Depression genetic study finds nothing.

This study:

Analysis of 50,000 exome-sequenced UK Biobank subjects fails to identify genes influencing probability of psychiatric referral

Speaks for itself. There is, of course, the  usual hope for the future:

  It seems unlikely that depression genetics research will produce findings that might have a substantial clinical impact until far larger samples become available.

There is simply no reason to continue believing at this point that such genetic variants will be found. They simply don't exist. There needs to be a cutoff at which point this would be acknowledged, or this shell game will never end.