* Sept Update -- identification of positive F2885 with - negative Z3353 has once again caused the ISOGG nomenclature to change -- we are now (again) shown as G1a3--further demonstration of the advantage of using the short hand designation
* update: I have become an example of the problem I raised. My haplogroup has changed from G1a3 to G1a1c -using the ISOGG designation; however using the terminal SNP designation, I remain Y haplogroup G (F2885)....
I thought that this practical example might add clarity to the problem for people who may not realize that at least parts of the ISOGG tables have had significiant changes in recent years.
iThe ISOGG tree also contains the caution that position is difficult to determine which implies that the ISOGG designator could well change again
when entering Y haplogroup only numbers and letters are allowed ... this was good when the ISOGG haplotree was short and simple and looked like it might remain stable.
I suggest allowing the Genographic Project style nomenclature -- and in fact encouraging its use. The terminal SNP is unlikely to change while the ISOGG designators seem likely to continue to change as new discoveries are made.
BACKGROUND: because new discoveries are causing major changes to the ISOGG haplotree sttructure, and because nomenclature is getting to be long and confusing, both Familytreedna and the Genographic project are now using "short hand" designators like G (F2885) which identifies the terminal SNP
much of the "traditional" ISOGG tree is in such a state of flux that it's hard to rely on a classification (for example - see Ray Bank' s OSOGG haplogroup G tree for the last few years and note all the changes..... and even when it it stable, it is sometimes such a jumble of numbers and letters that risk of "typo" is great (e.g. G2a1a1a1a1a1b1)