Science November 2017 PMID 29025994

Loci associated with skin pigmentation identified in African populations.

Nicholas G Crawford, Derek E Kelly, Matthew E B Hansen, Marcia H Beltrame, Shaohua Fan, Shanna L Bowman, Ethan Jewett, Alessia Ranciaro, Simon Thompson, Yancy Lo, Susanne P Pfeifer, Jeffrey D Jensen, Michael C Campbell, William Beggs, Farhad Hormozdiari

Download social card

Mentions

162
Peak: 6 in Sep 2023
across 6 sources since Feb 2019

Extended reach

148,678
potential audience

Total likes

1,285

Video views

25,988

Mentions per month

Feb 2019 – Sep 2025

Where it's discussed

  • News60 articles
  • X / Twitter53 posts
  • Facebook21 posts
  • Blogs21 articles
  • YouTube4 videos
  • Reddit3 posts

AI synopsis

What people are saying

Several posts refer to specific genetic findings, such as shared dark skin alleles between Africans and South Asians, illustrating the intricate nature of genetic traits. Discussions often include phrases like 'genetic diversity' and 'not a simple binary,' reflecting a sophisticated understanding of the subject. The tone is generally academic and exploratory, highlighting both agreement with the study’s conclusions and a desire for further discourse.

AgreementModerate agreement

Most discussions reflect a consensus around the findings of the publication, emphasizing shared genetic traits among diverse populations.

InterestHigh interest

The high level of engagement indicates that many are curious about the implications of genetic diversity and skin pigmentation in human evolution.

EngagementHigh engagement

Many comments delve into the complexities of genetic heritage, showcasing deep discussions about the methodologies and implications of the study.

ImpactHigh impact

Participants perceive the publication as having significant implications for understanding human genetics and the socio-cultural narrative surrounding race and identity.

Abstract in brief

  • The study explores the genetic basis of skin pigmentation by analyzing ethnically diverse African genomes and identifies specific genetic variants associated with skin color.
  • Genetic evidence suggests that the light pigmentation variant in East Africa originated from gene flow with non-African populations, while dark pigmentation variants found in Africans are similar to those in South Asian and Australo-Melanesian groups.
  • Functional analyses reveal that certain genes impact melanin production and are linked to ultraviolet light response genes, showing evolutionary selection in Eurasian populations.

Top posts

Most liked on X and Bluesky
Tom Rowsell
@Tom_Rowsell · X

Link to the study https://t.co/VqpIaTZb6M

Sep 22, 2023 · 60 likes · 5 shares · 58,611 followers View post →
Gnosari
@foltfinda · X

@Maina_Poultry Majority? 1901 tu juzi? There would be lots of biracial grandparents, but they’re very rare. So far, scientists have found that the genes associated with lighter skin pigmentation in Africans are not necessarily related to Europeans. https://t.co/I1JuL51lW4

Apr 10, 2024 · 12 likes · 1 share · 142 followers View post →
Biracial Awareness.
@Biraciality_209 · X

Loci associated with skin pigmentation identified in African populations. Genetic evidence indicates that the light pigmentation variant at SLC24A5 was introduced into East African by gene flow from non-Africans. It means light-skin is a non-African trait. https://t.co/UTOsI866Id

Dec 11, 2021 · 6 likes · 2 shares · 503 followers View post →
Biracial Awareness.
@Biraciality_209 · X

Genetic evidence indicates that the light pigmentation variant at SLC24A5 was introduced into East Africa by gene flow from non-Africans. This means that 'light skin' is a non-African trait. https://t.co/u0hUW0DDPW

Dec 11, 2021 · 6 likes · 503 followers View post →
Alex
@waitingfordogot · X

@kleistmeister @LaakeaKalanikoa @DocDutcher @CowboyArthurNZ Ok, where's your evidence? https://t.co/XSu6KZ9BFi

Jul 26, 2025 · 6 likes · 6 followers View post →
JPretellEsq
@JPretellEsq · X

@JamesMe75144932 @AdamRutherford And no, everyone wasn’t dark then. @SarahTishkoff proved that the genetics of both light and dark skin existed in Africa pre OOA. What didn’t exist is North European paleness. https://t.co/LRHnYdL2e8

