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Post by kantmakm on May 16, 2016 15:03:53 GMT -5
I would encourage anyone who has tested with 23&me to load their genome into wegene.com - it appears to provide much better information ethnic and medical information specific to those with east asian ancestry. Also, it's free for now, but I'm guessing once they have a critical mass in their databases, it will be a for-fee service like at FTDNA! The attached images show the difference in ethnic break down for the same person on wegene vs. 23&me.
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Post by twnxn on Jun 30, 2016 23:27:16 GMT -5
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Post by damon on Aug 31, 2016 22:22:37 GMT -5
I transferred my 23andme and AncestryDNA results to wegene and got very different results. Some population groups were missing from one. I also transferred my mother's and father's DNA to wegene. Each had a number of population groups show up, but my mother was missing northern Han while my father had 20+% of northern Han. Each had around 20-25% Dai. When I linked my sister's DNA, her result just showed 99% southern Han with no Dai. The percentages don't add up. I question the accuracy of the results.
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Post by Doug 周 on Sept 4, 2016 15:07:23 GMT -5
damon, This touches on rather controversial stuff. The conventional wisdom is that your DNA is made up of the DNA from everyone in your genealogy. However, the consumer DNA companies do not measure your whole genome. That process and analysis costs about U$3000. Consumer companies only report the presence of certain snippets of your genome for areas of interest to THE company. These companies earn their revenue not by their product's purchase by family historians studying their DNA. They make their money by comparing the genetic profile of peoples with targeted medical symptoms and disease, trying to find a DNA focused cure or medication to treat the symptom. For this they need a large database and good questionnaires and surveying techniques. In the USA, the FDA (Federal Drug Administration) proscribed 23&Me selling DNA testing directly to consumers interested in health benefits. Therefore, the only group they can market are the family historians. This article explains why cultures, race, and ethnicities are 'missed' by DNA testing: Everyone Has Two Family Trees – A Genealogical Tree and a Genetic Tree Hence, 4-5 generations out, there is a chance the DNA of your relatives (in your genealogical tree) will be missed by your genetic tree. DNA testing still is at it's infancy for consumer genetic evaluation. Despite that, I still look forward to DNA testing for 'cousin bait' IMHO
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Post by aswatama on Feb 28, 2017 8:52:04 GMT -5
Autosomal DNA is complicated, then the admixture analysis often very subjective. Y-DNA is more simple. Do any of you have interest to get Y-DNA test ?
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Post by Doug 周 on Feb 28, 2017 10:02:39 GMT -5
My 23&Me measures the Y-chromosome. Just that the new (USA) display/interface does not display it well. A forum member uses an older interface (Australian) and you can see the relationships of clan members from his village quite well.
My goal is to find a site with more Chinese samples. Unsure if that is available yet.
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Post by aswatama on Mar 3, 2017 3:46:40 GMT -5
My 23&Me measures the Y-chromosome. Just that the new (USA) display/interface does not display it well. A forum member uses an older interface (Australian) and you can see the relationships of clan members from his village quite well. My goal is to find a site with more Chinese samples. Unsure if that is available yet. 23andme multiarray test only test very few Asian Y-DNA haplogroup SNPs. Even if they test more Y-DNA SNPs, it still insufficient to make paternal connection because Y-SNPs is usually use to know about deep patrilineal line for anthroplogy purpose (except Next Generation Sequence technology which is examine millions of positions in Y-Chromosome then is very useful to tracking close paternal relatives). For genealogy purpose people usually compare Y-STRs, which is can confirm as close as 4 generation. In mainland china and taiwan there are commercial DNA testing company that focus on Y-DNA. But I have to say their database growth is slow. About autosomal DNA testing company with more Chinese samples, I think we can't expect to get it in the near future. Most Chinese (in China) already knew about their families and relatives. Unlike American, they knew their root. So DNA testing is not their priority. I think you will get difficulty to convince people in China to get DNA test. Of course there is DNA test that recently gain a little bit popularity in China, but that is paternity DNA test, not Genealogy DNA test.
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Post by aswatama on Mar 4, 2017 2:27:19 GMT -5
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Post by 1geewong on Jun 4, 2017 14:32:31 GMT -5
Since there hasn't been a message on this thread for a while, I'd like to make a plea. I'm managing several DNA tests of relatives in hopes of finding a better understanding of our Chinese ancestry. I've found that a loss of connection between US-born Chinese and their ancestors is very common. "Adoption" appears to be very common with subsequent further loss on connections. My plea is for those of you with better known ancestry and connections to your Chinese relatives PLEASE DNA test and upload your results to shared sites such as GEDmatch.com. Having more samples and having samples from those that know their ancestry is sorely needed by many in the community. Thanks!
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