Extended Data Figure 3. Retrograde tracers to superficial V1 label cells in the DSGC-RZ.
a–c, Same dLGN as in main Fig. 2f but with GFP+ On-Off DSGC6 axons shown. a, most of the retrogradely labeled cells (magenta/dashed circles) reside in the DSGC-RZ (green terminals). Asterisk: labeled cell outside the DSGC-RZ. Scale, 200 μm b,c, High magnification views of retrogradely labeled dLGN neuron cell bodies with potential contact from GFP+ DSGC axons (arrow in b); c, this cell is in vicinity of DGSC axonal boutons (arrowheads). b,c, Scale, 15 μm. d, Diagram of laminar specific connections between DSGC-RZ and superficial V1 and dLGN core and deeper V1 layers 4 and 6.