Help:DNA Confirmation

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Have you taken a yDNA or auDNA test? Have you found matches and know how those matches are related to you?

On WikiTree you may be able to use those matching tests to strengthen and support your traditional genealogy and mark some parental relationships "confirmed with DNA" DNA-confirmed.gif based on those matching DNA tests, keeping in mind that confirmed in the DNA world means "strongly supported" not necessarily "proven".

The relationship status of a parent should not be marked "confirmed with DNA" unless you have supplied sourced documentation for the complete ancestral lineage to each of the test takers from their Most Recent Common Ancestor (MRCA).

Contents

What do I need to mark a relationship as Confirmed with DNA?

For each parental relationship marked confirmed with DNA" you must enter a DNA confirmation statement on the child’s profile that includes the following information:

  • Paternal or maternal (or both) relationship confirmed by the matching tests.
  • Relationship of the test takers to one another.
  • Most recent common ancestor(s) (MRCAs) of the test takers.
  • Relationship of each test taker to the MRCA(s).
  • Company where the two were matched, including the amount of shared DNA.
  • At least one of the test takers must have added the DNA test information to his or her profile, and the profile must have a privacy level of at least ‘private with public biography and family tree’. One way to find others who may aid in confirmation is to check your Ancestor Confirmation Aid.
  • Do not include non-public personal information for living people who do not have their information displayed on WikiTree.

DNA confirmation statements should be included in a section headed === DNA ===, placed just above the == Sources == section.

If there isn’t a proper source citation, the "confirmed with DNA" relationship status should be changed, by you or by someone else.

One-to-One FTDNA Family Finder Confirmation

Follow the General Confirmation Instructions above.

Is the relationship of the two test takers, through traditional genealogy, third cousin or closer, and are the expected average DNA sharing amounts and the predicted relationship range in Family Finder "Matches" in approximate agreement with the relationship?

If yes, and if the privacy levels of the profiles allow it, you should be able to use the WikiTree Relationship Finder to find how the two test takers are related, the MRCA(s) for the two test takers, and which parental relationships can be marked "confirmed with DNA". On Family Tree DNA’s Family Finder Matches page you can see the shared cM and relationship range. Use the Family Tree DNA Chromosome Browser to determine the number of shared segments.

If your match is not a third cousin or closer, see Autosomal Triangulation on WikiTree.

Here is an example of what to add to the biography, just above the == Sources == section, of each profile with a person’s parent(s) marked ‘confirmed with DNA’ using Family Finder matches:

=== DNA ===
Paternal relationship is confirmed by a Family Finder test match between [[Johnson-18438|Kay (Johnson) Wilson]] and her paternal aunt [[Johnson-17543|Dorothy (Johnson) Hughes]]. Their MRCAs are [[Johnson-17545|O.V. Johnson]] and [[Murdoch-292|Grace Murdoch]], grandparents of [[Johnson-18438|Kay (Johnson) Wilson]] and parents of [[Johnson-17543|Dorothy (Johnson) Hughes]]. Predicted relationship from FTDNA: Niece/Aunt, based on sharing 1958 cM across 49 segments.

One-to-One 23andMe Confirmation

Follow the General Confirmation Instructions above.

Is the relationship of the two test takers, through traditional genealogy, third cousin or closer, and are the expected average DNA sharing amounts and the predicted relationship in 23andMe’s TOOLS>DNA Relatives in approximate agreement with the relationship?

If yes, and if the privacy levels of the profiles allow it, you should be able to use the WikiTree Relationship Finder to find how the two test takers are related, the MRCA(s) for the two test takers, and which parental relationships can be marked ‘confirmed with DNA.’ On 23andMe’s TOOLS>DNA Comparison you can find the amount of shared cM.

If your match is not a third cousin or closer, see Autosomal Triangulation on WikiTree.

Here is an example of what to add to the biography, just above the == Sources == section, of each profile with a person’s parent(s) marked ‘confirmed with DNA’ using 23andMe matches:

=== DNA ===
Maternal relationship is confirmed by a 23andMe test match between [[Whitten-1|Chris Whitten]] and [[Nally-4|Rebecca (Nally) Syphers]], first cousins once removed. Their MRCAs are [[Bartlett-4|Hollis Bartlett Sr.]] and [[Storrs-2|May Storrs]], the great grandparents of [[Whitten-1|Chris Whitten]] and grandparents of [[Nally-4|Rebecca (Nally) Syphers]]. Predicted relationship from 23andMe: First to Second Cousin, based on sharing 498 cM across 21 segments.

One-to-One AncestryDNA Confirmation

Follow the General Confirmation Instructions above.

Is the relationship of the two test takers, through traditional genealogy, third cousin or closer, and are the expected average DNA sharing amounts and the stated possible range of the match at AncestryDNA in approximate agreement with the relationship?

