Page 1 of 3 123 LastLast
Results 1 to 10 of 21

Thread: My attempt at modelling of Native American Global 25 samples from Latin America.

  1. #1
    Registered Users
    Posts
    499
    Sex
    Omitted

    Smile My attempt at modelling of Native American Global 25 samples from Latin America.

    It will be mainly about Mesoamerican, Amazonian, Andean and Southern Cone Native American groups. I will do Northern Amerindian groups in another post. These are the averages btw, not individual samples.

    Warning: the post will be very long, please have a patience looking at the results and give your opinions.

    Notes:
    -The CAN_400BP is an individual Native American sample from Canada.
    -Spirit_Cave individual is the oldest mummy in North America while Anzick is a Paleo-Indian infant sample from Montana, USA.
    -The Great Andamanese is utilized as a proxy to determine the Negrito affinity in some Amerindians (some Natives such as Amazonian tribes were founded to have Onge/Melanesian-like affinity).
    -MayahakCabPek is a 9300 year old Neolithic sample from Belize.
    -LapoDoSanto is an Early Neolithic sample from Brazil (almost Ice-Age)
    -Karitiana is utilize to represent Amazonian ancestry.
    -Andean components are represented by Aconcagua_500BP (before present) from precolonial Argentina, RioUncallane and Lauricocha from ancient Peru.
    -LosRieles are archaic (10900 years before present) samples from Central Chile
    -Ayayema is from Late Neolithic Patagonia in Chile- utilized as proxy for Patagonian-related ancestry
    -ArroyoSeco2 is a Neolithic sample from near Tres Arroyos in Argentina- maybe can represent Pampean affinity.

    Here are some Mesoamerican tribes (from Northern to Southern Mexico)

     

    The average result of the Pima tribe from SW USA/Northern Mexico (uncertain whether the samples are from US or Mexico) . Only 0.2% Iberian admixture. But keep in mind that these are the average, individual samples might varied in European admixture. 1% Negrito (Great Andamanese)-related affinity. Its interesting how the Pima seem to be able to modelled as a mix of Southwest US Amerindian (Chumash)+Northern Native (Can_400BP+Spirit_Cave)+Central American (MayahakCabPek), Amazonian (Karitiana) and Late Stone Age/Mesolithic Brazilian (Sumidouro). Also traceable amounts of 0.2% Papuan/Oceanic.

    Target: Pima
    Distance: 1.3060% / 0.01306024
    51.2 USA_Island_Chumash_SanCruz
    12.8 Karitiana
    12.4 CAN_400BP
    10.6 BLZ_MayahakCabPek_9300BP
    8.0 BRA_Sumidouro_10100BP
    3.6 USA_Spirit_Cave_11000BP
    1.0 IND_Great_Andamanese_100BP
    0.2 Papuan
    0.2 Spanish_Soria


    The average result of Pericues (only three individuals in G25), the precolonial Native American inhabitants of Baja California, Mexico who have been extinct since the 19th century: autosomally mostly Southwest US Native (Chumash) followed by Early Neolithic Brazilian (LapaDoSanto), prominent proportions of Central American (MayahakCabPek) and Northern Amerind (Spirit_Cave+CAN_400BP). The hilarious aspect is that they seem to also possessed 3.4% European admixture but I am unsure if it this "Euro" is actually ANE/archaic West Eurasian ancestry or actual Iberian admixture. Also miniscule Negrito and Papuan/Oceanic which could be noise or some type of unknown gene flow from South Asia/Melanesia.

    Target: MEX_Pericues
    Distance: 1.4762% / 0.01476179
    53.8 USA_Island_Chumash_SanCruz
    14.0 BRA_LapaDoSanto_9600BP
    13.2 BLZ_MayahakCabPek_9300BP
    11.2 USA_Spirit_Cave_11000BP
    3.6 CAN_400BP
    3.4 Spanish_Extremadura
    0.4 IND_Great_Andamanese_100BP
    0.4 Papuan

    Here is a Huichol individual (unfortunately only 1 sample in G25): Seems very genetically unique compared to most Amerindians in the region; having Spirit_Cave ancestry as the main component, also small amounts of Anzick and completely lack Southwest USA (Chumash) admixture. Zero European and 1% Negrito (Great Andamanese)-like affinity.

    Target: Huichol
    Distance: 1.3742% / 0.01374182
    44.2 USA_Spirit_Cave_11000BP
    38.6 BRA_LapaDoSanto_9600BP
    8.6 CAN_400BP
    7.6 USA_Anzick
    1.0 IND_Great_Andamanese_100BP

    Here is also a Nahua individual (like the Huichol, only one sample in G25) from Central Mexico: also mostly Southwest US (Chumash) with Northern Amerindian (CAN_400BP+Spirit_Cave)+Amazonian (Karitiana) and some Central American (MayahakCabPek) ancestry. Its weird how this Nahua, has lower Central American admixture than the Pima, who are located much further north. Also approximately 2.6% Euro.

