Somali Phenotype

Discussion in 'Anthropology & Genetics' started by Finesse, Aug 18, 2019.

  1. Finesse

    Finesse

    Joined:
    Feb 16, 2019
    Messages:
    1,427
    Ratings:
    +3,741
    Would someone be so kind as to explain what our phenotype tends to be and how it came about?

    Most Somalis tend to be tall/slender with elongated features and high foreheads

    I have noticed, that in some areas, people are shorter, stouter with more rounded features. For instance, people who live in more fertile areas in Somalia.

    Is this due to diet? Climates?
     
    • Like Like x 1
  2. Apollo

    Apollo Staff Member Moderator

    Joined:
    Aug 25, 2015
    Messages:
    18,988
    Ratings:
    +34,621
    Phenotype is determined by genetics mostly. Environment only has some minor influence like on your height (childhood nutrition) and perhaps that one is tanned or untanned depending on location (global north vs tropics), but nothing more than that really (excluding use of cosmetics).
     
    • Like Like x 3
  3. land owner

    land owner

    Joined:
    May 3, 2019
    Messages:
    1,710
    Ratings:
    +3,701
    I thought our tall and slender phenotype came mainly from our proto nilo ancestors that developed in the semi arid savannas, are you referring to racial phenotype or current individual physical traits?
     
    • Like Like x 3
  4. Pseudo-A'staramaia

    Pseudo-A'staramaia

    Joined:
    Apr 2, 2019
    Messages:
    58
    Ratings:
    +65
    Our non-Eurasian ancestry isn't proto-Nilote, as we don't have Nilotic ancestors. Our Ancestral East African is not a actual component, and it does not represent any actual ancestral population. Once you look closer, you see it that it was never a single population, but represents several layers of admixture from several different populations through tens of thousands of years that is now grouped together simply because people don't care much about non-Eurasian DNA. It should only be taken to mean "non-Eurasian"

    AEA as a sham component would support the diversity of Somali mtdna, one of the most diverse in the world. Our mtdna has relatively equal levels of M, L2, L0, and N. Only L4, L1, and particularly L6 are rare in Somalis

    About our height and build, evolution isn't a one time thing, and populations are always having new traits introduced and selected. It has been around 4,000 years since we had any significant injection of non-Cushitic admixture. But I would point out that Somalis are very similar in build and crania to proto-Egyptian Naqadans, and are probably not even far from the paleolithic Ibermaurusian of Northwest Africa

    Antithetical to what people here love to state as fact - Somalis and Cushitic peoples are not the result of Natufians + Nilotes. The Natufians had very different ydna from us, and their mtdna was not as similar. They were a local Levant/Mesopotamian HG population that had admixed with a wave of migrating northeast African HG's. We may have ancestry from them, but since M1 is the largest Eurasian mtdna we have, it makes more sense that our Eurasian ancestry was in Africa long prior to the Natufians, and is shared with the Ibermaurusians. The Natufians also had mtdna L2, so it probably wasn't only paternal northeast African ancestry that they had

    It makes sense that Somali phenotype was heavily impacted by selection. The South Cushites were probably lighter than us. A a half-Nilote, half-Arab population would probably be lighter than us, since most half-South Sudanese don't resemble Somalis at all, but alot of fine featured Nilotes and blacker skinned South Arabians tend to
     
    • Informative Informative x 1
  5. Apollo

    Apollo Staff Member Moderator

    Joined:
    Aug 25, 2015
    Messages:
    18,988
    Ratings:
    +34,621
    It mostly derives from the region of Sudan, so his usage of proto-Nilote is largely correct. It may be a mixture of various deeper components, but the majority of the Sub-Saharan African component in Somalis ultimately mostly stems from Nilo-Saharan-like populations from Sudan.

    It is also phylogenetically and even autosomally very different from the Paleo-Somali component that was acquired later on by proto-Somalis when they migrated into Somalia from Northeast Sudan/West Eritrea. Soon a Paleo-Somali sample will be sequenced and you will see for yourself.

    The Nilotic South Sudanese have 20-30% more West-Central African ancestry than the proto-Nilote component (yes, usage of this term is correct) found in Somalis. So they are *not* representative of that element.

    And most ''fine featured'' Nilotes have clear Cushitic admixture, so that doesn't count. As for dark skinned South Semitic Arabians like the Soqotri, they have absolutely nothing to do with Cushites really and are just a bunch of inbred Arabians/Semites living on a small island affected by a strong founder effect.
     
    • Like Like x 2
  6. pablo

    pablo Dulbahante Darood

    Joined:
    Sep 4, 2018
    Messages:
    869
    Ratings:
    +1,924
    Gods favourites
     
  7. saredochani10

    saredochani10

    Joined:
    Jul 19, 2019
    Messages:
    940
    Ratings:
    +1,782
    @Apollo you seem very educated in this subject. Did you study this in Uni or just read a lot about it ?
     
  8. Apollo

    Apollo Staff Member Moderator

    Joined:
    Aug 25, 2015
    Messages:
    18,988
    Ratings:
    +34,621
    Self-taught, it's quite easy. I just read population genetics journals over the years.
     
    • Like Like x 2
  9. CaliTedesse

    CaliTedesse صومال ابن كوش

    Joined:
    Sep 10, 2018
    Messages:
    6,496
    Ratings:
    +9,403
    Its obvious proto Nilote slender tall built
     
  10. EDsomali

    EDsomali Dheeftiinu Waa Calan

    Joined:
    Jan 18, 2018
    Messages:
    1,164
    Ratings:
    +1,660
    It's due to our ancestry.
     
    • Like Like x 1
  11. World

    World VIP

    Joined:
    Jul 20, 2017
    Messages:
    8,078
    Ratings:
    +15,026
    Somalis are skinnier than nilo saharans.

    It could be because of our proto horner ancestry and we selected further for it.
     
    • Informative Informative x 3
  12. Somalinimo

    Somalinimo

    Joined:
    Jul 2, 2019
    Messages:
    436
    Ratings:
    +432
    Apparently we're:

    Dark reddish-brown skin, curly to tight-curly hair. (Rather) tall, brachyskelic, ectomorph. Dolichocephalic, orthocranic. (Hyper-)leptorrhine and high, straight or convex nose - the narrowest of Sub-Saharan Africa. Face long and oval with gracile, soft features, jaw very narrow, large eyes with full lips. Body hair is scarce, the occiput round, prognathism is absent.
     
Verification:
Draft saved Draft deleted
Loading...

Share This Page