A member wants his son's ....

[1798]

in regards to yDNA STR's, no close family members may not have the same values. This all depends when a mutation/copy error occurred.

For instance between my Father, his brother, and their 1st cousin, each has different values.

My Father to 1st Cousin - 1 [email protected], 4 [email protected], 4 [email protected]
My Father to his brother - 1 GD @ 37 markers
My Uncle to 1st Cousin - 1 [email protected], 3 [email protected]

My Father's 1st Cousin's results are the closest to all other surname matches(he has about 3 times as many surname matches), showing that in my direct line within the last 2 generations (My Grandfather to children and My Great Grandfather to my Grandfather) there was an instance of multiple STR value changes, one possibly a 2 Step.

Depending on how ones yDNA matches others, it maybe beneficial to test other family members to rule out any recent changes which will place you at a greater GD.

Granted terminal SNP value should be identical.....

It is possible that some of these YSTR mutations are temporary and they will revert back to the ancestor haplotype in the coming generations.

[1798]

When does a YSTR mutation become a permanent mutation within our ydna. Our dna is capable of repairing any damage that is done to our bodies as long as it is not too severe.

[Stephen Parrish]

When does a YSTR mutation become a permanent mutation within our ydna. Our dna is capable of repairing any damage that is done to our bodies as long as it is not too severe.

You might find this ISOGG Wiki article of interest: http://www.isogg.org/wiki/RecLOH

It has been my understanding for several years that a null short tandem repeat (DYS425 = null, for example) is irreversible.

Stephen

[1798]

You might find this ISOGG Wiki article of interest: http://www.isogg.org/wiki/RecLOH

It has been my understanding for several years that a null short tandem repeat (DYS425 = null, for example) is irreversible.

Stephen

Null 425 can be found in lots of branches. It seems to me that it acts like a dna safety valve to ensure that enough females are born. If it doesn't correct itself in the coming generations then that Y-line is finished.

[Paul Burns]

Null 425 is not always null. When it is a recLOH, it is a change in values that the the test primers did not pick up. I am Null 425, that is, I show a zero on FTDNA's charts, but investigation of 371 (425 is one peak of 371)revealed that my values of 10c 12t 13c 14c became 10c 10c 13c 14c. The 10c overwrote the 12t. In short, at 425 I am not null,I am 10c. Similar overwrites in 464 are generally ignored, but they are mutations.!

[khuebner]

re the original topic

I like the original poster's solution ("What I did was to create a new sub-group and named it with the particular SNPs as follows
sub-group 4
CTS4528+ DF100+ Assumed (based on parent STRs(12) matching)").

On MtDNA, I've tested my mother and a relative with my paternal grandmother's line. The latter turned out to be an unusual haplogroup in the testing world (H3t) but my extended family must have a ton of it, so I've added some of them to the appropriate projects with the note that I'm basing it on the member who has actually tested. It is up to the project administrators to decide how to handle that, but they've accepted all of the new members and know their relationships to the person who did the test. I assume that will allow the admins to include or exclude those people depending on what kind of analysis they're doing.