|
Gene |
Clone |
Species |
Stages |
Anatomy |
neurog2.L
|
|
laevis
|
NF stage 10.5
|
marginal zone
,
dorsal marginal zone
,
involuting marginal zone
,
neural plate
,
dorsal involuting marginal zone
|
neurog2.L
|
|
laevis
|
NF stage 11.5
|
marginal zone
,
ventral marginal zone
,
ventro-lateral marginal zone
,
dorso-lateral marginal zone
,
dorsal marginal zone
,
[+]
|
neurog2.L
|
|
laevis
|
NF stage 12.5
|
neuroectoderm
,
neural plate
|
Display additional annotations [+]
Gene |
Clone |
Species |
Stages |
Anatomy |
nhlh1
|
|
laevis
|
NF stage 10.5
|
dorsal marginal zone
,
involuting marginal zone
,
blastopore lip
,
upper blastopore lip
|
nhlh1
|
|
laevis
|
NF stage 11.5
|
marginal zone
,
ventral marginal zone
,
ventro-lateral marginal zone
,
dorso-lateral marginal zone
,
dorsal marginal zone
,
[+]
|
nhlh1
|
|
laevis
|
NF stage 12.5
|
mesoderm
,
neural plate
|
lmo1
|
|
laevis
|
NF stage 10.5
|
marginal zone
,
dorsal marginal zone
,
blastopore lip
,
dorsal involuting marginal zone
|
lmo1
|
|
laevis
|
NF stage 11.5
|
mesoderm
,
marginal zone
,
dorsal marginal zone
,
blastopore lip
,
presumptive paraxial mesoderm
,
[+]
|
lmo1
|
|
laevis
|
NF stage 12.5
|
mesoderm
,
neural plate
,
presumptive paraxial mesoderm
|
|
|
Fig. 3. Spatial and temporal expression of XHEN-1 and XLMO-3
during early neurogenesis. (A) Detection of XHEN1, XLMO-3 and
X-NGNR-1 during early development by RPA. The probes as
indicated on the left side were made by the Dig-RNA labeling kit.
XLMO-3 and XHEN1 are expressed earlier than X-NGNR-1.
(B-J) Stage 10. 5, 11. 5 and 12 Xenopus embryos were hybridized
with probes for XHEN1, XLMO-3 and X-NGNR-1. Uncleared
embryos are shown in a dorsal view, with anterior to the left.
XLMO-3 and XHEN1 are expressed in the same location. |
|
Gene |
Clone |
Species |
Stages |
Anatomy |
neurog2.L
|
|
laevis
|
NF stage 14
|
brain
,
spinal cord
,
neuroectoderm
,
pre-chordal neural plate
,
chordal neural plate
,
[+]
|
neurog2.L
|
|
laevis
|
NF stage 25
|
brain
,
forebrain
,
midbrain
,
hindbrain
,
spinal cord
,
[+]
|
Display additional annotations [+]
Gene |
Clone |
Species |
Stages |
Anatomy |
tubb2b
|
|
laevis
|
NF stage 14
|
brain
,
spinal cord
,
neuroectoderm
,
pre-chordal neural plate
,
chordal neural plate
,
[+]
|
tubb2b
|
|
laevis
|
NF stage 25
|
brain
,
forebrain
,
midbrain
,
hindbrain
,
spinal cord
,
[+]
|
nhlh1
|
|
laevis
|
NF stage 14
|
neuroectoderm
,
pre-chordal neural plate
,
chordal neural plate
,
neural plate
,
optic field
,
[+]
|
nhlh1
|
|
laevis
|
NF stage 25
|
brain
,
forebrain
,
midbrain
,
hindbrain
,
spinal cord
,
[+]
|
nhlh1
|
|
laevis
|
NF stage 35 and 36
|
brain
,
mandibular crest
,
hyoid crest
,
eye
,
cranial neural crest
|
nhlh1
|
|
laevis
|
NF stage 20
|
spinal cord
,
neural tube
,
ventrolateral neural tube
|
lmo1
|
|
laevis
|
NF stage 14
|
pre-chordal neural plate
,
chordal neural plate
,
neural plate
,
Rohon-Beard neuron
,
neuron
,
[+]
|
lmo1
|
|
laevis
|
NF stage 25
|
brain
,
forebrain
,
midbrain
,
hindbrain
,
spinal cord
,
[+]
|
lmo1
|
|
laevis
|
NF stage 35 and 36
|
brain
,
forebrain
,
midbrain
,
hindbrain
,
spinal cord
,
[+]
|
lmo1
|
|
laevis
|
NF stage 20
|
somite
,
posterior neural tube
,
anterior neural tube
,
sclerotome
,
neural tube
,
[+]
|
|
|
Fig. 4. Comparison of the expression
patterns of XHEN1, XLMO-3, XNGNR-
1 and N-tubulin. (A-J) Stage 14,
25 and 35 Xenopus embryos were
hybridized with probes for XLMO-3,
XHEN1, X-NGNR-1 and N-tubulin.
Embryos are shown in a dorsal (stage
14), dorsal-lateral (stage 25) or lateral
(stage 35) view, with anterior to the left.
At stage 14, XLMO-3 and XHEN1 are
expressed only in two domains which
will become interneurons (I) and
motoneurons (M) of spinal cord, while
X-NGNR-1 and N-tubulin are expressed
also in the domains which will form
sensory neurons (S) besides of these two
medial domains. At stage 25, the
expression patterns for all four probes
are very similar. At stage 35, XHEN1 is
only expressed in the brain region.
(K,L) Transverse sections of Xenopus
embryos hybridized with probes for
XHEN1 and XLMO-3 at stage 20. In the
neural tube, both of XHEN1 and
XLMO-3 are located in the ventral part
of spinal cord which is formed by
interneurons and motoneurons. |