    Target: Nahua
    Distance: 1.2075% / 0.01207522
    51.8 USA_Island_Chumash_SanCruz
    16.4 Karitiana
    13.4 CAN_400BP
    11.8 USA_Spirit_Cave_11000BP
    4.0 BLZ_MayahakCabPek_9300BP
    2.4 Spanish_Soria
    0.2 Spanish_Extremadura


    Here is the average Mixe from Central-Southern Mexico: a mix of Southwest USA (Chumash)+Early Neolithic Brazilian (LapaDoSanto)+Northern Amerindian (CAN_400BP+Spirit_Cave)+Central American (MayahakCabPek) and Amazonian (Karitiana) ancestry. Zero Iberian/European admixture.

    Target: Mixe
    Distance: 1.8627% / 0.01862704
    22.0 USA_Island_Chumash_SanCruz
    19.2 BRA_LapaDoSanto_9600BP
    19.2 USA_Spirit_Cave_11000BP
    15.0 BLZ_MayahakCabPek_9300BP
    14.2 Karitiana
    10.4 CAN_400BP

    The average Mixtec from Southern Mexico has similar autosomal profile to the Mixe, but much higher Early Neolithic Brazilian (LapaDoSanto) and much lower Amazonian (Karitiana) which is odd. Possesss 4% European and traceable Papuan/Oceanic but could be noise.

    Target: Mixtec
    Distance: 1.1135% / 0.01113511
    33.6 USA_Island_Chumash_SanCruz
    32.6 BRA_LapaDoSanto_9600BP
    20.2 USA_Spirit_Cave_11000BP
    6.6 Karitiana
    2.4 CAN_400BP
    2.2 Spanish_Soria
    1.8 Spanish_Extremadura

    0.6 Papuan

    The average Zapotec result from Southern Mexico: higher Neolithic Brazilian but lower Southwest US Native, notable amount of Central American, low Amazonian and minor Mesolithic Brazilian and Northern Amerindian. Also around 3.6% European and 1% Negrito-related admixture.

    Target: Zapotec
    Distance: 1.2985% / 0.01298486
    29.8 BRA_LapaDoSanto_9600BP
    22.8 USA_Island_Chumash_SanCruz
    21.8 USA_Spirit_Cave_11000BP
    13.6 BLZ_MayahakCabPek_9300BP
    4.8 Karitiana
    3.6 Spanish_Extremadura
    1.6 BRA_Sumidouro_10100BP
    1.0 CAN_400BP
    1.0 IND_Great_Andamanese_100BP

    The average Mayan result from Guatemala: similar case to Pima and Nahua in being dominated by the Southwest US Native (Chumash) and Amazonian (Karitiana) but much lower Northern Amerindian (Spirit_Cave+barely traceable CAN_400BP). What's peculiar is that the Central American (MayahakCabPek) is very low when one would expected it to be the main ancestral component of the Mayans. Also noteworthy proportions of Mesolithic Brazilian (Sumidouro) and some Early Neolithic Brazilian (LapoDoSanto). Anyway, has around 4.2% European.

    Target: Mayan
    Distance: 0.8963% / 0.00896288
    37.0 USA_Island_Chumash_SanCruz
    20.2 Karitiana
    14.2 USA_Spirit_Cave_11000BP
    10.4 BLZ_MayahakCabPek_9300BP
    10.2 BRA_Sumidouro_10100BP
    4.2 Spanish_Extremadura
    3.6 BRA_LapaDoSanto_9600BP
    0.2 CAN_400BP


    Next, I will post Caribbean and Northern South American/Amazonian Natives.

     

    A Taino individual from pre-Hispanic Puerto Rico (once again, only one sample in G25 unfortunately): seem to be mostly Amazonian with significant Central American, lower Southwest US Native and Northern Amerindian. Also demonstrates negligible amounts of African which could be noise or some archaic unknown admixture.

    Target: BHS_Taino
    Distance: 1.6415% / 0.01641507
    61.6 Karitiana
    20.0 BLZ_MayahakCabPek_9300BP
    10.6 USA_Island_Chumash_SanCruz
    7.2 USA_Anzick
    0.6 Esan_Nigeria

    Precolonial Native Americans from Puerto Rico during Ceramic Age (don't know their ethnicity/tribe but is possibly the ancestors of the Carib and Taino): Mostly Amazonian with significant Central American, Early Neolithic Brazilian, smaller amounts of Southwest US Native and minor Mesolithic Brazilian. Also traceable African which could be noise or some unknown archaic admixture.

