deCODEme says my mitochondrial haplogroup is M*. 23andMe says E1a (my mom is from the Philippines). I don't think they even test for E.
Ha, that's excellent! It would've been even more awesome if the result showed a picture of Kari saying this: http://www.youtube.com/watch?v=GwExDG7n7Zg
The Relationship Check is not a new feature -- it's been there since the beginning, but they've expanded the range somewhat since then. At first it would only predict very close relationships (no more distant than grandparents/grandchildren or uncle/nephew). It will now recognize first cousins once removed, but not a second cousin, in my set of test cases.
23andMe's Relative Finder will go out to 10th cousins, albeit in a very probabilistic fashion with a wide confidence interval. It may be that deCODEme's more conservative approach is due to the nature of their Icelandic genealogies, where practically everybody is related to everybody else through multiple lines of descent. That would certainly make it harder to predict relationships.
Disclosure: I have a consulting arrangement with 23andMe, but the statements expressed above are my own and not official policy of 23andMe.
To Daniel and Ann
I, too, recently uploaded my 23andMe data to deCODEme, and am exploring it now. What a great opportunity!
It seems deCODEme's Relationship Check only allows comparisons to specific people ("Friends") who I have already identified. Compare that with 23andMe's Relative Finder, finds people in their database who are likely related to me, and offers the opportunity for contact. If that's true, the 23andMe service seems much more efficient.
Or maybe I'm missing something?
Thanks to Daniel for the excellent blog! And to Ann for her great book.
I don't like 23andMe. A total waste of money. Learned nothing about my ancestry which is more important to me than silly health prognostications or finding people supposedly related to you, which frankly I don't want.
deCODEme's health risk indicators are better, their PCA maps better, their dna browser better and their community doesn't contain the bias of 23andMe.
I am truly sorry I went to 23andMe. A horrible site.