Virtual Embryo Atlas
Developmental timeline
TS1 (fertilized egg) → P56 (adult) · click a stage to load samples
TS1
E0.5
1-cell
TS2
E1
2-cell
TS3
E2
4-16 cell
TS4
E3
morula → blastocyst
TS5
E4
late blastocyst
TS6
E4.5
attaching blastocyst
1TS7
E5
egg cylinder
1TS8
E6
prestreak
1TS9
E6.5
streak
2TS10
E7
amnion
2TS11
E7.5
neural plate
5TS12
E8
neural folds
2TS13
E8.5
5-8 somites
2TS14
E9
9-12 somites
10TS15
E9.5
13-20 somites
6TS16
E10
forelimb buds
4TS17
E10.5
hindlimb buds
7TS18
E11
handplate
11TS19
E11.5
hindlimb handplate
3TS20
E12
digital rays
3TS21
E13.5
finger separation
2TS22
E14
eyelid formation
16TS23
E15
eyelids closing
6TS24
E15.5
ear pinna
5TS25
E16.5
long whiskers
2TS26
E17.5
body hair
1TS27
E18.5
pre-birth
P7
P7
postnatal day 7
P56
P56
adult (8 weeks)
E0
E2
E4
E6
E8
E10
E12
E14
E16
E18
Birth
E0E5E10E15BirthP7P56
TS8
E6· PrestreakAnterior-posterior axis specification. Distal visceral endoderm migrates anteriorly.
1samples
1/1anatomy delineated
histology · 1Histology — embryo physically embedded and microtomed into 1–7 µm sections, stained (Nissl / H&E), imaged, and reassembled into a 3D volume. High in-plane resolution, anisotropic voxels.
3D reference models
scRNA-seq · Literature · Predictions — coming soon
Previous
TS7E5
Egg cylinder
About Theiler staging
Karl Theiler's staging system (1972) partitions prenatal development into 28 morphologically distinct steps. Virtual Embryo aligns all imagery, anatomy, and future spatial transcriptomics data to this axis.
Next
E6.5TS9
Streak — gastrulation begins
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