Viewing entries tagged
retina

Tg(atoh7 :gapRFP)cu2Tg

Tg(atoh7 :gapRFP)cu2Tg

About

 atonal bHLH transcription factor 7 is turned on in retinal ganglion cells as they transition from proliferating neuroblast to differentiated neuron. The atoh7 promoter in this transgenic line drives the expression of a membrane tagged version of RFP so the axons of the RGCs are also labelled so the optic nerve and tract projecting from the retina to the optic tectum can be distinguished.

External Links:

 ZFIN

Lab or Origin: Bill Harris Lab

Expressed in: 

Retinal ganglion cells, cilliary marginal zone, retina, optic nerve. optic tract, optic tectum.  

Key Publications

 Zolessi, F.R., Poggi, L., Wilkinson, C.J., Chien, C.B., and Harris, W.A. (2006)
Polarization and orientation of retinal ganglion cells in vivo.
Neural Development. 1:2.

Tg(-8.0cldnb:lynGFP)zf106

Tg(-8.0cldnb:lynGFP)zf106

About

construct:
Tg(-8.0cldnb:LY-EGFP)

This transgenic line was created by the Gilmore lab “ Eight kilobases of sequence directly upstream of the Claudin B start codon were amplified from BAC zK241F11 by using the Expand Long Template PCR System (Roche). The resultant fragment was cloned into a vector containing lynEGFPpA (Koster and Fraser, 2001) flanked by sites for I-SceI, and the resultant construct was injected into one-cell zebrafish embryos by following the meganuclease transgenesis protocol (Thermes et al., 2002).”(Haas & Gilmore, 2006).

The Gilmore lab wanted to label the lateral line and neuromasts of the lateral line system, one allele of this transgenic also had EGFP expression in the nasal retina and telencephalon and has been used by other labs to study eye and telencephalic morphogenesis.

External Links:

 ZFIN

Lab or Origin: Gilmore Lab

Expressed in: 

neuromasts, lateral line, olfactory epithelium, olfactory bulb, , pallium, subpallium, tract of the habenula commissure, nasal retina.

 

Key Publications

 Haas, P., and Gilmour, D. (2006)
Chemokine signaling mediates self-organizing tissue migration in the zebrafish lateral line.
Developmental Cell. 10(5):673-680.

Folgueira, M., Bayley, P., Navratilova, P., Becker, T.S., Wilson, S.W., and Clarke, J.D. (2012)
Morphogenesis underlying the development of the everted teleost telencephalon.
Neural Development. 7(1):32.

Valdivia, L.E., Young, R.M., Hawkins, T.A., Stickney, H.L., Cavodeassi, F., Schwarz, Q., Pullin, L.M., Villegas, R., Moro, E., Argenton, F., Allende, M.L., and Wilson, S.W. (2011)
Lef1-dependent Wnt/β-catenin signalling drives the proliferative engine that maintains tissue homeostasis during lateral line development.
Development (Cambridge, England). 138(18):3931-3941.

Valentin, G., Haas, P., and Gilmour, D. (2007)
The chemokine SDF1a coordinates tissue migration through the spatially restricted activation of Cxcr7 and Cxcr4b.
Current biology : CB. 17(12):1026-1031.

Picker, A., Cavodeassi, F., Machate, A., Bernauer, S., Hans, S., Abe, G., Kawakami, K., Wilson, S.W., and Brand, M. (2009)
Dynamic coupling of pattern formation and morphogenesis in the developing vertebrate retina.
PLoS Biology. 7(10):e1000214.



Et(fos:Gal4-VP16)s1026t

Et(fos:Gal4-VP16)s1026t

About

 This transgenic originates from Herwig Baier’s laboratory and is one of many enhancer trap Gal4 lines created by them. It labels prethalamus, thalamus and posterior tubercular regions. It also has retinal, habenular, pineal, optic tectum and subpallial expression.

External Links:

 ZFIN

Lab or Origin:

Expressed in: 

 subpallium, habenulae, pineal, emminentia thalami, prethalamus, thalamus, posterior tuberculum, retina, optic tectum, hypothalamus, preglomerular complex.

Key Publications

 Scott, E.K., and Baier, H. (2009) The cellular architecture of the larval zebrafish tectum, as revealed by gal4 enhancer trap lines. Frontiers in neural circuits. 3:13.

pku2Et/ ETvmat2:GFP

pku2Et/ ETvmat2:GFP

About

 Synonyms: Et(gata2a:EGFP)pku2, Et(gata2a:GFP)zf81, pku2Et, ETvmat2:GFP

The ETvmat2:GFP transgenic zebrafish line was identified from a large scale enhancer trap screen (unpublished data (Wen et al., 2008)) using a Tol2 vector containing a 249 bp zebrafish gata2 minimal promoter linked to a GFP reporter gene. (Wen et al., 2008). The enhancer trap vector was inserted in the second intron of vmat2 gene with the transcription direction of the GFP reporter opposite to that of the vmat2 gene (Wen et al., 2008).

This enhancer trap line recapitulates the expression pattern of vmat2 and labels most monaminergic neurons in the zebrafish. Vesicular monoamine transporter 2 (Vmat2) is a monoamine transporter VMAT2 is a membrane protein that transports monoamines, including neurotransmitters such as dopamine, norepinephrine, serotonin, and histamine from the cytosol into synaptic vesicles.

