Go Back   Family Tree DNA Forums > General Interest > DNA and Genealogy for Beginners

DNA and Genealogy for Beginners Everything you wanted to know about DNA and Genealogy but didn't know where to ask. This board is open to customers and visitors.

Reply
 
Thread Tools Display Modes
  #1  
Old 9th December 2009, 06:48 AM
East-Iberian East-Iberian is offline
Registered User
 
Join Date: Apr 2009
Posts: 25
To what extent are Y-DNA matches shown in "Matches" and "Ancestral Origins"?

Does anybody know to what extent matches are shown in "Matches" and "Ancestral Origins"?

I only got a 12-Marker-Test, till some days ago i only had one 12/12 match. I thought 11/12 would not be shown at all, but now one person with 11/12 showed up.

I guess 10/12 is not shown in matches and Ancestral Origins, because its just not very usefull.

But how about 25, 37 and 67 markers?

Are at this levels also only full matches and one-steps shown or also more-step mutations? Like 35/37 - 37/37 or 61/67 - 67/67?
Reply With Quote
  #2  
Old 9th December 2009, 10:52 AM
Stevo's Avatar
Stevo Stevo is offline
Junior Moderator
 
Join Date: Apr 2006
Location: Virginia
Posts: 4,834
As far as I can tell from my own Ancestral Origins page, 25-marker matches are shown at the exact and one-step levels. 37-marker matches are shown up to four steps away, however. 67-marker matches are shown at up to seven steps away.

It is important to keep an eye on the Ancestral Origins page. Sometimes good matches show up there who do not show up on one's Y-DNA Matches page. That's because not all men sign the permission form allowing their info to be shared with others, and some of them have their User Preferences set so that only members of their surname project can see them.

I had an exact 25-marker match with a man born in England that showed up on my Ancestral Origins page and nowhere else. I emailed FTDNA, they contacted the man, and he graciously emailed me. As a result, I was able to upgrade him to 67 markers and we now have a 65/67 match, albeit with different surnames.

Moral of the story: check your Ancestral Origins page!
Reply With Quote
  #3  
Old 9th December 2009, 12:32 PM
East-Iberian East-Iberian is offline
Registered User
 
Join Date: Apr 2009
Posts: 25
Thank you for that information Stevo!
Reply With Quote
  #4  
Old 10th December 2009, 08:15 AM
Jim Barrett Jim Barrett is offline
FTDNA Customer
 
Join Date: Apr 2003
Location: Timpson, TX
Posts: 2,132
Quote:
Originally Posted by Stevo View Post
It is important to keep an eye on the Ancestral Origins page. Sometimes good matches show up there who do not show up on one's Y-DNA Matches page. That's because not all men sign the permission form allowing their info to be shared with others, and some of them have their User Preferences set so that only members of their surname project can see them.
MUCH of the data in the in the Ancestral Origins database comes from FTDNA's research database, not their customer database.
Reply With Quote
  #5  
Old 10th December 2009, 12:08 PM
Stevo's Avatar
Stevo Stevo is offline
Junior Moderator
 
Join Date: Apr 2006
Location: Virginia
Posts: 4,834
Quote:
Originally Posted by Jim Barrett View Post
MUCH of the data in the in the Ancestral Origins database comes from FTDNA's research database, not their customer database.
It's still a good idea to keep an eye on it for good matches that might otherwise be missed.

Like I said, I found an exact 25-marker match there that appeared nowhere else, a match that ultimately became a 65/67 match.

I don't know how much of a purely research database a commercial enterprise like FTDNA maintains, but obviously not every entry in Ancestral Origins is part of that and nothing else.
Reply With Quote
  #6  
Old 10th December 2009, 12:57 PM
smfgen smfgen is offline
Registered User
 
Join Date: Oct 2009
Posts: 17
Quote:
Originally Posted by East-Iberian View Post
Does anybody know to what extent matches are shown in "Matches" and "Ancestral Origins"?

I only got a 12-Marker-Test, till some days ago i only had one 12/12 match. I thought 11/12 would not be shown at all, but now one person with 11/12 showed up.

I guess 10/12 is not shown in matches and Ancestral Origins, because its just not very usefull.

But how about 25, 37 and 67 markers?

Are at this levels also only full matches and one-steps shown or also more-step mutations? Like 35/37 - 37/37 or 61/67 - 67/67?
Since my uncle's sample is the only one for our surname in the FTDNA Db, he really has no meaningful matches, however since he is R-M222 he has many matches.

His match list for 37 markers contains exact matches + GD-1 thru GD-4. For 67 markers, he has matches shown for GD-1 thru GD-7.
Reply With Quote
  #7  
Old 10th December 2009, 01:33 PM
mkdexter mkdexter is offline
FTDNA Customer
 
Join Date: Dec 2009
Location: Mesa, AZ, USA
Posts: 3,021
what does 65/67 mean in probability numbers

I am curious on your 65/67 match what does the chart look like for probability? For example on a 25/25 the chart shows a 4 generation percentage, an 8 gen % etc. what is the 4,8,12 and 16 percentage? It is much higher than if you just looked at the 25/25 chart?
Reply With Quote
  #8  
Old 11th December 2009, 07:30 AM
Jim Barrett Jim Barrett is offline
FTDNA Customer
 
Join Date: Apr 2003
Location: Timpson, TX
Posts: 2,132
Quote:
Originally Posted by Stevo View Post
Like I said, I found an exact 25-marker match there that appeared nowhere else, a match that ultimately became a 65/67 match.
Since FTDNA doesn't provide any identifying information, other than country and a possible comment, in the Ancestral Origins I am curious how you know this match was the same person.

Quote:
Originally Posted by Stevo View Post
I don't know how much of a purely research database a commercial enterprise like FTDNA maintains, but obviously not every entry in Ancestral Origins is part of that and nothing else.
I don't know the percentages but it is enough that they say "the people whom you match or nearly match from both our research and customer databases."
Reply With Quote
  #9  
Old 12th December 2009, 12:48 AM
Stevo's Avatar
Stevo Stevo is offline
Junior Moderator
 
Join Date: Apr 2006
Location: Virginia
Posts: 4,834
Quote:
Originally Posted by Jim Barrett View Post
Since FTDNA doesn't provide any identifying information, other than country and a possible comment, in the Ancestral Origins I am curious how you know this match was the same person.
Did you read what I wrote?

I had FTDNA contact the man, the one I matched in Ancestral Origins. He, in turn, emailed me.
Reply With Quote
  #10  
Old 12th December 2009, 06:28 AM
Jim Barrett Jim Barrett is offline
FTDNA Customer
 
Join Date: Apr 2003
Location: Timpson, TX
Posts: 2,132
Quote:
Originally Posted by Stevo View Post
Did you read what I wrote?

I had FTDNA contact the man, the one I matched in Ancestral Origins. He, in turn, emailed me.
Sorry, I missed that part.
Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 04:26 PM.


Family Tree DNA - World Headquarters

1445 North Loop West, Suite 820
Houston, Texas 77008, USA

Phone: (713) 868-1438 | Fax: (832) 201-7147
Copyright 2001-2010 Genealogy by Genetics, Ltd.
Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.