    Target: BHS_Ceramic
    Distance: 0.6930% / 0.00692971
    48.8 Karitiana
    26.0 BLZ_MayahakCabPek_9300BP
    15.2 BRA_LapaDoSanto_9600BP
    8.0 USA_Island_Chumash_SanCruz
    1.4 BRA_Sumidouro_10100BP
    0.4 Esan_Nigeria
    0.2 USA_Spirit_Cave_11000BP

    Precolonial Amerindians from Dominican Republic during Ceramic Age (probably the ancestors of the Carib and Taino): slightly more Amazonian than the Puerto Rican Ceramic (BHS_Ceramic) individuals, lower Central American, Early Neolithic Brazilian, but higher Northern Amerindian and even lower Southwest US Native ancestry. Negligible amount of Mesolithic Brazilian, African and Papuan/Oceanic (the latter two is possibly some archaic admixture or unknown link with Melanesia).

    Target: DOM_southeast_Ceramic
    Distance: 0.8535% / 0.00853495
    51.6 Karitiana
    19.8 BLZ_MayahakCabPek_9300BP
    13.8 BRA_LapaDoSanto_9600BP
    9.4 USA_Spirit_Cave_11000BP
    3.6 USA_Island_Chumash_SanCruz
    1.0 BRA_Sumidouro_10100BP
    0.6 Esan_Nigeria
    0.2 Papuan

    Piapoco Amerindians from the Amazon area of Colombia: genetically almost identical to the Taino individual but possessed Northern Amerindian and lower Southwest US Native unlike the latter. Also miniscule African affinity which again, could be just archaic admixture or noise.

    Target: Piapoco
    Distance: 1.0566% / 0.01056626
    62.8 Karitiana
    20.4 BLZ_MayahakCabPek_9300BP
    11.0 USA_Spirit_Cave_11000BP
    5.4 USA_Island_Chumash_SanCruz
    0.4 Esan_Nigeria

    Lonely Yukpa sample (only one individual in G25) from Northern South America (don't know whether it is from Colombia or Venezuela): predominantly Amazonian but very substantial Southwest US Native-related admixture and low Central American. The individual shows negligible signals of Papuan which would be noise or archaic link with Oceania. 0.4% Euro which could be authentic Iberian admixture or just noise.

    Target: Yukpa
    Distance: 1.7506% / 0.01750582
    63.6 Karitiana
    29.0 USA_Island_Chumash_SanCruz
    6.4 BLZ_MayahakCabPek_9300BP
    0.6 Papuan
    0.4 Spanish_Extremadura

    Average Surui from Brazil's Amazon: pure Amazonian (literally 100% identical to the Karitiana).

    Target: Surui
    Distance: 1.9183% / 0.01918270
    100.0 Karitiana

    The average result of the Cachi/Chachi, a Native American rainforest dwelling tribe from Northern coast of Ecuador: a mix of Andean (RioUncallane+Aconcagua)+Amazonian (Karitiana)+Mesolithic Brazilian (Sumidouro)+Pampean (ArroyoSeco) and minor Central American (MayahakCabPek) ancestries. Have 4.2% Euro and almost negligible African (which could be noise, archaic admix or actual ancestry if there were African runaway slaves in Ecuador) and Papuan.

    Target: Cachi
    Distance: 0.7122% / 0.00712170
    44.2 PER_RioUncallane_1800BP
    22.8 Karitiana
    8.2 ARG_Aconcagua_500BP
    8.2 ARG_ArroyoSeco2_7700BP
    7.8 BRA_Sumidouro_10100BP
    4.2 Spanish_Extremadura
    3.8 BLZ_MayahakCabPek_9300BP
    0.6 Esan_Nigeria
    0.2 Papuan


    In the next section, it will be Andean Native Americans.

     

    The average Quechua result from Peru: mostly Andean (Aconcagua+RioUncallane+Lauricocha) with Amazonian, Southwest US Native-related ancestry. Has 9.6% European which is one of the highest among the Latin American Native samples in G25. Negligible African which could be from slave ancestry or come from the Iberian admixture (Spaniards has very tiny SSA/North African-like affinity) and Papuan (could be noise or some archaic admixture/link).

