{"id":581,"date":"2024-03-17T16:43:12","date_gmt":"2024-03-17T15:43:12","guid":{"rendered":"https:\/\/cvraiz.com\/?page_id=581"},"modified":"2024-03-18T00:44:41","modified_gmt":"2024-03-17T23:44:41","slug":"23andme-surveys","status":"publish","type":"page","link":"https:\/\/cvraiz.com\/?page_id=581","title":{"rendered":"23andme surveys"},"content":{"rendered":"

Ever since I got my first DNA test results in 2010<\/a>\u00a0I have been researching my Cape Verdean roots from several angels<\/strong>.<\/span> Of course everything starts with personal genealogy<\/a>. But for deeper understanding I also take into account: population genetics, historical demography and cultural retention. In 2014 I created a website exactly with this purpose in mind: CVRAIZ: Specifying The African Ethnic Origins for Cape Verdeans.<\/a> In that same year I also started a separate blog called Tracing African Roots<\/em><\/strong>.<\/a> I have used this blog for taking a broader perspective. Among other things also aiming to\u00a0apply a comparative analysis to see how Cape Verde fits in the broader picture of the Afro-Diaspora.<\/p>\n

Right from the start in 2010 I have been actively engaging with other DNA testers on online forums, Facebook and also by way of sharing profiles etc.. This is how I was able to have access to an ever growing collection of Cape Verdean personal DNA test results. As well as from other parts of the Afro-Diaspora and mainland Africans. This has given me an invaluable opportunity to explore the regional African origins of people from across the Afro-Diaspora. And additionally also to gain greater insight into Cape Verdean genetics by way of survey-based research<\/span><\/strong>.1<\/sup><\/p>\n

Table 1<\/strong> (click to enlarge)<\/p>\n

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\"\"<\/a>
Source<\/strong>: Trans-Atlantic Slave Trade Database<\/a> (2020) (www.slavevoyages.org) This overview clearly highlights how the<\/strong><\/span> <\/span>1500’s<\/span> are fundamental for tracing back most of the African roots of Cape Verdeans<\/span><\/strong>.\u00a0<\/em><\/figcaption><\/figure>\n

***<\/span><\/p>\n<\/div>\n

I discovered the indispensable\u00a0Slave Voyages website<\/a> around the same time I received my own 23andme results in 2010. And ever since I have often relied heavily on the\u00a0Trans-Atlantic Slave Trade Database<\/a>\u00a0as some sort of baseline. To\u00a0establish historical plausibility within my ongoing research efforts<\/strong><\/span> on how personal DNA test results (regional admixture & African DNA matches) of Cape Verdeans and other Afro-Diasporans may already be in alignment with historical expectations.2<\/sup><\/p>\n

On this page I will merely post a brief summary of my main surveyfindings based on 23andme results.3 <\/sup>Please read the original blogposts for more detailed discussion, incl. methodology and relevant disclaimers<\/span><\/strong>:<\/p>\n

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  1. Ethnic group matches on 23andme for 50 Cape Verdeans<\/a>\u00a0(Fonte Felipe, 2022)<\/li>\n
  2. 100 Cape Verdean 23andme results<\/a>\u00a0(Fonte Felipe, 2021)<\/li>\n
  3. 23andme\u2019s African breakdown put to the test: Afro Diaspora edition!<\/a> (Fonte Felipe, 2021)<\/li>\n
  4. Countries of Ancestry tool (IBD matching)<\/a> (Fonte Felipe, 2015)<\/li>\n<\/ol>\n

    ***<\/p>\n

    1) Ethnic group matches on 23andme for 50 Cape Verdeans (2022)<\/span><\/strong><\/h2>\n

    link<\/a><\/p>\n

    Figure 1.1 <\/strong>(click to enlarge)<\/p>\n

    \"CV<\/a><\/p>\n

    Source<\/strong>: 23andme.\u00a0This screenshot features the so-called\u00a0genetic group<\/a>\u00a0results of a Cape Verdean.<\/em>\u00a0Realistically speaking\u00a0practically all Cape Verdeans should have both Mandinga and Fula\/Wolof lineage<\/span>,<\/strong>\u00a0due to endogamy and shared African roots. In fact the \u201cSenegambian & Guinean\u201d ancestors of this person and other Cape Verdeans should also include other additional ethnic origins as well. Such as\u00a0Sereer, Balanta, Jola<\/a>\u00a0etc.. Just because these groups are undetected or not covered yet by 23andme\u2019s database doesn\u2019t mean it couldn\u2019t be there!<\/em><\/p>\n

    ____________________<\/p>\n

    “Earlier this month 23andme released its most recent update which could very well signal the start of a truly game-changing feature for zooming into\u00a0ethno-linguistic\u00a0African lineage<\/strong><\/span>. Going beyond the broad regional admixture categories such as \u201cNigerian\u201d and \u201cSenegambian & Guinean\u201d. Which are already quite useful in fact. However by now providing much more granularity 23andme is really stepping up its game! For more details read this announcement by 23andme:<\/em><\/p>\n