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Xenbase Image ID: 23747

Fig. 2. mRNA expression of X. laevis Id2 (A, B, C) and Id3 (D, E, F). In all cases, anterior is to the left. (A, B, D, E) are dorsal views, (C and F) are lateral views. (A) Stage 15 embryo stained with Id2. Bilateral stripes at midline marked by black asterisk. Expression in the lateral plate mesoderm (red arrowheads) extends ventrally away from the viewer. (B) Stripe in the rhombencephalon (blue arrowhead) and population of cells that could be migrating crest (blue arrow). Staining in the lateral plate mesoderm has coalesced (red arrowheads). (C) Id2 is expressed in the eyes, branchial arches, brain structures, kidneys (red arrowhead), segmented myotome (m), and anterior blood islands (b). (D) Expression of Id3 at stage 11 is throughout the ectoderm but not in the blastopore (at right). (E) Stage 18 embryo stained with Id3. Expression is strong in the anterior neural plate, extending posteriorly to a stripe in the hindbrain (open red arrowhead) and a smaller stripe posterior (closed red arrowhead). Expression extends posteriorly throughout the neural plate. (F) Id3 is expressed in the most dorsal and ventral portions of the myotome (m).

Image published in: Liu KJ and Harland RM (2003)

Copyright © 2003. Image reproduced with permission of the Publisher, Elsevier B. V.

id2.Lxid2X.laevisThroughout NF stage 15lateral plate mesoderm
neural groove
neural plate
id3.Lxid3, heir-1, xidia, xIdx, id3-a, id3-bX.laevisThroughout NF stage 11ectoderm
id2.Lxid2X.laevisThroughout NF stage 33 and 34eye
branchial arch
ventral blood island
pronephric kidney
pronephric duct
id3.Lxid3, heir-1, xidia, xIdx, id3-a, id3-bX.laevisThroughout NF stage 18pre-chordal neural plate
chordal neural plate
anterior neural fold
neural plate
preplacodal ectoderm
id3.Lxid3, heir-1, xidia, xIdx, id3-a, id3-bX.laevisSometime during NF stage 33 and 34 to NF stage 37 and 38eye
branchial arch
dorsal fin margin
ventral fin margin
pharyngeal arch
mandibular arch
hyoid arch
spinal cord
hypaxial muscle
id2.Lxid2X.laevisThroughout NF stage 18lateral plate mesoderm
trigeminal placode

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