The following comments were written by Bob Tipton before his retirement as Project Admin in June, 2018, and may no longer be entirely applicable.

I-BY3473

One member of this subclade has BigY results that have been submitted to YFull.  Since he is the only member in their database, they have assigned him to the parent haplogroup, I-L813*.  They have defined 21 of his tested positions as Novel SNPs with Best or Acceptable Quality.  We were able to get two of these included in the CTS6868 SNP Pack and FTDNA assigned the names BY3473 and BY3474 to these SNPs.  They assigned the name I-BY3473 to the subclade.

Two members of the subclade have taken single-SNP tests for BY3473 and have been found positive.  Two additional members have been assigned to the subclade on the basis of their STR test results.


I-BY3463

One member of this subclade has BigY results that have been submitted to YFull.  Since he is the only member in their database, they have assigned him to the parent haplogroup, I-L813*.  They have defined 24 of his tested positions as Novel SNPs with Best or Acceptable Quality.  We were able to get two of these included in the CTS6868 SNP Pack and FTDNA assigned the names BY3463 and BY3464 to these SNPs.  They assigned the name I-BY3463 to the subclade.
One additional person has take the BigY test and matches 19 of the 24 Novel SNPs, including BY3463 and BY3464.  However, this person has not yet submitted his results to YFull.


I-Y15505*

One member of this subclade, kit #152546, has BigY results that have been submitted to YFull.  It was found that he shared SNP Y15505 with three other individuals in their database.  Since he shared no other SNPs (below I-L813 on the haplotree), YFull defined I-Y15505 as a subclade of I-L813 and assigned him to that subclade.  SNP Y15505 is included in the CTS6868 SNP Pack, so FTDNA assigned the subclade the same name on their haplotree.


I-Y14991*

As mentioned above, YFull had three other individuals in their database that shared Y15505 with kit #152546.  These three also shared 16 additional SNPs with each other.  (Eleven of these 16 are included in the CTS6868 SNP Pack.)  YFull defined a subclade of I-Y15505 which they call I-Y14991 (named after one of the shared SNPs).  One of these individuals in the YFull database has tested with the 1000 Genomes Project, rather than FTDNA, so cannot join this project.  His kit (HG00190) does show up in the project haplotree and in the YFull haplotree, but not in the FTDNA haplotree.


I-BY3472*

One individual in this subclade, who has not yet joined the project, submitted his BigY results to YFull.  They found that he shared one additional SNP with another individual in their database.  YFull gave that shared SNP the name Y19917.  This SNP is included in the CTS6868 SNP Pack but was given the name BY3472 by FTDNA.  The FTDNA name is used in the project haplotree.


I-BY3471

One individual in this subclade, who has not yet joined the project, submitted his BigY results to YFull.  Since he shared the SNP BY3472 (which YFull has named Y19917) with another individual in their database, they placed him in their haplogroup I-Y19917.  The other SNPs that he has are considered Novel SNPs by YFull.  This individual shares SNPs with four other BigY testers who have not submitted their results to YFull.  One of the shared SNPs, BY3471, is included in the CTS6868 SNP Pack.  FTDNA has assigned all five of these individuals to the haplogroup they call I-BY3471.  None of these individuals have joined the project yet.


I-Y18927*

Eight individuals who have taken the BigY test share the SNP Y18927.  FTDNA has added the haplogroup I-18927 directly under I-L813, and placed all eight individuals in this haplogroup.  However, seven of the eight individuals also share the SNP Y21736.  The remaining individual, kit 345284, has been assigned to I-Y18927*.


I-Y21736*

Seven of the eight individuals that are positive for the SNP Y18927 are also positive for the SNP Y21736.  FTDNA does not offer a test for this SNP, and does not include the subclade in their haplotree.  Five of the seven individuals that are positive for Y21736 share additional SNPs, one of which is Y20861.  The two individuals that do not share Y20861 have been placed in I-Y21736*.  Only one of these two individuals has joined this project at this time.  (Note: the project member in this subclade has his privacy permissions set so that only project members can see his results.  So, if you are not a logged-in project member, you will not see any results in this haplogroup.)


I-Y20861

Four of the five individuals that are positive for Y20861 have submitted their results to YFull for analysis.  YFull has added I-Y20861 as a subclade of I-Y21736.  They define the subclade by a total of six equivalent SNPs.  YFull has defined one subclade of I-Y21736 which they call I-Y23712.  The two individuals that are negative for Y23712, they have placed in I-Y20861*.


I-Y20861a

The two individuals that YFull has placed in I-Y20861* actually share a Novel Variant at position 15949995.  The other three individuals are negative for this Novel Variant.  In the I-L813 version of the Haplotree, I have created a separate subclade for these two individuals.  Since the SNP that they share has not yet been assigned a permanent name, I have temporarily called the subclade I-Y20861a.  (Note: both of these individuals have joined the project, but one of them has his privacy permissions set so that only project members can see his results.  So, if you are not a logged-in project member, you will only see one result in this haplogroup.)


I-Y23712

Three of the individuals that are positive for Y20861 also share additional additional SNPs.  Two of these three have submitted their results to YFull for analysis.  YFull has added a subclade I-Y23712 below I-Y20861 in their tree.  They have defined this subclade by five SNPs.  The individuals actually share a couple additional Novel Variants, but YFull has not assigned permanent names to them yet.