Yesterday I posted a link to an article in the UK Guardian, “The genes that build America” in which the author attempted to summarize some of the recent controversial topics in genealogical research, including DNA testing.
For at least one of my readers, the article represented everything that is wrong with DNA testing, specifically the assignment of racial/ethnic percentages based on the results of autosomal testing.
In the past, I’ve tried to be as impartial as possible when discussing autosomal testing. As I’ve learned, however, being impartial can also be unfair and misleading. So, I’ve decided to get a little more personal and share my thoughts about autosomal testing.
In a single sentence, autosomal testing is simply too new and underdeveloped to be of much informative use for genealogists or the average public, at least in its current stage. This statement, I hope, will be completely incorrect in a few years as whole genome sequencing becomes affordable. Assigning percentages (as autosomal tests do) will only work when the entire genome can be sequenced and examined and analyzed. Short of whole genome sequencing (and maybe comprehensive SNP testing – as in millions of SNPs), I don’t believe that autosomal is worth the effort.