodermal regions in the snout.
TS20: metanephros Present Regionally restricted 2h Expression in metanephric tubular epithelia.
TS20: reproductive system Present Regionally restricted 2h Expression in the genital ridge.

Specimen 2i: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: cerebral cortex Present 2i Expression in presumptive cortex.
TS20: telencephalon Present Regionally restricted 2i Much stronger expression in posterior dorsal telencephalon, with a sharp posterior boundary and decreasingly intensity in progressively more anterior regions. Expression in the olfactory bulbs.
TS20: diencephalon Present Regionally restricted 2i Expression domain in the head appears to be extended to specific diencephalic regions.
TS20: thalamus Present Regionally restricted 2i Diffuse expression in the ventral thalamus.
TS20: midbrain Present Regionally restricted 2i Expression in limited mesencephalic areas.
TS20: nasal cavity epithelium Present 2i
TS20: head Present Regionally restricted 2i Expression in ectodermal regions in the snout.
TS20: metanephros Present Regionally restricted 2i Expression in metanephric tubular epithelia.

Specimen 2j: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: cerebral cortex Present 2j Expression in presumptive cortex.
TS20: telencephalon Present Regionally restricted 2j Much stronger expression in posterior dorsal telencephalon, with a sharp posterior boundary and decreasingly intensity in progressively more anterior regions.
TS20: diencephalon Present Regionally restricted 2j Expression domain in the head appears to be extended to specific diencephalic regions.
TS20: thalamus Present Regionally restricted 2j Diffuse expression in the ventral thalamus.
TS20: midbrain Present Regionally restricted 2j Expression in limited mesencephalic areas.
TS20: head Present Regionally restricted 2j vExpression in ectodermal regions in the snout.

Specimen 2l: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: cerebral cortex Present Regionally restricted 2l Expression is not uniformly distributed across the cortical layers
TS20: cerebral cortex mantle layer Trace 2l Almost undetectable within the external mantle layer.
TS20: telencephalon Present Regionally restricted 2l No expression detectable in the internal basal telencephalic regions.

Specimen 2m: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: olfactory epithelium Present 2m
TS20: nasal cavity respiratory epithelium Absent 2m

Specimen 2p: embryonic day 13.5 (more )
Structure Level Pattern Image Note
TS21: nasal cavity Present 2p
TS21: diencephalon Present Regionally restricted 2p Expression in mammillary recess
TS21: head Present Regionally restricted 2p Expression in ectodermal regions in the snout and limbs.
TS21: limb Present Regionally restricted 2p Expression in ectodermal regions in the snout and limbs.

Specimen 2q: embryonic day 13.5 (more )
Structure Level Pattern Image Note
TS21: cerebral cortex Present Regionally restricted 2q Uneven localization of expression across the cortical layers.
TS21: diencephalon Present Regionally restricted 2q Localized expression in the diencephalon. Expression in mammillary recess.
TS21: renal tubule Present Regionally restricted 2q Expression in metanephric tubular epithelia.

Specimen 3e: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: head Present Regionally restricted 3e Diverse expression in the head.
TS20: midbrain Present Regionally restricted 3e Localized expression in mesencephalic areas.

Specimen 3f: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: head Present Regionally restricted 3f Diverse expression in the head.
TS20: midbrain Present Regionally restricted 3f Localized expression in mesencephalic areas. Possible expression in interpeduncular areas.

Specimen 3g: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: diencephalon Present Regionally restricted 3g Expression intensity in the diencephalon varies with the anteroposterior level of the section.
TS20: thalamus Present Regionally restricted 3g Thalamic expression is strong in a limited region of the ventral portion of the dorsal thalamus.
TS20: hypothalamus Present Regionally restricted 3g Expression in hypothalamic regions just posterior to the localization of Rathke's pouch.
TS20: head Present Regionally restricted 3g Authors report expression in branchial arches in the first, mandibular, arch

Specimen 3h: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: diencephalon Present Regionally restricted 3h Expression intensity in the diencephalon varies with the anteroposterior level of the section.
TS20: thalamus Present Regionally restricted 3h Thalamic expression is strong in a limited region of the ventral portion of the dorsal thalamus.
TS20: epithalamus Present 3h
TS20: head Present Regionally restricted 3h Authors report expression in branchial arches in the first, mandibular, arch.

