Go Back   Family Tree DNA Forums > Paternal Lineages (Y-DNA) > BIG Y and SNP Discovery

BIG Y and SNP Discovery This area is for talk about BIG Y results.

Reply
 
Thread Tools Display Modes
  #1  
Old 9th December 2017, 10:47 AM
Dawn Ellis Dawn Ellis is offline
FTDNA Customer
 
Join Date: Apr 2006
Posts: 40
Big Y matches

My members have just started doing Big Y tests so I don't really know much about it.

One of my project members, who does not share the surname with the group, has 7 Big Y matches, none of which is our surname. His matches are of 5 different surnames one a variant of the other. I am thinking he should give up on our surname and concentrate on these matches?
Reply With Quote
  #2  
Old 10th December 2017, 07:33 AM
Svein Davidsen Svein Davidsen is offline
FTDNA Customer
 
Join Date: Jun 2005
Location: Switzerland and France
Posts: 139
If your "odd" member has any Scandinavian paternal ancestry this would be quite normal. The traditional Scandinavian naming convention change surname every generation.
Reply With Quote
  #3  
Old 11th December 2017, 08:43 PM
The_Contemplator The_Contemplator is offline
FTDNA Customer
 
Join Date: Jun 2015
Posts: 835
With such a small group of matches, it is hard to draw good conclusions. His paternal line could have changed surnames more than once. A lot can happen even in the last few hundred years, let alone further back. His Big Y matches could still be very distant and therefore not relevant for what he is looking for.

One general indicator is the number of unnamed variants he has. If he has a handful or less his matches my be more recent. If he has like 10, 20, etc. The matches are distant. New variants (SNPs) don't come out every generation, and some variants may be unreliable. Basically, it depends.
Reply With Quote
  #4  
Old 12th December 2017, 06:25 AM
Jim Barrett Jim Barrett is offline
R-BY39877
 
Join Date: Apr 2003
Location: Timpson, TX
Posts: 2,279
My cousin's Big-Y "Matching" page lists R-P312, R-Y18211, R-BY12146, R-BY12147 and R-BY12150. Each one followed by a value of 1.

His only named match has R-P312, R-Y18211, R-BY12146, R-BY12147 and R-BY12150. Each one followed by a value of 1, except R-P312 which is followed by 2.

If his match has 2 matches at R-P312, why doesn't my cousin?
Reply With Quote
  #5  
Old 12th December 2017, 07:08 PM
Armando Armando is offline
FTDNA Customer
 
Join Date: Jun 2009
Posts: 1,702
Quote:
Originally Posted by Dawn Ellis View Post
My members have just started doing Big Y tests so I don't really know much about it.

One of my project members, who does not share the surname with the group, has 7 Big Y matches, none of which is our surname. His matches are of 5 different surnames one a variant of the other. I am thinking he should give up on our surname and concentrate on these matches?
Are you also saying the others don't show as matches from the BigY testing but that they show as matches to each other? If so, STR testing of 67 or more markers should have already indicated that they don't have a common ancestor in a genealogical timeframe which is when surnames were more common in western Europe outside of Scandinavia. Iberia is also a bit different at times but I doubt that you are talking about a Scandinavian or Iberian surname.

Last edited by Armando; 12th December 2017 at 07:13 PM.
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 On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 11:35 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.