General Discussion

starroute

(12,977 posts)

32. The gene for "white" skin only goes back 20-some thousand years

Mon Nov 11, 2013, 05:00 PM

Nov 2013

This guy's vaunted Cro-Magnon ancestors would have looked far more like a native New Guinean or Australian than like anyone living in Europe or the United States today.

http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1003912

Skin pigmentation is one of the most variable phenotypic traits in humans. A non-synonymous substitution (rs1426654) in the third exon of SLC24A5 accounts for lighter skin in Europeans but not in East Asians. . . . Sequencing 11.74 kb of SLC24A5 in 95 individuals worldwide reveals that the rs1426654-A alleles in South Asian and West Eurasian populations are monophyletic and occur on the background of a common haplotype that is characterized by low genetic diversity. We date the coalescence of the light skin associated allele at 22–28 KYA. Both our sequence and genome-wide genotype data confirm that this gene has been a target for positive selection among Europeans.

Edit history

Please sign in to view edit histories.

Recommendations

0 members have recommended this reply (displayed in chronological order):

46 replies

= new reply since forum marked as read

Highlight:

Talk show host delivers DNA test results to white supremacist : �You have a little black in you" [View all] kpete Nov 2013 OP

A mere 200000 years ago all of his ancestors were likely African who were not Neanderthal. gordianot Nov 2013 #1

Since they don't believe in evolution, I wonder where they think all the races came from Bandit Nov 2013 #5

Or white folks, for that matter.... Wounded Bear Nov 2013 #9

tower of Babel d_r Nov 2013 #27

I think that had to do with differnent languages, not different races. Bandit Nov 2013 #28

then you didn't grow up in my southern baptist household d_r Nov 2013 #34

The sons of Noah - LibertyLover Nov 2013 #31

A good description of Evolution Bandit Nov 2013 #37

Yeah, that's how pipi_k Nov 2013 #45

Noah's sons dsc Nov 2013 #41

Hard to know, could be fraction of Denisovan in there, too. HereSince1628 Nov 2013 #7

The other thing humans liked to do is migrate the genetics in the British Isles suggest Africa. gordianot Nov 2013 #10

Oh for sure. We r highly vagile yet territorial, our ranges r pushed by our 'success' HereSince1628 Nov 2013 #26

Neanderthals *also* ultimately African: the current model is that the continent was a constant pump MisterP Nov 2013 #23

Just about everyone of European or Asian deep ancestory are on average sarge43 Nov 2013 #33

Actually, only 70K years ago. GreenStormCloud Nov 2013 #39

Well, duh Scootaloo Nov 2013 #2

even when confronted with the truth JanT Nov 2013 #3

sweet warrior1 Nov 2013 #4

14% is not noise. Nine Nov 2013 #6

Or several thousand remote ancestors. gordianot Nov 2013 #11

I don't know about that. Nine Nov 2013 #12

I honor my Neanderthal genes Treant Nov 2013 #14

Some of our Neanderthal ancestors had red hair and probably light colored eyes. gordianot Nov 2013 #17

All humans ultimately come from Africa. Arugula Latte Nov 2013 #25

14% doesn't that make him 1/8 African American? notadmblnd Nov 2013 #29

related to Clayton Bigsby? nt geek tragedy Nov 2013 #8

:D Ian_rd Nov 2013 #20

We're all Africans - the only variable is time hatrack Nov 2013 #13

And somewhere down the line, on our way to what would eventually become India and Sri Lanka... derby378 Nov 2013 #38

and it's great ut oh Nov 2013 #15

You guys are missing the point- KrazyinKS Nov 2013 #16

I got it and she had a loaded deck with only one possible outcome no need to cheat. gordianot Nov 2013 #22

"Bro" BainsBane Nov 2013 #18

If it had been 50%, he would have still called it statistical noise. nyquil_man Nov 2013 #19

That would explain the hair. If not combed out regularly I bet it curls up. johnlucas Nov 2013 #21

Good. I'll bet a whole bunch of those racists are not 100% Cleita Nov 2013 #24

Oh heck yeah. Any American family who's been here several generations and has outmarried... Hekate Nov 2013 #43

Also Native American and in many cases both. nt Cleita Nov 2013 #46

Pure Evil n/t AAO Nov 2013 #30

The gene for "white" skin only goes back 20-some thousand years starroute Nov 2013 #32

I wonder if he's related to Ty Cobb CanonRay Nov 2013 #35

Nobody told him about Lucy either. Manifestor_of_Light Nov 2013 #36

Read about the culture of antebellum New Orleans LittleBlue Nov 2013 #40

That happens more often that not. I have a drop dead blond female bluestate10 Nov 2013 #42

Those two ladies were WONDERFUL Hekate Nov 2013 #44