External Links:

 ZFIN

Lab or Origin: PKU Zebrafish Functional Genomics Group

Expressed in: 

 monoaminergic neurons, olfactory bulb, telencephalon, pretectum, pineal, posterior tuberculum, torus longitudinalis, raphe, ventral lateral group of serotinergic neurons in hindbrain(VL) , hypothalamus, locus coerulus.

Key Publications

Wen, L., Wei, W., Gu, W., Huang, P., Ren, X., Zhang, Z., Zhu, Z., Lin, S., and Zhang, B. (2008)
Visualization of monoaminergic neurons and neurotoxicity of MPTP in live transgenic zebrafish. Developmental Biology. 314(1):84-92. 

Farrar, M.J., Kolkman, K.E., Fetcho, J.R. (2018)
Features of the structure, development and activity of the Zebrafish Noradrenergic System explored in new CRISPR transgenic lines.
The Journal of comparative neurology. 526(15):2493-2508.

Tg(pou4f1-hsp70l:GFP)

Tg(pou4f1-hsp70l:GFP)

About

Tg(pou4f1-hsp70l:GFP) formally Tg(brn3a-hsp70:GFP) expresses green fluorescent protein (GFP) under the control of enhancer elements of brn3a, a POU-domain transcription-factor-encoding gene expressed in the habenula, retina, optic tectum, torus semicircularis and cranial sensory ganglia including the neuromasts of the lateral line and inner ear.

GFP is expressed in retinal ganglion cells and amacrine cells. Projections from RGCs can be seen traversing the optic nerve and innervating the superficial neuropil layer of the optic tectum. In addition, there were neurons expressing GFP in the deeper layers of the tectum. Given that the tectum sends motor outputs from the deeper layers it is likely that these neurons were involved in sending motor outputs to the hindbrain.

The tectobulbar tract descends from the deeper layers of the optic tectum ipsilaterally to connect with the reticulospinal neurons in the hindbrain (Sato et al., 2007).

This transgenic expresses GFP in the dorsal medial habenula subnuclei. Projections from dHbM neurons to the IPN can be seen traversing the fasiculus retroflexus and terminating in the Interpeduncular nuclei. Habenula axons exhibit a spiralling terminal morphology when innervating the IPN (Aizawa et al., 2005).

 

External Links:

 ZFIN

Lab of Origin: Hitoshi Okamoto Lab

Transgene expressed in: 

dorsal habenula, retina, optic tectum, tecto-bulbar tract, fasiculus retroflexus, neuromasts of lateral line, cranial nerve ganglia, hair cells of inner ear.

Key Publications

Sato, T., Hamaoka, T., Aizawa, H., Hosoya, T., and Okamoto, H. (2007)
Genetic single-cell mosaic analysis implicates ephrinB2 reverse signaling in projections from the posterior tectum to the hindbrain in zebrafish.
The Journal of Neuroscience 27(20):5271-5279.

Aizawa, H., Bianco, I.H., Hamaoka, T., Miyashita, T., Uemura, O., Concha, M.L., Russell, C., Wilson, S.W., and Okamoto, H. (2005)
Laterotopic Representation of Left-Right Information onto the Dorso-Ventral Axis of a Zebrafish Midbrain Target Nucleus.
Current biology. 15(3):238-243.

deCarvalho, T.N., Subedi, A., Rock, J., Harfe, B.D., Thisse, C., Thisse, B., Halpern, M.E., Hong, E. (2014) Neurotransmitter map of the asymmetric dorsal habenular nuclei of zebrafish.
Genesis (New York, N.Y. : 2000). 52(6):636-55.

 

Tg(-2.7shh:GFP)

Tg(-2.7shh:GFP)

About

The hedgehog family of genes encodes a group of morphogenic preoteins that have a critical role in the development and patterning of midline brain structures and other systems. In zebrafish  two of the three vertebrate hh genes are duplicated shha and shhb. This trangenic from the Nüsslein-Volhard lab has been used to study the role that Shh plays in patterning both the retina and the diencephalon.

All images of shh:GFP were produced by Monica Folgueira.

External Links:

 ZFIN

Lab or Origin: Nüsslein-Volhard, Christiane

Expressed in: 

basal plate midbrain, zona limitans intrathalamica, prethalamus, retina.

 

Key Publications

 Neumann, C.J. and Nüsslein-Volhard, C. (2000) Patterning of the zebrafish retina by a wave of sonic hedgehog activity. Science (New York, N.Y.). 289(5487):2137-2139.

Scholpp, S., Foucher, I., Staudt, N., Peukert, D., Lumsden, A., and Houart, C. (2007) Otx1l, Otx2 and Irx1b establish and position the ZLI in the diencephalon. Development (Cambridge, England). 134(17):3167-3176

sox3h10:EGFP

sox3h10:EGFP

About

 

External Links:

 ZFIN

Lab or Origin: Tom Becker Lab

Expressed in: 

 ciliary marginal zone of retina,pallium, pineal, habenula, hindbrain

Key Publications

 Navratilova, P., Fredman, D., Hawkins, T.A., Turner, K., Lenhard, B., and Becker, T.S. (2009) Systematic human/zebrafish comparative identification of cis-regulatory activity around vertebrate developmental transcription factor genes. Developmental Biology. 327(2):526-540.