The Belgians did not invent the Hutu and Tutsi ethnic groups, who have different origins

Since I resurrected the analysis of Tutsi genotypes last year I’ve been getting a fair number of emails and messages from people. The issue is that periodically someone, usually, but not always, a white male, will explain that “actually, Tutsis and Hutus aren’t real ethnic groups, and were invented by the Belgian colonialists….” Many people from this region of the world are privately very skeptical of this viewpoint (they tell me so, but don’t want to get into a huge public spat with all-knowing-white-gods). After all, they are from this region, and Hutus are Tutsis are physically often quite distinctively different. They simply do not buy the social constructionist narrative as explaining everything that they see with their own eyes.

But we’ve seen this before, haven’t we? “Well actually, the Lombards weren’t ethnically different from the Romans, they were a Germanized group of mercenaries who created an identity de novo.” Also, “well actually, ‘caste’ is an ancient Indian concept but modern caste-jati groups were reified by the British in the 19th-century….” (genetics tells us both assertions were wrong).

Historiography of the early 21st-century will observe that many white semi-intellectuals took on the metaphorical role of Hamlet in world history, tortured and self-hating souls who put themselves at the center of every dramatic event. All roads lead back to Hamlet.

As it happens, I now have a single Hutu to compare the dozen or so Tutsis to.

Click to enlarge

On the PCA plot above you see the Hutu is near the Luhya and Bantu agriculturalists from Kenya. The Tutsis are shifted toward various Near Eastern populations. Nothing surprising.

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Tutsis are genetically very similar to Masai


Many years ago, before I used ggplot, I did a little analysis of the genetics of the Tutsi. Actually, it was the genetics of a single Tutsi, or more precisely, someone who was 75% Tutsi ancestry (3 out of 4 grandparents).

I found that the Tutsi individual seemed quite distinct from the Bantu peoples in nearby Kenya. I suggested that it was likely that the Tutsi were then genetically distinct from the Hutu people amongst whom they lived. For many years this was part of the genetics section of the Wikipedia entry on the Tutsi, but recently the reference was removed and the page seems to have been re-edited.

That’s fine. I’m just a random blogger who had one sample. But as it happened recently about a dozen Diasporic Tutsis reached out to me. Over the last decade, the number of people who have been genotyped has increased greatly. So it wasn’t that difficult for interested parties to find these genotypes.

The mission they put before me is simple: “tell us about our genetics”. Over the next few weeks, I’ll do that. As there is no IRB, this won’t be published in a peer-reviewed journal (I am open to putting any researcher in contact with these Tutsis who reached out to me). I’m just going to put what I find out there so that Tutsis who do personalized genetic testing can make sense of what they’re finding out.

I received these genotypes today. A quick merge of samples I have reduced it down to 50,000 markers. I will work on creating a merge with a larger number of markers. But, I’ll report what I have found out so far as a first pass.

As you can see on the PCA plot above the Tutsi overlap almost perfectly with the Masai. Not with the Kenyan Bantu, or the Luo, who are more “African” shifted. But with the Masai. But, they are not as “Eurasian shifted” as the Somali.

Treemix confirms this:

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