Wikitree doesn't collect actual DNA details, just the fact that you have taken a DNA test (or tests), what kind, and with what company. On your own profile, click the "Add" dropdown at the top right of the page. The first item says "DNA Test information." Just click on that and follow the directions. Once you've added your test information it will take about 24 hours to propagate back through your ancestors' profiles here on Wikitree. Those profiles will show you and other descendants who have taken DNA tests. We encourage everyone to upload their test results to Gedmatch in order to compare the actual details.