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Geneanet DNA: The DNA Matches’ Levels of Accuracy Have Been Improved!

Posted by Jean-Yves on Sep 22, 2020

Over the last days, all the DNA matches have been recalculated and many new relationships have been found. We have also improved the DNA matches levels of accuracy.

Go to the menu “View DNA matches”.

In the list of DNA matches, there were only two levels of accuracy shown as a green and a red dots.

An intermediate level has been added, shown as an orange dot.

• A green dot is for a high accuracy,

• An orange dot is for a medium accuracy: shared DNA suggests a distant relationship but it can be due to coincidence,

• A red dot is for a low accuracy: shared DNA does not allow to say if it’s a distant relationship or if it’s due to coincidence.

We also have added an option to sort DNA matches by level of accuracy. This option is available at the top right of the list of DNA matches.

How this intermediate level of accuracy has been determined?

We found that many DNA matches had a low level of accuracy (red dot) while some of them were undoubtedly DNA relationships. The goal was to show up these results to help you in your genealogy research. We have decided to filter the DNA segments shared by members, some of them being less qualitative than others.

Some DNA segments are shared by a large number of people from the same population group. These segments are called IBP (Identical by Population). They generate a lot of relationships between individuals which are certain but not very significant in genetic genealogy. With the DNA data imported to Geneanet, we could identify a number of these segments and take them into account for the DNA matches levels of accuracy. Thus, when all DNA segments shared by two persons are IBPs, the relationship has a low accuracy. But when at least one segment of the DNA shared by two persons is not an IBP, the relationship has a medium accuracy.

Keep in mind that whatever the color of the dot, the relationship may be certain or inexistent (particularly for shared DNA less than 0.7%). The three levels of accuracy we are proposing are intended to help you focusing on interesting relationships, from a genealogical point of view.

The best way to verify a DNA match is to have your own family tree on Geneanet so you can compare it with your potential relatives. Geneanet DNA provides many options for discovering your common ancestors:

• Some suggestions of common ancestry may show up the family names and place names you share with other Geneanet members.

• If you are a Premium member, you can directly view the common ancestors you share with other Geneanet members.

Some new options are planned to allow you to go further in your genealogy research.

Have some wonderful discoveries!

View your DNA matches

Go further in your genealogy research with your DNA

Please post your questions in our forum

2 comments

Is there an option for dna analysis software or download of dna matches ( with the approval of the match of course)?


At low match strength you might be unlikely to have even surnames in common let alone an actual person. And you might have to extenf your match’s tree to find the link!!


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