Your Roots DNA
niedziela, 17 lipca 2022
My calculator models on Explore Your DNA website
sobota, 11 września 2021
Your Roots DNA - 189 Countries Test
Third EDIT as of 02.03.2024 :
Currently there are already 189 countries in total. The list of still missing countries has been updated below.
EDIT:
Thank you! I've been flooded with requests for my ethnic estimates, I'm going to process all of your requests that I've received by the end of 17.09.2021. After that I'm taking a few months break due to more important obligations.
***
I've gathered reference samples from 189 countries of the world and created a DNA test which can tell you which of these countries you come from. Right now is the accuracy testing phase, therefore everyone who is interested can send me their raw DNA data file to - polandregionsdnaproject@gmail.com - and get a free ethnicity estimate (with a percentage breakdown by country) within 3 days from receiving the file. I appreciate all feedbacks, which can help me improve the test's accuracy. I follow the rules of the General Data Protection Regulation (GDPR) when dealing with customer data.
***
These are the countries that aren't included yet due to the lack of reference samples (if you are from one of these countries, of course you will not score it, but I still invite you to try the test): / updated on 02.03.2024
Africa - Eswatini
Africa - Mayotte
Africa - Sao Tome and Principe
Africa - Seychelles
czwartek, 9 września 2021
Ashkenazi Jewish Y-DNA haplogroups
These are the ten most common Y-DNA lineages among Ashkenazi Jews, and their % frequency:
http://www.historycy.org/index.php?showtopic=208869
Do Central Germans exist in a genetic sense?
The map attached above shows the ethnicities of North-Central Europe during the 9th century AD. As can be seen a large part of modern Germany was at that time inhabited by Slavic-speaking peoples, who were usually called Wends by their German and Danish neighbours. The area which was already at that time German-speaking is known as Old Germany (Altdeutschland).
Within Altdeutschland, there exist just two main clusters of German people. South-West Germans can easily be distinguished from North-West Germans using PCA. Interestingly, Danish populations overlap with North-West Germans.
What distinguishes Altdeutschland from the Ostdeutschland (East Germany) is that East Germans usually harbor high levels of Slavic or Baltic (in case of East Prussia) ancestry. Slavic-speaking populations living between the Elbe and the Vistula rivers, mixed with - and partially were assimilated by - German settlers during the course of the Late Medieval Ostsiedlung:
If you are interested in learning more about the Ostsiedlung, it may be a good idea to first read Helmold's "Slavic Chronicle".
For example these three chapters:
środa, 8 września 2021
The Pyrenees are not a genetic border
Although in the past the Pyrenees were portrayed as a cultural border, separating South-Western Europe - the Iberian Peninsula - from France, it turns out that they have not played the role of a barrier to gene flow. People with autosomal genetic signatures more typical of the Iberian Peninsula than of Central and Northern parts of France, live on both sides of the mountains. Not only in the north-western part of the Pyrenees near the Atlantic Ocean's coast (where the Basque people live on both sides of the border), but also as we follow the course of the mountains in eastern direction, we will keep encountering genetically similar populations on both sides of the Pyreenes, all the way until we reach the coast of the Mediterranean Sea. It can be seen in the PCA graph attached below:
wtorek, 7 września 2021
I'll distinguish British from Scandinavians with 100% accuracy
Often I've been reading on discussion boards, many posts, usually by Northwestern European users, claiming that it is virtually impossible to distinguish British and Irish genetics from Scandinavian. I question that - for a long time I've been saying that they are quite easy to distinguish. I challenge you to send me anonymous raw data files of either 100% British/Irish or 100% Scandinavian customers to my email: polandregionsdnaproject@gmail.com - within 48 hours from receiving, I will reply saying whether the file belongs to a British or a Scandinavian person. In case I lost the challenge, I'll admit that I've been wrong. Of course, do NOT cheat. And I do not guarantee 100% correct results for mixed people (for example 50% British + 50% Scandinavian) - only for unmixed British and unmixed Scandinavians.
Wallace Line and the genetics of Indonesia
Some 20,000 years ago during the Last Glacial Maximum when sea levels were much lower than today, the islands of Borneo, Sumba, Sumatra were connected with the Asian mainland forming a peninsula known as Sundaland; while Australia was connected with Papua New Guinea - forming the continent of Sahul.
Between those two landmasses, there was a bunch of islands known as Wallacea, named so after the British naturalist Alfred Russel Wallace, who in 1859 described these islands as transitional ecozones between those of the former Sundaland and those of the former Sahul. When it comes to animals, west of the Wallace Line - in former Sundaland - Wallace found only organisms related to Asian species, while to the east - he found that a mix of species of Asian and Australian (Sahulian) origins is present.
Interestingly, a similar division on both sides of the Wallace Line can be seen in modern Indonesia when it comes to human genetics and ancestry, in terms of Admixture percentages. Populations living to the west of the Wallace Line harbor basically no any Oceanian (Sahul-related, Papuan-like) admixture. They mainly harbor Malayan-like admixture (which - within Indonesia - peaks in Javanese ethnic groups) as well as other types of Mongoloid (such as East Asian or South-East Asian) admixtures. On the other hand, populations living to the east of the line harbor high levels of Oceanian admixture, similar to those found in Polynesian peoples, or even higher and similar to those found in Fijians or Melanesian peoples.
A map of Indonesia - showing only noise-level Oceanian west of the line:
My calculator models on Explore Your DNA website
I'm back after a long break! I invite everyone to try and test my G25 scaled calculator models on Explore Your DNA project's web...
-
I'm back after a long break! I invite everyone to try and test my G25 scaled calculator models on Explore Your DNA project's web...
-
Third EDIT as of 02.03.2024 : Currently there are already 189 countries in total. The list of still missing countries has been upda...
-
Although in the past the Pyrenees were portrayed as a cultural border, separating South-Western Europe - the Iberian Peninsula -...