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Major update reorganizes entire haplogroup I2 tree

Friday, February 21, 2020

I-Y55233 is a new level in the I-Z113 tree: 2020-02-20 update

Click here to download our 2020-02-20 draft tree for I-Z113

The largest branch of I-Z113 is I-FT59019. This update shows a new level below I-FT59019.

At this point, all I-FT59019 men belong to either the existing I-SK678 branch or to the new I-Y55233 branch. And each of these branches have several subbranches.

Big Y tests report only a few reads for the Y55233 position.

This update also corrects the Y2181 SNP name, on our previous tree it was written CTS2181 erroneously.


Click here to find our previous tree for I-Z113
Click here for a brief description of the I-Z113 haplogroup

Thursday, February 13, 2020

Finally, a Big Y sample in a branch with the 1000 Genomes Puerto Rico samples: 2020-02-12 tree for I-Z113

Click here to download our 2020-02-12 draft tree for I-Z113

This draft tree shows several updates:

A new Big Y-700 result for a man with El Salvador ancestry is CTS3203+ Z97+ Z107+ Z110+ etc. Previously these SNPs had only been found in two anonymous samples from Puerto Rico, these two men were part of the 1000 Genomes project.

The Puerto Rican men share at least 9 additional SNPs with each other, the El Salvador man has negative results for some of these SNPs, and no result was reported for other SNPs. There is another man in the I-P37 project with Puerto Rico ancestry, his Genographic 2.0 test reported CTS2303+ Z97+ Z107+ results.

(Update 2020-02-21: This draft tree shows a branch called I-CTS2181 but this name is incorrect. The correct name is I-Y2181. We have already corrected the name on our 2020-02-20 tree which is available on this blog. So far the only known members of this branch are the two 1000 Genomes samples, Y2181 wasn't tested in the Genographic 2.0 test).

FTDNA's Big Y Block Tree and Haplotree show I-Z110 as a parallel branch to I-CTS3203. This is incorrect, Z110 and CTS3203 are currently equivalent SNPs as shown on our I-Z113 tree linked above and on YFull's I-Z113 tree (click here)

FTDNA's Big Y Block Tree and Haplotree show Z113, Z27246 and FT59019 as equivalent SNPs. This is incorrect, the El Salvador man is Z113+ Z27246+ but FT59019-. Almost all other Z113+ Z27246+ mean are FT59019+. 

We now know that I-Z113 has three immediate child branches: the large I-FT59019 branch, the small I-CTS3203 branch, and an I-Z113* branch which currently contains a single sample with Spanish paternal ancestry.



Click here to find our previous tree for I-Z113
Click here for a brief description of the I-Z113 haplogroup

Wednesday, February 12, 2020

Several new branches and a new STR pattern: 2020-02-12 tree for I-PH908

Click here to download our 2020-02-12 tree for I-PH908

This tree shows several new branches/splits in the I-Y126296 haplogroup (part of I-FT16449). These branches were discovered by comparing some FTDNA Big Y-700 results to three people who tested at Dante Labs.

This tree also shows some new downstream haplogroups in various parts of the I-PH908 tree
I-BY227002
I-FT177529
I-FT190799

and a new haplogroup immediately below I-PH908:
I-Y57291

Finally, this tree shows a new STR marker pattern: three haplogroups below I-FT14506 share the distinctive STR marker value DYS726=12. But we haven't found any SNP that corresponds to this grouping.

Click here to find our previous tree for I-PH908
Click here for a brief description of the I-PH908 haplogroup

Thursday, February 6, 2020

Another German in the Sardinian I-PF4190 branch: 2020-02-06 tree for I-CTS11338

Click here to download our 2020-02-06 tree for I-CTS11338

I-PF4190 is the largest branch of I-M26 on the island of Sardinia, approximately 75% of the I-M26 men in Sardinia belong to I-PF4190. Paolo Francalacci sequenced the Y chromosomes of 1200 Sardinia men, 464 of them belonged to I-M26 and 345 of these belonged to I-PF4190.

Francalacci was able to create a tree based on these sequences, his I-PF4190 tree had approximately 147 branches and hundreds or low thousands of SNPs.

This I-CTS11338 tree is based on commercial NGS Y chromosome sequences (the Big Y etc). Our shows only 5 branches in I-PF4190 and approximately 50 SNPs. I-PF4190 has a MRCA who lived approximately 4100 years ago. I  think this shows how much is remaining to be discovered about the Y-DNA tree.

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This tree shows a new sample for a German-ancestry man. When we see non-Sardinian men in I-PF4190, they often have German ancestry. He's not closely related to previous I-PF4190 German samples

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For reasons of space we have moved the I-Z113 branch to a tree of its own, click here to find our first I-Z113 tree.

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Click here to find our previous tree for I-CTS11338
Click here for a brief description of the I-CTS11338 haplogroup

Our first tree specific to I-Z113

Click here to download our 2020-02-06 draft tree for I-Z113

For reasons of space, we have created a tree specific to I-Z113.

I-Z113 is maybe the most common branch of I-M26 outside of Sardinia. The MRCA of I-Z113 lived approximately 1600 years ago, according to YFull's calculation. I-Z113 is found in Spain, Portugal, the Azores and France, and there are also a few I-Z113 men from England.

Click here to find our previous tree for I-CTS11338 which included I-Z113
Click here for a brief description of the I-Z113 haplogroup

Monday, February 3, 2020