系統DNA検査
As discussed above, autosomal tests usually report the ethnic proportions of the individual. These attempt to measure an individual's mixed geographic heritage by identifying particular markers, called ancestry informative markers or AIM, that are associated with populations of specific geographical areas. Geneticist Adam Rutherford has written that these tests "don’t necessarily show your geographical origins in the past. They show with whom you have common ancestry today."
The haplogroups determined by Y-DNA and mtDNA tests are often unevenly geographically distributed. Many direct-to-consumer DNA tests described this association to infer the test-taker's ancestral homeland.
Common concerns about genealogical DNA testing are cost and privacy issues. Some testing companies retain samples and results for their own use without a privacy agreement with subjects.
Autosomal DNA tests can identify relationships with good accuracy out to about 2nd cousin, but they have limitations. In particular, transplants of stem cell or bone marrow will produce matches with the donor. In addition, identical twins (who have identical DNA) will share higher amounts of DNA with a greater range of relatives.
Testing of the Y-DNA lineage from father to son may reveal complications, due to unusual mutations, secret adoptions, and false paternity (i.
“When oral history meets genetics”. The Jerusalem Post. http://www.jpost.com/Features/In-Thespotlight/When-oral-history-meets-genetics 2013年6月14日閲覧. "Greenspan, born and raised in Omaha, Nebraska, has been interested in genealogy from a very young age; he drew his first family tree at age 11."
↑ Bradford, Nicole (2008年2月24日). “Riding the 'genetic revolution'”. Houston Business Journal. http://www.bizjournals.com/houston/stories/2008/02/25/smallb1.html?page=all 2013年6月19日閲覧。
↑ Hamilton, Anita (2008年10月29日). “Best Inventions of 2008”. Time. http://www.time.com/time/specials/packages/article/0,28804,1852747_1854493,00.html 2012年4月5日閲覧。
↑ “About Us”. 23andMe. 2018年6月10日閲覧。
↑ “Autosomal DNA testing comparison chart”. International Society of Genetic Genealogy Wiki.