zumaale wrote:By 23andme relatives I am referring to how useful it is to obtain info on Somali haplogroups, not how reliable STR's are in determining the TMCRA of two individuals.
Ok sxb, but I didn't say anything about how reliable STRs are in determining the most recent common ancestor (TMCRA).
I said that the BGA testing/admixture testing which 23andme specializes in -- tests which include SNP genotyping and whole genome sequencing, though the firm so far only offers the former -- is unreliable. Only when these commercial companies begin using actual ancient DNA as reference samples will their analyses begin to approach something resembling biological reality.
zumaale wrote:There is a difference between Benadiris such as the Shanshi, associated groups and the Arab Somalis that are mostly of Yemeni origin.
Haplogroup T is found in the Arabian peninsula so what's the big deal.
In this thread we were only discussing Fardheer Somalis so I don't see how relevant it is to bring Arabs into this.
It is relevant and significant because your argument was that haplogroup T among Fardheer Somalis is mainly restricted to the Dir.
I just linked you to the
raw STR values for Arab Somalis, and they have a
higher frequency of haplogroup E1b1b than what you claim for the Dir. Around 33% were E1b1b carriers, and many were also haplogroup T carriers. Does this make sense to you?
Plug in the numbers for each Arab Somali individual/row into
this Y-DNA haplotype predictor (the numbers after each "DYS" in the paper correspond with the boxes in the haplotype predictor). You'll see that the first 11 of the 33 tested individuals are all indeed haplogroup E1b1b carriers, while several others belong to haplogroup T.