Sep 15, 2023 · 3 likes · 762 followers View post →

All mentions

D.W. McAliley
@DWMcAliley1791 · X

@SagatSuntorn @CoVet_81 Here's one that shows the specific allele for skin pigmentation was preserved both WITHIN AND WITHOUT of Africa during human migration due to environmental advantage, NOT racial selection. https://t.co/tSpNw3jFmW

Sep 18, 2025 · 4,041 followers View post →
Madelaine Forsythe
@freespeech360 · X

@arealmermaid2 @RadioGenoa This is the actual scientific study . There are plenty of layman's articles explaining what it actually means https://t.co/Uoi10LSchZ

Sep 8, 2025 · 1,484 followers View post →
*vfgfffffff
@hhhhhhbbhhbbbb · X

@razibkhan South Asians and Africans share identical dark skin alleles (We show that variants associated with dark pigmentation in Africans are identical by descent in South Asian and Australo-Melanesian populations.) https://t.co/h4y1Y5iVT3

Aug 2, 2025 · 1,011 followers View post →
Alberto Diaz
@Alberto75553207 · X

@BREIQ_ @AgainUly @pitu_LAJ @iarsuaga «Loci asociados con la pigmentación de la piel identificados en poblaciones africanas» . Science . 358 (6365). doi : 10.1126/science.aan8433 . ISSN  0036-8075 . PMC  5759959. PMID  29025994

Jul 29, 2025 · 694 followers View post →
Alex
@waitingfordogot · X

@kleistmeister @LaakeaKalanikoa @DocDutcher @CowboyArthurNZ Ok, where's your evidence? https://t.co/XSu6KZ9BFi

Jul 26, 2025 · 6 likes · 6 followers View post →
Micah
@MSCJS_BDA · X

@Katepanoakritas @DrugGovoruna @wil_da_beast630 Martin et al (2017): An Unexpectedly Complex Architecture for Skin Pigmentation in Africans Crawford et al (2017): Loci associated with skin pigmentation identified in African populations

Jul 13, 2025 · 1 like · 24 followers View post →
mshoda 088
@Mshoda088 · X

@CromwellianMatt @Thuset1 @shadowstar5727 @lporiginalg Source: National Human Genome Research Institute (NHGRI)-“Africa contains the most genetic diversity of any continent.All non-Africans are descendants of a small group that left Africa.” Source: Science (AAAS)- “Genetic evidence for skin pigmentation” https://t.co/07QVnrfXMq

Jun 17, 2025 · 39 followers View post →
*vfgfffffff
@hhhhhhbbhhbbbb · X

@Yung_Spengler @eyeslasho Dark skin alleles have been around for a long time, and the same is true for some light skin alleles. https://t.co/WVAb9umaN8

Apr 29, 2025 · 1 like · 1,011 followers View post →
د.نموُ
@a25_ni · X

@nohwanah @jenkairi @svvuyi طيب ذا الصدق مافيه اصلا عرق نقي ميه بالميه لازم نسبه ولو فواصل بس بعدين يقربونها ولا تنسين انو اصلاً اصل الانسان لون اسود مع التناسل والتطورات تقدرين حتى تبحثين https://t.co/j3tZogxr8t

Apr 4, 2025 · 27 followers View post →
*vfgfffffff
@hhhhhhbbhhbbbb · X

@Nabayout @Aminesand321 @Mohamed33170238 @Srayain2 طفرات البشرة الداكنة والفاتحة وانتشارها https://t.co/h4y1Y5iVT3 https://t.co/3eCTKKiuwn

Mar 26, 2025 · 1,011 followers View post →
Decoded
@Bygones_24 · X

@obi_obi_7 @rogue_dev_ @Kipkoech_87 @hambonesrevenge @SoulChild868 @inquire6285205 @XhuboE @doktariLongo @newacc1197757 @JBHabbz @LiLNyeriVert @Felosopha Good study https://t.co/svZKzT8aav https://t.co/oCbZNL0J9g

