Family Tree DNA Forums

Family Tree DNA Forums (http://forums.familytreedna.com/index.php)
-   Y-DNA Haplogroups & SNPs Advanced (http://forums.familytreedna.com/forumdisplay.php?f=199)
-   -   I2a - "mega thread" (http://forums.familytreedna.com/showthread.php?t=38726)

Kurgan 5th November 2015 06:23 AM

I2a - "mega thread"
 
I thought I'd start what I hope to be the "main" I2a discussion thread. :)

A couple of thread topics for discussion that I personally would like to explore are:

-- glacial refugium (Iberian penninsula, Dinaric alps, Black sea coast, Caucasus region, Anatolia, etc.)

-- latest archaeological findings as they relate to European, Eurasian Steppe, and Anatolian genetic testing. Let's talk facts, not run-on speculation based on poor/ brief/ questionable historical accounts.

-- your earliest ancestor's country/state/city of origin.

Also, what is your terminal SNP?

If you feel you need more testing, experts like, Bernie Cullen, Zdenko Markovic, and Lawrence Mayka can hopefully chime-in and guide you.

Most importantly, DO NOT SPEND A RED CENT until you get advice from these guys. I can't tell you how many hundreds of dollars I saved due to the good advice of these fine gentlemen.

Kurgan 6th November 2015 06:34 AM

Paternal: I-A2423 (tested at ySeq.net)

I2a2 'Dinaric' L621 > CTS10228 > S17250 > BY128 > Z16971 > A2423 (I-A2423)

The average age of A2423 is 918 years (based on Big Y results to date)

*********************************

Maternal: H7c3

H7 is an uncommon branch of haplogroup H and is found at low frequencies in both Europe and the Near East. Its age is estimated to be around 15,000 years.

*********************************

"MyOrigins" (autosomal DNA):

Eastern Europe: 58%
Southern Europe: 16%
Western & Central Europe: 16%
Finland & Northern Siberia: 6%
Asia Minor (Anatolia): 3%

*********************************

Family Finder Matches (Y-DNA) spread all over the map, which would explain "MyOrigins" above.

Major Clades of my autosomal DNA matches are:

R1b -- 16 matches
R1a -- 11 matches
I2a -- 8 matches
I (old I) -- 2 matches
J2 -- 6 matches
E1b -- 2 matches
G -- 2 matches
N -- 1 match
T -- 1 match

Kurgan 6th November 2015 06:46 AM

An excellent, easy-to-read thread on the origins of Europeans...

3 ancient tribes!

http://www.bbc.com/news/science-environment-29213892

Kurgan 6th November 2015 06:50 AM

Another fantastic, easy-to-read explanation of the origins of ancient Europeans. A must read for all I2 folk!

http://news.sciencemag.org/archaeolo...ck-36000-years

Kurgan 6th November 2015 07:04 AM

from the article above:

"The man from Kostenki shared close ancestry with hunter-gatherers in Europeóas well as with the early farmers, suggesting that his ancestors interbred with members of the same Middle Eastern population who later turned into farmers and came to Europe themselves. Finally, he also carried the signature of the shadowy western Asians, including a boy who lived 24,000 years ago at Malíta in central Siberia. If that finding holds up, the mysterious DNA from western Eurasia must be very ancient, and not solely from a wave of nomads that entered Europe 5000 years ago or so, as proposed by researchers in September."

Kurgan 6th November 2015 07:08 AM

An even better article containing all the elements noted in other articles:

http://peaceandjustice.freeforums.ne...e-years?page=3

lgmayka 6th November 2015 08:32 AM

Quote:

Originally Posted by Kurgan (Post 419105)
The average age of A2423 is 918 years (based on Big Y results to date)

Here is YFull's haplotree for I-A2423 (also called I-Y12911). YFull offers two different dates:

Formed 1800 ybp - This branch began to diverge from its parent/siblings about 1800 years ago.

TMRCA 750 ybp - The examples examined by YFull have a Time to Most Recent Common Ancestor (TMRCA) of about 750 years.

These are clearly very rough numbers, because YFull has only identified one reliable defining SNP (so far) for the clade--an unrealistically low number if the clade was really gestating for 1050 years. Perhaps YFull is waiting for a third example before committing to a full list of common SNPs.

Kurgan 6th November 2015 08:46 AM

EDIT: you are correct. I went back to look and the dates have indeed changed: 761 ybp

Rough, but certainly young.


BRANCH ID SAMPLE ID NUMBER OF SNPS COVERAGE (BP) FORMULA TO CORRECT SNPS NUMBER CORRECTED NUMBER OF SNPS FORMULA TO ESTIMATE AGE AGE BY THIS LINE ONLY
YF02992 5.0 7962187 5.0/7962187*8467165 5.32 5.32*144.41+60 828
YF01658 4.0 7717992 4.0/7717992*8467165 4.39 4.39*144.41+60 694

Kurgan 6th November 2015 08:48 AM

Quote:

Originally Posted by lgmayka (Post 419110)
Here is YFull's haplotree for I-A2423 (also called I-Y12911). YFull offers two different dates:

Formed 1800 ybp - This branch began to diverge from its parent/siblings about 1800 years ago.

TMRCA 750 ybp - The examples examined by YFull have a Time to Most Recent Common Ancestor (TMRCA) of about 750 years.

These are clearly very rough numbers, because YFull has only identified one reliable defining SNP (so far) for the clade--an unrealistically low number if the clade was really gestating for 1050 years. Perhaps YFull is waiting for a third example before committing to a full list of common SNPs.

When you think we'll see the full list?

lgmayka 7th November 2015 01:38 PM

Quote:

Originally Posted by Kurgan (Post 419112)
When you think we'll see the full list?

My suggestion (not based on any specific knowledge) is that YFull may be waiting for a third example of your subclade. Some SNPs that look iffy on only two people (e.g., if the number of reads is low for both) may look more solid if a third example arrives.


All times are GMT -5. The time now is 09:11 PM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.