Comments (1)
Hi @abberclark,
In the example you showed, we plotted the outer layer of receptors without 'really' taking into account the corresponding target genes per receptor. What we did was dividing the target genes in 3 groups: mainly Csf1-regulated targets, Bmp/Dll-regulated targets, and targets of 'other' top-ranked ligands. All Csf1-regulated targets were then plotted under the Csf1 receptor, all Bmp/Notch-regulated targets were plotted under all expressed receptors for the specific Bmps and Dlls, but we do not infer links between specific receptors and specific targets. So if you see that e.g. Myc is under Notch1, this does not mean that the only receptor upstream of Myc is Notch1, but just that Myc was classified to belong to the group of targets genes downstream to the group of ligands of which at least one ligand has Notch1 as receptor. For the third group, there is even less correspondence, here we just plotted all 'other' targets under all 'other' receptors.
So currently, you cannot use this approach to make a ligand-receptor-target plot with real correspondence between receptors and targets. Sorry for not being able to help you really out. To check real correspondence between ligand-receptor-target, I would suggest using the heatmap visualizations.
In the future, I might look for a solution to this because the circos plot is a beautiful visualization, but it seems hard to do and is not really a priority right now.
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