From a previous post of mine.
The Khoisan are found to have some Eurasian DNA, so intermarriages to other ethnic groups have happened. But this is where it gets interesting. Scientists propose a wave of Eurasian DNA travelled into Africa about 3000 years ago. This is the map they used to show the route it took to get into the DNA of the Khoisan.
https://www.newscientist.com/article/dn24988-humanitys-forgotten-return-to-africa-revealed-in-dna/
Now this
further support my hypothesize, because 3000 years ago is the time that Somalis are believed to have split off from other Cushites like the Oromo and Amhara.
My theory was that the other non-Somali Cushites travelled into Southern Ethiopia and further South, mixing with the local populations that then included the Khoisan. This is where the Khoisan got the Eurasian DNA and where the other Cushites got some of the Khoisan DNA.
Now you can't lie that these to maps line up perfectly, therefore even further supporting my hypothesis. And in this map the Somali people are untouched by Khoisan DNA, meaning we did not travel into Southern Ethiopia with the other Cushites but most likely instead into the Somali Peninsula were we remained homogeneous.
Now you might wonder how the Eurasian sian DNA ending up in Khoisans and the other Cushites ending up in Southern Ethiopia is related. Well scientists believe the E-M78 subclade originated in Northeastern Africa, around Egypt. As we carry this marker we know our ancestors once migrated there then back into the Somali Peninsula and the Horn.
When the Cushites were traveling southwards from Egypt around 3000 years ago we carried pretty recent Eurasian Admixture. On the journey the Somali split off and the other Cushites ended up in Southern Ethiopia where we know they got Khoisan DNA. This is
alsowhere the Khoisan got the small amount of Westeurasian DNA that scientists discovered in 2014.
And the amount of Khoisan DNA in East Africans can be seen here
As you can see Cushites with Khoisan DNA in them include the Amhara, Oromo, Ethiopian Jew, South Semitic Ethiopian and just plain Ethiopian. (Note that the Somali is completely absent.)
And to your claim the Khoisan aren't haplogroup A, they most definitely are as you can see from the map I posted and from this tidbit.
Here is a part from the article detailing the discovery of Eurasian DNA in the Khoisan.
Archaeological and linguistic studies of the region can make sense of the discovery. They suggest that a subset of the Khoisan, known as the Khoe-Kwadi speakers, arrived in southern Africa from east Africa around 2200 years ago. Khoe-Kwadi speakers were – and remain – pastoralists who make their living from herding cows and sheep. The suggestion is that they introduced herding to a region that was otherwise dominated by hunter-gatherers.
Khoe-Kwadi tribes
Reich and his team found that the proportion of Eurasian DNA was highest in Khoe-Kwadi tribes, who have up to 14 per cent of western Eurasian ancestry. What is more, when they looked at the east African tribes from which the Khoe-Kwadi descended, they found a much stronger proportion of Eurasian DNA – up to 50 per cent. [This is incredibly obviously the Cushites of Ethiopia.]
That result confirms a 2012 study by Luca Pagani of the Wellcome Trust Sanger Institute in Hinxton, UK, which found
non-African genes in people living in Ethiopia.
Both the 2012 study and this week’s new results show that the Eurasian genes made their way into east African genomes around 3000 years ago. About a millennium later, the ancestors of the Khoe-Kwadi headed south, carrying a weaker signal of the Eurasian DNA into southern Africa.
The cultural implications are complex and potentially uncomfortably close to European colonial themes. “I actually am not sure there’s any population that doesn’t have west Eurasian [DNA],” says Reich.
“
These populations were always thought to be pristine hunter-gatherers who had not interacted with anyone for millennia,” says Reich’s collaborator, linguist
Brigitte Pakendorf of the University of Lyon in France. “Well, no. Just like the rest of the world, Africa had population movements too. There was simply no writing, no Romans or Greeks to document it
Here is a comparison of all maps
Note Ethiopia being the area where other Cushites mixed with other populations and note that the Khoisan live in Southern Ethiopia.
E1b1b is strong among the Somali and NA Berber because these are homogeneous populations. It is weaker in non-Somali Cushitic land and
also present in Southern Africa. As the non-Somali Cushites mixed out, their level of E1b1b dropped as they became less heterogeneous and picked up other lineages while the Khoisan picked up some of theirs, the E1b1b.
i was just starting to believe you too
