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DaMalakandGhar DaMalakandGhar is offline
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Default yhrd 9 Y-STR allele Matching for Yousafzais - 03-21-2012, 06:47 AM

I searched yhrd using 9 Y-STR alleles 0f the most frequent Yousafzais haplotype and obtained the following result. Any comment by DMXX or Karachi?



Last edited by DaMalakandGhar; 03-21-2012 at 07:04 AM.
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Default 03-21-2012, 08:58 AM

The yhrd does at leas give references to all the data it uses.

The blog invents south west central Asian groups.
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Default 03-21-2012, 01:49 PM

Quote:
Originally Posted by roadrunner View Post
The yhrd does at leas give references to all the data it uses.

The blog invents south west central Asian groups.
rogue payya, u might not be entirely wrong
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Default 03-25-2012, 03:10 AM

The YHRD is a very useful tool for analysing Y-STR haplotypes from under-sampled regions of the world, such as our own (Iran-Afghanistan-Tajikistan-Pakistan).

As mutations can take place on any STR locus per generation, using only 9 loci to ascertain paternal line relationships going back more than a few generations is accompanied by a very high margin of error ("red herring" matches between haplotypes, difficulty predicting Y-Chromosome haplogroups etc.)

From experience, 9 STR's along the Y-Chromosome are simply too few to make any meaningful conclusions from data, particularly if it's being used in the context of prehistoric migrations.

As a genetic genealogy enthusiast, I currently consider 17 STR's to be the minimum "threshold" based on experience. Recent studies (>2009) generally seem to test at around the same level.

However, in this particular case (R1a1a, South-Central Asia and Europe), your results are in line with other people's findings (including my own). Certain "types" of R1a1a (the K supercluster in particular as per Polish R1a1a Project nomenclature) have matches from Europe all the way into Central Asia and date back to roughly 4000ybp.

Last edited by DMXX; 03-25-2012 at 03:14 AM.
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