Mar 24, 2025 · 694 followers View post →
Aussie Libertarian Jew
@MinarchistJew · X

@melinated80273 @samjennrr https://t.co/6WmyuyYoma

Feb 5, 2025 · 1,015 followers View post →
Yung Sp€ngler
@Yung_Spengler · X

@eyeslasho https://t.co/AcmQTOS5Va

Dec 15, 2024 · 2 likes · 5,479 followers View post →
Mike
@Mikey234 · X

@kaido544 @Natufian_ @ANFangel2_2 @goodmedtakes @U780_2 @kemetnubiakamp @hhhhhhbbhhbbbb @crypto_drm @iamfozzy27 @DOmowale That's based on a 2017 study on skin pigmentation by Crawford et al. "We show that variants associated with dark pigmentation in Africans are identical by descent in South Asian and Australo-Melanesian populations" Here: https://t.co/mTIzVtr8yN

Oct 17, 2024 · 235 followers View post →
Astral Root
@AstralRoot1 · X

@NandiS234 More cope. https://t.co/KioEXOqdpA

Sep 23, 2024 · 20 followers View post →
Nandiswa
@DreamsOfLuna234 · X

@kenazberkano @Joe__Bassey Yes, the alleles were present in Africans because that's where it originated from, as with most things concerning human beings. Notice the reference heading: "Loci associated with skin pigmentation identified in AFRICAN populations" https://t.co/r5eHoOdSIJ

Sep 5, 2024 · 42 followers View post →
ⒶЯT :
@anarcho_app · X

@darvidosiris https://t.co/DPcP7bvFVv https://t.co/bKOZ8tC63A

Sep 1, 2024 · 1 like · 4,082 followers View post →
Gnosari
@foltfinda · X

@Maina_Poultry Majority? 1901 tu juzi? There would be lots of biracial grandparents, but they’re very rare. So far, scientists have found that the genes associated with lighter skin pigmentation in Africans are not necessarily related to Europeans. https://t.co/I1JuL51lW4

Apr 10, 2024 · 12 likes · 1 share · 142 followers View post →
Stan van Pelt
@stanvanpelt · X

@Focusscience1 Dat er een grote, gestratificiceerde genetische diversiteit bestaat onder mensen, is ook een nobrainer. Maar rassen indelen naar huidskleur is genetisch onzinnig, dat is al lang weerlegd. Er is niet zoiets als ‘de Afrikaan’, ook niet onder de Sahara.Zie bv https://t.co/AIqyzyaEmI

Feb 25, 2024 · 1,106 followers View post →
ⒶЯT :
@anarcho_app · X

@Sisyphuslifts24 https://t.co/DPcP7bv85X https://t.co/K5rJwo12HQ

Feb 20, 2024 · 4,082 followers View post →
Pipe Dream Bandit
@LebronHand41484 · X

@SuhasRe64388406 @hhhhhhbbhhbbbb @JoanFrancescOl1 According to the study "Loci associated with skin pigmentation identified in African populations", Indians, Africans, and Melanesians carry the same gene that causes dark skin. Meaning that those populations did not evolve dark skin independently but rather preserved it.

Jan 29, 2024 · 2 likes · 17 followers View post →
just rams
@jediramza · X

@bowlingnols @Aarvoll_ @michael_ronning Crawford, Nicholas (2017). "Loci associated with skin pigmentation identified in African populations". Science. 358

Jan 9, 2024 · 2,522 followers View post →
Bohdan A. Oryshkevich, MD, MPH
@ykramerezha · X

@aabrooks19 In reality, Africa is composed of multiple dark color 'races.' A genetic study demonstrated not only many pigments but also many genetic causes of skin color. That even includes whites who returned to Africa and became black or brown a second time. https://t.co/zmCYYBZx4E

Dec 10, 2023 · 910 followers View post →
Gert Flimmer
@DRstigmata · X

@LycanNorth @TommyLfgren2 https://t.co/t6ug2p3zjF

Nov 6, 2023 · 133 followers View post →
Diyoza
@EchoG66 · X

https://t.co/XvbkZ5R3r5

Oct 12, 2023 · 213 followers View post →
The Seeker
@parella_anthony · X

RT @Tom_Rowsell: Link to the study https://t.co/VqpIaTZb6M

Sep 22, 2023 · 5 shares · 2,281 followers View post →
القَيْلُ اَلْحَسَيكِي اَلْمَذحِجِي
@I88GX · X

