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Thread: Mean Melanin Index for select South Asian populations

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    Mean Melanin Index for select South Asian populations

    Note:UPDATED with more UP+Bihar groups from a separate table in the same study. I consolidated the results together and sorted by average melanin index

    FYI from one of Razibs recent posts. http://www.brownpundits.com/2018/11/...-asian-groups/

    A random assortment of populations that excludes the NW (except Haryana Ror) and Bengal

    Sorted by mean melanin index (higher equals more melanin equals darker skin colour):

    I have highlighted the castes that are above the African threshold of melanin Predominantly African ancestry populations have melanin indices >50



    The paper mentioned that 42% of the skin color variation in the data can be explained by caste. which is under what I expected

    FYI the Yadava are a Tamil caste unrelated to UP Yadavs
    Last edited by bmoney; 11-19-2018 at 10:20 AM.

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    Interesting observation that the Southern Yadavs have nothing to do with the Northern Yadavs. Do we have any Harrapa for either of these communities? Now that I've taken interest in caste, this might be more proof of people changing last name for status.

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    Quote Originally Posted by agent_lime View Post
    Interesting observation that the Southern Yadavs have nothing to do with the Northern Yadavs. Do we have any Harrapa for either of these communities? Now that I've taken interest in caste, this might be more proof of people changing last name for status.
    UP Yadavs aren't considered high caste at all (they are OBC) but my guess is that they would score like UP Kshatriyas

    up-kshatriya
    metspalu
    7
    S Indian 45%
    Baloch 37%
    Caucasian 4%
    NE Euro 8%
    SE Asian 1%
    Siberian 1%
    NE Asian 0%
    Papuan 0%
    American 1%
    Beringian 0%
    Mediterranean 2%
    SW Asian 0%
    San 0%
    E African 0%
    Pygmy 0%
    W African 0%

    So Tamil Yadavas are probably a cowherd caste that adopted their title based on occupation. Something like this https://en.wikipedia.org/wiki/Konar_(caste)

    A similar herder caste also falling within the Yadav 'caste' in Karnataka https://en.wikipedia.org/wiki/Lingayatism

    Konkan/Marathi https://en.wikipedia.org/wiki/Gowari

    Marathi https://en.wikipedia.org/wiki/Dhangar

    Hindi https://en.wikipedia.org/wiki/Ahir

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    I'm not sure about validity of this melanine index.
    Poles are said in this paper to have slightly higher index (29.9) than Portugese (29.7).
    From simple reasoning it is impossible...

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    Quote Originally Posted by lukaszM View Post
    I'm not sure about validity of this melanine index.
    Poles are said in this paper to have slightly higher index (29.9) than Portugese (29.7).
    From simple reasoning it is impossible...
    Yeah not sure how the melanin index was construed.

    There was also an allele analysis for South Asians including NW South Asians in the supplementary materials. 'A' means a lighter skin effect and 'G' means darker


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    Quote Originally Posted by lukaszM View Post
    I'm not sure about validity of this melanine index.
    Poles are said in this paper to have slightly higher index (29.9) than Portugese (29.7).
    From simple reasoning it is impossible...
    Are you sure? I lived abroad for a while and though I didn't meet any Portuguese people, my Polish friends certainly had a yellowish hue to them, which is generally quite common in Eastern Europeans (North to South). NW Europeans, not all of them obviously, are usually more pinkish and I don't know if this applies to the Portuguese too. But one can easily tell the difference with the naked eye.
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    Quote Originally Posted by lukaszM View Post
    I'm not sure about validity of this melanine index.
    Poles are said in this paper to have slightly higher index (29.9) than Portugese (29.7).
    From simple reasoning it is impossible...
    What is this reasoning? Living in the states at least anecdotally Poles and Portuguese seemed very similar. I met more Poles though. Poland is also a colder country than Portugal; epigentics and harsher winter change looks long term. Just in South Asia the Kashmiris have selected A on both alleles by preference for lighter skin. On the other hand Haryana jats who have much more N Euro and comparable Caucasian don't always look different from their mid caste gangetic plains neighbors.

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    Interesting that (Bihar) Jha are crossing the "threshold" into the darker territory... Jha are a big/influential community in Nepal as well(traditionally Brahmins from the plains have been much higher educated), unlike other Madhesi people traditionally. The skin pigmentation range amongst them is HUGE from my observation. There are really dark individuals and there are relatively much lighter ones.

    I will post some in the phenotype thread (so not to litter it here).

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    Is it just me or -- at least in the Gangetic plains -- caste affiliation has almost REVERSE effect on the melanin index. In that list, I see upper caste Biharis being darker than others. Like Sharma/Pandit/Thakur Biharis being darker than the Dalits (scheduled caste).

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