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Thread: Breaking down Polynesian DNA components using G25 modelling

  1. #11
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    Quote Originally Posted by BalkanKiwi View Post
    That's interesting. As I've mentioned elsewhere, I'm not greatly knowledgeable in African genetics. Is it normal for North Africans to pick up small amounts of Oceanian? It's as shame those samples aren't in the G25. Does the G25 have any populations that are similar to those?

    Since my initial post, I've been playing around with the FreeForm nMonte (all of those models were done with Poi's Runner). I've found doing FreeForm works better, and leads to a slightly higher percentage if I use English Cornwall instead of English. Here are a few (I believe the Maori sample isn't full Maori). I've played around with modern Chinese populations, and Dongxiang scores the highest with 1.67%. Its also the darkest colored area in China on ph2ter's map. Given its proximity to Taiwan, I'm not sure if its suggestive of migration into the area.

    Code:
     "fit": 1.5418,
        "Irish": 52.5,
        "English_Cornwall": 27.5,
        "Croatian": 17.5,
        "Maori": 2.5,
    
    "fit": 1.3593,
        "Irish": 52.5,
        "English_Cornwall": 30,
        "Croatian": 15.83,
        "Australian": 1.67,
    
       "fit": 1.6359,
        "Irish": 52.5,
        "English_Cornwall": 31.67,
        "Croatian": 13.33,
        "VUT_2900BP_all": 2.5,
    
       "fit": 1.6224,
        "Irish": 53.33,
        "English_Cornwall": 26.67,
        "Croatian": 17.5,
        "TON_2500BP": 2.5,
    
        "fit": 1.374,
        "Irish": 53.33,
        "English_Cornwall": 30,
        "Croatian": 15,
        "Nasoi": 1.67,
    
    "fit": 1.5467,
        "Irish": 52.5,
        "English_Cornwall": 31.67,
        "Croatian": 14.17,
        "Agta": 1.67,
    
    "fit": 1.5637,
        "Irish": 52.5,
        "English_Cornwall": 31.67,
        "Croatian": 14.17,
        "Batak": 1.67,
    
    "fit": 1.5,
        "Irish": 53.33,
        "English_Cornwall": 27.5,
        "Croatian": 17.5,
        "Malayan": 1.67,
    
     "fit": 1.6562,
        "Irish": 52.5,
        "English_Cornwall": 31.67,
        "Croatian": 14.17,
        "Dongxiang": 1.67,
    The Dongxiangs are Muslims who inhabit some parts of Gansu Province in northwestern China and who speak a Mongolic language of a peculiar sort, possibly (though not necessarily) altered through the influence of some substrate language. They are notable for a high degree of male-mediated admixture from Western Eurasia. A sample of Dongxiangs studied by Dan Xu and Shaoqing Wen in "The Silk Road: language and population admixture and replacement" included only the following Eastern Eurasian Y-DNA haplogroups: 6.54% O2a1c-JST002611, 6.54% C2-M217(xM93, P39, M48, M407, P53.1), 5.61% O2a2b1-M134(xM117), 4.67% O2a2b1a1-M117, 2.80% O1b1a1a-M95, 2.80% N1a2b-P43, 2.80% D1a2a-P47, 1.87% D1a1-M15, 1.87% NO-M214(xO-M175, LLY22g), 1.87% O2a2-P201(xM7, P164), 1.87% O1a1-P203, 1.87% Q1a1-M120/N14, 0.93% Q1a-MEH2(xM120, M25, M346), 0.93% N1a1a-M178, and 0.93% O1b-M268/P31(xPK4, M176) for a total of 43.91% Y-DNA of Eastern Eurasian origin or affinity. (Of course, the Q subclades may also be considered to be ultimately of Western Eurasian origin.)

    The remainder of this sample of Dongxiang males belonged to J-M304 (16.82%), R1a-M17 (14.02%), R2a-M124 (9.35%), G-M201 (5.61%), E-M96 (3.74%), H-M69 (1.87%), R1b1b1-M73 (1.87%), R1b1b2-M269 (0.93%), I (0.93%), and L (0.93%).
    Last edited by Ebizur; 05-28-2020 at 04:42 PM.

  2. #12
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    Quote Originally Posted by Ebizur View Post
    The Dongxiangs are Muslims who inhabit some parts of Gansu Province in northwestern China and who speak a Mongolic language of a peculiar sort, possibly (though not necessarily) altered through the influence of some substrate language. They are notable for a high degree of male-mediated admixture from Western Eurasia. A sample of Dongxiangs studied by Dan Xu and Shaoqing Wen in "The Silk Road: language and population admixture and replacement" included only the following Eastern Eurasian Y-DNA haplogroups: 6.54% O2a1c-JST002611, 6.54% C2-M217(xM93, P39, M48, M407, P53.1), 5.61% O2a2b1-M134(xM117), 4.67% O2a2b1a1-M117, 2.80% O1b1a1a-M95, 2.80% N1a2b-P43, 2.80% D1a2a-P47, 1.87% D1a1-M15, 1.87% NO-M214(xO-M175, LLY22g), 1.87% O2a2-P201(xM7, P164), 1.87% O1a1-P203, 1.87% Q1a1-M120/N14, 0.93% Q1a-MEH2(xM120, M25, M346), 0.93% N1a1a-M178, and 0.93% O1b-M268/P31(xPK4, M176) for a total of 43.91% Y-DNA of Eastern Eurasian origin or affinity. (Of course, the Q subclades may also be considered to be ultimately of Western Eurasian origin.)

    The remainder of this sample of Dongxiang males belonged to J-M304 (16.82%), R1a-M17 (14.02%), R2a-M124 (9.35%), G-M201 (5.61%), E-M96 (3.74%), H-M69 (1.87%), R1b1b1-M73 (1.87%), R1b1b2-M269 (0.93%), I (0.93%), and L (0.93%).
    Yes, a shared Western Eurasia ancestor makes more sense. The other Chinese populations I only get noise levels for (0.83%), so your answer seems more logical than through Polynesian migration.
    Ancestry on paper: English, Scottish, Irish, Welsh, Croatian, Ashkenazi, Polish and Māori.

  3. #13
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    Quote Originally Posted by BalkanKiwi View Post
    That's interesting. As I've mentioned elsewhere, I'm not greatly knowledgeable in African genetics. Is it normal for North Africans to pick up small amounts of Oceanian? It's as shame those samples aren't in the G25. Does the G25 have any populations that are similar to those?
    No there are no other similar populations.

    I only saw 2 NA who scored about 1% oceanian on AncestryDNA. That's not groundbreaking.Must be noise.

  4. #14
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    Quote Originally Posted by Hurricane View Post
    No there are no other similar populations.

    I only saw 2 NA who scored about 1% oceanian on AncestryDNA. That's not groundbreaking.Must be noise.
    Indeed. The only was to be sure otherwise would be to see if there are any Oceanian like segments on a chromosome painting, and/or see if you get any Polynesian matches, but its unlikely with around 1% or less (as in my case).
    Ancestry on paper: English, Scottish, Irish, Welsh, Croatian, Ashkenazi, Polish and Māori.

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    Does anyone know how Malagasy fit into this? Are they Austronesian or other Asian?

  6. #16
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    Quote Originally Posted by uflakmoon View Post
    Does anyone know how Malagasy fit into this? Are they Austronesian or other Asian?
    The Malagasy are mostly a mix of Austronesian and East African.
    Ancestry on paper: English, Scottish, Irish, Welsh, Croatian, Ashkenazi, Polish and Māori.

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