Go Back   Family Tree DNA Forums > Paternal Lineages (Y-DNA) > Y-DNA Haplogroups & SNPs Basics

Y-DNA Haplogroups & SNPs Basics This forum is for those new to personal ancestry testing on the direct paternal line with Y-DNA SNP tests. All may view this forum, but you must register and sign in to post.

Reply
 
Thread Tools Display Modes
  #1  
Old 2nd February 2015, 11:51 AM
Gus Gus is offline
FTDNA Customer
 
Join Date: Jan 2015
Posts: 1
23andMe Haplogroup vs Y-STR Predicted Haplogroup

Could anyone tell me which is more accurate - 23andMe predicted haplogroup or a Y37 FTDNA predicted haplogroup? It's my understanding SNP's can only confirm a terminal haplogroup so I'm wondering if in fact 23andMe is more accurate as it uses SNP's.
Reply With Quote
  #2  
Old 2nd February 2015, 01:33 PM
MMaddi MMaddi is offline
yDNA: R-CTS2509; mtDNA: T2e
 
Join Date: Jul 2005
Location: Houston, TX
Posts: 3,391
Since 23andMe actually tests SNPs, as you point out, in many, if not most cases, it will give you a more downstream haplogroup assignment than an FTDNA prediction based on STRs. FTDNA is predicting (not actually testing SNPs), so their predictions are more conservative and will usually be upstream of the actual most downstream known SNP.

However, remember that 23andMe assigns haplogroups based on known SNPs and the haplotree from 2010. There's been a tremendous explosion in knowledge of SNPs and changes in the haplotree since then. That's due to results from the Geno 2.0 and Big Y tests.

The bottom line is that if you're seriously interested in knowing your most downstream SNP, you'll have to do more testing at FTDNA. The first step is to join the appropriate haplogroup project, based on your predicted haplogroup or, if the haplogroup project accepts it, your 23andMe haplogroup assignment. Then the project administrators can advise you about how to proceed in SNP testing, based on their knowledge of the latest developments from Big Y results in their haplogroup/subclade.
Reply With Quote
  #3  
Old 2nd February 2015, 03:39 PM
Armando Armando is offline
FTDNA Customer
 
Join Date: Jun 2009
Posts: 1,702
The Deep Clade test I took in 2011 was more informative than the 23andme test I took in 2014 which is based off of SNPs from 2010 as MMaddi stated. It's a shame that they got rid of the Deep Clade test.

Regardless, what MMaddi said is best.
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

Similar Threads
Thread Thread Starter Forum Replies Last Post
No Matches at All w/ Predicted Haplogroup njbecky126 DNA and Genealogy for Beginners 14 4th May 2015 07:36 AM
Predicted haplogroup and subclades Hneel Y-DNA Haplogroups & SNPs Basics 15 6th September 2014 02:40 AM
What does Predicted Haplogroup Mean JThom Y-DNA Haplogroups & SNPs Advanced 4 14th April 2013 07:51 PM
No haplogroup predicted siroli DNA and Genealogy for Beginners 15 17th June 2011 06:49 PM


All times are GMT -5. The time now is 01:49 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.