Post by djoser-xyyman on Nov 4, 2013 19:26:19 GMT -5
Let me explain the study on “white West Africans” to the newbies and lurkers.
This is probably one of the most up-to-date study on human skin pigmentation since the famous Kittles, Norton Study of 2010. I stumbled across this by accident. It is ground breaking but I am not sure why it isn’t getting the deserved play.
Reputable researchers have moved beyond SLC45A2 as a “white” or European gene. Rees et al and Mekova et al etc think that the vit D hypothesis is nonsense. I agree.
Cape Verde is apparently ideal for this study. Better than Aframs. Apparently they are more admixed than Aframs.
What the researchers are trying to do is correlate skin shade with gene frequency at four Loci. SLC45A2 is just ONE of the FOUR loci for skin pigmentation in this study. Remember Kittles and Co. speculated on about six. Other researchers speculated that there are about 10. East Asians are light skin and yet they do NOT carry a high frequency of SLC45A2. In fact many East Asians are lighter than Europeans. See the world pigmentation chart. Or walk the streets of LA or Philly Chinatown(eyeballing LOL!), you will see. Hence the title of the famous Kittles and Norton paper.
Getting back to the “White West Africans”(Notice the West Africans carry 25% **derived** SLC45A2 – Sub-Saharans are NOT 25% admixed with Europeans). See study. He! He! He! -
Authors concluded several things.
1. There are FOUR skin pigmentation gene not ONE. The four genes are ADDITIVE!!! That means the more you have of the four genes the lighter is that population/person.
2. They concluded that there is NOT a direct correlation between so called “European” admixture and light skin in Cape Verdeans. Hence “unexplained heritability”. This what one of the charts I posted shows. They used mathematical models to come to that conclusion.
3. They included other primates in the study, which is sound science, to determine the ancestral (underived) genotype. Concluding that the genes origin is IN Africa. Thus their conclusion “light skin originated” BEFORE AMH left Africa.
4. They made no such statement about blue eyes. No data to prove it. …to be continued.
5. They also speculated that Mike is right. Europeans ARE Albinos. But not as simplistic as Mike puts it. I knew this over a year now. But they are NOT Dravidian Albinos either. The geneticists suggested that pigmentation ALWAYS goes back to the OCA2(Albino) gene, In other words the other genes are a “red-herring”. They suggested that it is due to LD that many OTHER researchers zero in on genes. Such as SLC45A2, ASIP etc. That means the “close proximity”(LD) of OCA2 can mis-lead researchers.
6. It doesn’t matter what YOU, Sage, racialists, what you see on TV or Google images, religious belief, or modern politicians think. This is what the data shows. You cannot dispute the facts or data. Word games like “associated”, affinity etc does nothing to me. I am a vet. You may get a knee-jerk reaction from newbies when you use those words. I am debating ORIGIN.
No gene or phenotype originated IN Europe. Europe is a geographic and genomic extension of Africa.
There…. I broke it down for you. If I have to spell this out for you then we should not be having this discussion. And how can we then discuss blue eyes, HERC1 and HERC2.
I hope you understand this statement - ”(Notice the West Africans carry 25% **derived** SLC45A2 – SSA are NOT 25% admixed with Europeans). See study. He! He! He! - Now you can see WHY Relethord et al made that statement.
