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View Full Version : Frequency/heatmap of R1a-Z93?



Dr_McNinja
02-04-2015, 11:49 AM
Which are the accurate ones?

I've seen this one:

https://lh3.googleusercontent.com/-75LFC2DbVTQ/U0pzZpEe2QI/AAAAAAAAAU4/-KnlCxo9SkM/w746-h408-no/Underhill_Z93.png

My only issue with that is that R1a-Z93 seems like it should be way more common in Afghanistan/Pakistan/etc?

Eupedia's map: http://cdn.eupedia.com/images/content/Haplogroup-R1a-Z93-Eurasia.png

Or does this pattern (L657 maybe?) perhaps correlate to the easternly spread of Eurogenes K7/K8's WHG-UHG component in South Asia? (East of Pakistan mostly across Punjab, Haryana, Nepal).

DMXX
02-04-2015, 08:55 PM
The maps have very similar patterns. The only major difference between them is the displaying of sampling locations. Shown in Underhill's, absent in Eupedia's. Knowing where the samples are is crucial in determining whether the gradients between various frequency peaks and troughs are artefactual or not. Underhill's is better in this respect.

The frequency increments are also similar. Both plots essentially show the same thing from 20-60%. A 5% increment all the way from 0-60% would have been more informative for fleshing out regional differences.