I would say yes, but it depends. See http://www.ncbi.nlm.nih.gov/pubmed/20096729, http://www.ncbi.nlm.nih.gov/pubmed/16374793, http://www.ncbi.nlm.nih.gov/pubmed/16503162, http://www.ncbi.nlm.nih.gov/pubmed/9642104 and then my article, http://www.ncbi.nlm.nih.gov/pubmed/23220248, where I show the presence of tenascin and, since I am yet to actually see any oligodendrocyte on the optic tectum, I must conclude that the radial glia are synthesizing the tenascin.

Using anti-vimentin, anti-CNP, anti-MBP and anti-GFAP I have not observed any MBP+ cells in the glia limitans of the Nothobranchius optic tectum (who posses radial glia only, not regular astrocytes) but have observed vimentin+, CNP+ and GFAP+ glia. CNP+ glia were not GFAP+ (best I could tell). There could be multiple classes of radial glia and you will need to determine the properties of the radial glia of your model organism. (This is likely to have been published in the stem-cell literature.) In mammals vimentin+ cells are: radial glia, oligodendrocytes & microglia. Oligodendrocytes and oligo precursor cells are all CNP+. Most radial glia are positive to one or several splice variants of GFAP.

Good luck

I would certainly say yes.

In the retina, the radial glial cells persist through adulthood; they are called Muller cells and are easily distinguished from astrocytes - in those retinae that have astrocytes. In various species components of ECM / basement membrane have been shown to be produced by Muller cells. They have also been shown to adhere to the retinal equivalent of the pia basement membrane in dystroglycan dependent fashion. The labs that made the most contributions are: Reichenhbach (Leipzig); Rendon (Paris); Halfter (USA); Hu (USA). There is much more there is you need it.

Our work -

Libby. R.T., Xu, Y., Selfors, L.M., Brunken, W.J. and Hunter, D.D. Identification of the cellular source of laminin β2 in the adult and developing vertebrate retina. Journal of Comparative Neurology 389: 655-667. 1997

Libby, R. T., Champliaud, M.F., Claudepierre, T., Xu, Y., Gibbons, E.P., Koch, M., Burgeson, R.E., Hunter, D.D. and Brunken, W.J. Laminin Expression in Adult and Developing Retinae: Evidence of Two Novel CNS Laminins. Journal of Neuroscience 20: 6517-6528. 2000

Hunter, D.D., Zhang, M., Ferguson, J.W., Koch, M., and Brunken, W.J. The extracellular matrix component WIF-1 is expressed during, and can modulate, retinal development. Molecular and Cellular Neuroscience 27: 477-488. 2004

Some selected other work;

Lange J, Yafai Y, Noack A, Yang XM, Munk AB, Krohn S, Iandiev I, Wiedemann P, Reichenbach A, Eichler W. The axon guidance molecule Netrin-4 is expressed by Müller cells and contributes to angiogenesis in the retina. Glia. 2012 Oct;60(10):1567-78. doi: 10.1002/glia.22376. Epub 2012 Jul 9.

Claudepierre T, Dalloz C, Mornet D, Matsumura K, Sahel J, Rendon A. Characterization of the intermolecular associations of the dystrophin-associated glycoprotein complex in retinal Müller glial cells.

J Cell Sci. 2000 Oct;113 Pt 19:3409-17

Hu H1, Candiello J, Zhang P, Ball SL, Cameron DA, Halfter W. Retinal ectopias and mechanically weakened basement membrane in a mouse model of muscle-eye-brain (MEB) disease congenital muscular dystrophy. Mol Vis. 2010 Jul 28;16:1415-28.

Thank you all very much for your helpful responses!!