Temporal mRNA expression of glypicans genes during early embryonic development.

RT-PCR was performed for all 10 genes using cDNA from specified stages of development. β-actin was used as a control. Ep, epiboly; som, somites; hpf, hours post fertilization.

EXPRESSION / LABELING:
Genes:
Fish:
Anatomical Term:
Stage Range: 8-cell to Prim-5

Spatial expression of zebrafish glypicans during cleavage to early segmentation stages.

In situ hybridization was performed to detect glypican mRNA during early developmental stages. Lateral views with anterior to the top (A, B, C) and dorsal to the right (B, C). Developmental stages and gene names are indicated. tb, tailbud; hb, hindbrain; en, endoderm; me, mesencephalon; n.d: not detected.

Spatial expression pattern of zebrafish glypicans during segmentation and pharyngula stages.

In situ hybridization was carried out to detect glypican mRNA at 20 somite stage: 19 hpf and pharyngula stages: 24-26 hpf. Lateral view of whole mount embryos, anterior to the left. Expression pattern of gpc1a (A, A′), gpc1b (B, B′); subfigure in B is an optical section indicating expression in yolk cells (arrowheads) and branchial arch primordium, gpc2 (C, C′), gpc3 (D, D′), gpc4 (E, E′), gpc5a (F, F′), gpc5b (G, G′), gpc5c (H, H′), gpc6a (I, I′), gpc6b (J, J′). di, diencephalon; te, telencephalon; hb, hindbrain; tg, tegmentum; nc, neural crest; pm, paraxial mesoderm; som, somites; ba, branchial arch; y, yolk; mb, midbrain; ff, fin fold; ov, otic vesicle; fp, floor plate; psom, posterior somites; ep, epiphysis; tri, trigeminal placode; cl, cloaca; pllp, posterior lateral line primordium; cg, cranial ganglion.

Specific expression domains for gpc1a, gpc1b and gpc5b.

Transverse cross sections revealed the expression details of gpc1a, gpc1b and gpc5b. Dotted line indicates the plane of section. pllp: posterior lateral line primordium; pba: posterior branchial arch; my: myotome; fp: floor plate; nc: notochord.

Acknowledgments
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