RT @Tom_Rowsell: Link to the study https://t.co/VqpIaTZb6M

Sep 22, 2023 · 5 shares · 1,525 followers View post →
Oliver Fìßķè
@KillInTheWeek92 · X

RT @Tom_Rowsell: Link to the study https://t.co/VqpIaTZb6M

Sep 22, 2023 · 5 shares · 67 followers View post →
Ruby Tumbleweeds Badger
@RubyVonBadger · X

RT @Tom_Rowsell: Link to the study https://t.co/VqpIaTZb6M

Sep 22, 2023 · 5 shares · 5,869 followers View post →
Tom Rowsell
@Tom_Rowsell · X

Link to the study https://t.co/VqpIaTZb6M

Sep 22, 2023 · 60 likes · 5 shares · 58,611 followers View post →
JPretellEsq
@JPretellEsq · X

@JamesMe75144932 @AdamRutherford And no, everyone wasn’t dark then. @SarahTishkoff proved that the genetics of both light and dark skin existed in Africa pre OOA. What didn’t exist is North European paleness. https://t.co/LRHnYdL2e8

Sep 15, 2023 · 3 likes · 762 followers View post →
Thomas Egegaard (Dr. Oak)
@ThomasEgegaard · X

@tv2newsdk Allelerne for både mørk og lys hud har været til stede i vores forfædre inden udviklingen af det moderne menneske. Hvis man f.eks ser på en chimpanse uden hår har den ikke sort hud! https://t.co/Khl6KMFcSc

Jul 20, 2023 · 192 followers View post →
Harry e/acc⏩
@HaroldADunne · X

@tenaharenee @checktheblock @TheConsciousLee If you want to read the paper linked in this article above.. https://t.co/0j16yL7RTN

Apr 6, 2023 · 1,248 followers View post →
The Voo725
@voo725 · X

@Spotlight_Ebony @StriveTheHB @66friendly @PiersUncensored @piersmorgan @kehinde_andrews @TalkTV https://t.co/aSWVbcWVJH

Dec 16, 2022 · 21 followers View post →
#حافظ_مواريث_العرب ابو عبد الرحمن شريفو #Eritrea
@mama1214640613 · X

Article source : https://t.co/vamZvenaNn Study source : https://t.co/jykgKFiOXC

Nov 18, 2022 · 1,638 followers View post →
#حافظ_مواريث_العرب ابو عبد الرحمن شريفو #Eritrea
@mama1214640613 · X

responsible for this palette of tones. In The study titled " Loci associated with skin pigmentation identified in African populations " of 2017 used the DNA Analysis to understand the mechanisms of Colour Skin Changing in the African Populations. The study Analyzed 2092

Nov 18, 2022 · 1,638 followers View post →
#TheSpiderHunter - Black History Is Important!
@Arthur59611540 · X

Light reading 101 Here's the reference paper. Loci associated with skin pigmentation identified in African populations https://t.co/8SUlv66TZu

Nov 3, 2022 · 1 like · 4,115 followers View post →
Farouk
@iaampeppe · X

@S85446269S @lerwa_des_reves @KaydeeNfk @letheoricien228 Une vidéo youtube qui ne fournit pas de sources bibliographique n'est pas gage de véracité. Enfin, voici le lien d'un article scientifique : https://t.co/1d73BbXfHd

Oct 22, 2022 · 7 followers View post →
Barbazooka
@barbazooka · X

@JJAllstar4 @bluecherry124 @salimoujdacity @PatrickEvoo1 @WNtouba @franceinfo Le blanchissement a été fixé par sélection positive sur l'Eurasie, comme l'assombrissement entre les tropiques, et donc aussi en Afrique. Les mélanésiens ne sont pas noirs parce que issus de migrants noirs, mais par sélection positive concourant au sombre. https://t.co/vpW3tAcbUO

