Do these PCAs reflect accurately where Native Americans are plot?

[Tsakhur]

Since Natives are around 60% ancient East Asian and 40% ANE, do these PCAs reflect accurately they are plotted?:

For example, does this PCA based on the Gedrosia ANE K6 exhibits well where Native Americans are located genetically (Credits to the user Petalpusher from TA for creating the PCA)?

https://i.imgur.com/PblLwBj.jpg


And also this PCA: Totonacs are an Amerindian ethnic group from Southern Mexico. The PCA comes from this DNA study. The Bolivians according to this paper has some European admixture while the Totonacs are 100%/close to 100% Amerindian. CHB/JPT are Han Chinese from Beijing, Japanese from Tokyo while CEU are Americans of European descent from Utah and YRI aer Yorubas fo West Africa. https://www.researchgate.net/publication/225046043_Genetic_analysis_of_ancestry_admixture_a nd_selection_in_Bolivian_and_Totonac_populations_o f_the_New_World

https://upload.wikimedia.org/wikipedia/commons/9/92/PCA_plot_of_Totonacs_and_Bolivians.png


Also one more: This PCA from the Malaspinas DNA paper on Botocudo genomes: https://www.sciencedirect.com/science/article/pii/S0960982214012743
https://dnaexplained.files.wordpress.com/2015/07/botocudo-not-admixed.png

So I wonder are these PCAs accurate?

[Tsakhur]

Opinions please?

[Bbgum]

from what ive seen. East asians, central asians should be on one cline. Then on top of them, northern europeans, native americans, and siberians. I did not know they would be so west shifted though. I also wonder if WHG is true, as it seems so far on the left corner. But its a interesting map :thumb:

[Tsakhur]

from what ive seen. East asians, central asians should be on one cline. Then on top of them, northern europeans, native americans, and siberians. I did not know they would be so west shifted though. I also wonder if WHG is true, as it seems so far on the left corner. But its a interesting map :thumb:

Hmm ok. Make sense though as Native Americans and Siberians are more "northern-shifted" genetically than East Asians and Central Asians. What PCA (s) did you saw that show this?

You didn't know that Amerindians can be so Western-shifted? It makes sense though as they are around 30-40% ANE who are approximately 3/4 ancient West Eurasian (of Sungir/Kostenki-related extraction) and 1/4 ancient East Eurasian (Tianyuan-like), thus making them around 23-30% West Eurasian which is similar to the amounts that Altaian (a Southern Siberian Turkic ethnic group) and Kyrgyz would possess, so it makes sense that Natives (as represented by Clovis and Pima in the first PCA, Totonac in the other one) would be close to them. I just want to hear confirmations from users who are genetic experts.

Yes these PCAs are interesting indeed. Its strange that hardly anyone discusses or notices this topic.