Transgenic line with gal4 insertion useful to study morphogenesis of craniofacial perichondrium, vascular endothelium-associated cells, floor plate, and dorsal midline radial glia during zebrafish development.

Development, Growth & Differentiation
Sohei NakayamaKohei Hatta

Abstract

Zebrafish is a good model for studying vertebrate development because of the availability of powerful genetic tools. We are interested in the study of the craniofacial skeletal structure of the zebrafish. For this purpose, we performed a gene trap screen and identified a Gal4 gene trap line, SAGFF(LF)134A. We then analyzed the expression pattern of SAGFF(LF)134A;Tg(UAS:GFP) and found that green fluorescent protein (GFP) was expressed not only in craniofacial skeletal elements but also in the vascular system, as well as in the nervous system. In craniofacial skeletal elements, strong GFP expression was detected not only in chondrocytes but also in the perichondrium. In the vascular system, GFP was expressed in endothelium-associated cells. In the spinal cord, strong GFP expression was found in the floor plate, and later in the dorsal radial glia located on the midline. Taking advantage of this transgenic line, which drives Gal4 expression in specific tissues, we crossed SAGFF(LF)134A with several UAS reporter lines. In particular, time-lapse imaging of photoconverted floor-plate cells of SAGFF(LF)134A;Tg(UAS:KikGR) revealed that the floor-plate cells changed their shape within 36 h from cuboidal/trapezoidal to wine glass shaped....Continue Reading

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Citations

Jul 16, 2013·Interface Focus·Fränze ProgatzkyCristina Lo Celso
Jun 5, 2016·Experimental Hematology·Adriana De La GarzaTeresa V Bowman
Mar 3, 2021·Developmental Cell·Joshua T WeinrebTeresa V Bowman

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