tag:blogger.com,1999:blog-2010859453749706440.post8240450637144988170..comments2024-02-22T02:55:12.533-08:00Comments on Roots & Recombinant DNA: New 23andMe Ancestry Timeline ToolTL Dixonhttp://www.blogger.com/profile/14229718012489889741noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-2010859453749706440.post-65739262812930205842017-04-26T00:02:31.972-07:002017-04-26T00:02:31.972-07:00Same here! Most of my ancestors were in the USA fr...Same here! Most of my ancestors were in the USA from before it's founding so my British is coming from all my ancestors who kept marrying other people who were predominantly British. But it was correct on my German ancestor. I think it is completely off base on my South Asian which I believe is actually Romany Gypsy and not Indian. Very interesting though.Nehttps://www.blogger.com/profile/18256957327525842625noreply@blogger.comtag:blogger.com,1999:blog-2010859453749706440.post-16113429663176199402017-03-30T15:11:43.287-07:002017-03-30T15:11:43.287-07:00Thanks for an interesting read. As for me, I'd...Thanks for an interesting read. As for me, I'd like 23andMe to advance downstream ancestry. Maybe, even offer Next Generation Sequencing.Herb Holeman, Authorhttps://www.blogger.com/profile/03196556534162701779noreply@blogger.comtag:blogger.com,1999:blog-2010859453749706440.post-36652653962175730692017-01-15T09:12:16.465-08:002017-01-15T09:12:16.465-08:00I just logged on and was immediately underwhelmed....I just logged on and was immediately underwhelmed. Like you stated, it may work better for some individuals. I believe this can be misleading. Mine states I have a ancestor born between 1850-1910 that is 100 % African. Roughly 68% of my ancestry is African. Of that 64% is West African. I immediately started thinking of the African brought to Cuba during the late 1800's. But that does not take into account the Africans that did not mix with Europeans or Native Americans that came to new world during a longer time frame. I too would rather see an update to the Ancestry Composition. But at least there is some activity. <br /><br />To me the site has been de-humanized. The old site had more character and more personality. I do not buy the whole invasion of privacy. There was a disclaimer for everyone to agree to, before joining. The old site , for better or worse, put people in more personal situations. Especially when there were disagreements. The new site seems to have toned down interaction among users. Anonymoushttps://www.blogger.com/profile/11865790252722619563noreply@blogger.comtag:blogger.com,1999:blog-2010859453749706440.post-39447311626571033802017-01-15T05:06:10.350-08:002017-01-15T05:06:10.350-08:00Is thus available in the Canadian version. I don&#...Is thus available in the Canadian version. I don't see itAnonymoushttps://www.blogger.com/profile/08196462189737221208noreply@blogger.comtag:blogger.com,1999:blog-2010859453749706440.post-6279184544714571782017-01-14T05:17:23.013-08:002017-01-14T05:17:23.013-08:00This was an excellent review!This was an excellent review!Anonymoushttps://www.blogger.com/profile/02456371032873862212noreply@blogger.comtag:blogger.com,1999:blog-2010859453749706440.post-71028887812516215652017-01-14T00:16:08.471-08:002017-01-14T00:16:08.471-08:00They describe the caveats quite well in the whitep...They describe the caveats quite well in the whitepaper:<br />However, there are several caveats to this<br />direct interpretation. In many cases, individuals from some world-wide population<br />may themselves be highly admixed, obfuscating the time to when this ancestry<br />may have first been introduced. The admixture date provided is based on<br />the ancestry segments estimated by Ancestry Composition, and is, consequently,<br />dependent on their accuracy and specificity for accurate date estimation. Any<br />genealogical history or ancestries that are not well captured by Ancestry Composition<br />estimates may result in poor admixture date estimation, which typically<br />2<br />results in older estimated dates of admixture.<br />Secondly, the admixture date is based on all segments of a particular ancestry.<br />If multiple genealogical ancestors contributed independently, the admixture date<br />may reflect these multiple ancestors in a complex way. If many segments, from<br />independent ancestors, recombine to form longer segments, the estimated admixture<br />date may be shifted towards a more recent date. This is especially likely in<br />the case when segments cover over 50% of a genome. On the other hand, if many<br />older genealogical ancestors contribute discrete, shorter segments, the estimated<br />admixture date may be pushed back, reflecting a weighted average over the multiple<br />ancestors’ generations.Anonymoushttps://www.blogger.com/profile/09810576041285686721noreply@blogger.comtag:blogger.com,1999:blog-2010859453749706440.post-65528445297639976292017-01-13T21:51:01.795-08:002017-01-13T21:51:01.795-08:00I am sure it is a good tool, but 23andMe should be...I am sure it is a good tool, but 23andMe should be prioritising the transfer of those of us not yet on the new set up . It's insulting to produce these new tools for a select few when many of us have been waiting over a year to be transferred.Tim Gattyhttps://www.blogger.com/profile/04237763775725101558noreply@blogger.comtag:blogger.com,1999:blog-2010859453749706440.post-32920488864193552252017-01-13T17:43:26.158-08:002017-01-13T17:43:26.158-08:00Yeah I just checked this out. It said that "Y...Yeah I just checked this out. It said that "You most likely had a grandparent,great-grandparent, or second-great grandparent who was 100% African. This person was likely born between 1860 and 1920."<br /><br />I have no doubt that they're talking about my grandfather who was born in 1898.Anonymoushttps://www.blogger.com/profile/02902302913511775968noreply@blogger.comtag:blogger.com,1999:blog-2010859453749706440.post-5247242074214733442017-01-13T17:08:02.599-08:002017-01-13T17:08:02.599-08:00I appreciate how you bring it all down to layperso...I appreciate how you bring it all down to layperson definitions and explanations. Thank you for all you do. Julie Barnhillhttps://www.blogger.com/profile/04015427786119906466noreply@blogger.comtag:blogger.com,1999:blog-2010859453749706440.post-35124626619295505992017-01-13T16:36:39.158-08:002017-01-13T16:36:39.158-08:00You're absolutely right. My ancestry is almost...You're absolutely right. My ancestry is almost all British, Irish and Western Europe. Their chart says my British ancestors date to 1910-1930....its more like 1620-1770, they just married among the folks from the old country.Anonymoushttps://www.blogger.com/profile/16054564423613450631noreply@blogger.com