Sep 20, 2022 · 314 followers View post →
Fifth Harmony AF
@IoDaTiger · X

@ilovethehuztle @BlackPythagorem @Hassan64495170 @NadirKavkaz @s0s0mi @KMll_4 @hotepspostingls @Charles84614783 @tonyellis888 @TansuYegen This study was the one I was thinking of explaining that the gene that causes light skin (SLC24A5) that’s usually attributed to Europeans was actually brought to East Africa first from the Middle East. https://t.co/6dRo4bttrc

Sep 2, 2022 · 1,008 followers View post →
Alex Carter
@acarts13 · X

@tweetnjules @spreikl @EvansVeris @JoLuehmann wife has a white father, she is lighter than I, but our daughter is darker than both of us. Skin color is way more complicated than you think. https://t.co/H72BnrDALh /4

Aug 2, 2022 · 84 followers View post →
Devin Griffiths
@Devo3000 · X

Populations that emigrated from Africa evolved through selection among the genetic variation *that they packed along with them.* This shows 2 important things. (1) These genes mutated well before emigration, emigrants only reshuffled their ratios. (9/17) https://t.co/GjdGdA3XPb

May 26, 2022 · 2,475 followers View post →
Jotaerre
@joetaerre · X

@Txetxu00 @MayzGilberto @PosadaDisidncia https://t.co/67MfyBkTH9

May 21, 2022 · 5,233 followers View post →
JPretellEsq
@JPretellEsq · X

Loci associated with skin pigmentation identified in African populations https://t.co/LRHnYdL2e8

Jan 28, 2022 · 1 like · 762 followers View post →
Carlos, Castrejo
@Castrejo67 · X

@Qafzeh @NinaJablonski1 @penn_state https://t.co/1KoIFES6Jb https://t.co/0PQm7gUBRm

Jan 20, 2022 · 1,158 followers View post →
LoLo
@twoblackparents · X

RT @Biraciality_209: Loci associated with skin pigmentation identified in African populations. Genetic evidence indicates that the light pi…

Dec 11, 2021 · 2 shares · 129 followers View post →
Biracial Awareness.
@Biraciality_209 · X

Loci associated with skin pigmentation identified in African populations. Genetic evidence indicates that the light pigmentation variant at SLC24A5 was introduced into East African by gene flow from non-Africans. It means light-skin is a non-African trait. https://t.co/UTOsI866Id

Dec 11, 2021 · 6 likes · 2 shares · 503 followers View post →
Biracial Awareness.
@Biraciality_209 · X

Genetic evidence indicates that the light pigmentation variant at SLC24A5 was introduced into East Africa by gene flow from non-Africans. This means that 'light skin' is a non-African trait. https://t.co/u0hUW0DDPW

Dec 11, 2021 · 6 likes · 503 followers View post →
BJ
@THEREALBJ77 · X

A peer reviewed study of how light skin pigmentation was introduced into East Africa by non-africans. Loci associated with skin pigmentation identified in African populations https://t.co/eoRL780wU2

Oct 29, 2021 · 703 followers View post →
François Booream
@BooraemFrancois · X

Important to remember I treat this akin to note taking more than anything else. https://t.co/Iwk9jEbLy2

Mar 18, 2021 · 1 like · 715 followers View post →
Vidya Vedham
@VidyaVedham · X

3/ Loci associated with skin pigmentation identified in African populations https://t.co/5hmBCcvmPn #Juneteenth

Jun 19, 2020 · 263 followers View post →
IIlison
@IIlison · X

@europopwhen @dawnsaffron @Onelifetogive @sairasameerarao This may help. (And the study: https://t.co/DpdRAoPp2g) https://t.co/mFN8YXGyrJ

Aug 7, 2019 · 387 followers View post →
drmounza
@drmounza · X

True. Human pigmentation is complex. Loci associated with skin pigmentation identified in African populations https://t.co/Bpoq3hzfYe Funny how this skepticism never shows up when dealing with other report showing only 1 variant for light skin in #AncientEgypt #DecolonizeScience https://t.co/NQnM3uLYNR

Feb 20, 2019 · 381 followers View post →