Search for content in message boards

Comparing Y-DNA results

Comparing Y-DNA results

Posted: 4 Jun 2013 12:25AM GMT
Classification: Query
Edited: 4 Jun 2013 1:37AM GMT
Surnames: Clingman,Klingman
My husband had a Y-46 test done through Ancestry DNA. We hoped to be able to compare his results with the results of four other men who share the same surname (Clingman or Klingman) and a high probability of a common male ancestor. Their tests were done several years ago by GeneTree and I have copies of their test results. We specifically chose Ancestry for my husbands test since Ancestry bought out GeneTree. I thought I would be able to compare my husband's results to these other men; however there appears to be no way to compare the GeneTree test results with the Ancestry Y-DNA test results. The numbers just don't correlate.

Has anyone else encountered this problem? Is there a way to convert the results from one test so they can be compared to test results from another company?

Re: Comparing Y-DNA results

Posted: 4 Jun 2013 12:59AM GMT
Classification: Query
Try uploading the results to Yseach.com. And check this link for conversion:
http://dgmweb.net/DNA/General/ADNA_FTDNA.html

Jim

Re: Comparing Y-DNA results

Posted: 4 Jun 2013 4:09PM GMT
Classification: Query
Edited: 5 Jun 2013 12:46PM GMT
Thanks so much for replying so quickly with you suggestions. I appreciate your help. This DNA stuff is worse than studying Greek.

Re: Comparing Y-DNA results

Posted: 3 Jul 2013 1:44PM GMT
Classification: Query
I've had testing for family members done through FTDNA, and so have been used to reading the Y-STR values. Recently, though, I had my son tested through 23andMe, and they only test SNPs on the Y-chromosome, and don't give STR values. He and his dad have results of R1a, regardless of laboratory. My other son had testing through Sorensen before, and I saw that he had 1 mutation STR difference from his dad, but I can't figure out how to take even the raw data from both FTDNA and 23andMe and compare them as apples-to-apples, you know? Any suggestions??
I like a lot of the other features that 23andMe provides, and would recommend it for other people researching our same lines, but if I can't compare to existing FTDNA results, then it may be a waste to go through 23andMe for the other extended cousins, you know??

Re: Comparing Y-DNA results

Posted: 3 Jul 2013 3:08PM GMT
Classification: Query
You can transfer your 23 and Me results to FTDNA for a fee. Look at their products page. That will allow you to compare autosomal results, but not YSTRs, since they are not tested by 23 and Me.

R1b is a very general haplogroup. If you want the deepest ancestry, National Geographic's Geno 2.0 tests the most SNPs.

Jim

Re: Comparing Y-DNA results

Posted: 5 Aug 2013 3:55PM GMT
Classification: Query
It is possible that the Genetree results are in an older nomenclature. What is the date on the results? There were actually two versions of Genetree. The first was merged into Relative Genetics. The second was started after Ancestry took over Relative Genetics in 2007. The second's numbers should be the same, except possibly Y-GATA-H4, which might be around 22, whereas it should be around 12.

If done before Aug 2007, 6 or more numbers could be off. The most conspicuous would be DYS452. It would be around 11, instead of 30.

Re: Comparing Y-DNA results

Posted: 5 Aug 2013 5:29PM GMT
Classification: Query
They are entirely different tests, so the results cannot be compared. You can have the cousins take one or both types of test.

They serve different purposes. The Y-DNA tests (FTDNA and Ancestry) follow the all-male lineage, as do surnames for most of the lineages we study. The results (haplotypes)for living males will be similar to their male-line ancestors, since the Y-DNA is passed from father to son with only infrequent mutations. Thus, we can group males with the same surname (or variant) who might share a common ancestor and eliminate those who cannot. This is especially useful for checking the validity of family trees, which normally follow the surname.

Autosomal tests (23andMe, Family Finder at FTDNA and AncestryDNA) test all the lineages in a pedigree. Because the number of ancestors contributing DNA increases rapidly as we go back in time, the matches are accurate only back about 5 generations.

The firms post lists of close matches. Researchers can contact them to see if they can identify a common ancestor. However, the response rate at 23andMe is low, because so many tested for the health information. Even though it has a smaller database, the number of responses at FTDNA appears to be about the same. It also has better genealogical tools.

He can save some money by transferring his 23andMe results to FTDNA, but, with their new pricing, the savings might not be worth the trouble. However, it is a good idea to be in all three databases to maximize the number of matches.

Re: Comparing Y-DNA results

Posted: 5 Aug 2013 6:22PM GMT
Classification: Query
Edited: 5 Aug 2013 6:25PM GMT
I assume that your other son tested at SMGF.org and not one of the commercial firms that also used Sorenson.

If he is 1 higher than his father on Y-GATA-H4, but matches him on DYS442, he may not have the latest SMGF.org nomenclature. The most obvious difference is that DYS452 will be around 11, whereas it should be around 30.

You can check by searching the database with his results to see if he matches himself. Choose NIST or Ancestry.com as the lab and do a surname search. To convert to FTDNA, simply switch the lab to FTDNA.

Let me know of any marker mismatches and I will post the corrections.

It is also a good idea to save the search.

Re: Comparing Y-DNA results

Posted: 22 Jan 2014 7:39AM GMT
Classification: Query
This post was deleted by the author on 28 Feb 2015 2:58PM GMT

Re: Comparing Y-DNA results

Posted: 22 Jan 2014 9:37AM GMT
Classification: Query
Edited: 22 Jan 2014 10:00AM GMT
Even though we call it an autosomal test, 23andMe also tests SNPs on the X and Y chromosomes, as well as mtDNA. You can see the SNPs that were derived in its Haplogroup Mapper under Ancestry Tools. The defining (most recent) SNP is listed first.

They use an obsolete alphanumeric nomenclature. In fact, this type of nomenclature is obsolete. FTDNA and most genetic genealogists use the format (major haplogroup)-(defining mutation). Your brother would then be R-L48. You can then go to the ISOGG site and look up the defining mutation to get the current alphanumeric notation, if desired. Note that some SNPs have more than one name.

http://www.isogg.org/tree/
per page

Find a board about a specific topic