Specimen 3i: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: diencephalon Present Regionally restricted 3i Expression intensity in the diencephalon varies with the anteroposterior level of the section.
TS20: thalamus Present Regionally restricted 3i Thalamic expression is strong in a limited region of the ventral portion of the dorsal thalamus.
TS20: head Present Regionally restricted 3i Authors report expression in branchial arches in the first, mandibular, arch.

Specimen 3j: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: cerebral cortex Present Regionally restricted 3j Expression in dorsal and posterior basal cortical regions.

Specimen 3k: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: cerebral cortex Present Regionally restricted 3k Expression in dorsal and posterior basal cortical regions.

Specimen 3l: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: cerebral cortex Present Regionally restricted 3l Expression in dorsal and posterior basal cortical regions.

Specimen 3p: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: cerebral cortex Present 3p Major site of expression is in the cortex.
TS20: diencephalon Present 3p

Specimen 3q: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: cerebral cortex Present 3q Major site of expression is in the cortex.
TS20: diencephalon Present 3q

Specimen 3r: embryonic day 12.5 (more )
Structure Level Pattern Image Note
TS20: cerebral cortex Present 3r Major site of expression is in the cortex.
TS20: diencephalon Present 3r
TS20: midbrain Present 3r

Specimen 4c: embryonic day 8.5 (more )
Note: 8 somites.
Structure Level Pattern Image Note
TS13: neural ectoderm Present Regionally restricted 4c Expression in anterior dorsal neurectodermal regions.

Specimen 4d: embryonic day 9.0 (more )
Note: 15 somites.
Structure Level Pattern Image Note
TS14: central nervous system Present Regionally restricted 4d Authors report stronger expression in dorsal neurectoderm.

Specimen 4e: embryonic day 9.5 (more )
Note: 22-23 somites.
Structure Level Pattern Image Note
TS15: central nervous system Present Regionally restricted 4e Clear antero-posterior delimination of expression in dorsal neurectoderm.

Specimen 4f: embryonic day 9.75 (more )
Note: 27 somites.
Structure Level Pattern Image Note
TS16: future forebrain Present Regionally restricted 4f Clear antero-posterior delimination of expression in dorsal neurectoderm, with a posterior boundary well within the roof of the presumptive diencephalon.
TS16: diencephalon Present Regionally restricted 4f Ventral expression in the floor of the presumptive diencephalon.
TS16: future midbrain Absent 4f
TS16: surface ectoderm Present Regionally restricted 4f Anterior ectodermal localization of expression, in a continuous region probably including the olfactory placodes.
TS16: genitourinary system Present Regionally restricted 4f Expression in coelomic epithelium covering the mesonephric column, as well as the final part of the mesenteric attachment, fated to contribute to the genital ridge.

Specimen not shown: embryonic day 15.0 (more )
Structure Level Pattern Image Note
TS23: embryo Present Single cells Authors report expression patterns identical to that seen in E13.5 embryos.

Specimen 5f: embryonic day 17.0 (more )
Structure Level Pattern Image Note
TS25: head Present Regionally restricted 5f Authors state that expression reproduces that of Emx1.
TS25: olfactory epithelium Present 5f

Specimen 5g: embryonic day 17.0 (more )
Structure Level Pattern Image Note
TS25: head Present Regionally restricted 5g Authors state that expression reproduces that of Emx1.

Specimen 5h: embryonic day 17.0 (more )
Structure Level Pattern Image Note
TS25: head Present Regionally restricted 5h Authors state that expression reproduces that of Emx1.

Specimen 5i: embryonic day 17.0 (more )
Structure Level Pattern Image Note
TS25: head Present Regionally restricted 5i Authors state that expression reproduces that of Emx1.

Specimen 5j: embryonic day 17.0 (more )
Structure Level Pattern Image Note
TS25: head Present Regionally restricted 5j Authors state that expression reproduces that of Emx1.
TS25: hypothalamus Present Regionally restricted 5j Expression in posterior hypothalamic germinal areas.

Specimen 5l: embryonic day 17.0 (more )
Structure Level Pattern Image Note
TS25: head Present Regionally restricted 5l Authors state that expression reproduces that of Emx1.

Specimen 5m: embryonic day 13.5 (more )
Structure Level Pattern Image Note
TS21: nasal cavity Present 5m

Specimen 5n: embryonic day 17.0 (more )
Structure Level Pattern Image Note
TS25: head Present Regionally restricted 5n Authors state that expression reproduces that of Emx1.


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last database update
01/06/2026
MGI 6.24
The Jackson Laboratory