If yes, and if the privacy levels of the profiles allow it, you should be able to use the WikiTree Relationship Finder to find how the two test takers are related, the MRCA(s) for the two test takers, and which parental relationships can be marked "confirmed with DNA". To find the shared cM and segments see AncestryDNA’s amount of shared DNA feature.

If your match is not a third cousin or closer, see Autosomal Triangulation on WikiTree.

Here is an example of what to add to the biography, just above the == Sources == section, of each profile with a person’s parent(s) marked "confirmed with DNA" using AncestryDNA:

=== DNA ===
Paternal relationship is confirmed by an AncestryDNA test match between [[Whitten-1|Chris Whitten]] and his second cousin. Their MRCAs are their great grandparents, [[Bartlett-4|Hollis Bartlett Sr.]] and [[Storrs-2|May Storrs]]. Predicted relationship from AncestryDNA: 2nd Cousins, based on sharing 150.3 cM across 9 segments; Confidence: Extremely High.

One-to-One MyHeritage Confirmation

Follow the General Confirmation Instructions above.

Is the relationship of the two test takers, through traditional genealogy, third cousin or closer, and are the expected average DNA sharing amounts and the predicted relationship range in MyHeritage “DNA Matches” in approximate agreement with the relationship?

If yes, and if the privacy levels of the profiles allow it, you should be able to use the WikiTree Relationship Finder to find how the two test takers are related, the MRCA(s) for the two test takers, and which parental relationships can be marked "confirmed with DNA".

If your match is not a third cousin or closer, see Autosomal Triangulation on WikiTree.

Here is an example of what to add to the biography, just above the == Sources == section, of each profile with a person’s parent(s) marked ‘confirmed with DNA’ using MyHeritage matches:

=== DNA ===
Maternal relationship is confirmed by a MyHeritage test match between [[Brown-8212|Abby Glann]] and her 2nd cousin once removed. Their MRCAs are [[Fraaken-1|Franklin Fraaken]] and [[Olds-43|Grace Olds]], the 2nd great grandparents of [[Brown-8212|Abby Glann]] and the great grandparents of her cousin. Predicted relationship from MyHeritage: 1st cousin twice removed to 2nd cousin twice removed, based on sharing 143.1 cM across 8 segments.

One-to-One GEDmatch Confirmation

Follow the General Confirmation Instructions above.

Is the relationship of the two test takers, through traditional genealogy, third cousin or closer, and are the expected average DNA sharing amounts and GEDmatch’s One-to-one utility estimate of the number of generations to the MRCA in approximate agreement with the relationship?

If yes, and if the privacy levels of the profiles allow it, you should be able to use the WikiTree Relationship Finder to find how the two test takers are related, the MRCA(s) for the two test takers, and which parental relationships can be marked "confirmed with DNA". Use GEDmatch’s One-to-One utility to determine the generations to MRCA, shared cM and the number of segments shared.

If your match is not a third cousin or closer, see Autosomal Triangulation on WikiTree.

Here is an example of what to add to the biography, just above the == Sources == section, of each profile with a person’s parent(s) marked "confirmed with DNA" using GEDmatch:

=== DNA ===
Paternal and maternal relationships are confirmed by a GEDmatch test match between [[Johnson-18438|Kay (Johnson) Wilson]] GEDmatch T596586 and her sister [[Johnson-18997|Lynn (Johnson) Andrews]] GEDmatch T408316. Their MRCAs are their parents [[Johnson-17544|Douglas Johnson]] and [[Smith-38566|Phyllis Smith]]. Estimated number of generations to MRCA = 1.2, based on sharing 2654.8 cM across 46 segments.

Y-Chromosome Confirmation

Follow the General Confirmation Instructions above.

Each of the matching tests must be for at least 37 markers. If their profiles are accessible to you, use the WikiTree Relationship Finder to find how the two test takers are related, the MRCA(s) for the two test takers, and which parental relationships can be marked "confirmed with DNA". On Family Tree DNA’s yDNA Matches page, click on the red TiP icon for a TiP report. Set it to display a value at every generation. Does the Family Tree DNA TiP report predict a similar number of generations between the test takers as traditional genealogy?

If yes, here is an example of what to add to the biography, just above the == Sources == section, of each profile with a father marked "confirmed with DNA" using yDNA:

=== DNA ===
Paternal relationship is confirmed through Y-chromosome DNA testing. [[Smith-44676|William Waugh Smith]], FTDNA kit #95454, and his 6th cousin once removed, [[Smith-81508|Len Smith]], FTDNA kit #216226, match at a Genetic Distance of 2 on 67 markers thereby confirming their direct paternal lines back to their MRCA [[Smith-15895|Thomas Smith]]. FTDNA indicates that the probability the two share a common ancestor within the last 7 generations is 91.73% and within the last 8 generations is 94.73%.

For X and mtDNA confirmations, see Advanced DNA Confirmations.

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This page was last modified 20:52, 29 August 2018. This page has been accessed 52,101 times.