--- In
cybalist@yahoogroups.com, "alexandru_mg3" <alexandru_mg3@...>
wrote:
> Useful?
...
> See below a diagram of '5-generations' (125-150 years) "in which"
> where we already have "7 fathers" to imagine how many ancestors are
> not taken into account in relation with the other Chromozones
The subject of this list is of course Indo European, and therefore
the relevance here is trying to track population movements over time
in a broad way (and not simply relatedness of different people).
With that in mind it is important to realise that in such studies,
not only Y-DNA and mt-DNA studies are done, but also studies
of "autosomal" stretches of DNA from the recombinative chromosomes.
This is possible because even when DNA is combined (mixing the DNA of
the parents) this is normally transferred in quite stable chunks.
So while there are famous discussions about "Y DNA Adam" and "mt DNA
Eve" the same can be done (a family tree for all mankind, with one
common ancestor) for each of the stable chunks of autosomal DNA.
For someone trying to reconstruct unwritten history, for example
population movements in Eastern Europe, the same technique is then
applied to trying to find the ancestor of the first person showing a
particular mutation.
Best Regards
Andrew