    Target: Quechua
    Distance: 0.7741% / 0.00774056
    29.6 ARG_Aconcagua_500BP
    20.0 Karitiana
    16.0 PER_RioUncallane_1800BP
    14.4 USA_Island_Chumash_SanCruz
    9.8 PER_Lauricocha_8600BP
    5.0 Spanish_Extremadura
    4.6 Spanish_Soria
    0.4 Esan_Nigeria
    0.2 Papuan

    Average result of three Bolivians from La Paz (could be Aymara): predominantly Andean (RioUncallane+Aconcagua) with notable amounts of Pampean (ArroyoSeco). Around 2.6% Euro and negligible Amazonian (surprising because the Quechua from Peru shows good proportions of Amazonian-like admixture).

    Target: Bolivian_LaPaz
    Distance: 1.2349% / 0.01234893
    54.4 PER_RioUncallane_1800BP
    30.0 ARG_Aconcagua_500BP
    12.4 ARG_ArroyoSeco2_7700BP
    2.6 Spanish_Extremadura
    0.6 Karitiana

    Lonely Bolivian result from Cochabamba (could be Aymara or Quechua, don't know): a mix of Andean, significant Amazonian and Mesolithic Brazilian. Also negligible African (possibly actual slave ancestry or comes from Iberian admixture) and Papuan (archaic admix/ancient link with Oceania).

    Target: Bolivian_Cochabamba
    Distance: 1.5733% / 0.01573301
    56.8 PER_RioUncallane_1800BP
    21.2 Karitiana
    12.8 BRA_Sumidouro_10100BP
    7.8 Spanish_Extremadura
    0.8 Esan_Nigeria
    0.6 Papuan

    Average result of Bolivians from Pando (not sure the ethnicity), the Amazonian far north region of the country: Almost purely Andean with some Northern Amerindian (Spirit_Cave). Its really weird how these samples despite being from the Amazon, doesn't show any Karitiana admixture. Maybe they are recent migrants to the region from the Andes. Approximately 11% Euro which is the highest among the Latin American Native G25 samples. 0.8% African which could come from Iberian ancestry (since Spaniards already have minor SSA/North African-like affinity) or actual slave admixture.

    Target: Bolivian_Pando
    Distance: 0.9458% / 0.00945823
    46.4 ARG_Aconcagua_500BP
    37.6 PER_RioUncallane_1800BP
    10.8 Spanish_Extremadura
    4.4 USA_Spirit_Cave_11000BP
    0.8 Esan_Nigeria

    Aymara individual (only one sample in G25); not sure if it is from Southern Peru/Bolivia or Northern Chile: a mix of Andean+Araucanian (LosRieles)+Pampean (ArroyoSeco), has lower Amazonian than the average Quechua result and minor Central American. 0.6% Euro and no African.

    Target: Aymara
    Distance: 1.4232% / 0.01423195
    37.0 PER_RioUncallane_1800BP
    19.0 CHL_LosRieles_10900BP
    18.2 ARG_Aconcagua_500BP
    17.8 Karitiana
    5.2 ARG_ArroyoSeco2_7700BP
    2.2 BLZ_MayahakCabPek_9300BP
    0.6 Spanish_Soria


    The average Colla result from Andean region of Northwest Argentina: mostly Andean with notable Patagonian (Ayayema), much lower Amazonian than Quechua and Aymara, minor Mesolithic Brazilian and Southwest US Native. Has almost 4% Euro and almost zero African (could be noise or some spilling from Iberian admixture).

    Target: Colla
    Distance: 1.0504% / 0.01050414
    46.0 ARG_Aconcagua_500BP
    23.0 PER_RioUncallane_1800BP
    10.6 CHL_Ayayema_5100BP
    9.4 Karitiana
    3.8 BRA_Sumidouro_10100BP
    3.8 Spanish_Soria
    3.2 USA_Island_Chumash_SanCruz
    0.2 Esan_Nigeria


    In the last section, here are Native Americans from the Pampas and Patagonia.

     

    The average result of Wichi tribe from Northern Argentina: a hybrid of Amazonian, Andean (Aconcagua+Lauricocha+RioUncallane) and Patagonian (Ayayema) ancestries. No Euro or African. Its peculiar how there is zero Pampean (ArroyoSeco) despite being from the Pampas region.

    Target: Wichi
    Distance: 1.0896% / 0.01089573
    37.2 Karitiana
    25.2 ARG_Aconcagua_500BP
    14.6 PER_Lauricocha_8600BP
    13.8 CHL_Ayayema_5100BP
    9.2 PER_RioUncallane_1800BP

    The average of two Kaweskar individuals from Chilean Patagonia: a hybrid of Northern Amerindian (Spirit_Cave+Anzick)+Andean (RioUncallane+Aconcagua)+Amazonian and minor Pampean (ArroyoSeco), Patagonian (Ayayema), Mesolithic Brazilian. Very strange how they hardly score Patagonian (Ayayema) ancestry. Traceable Negrito and Papuan which is noise level or archaic admixture/link to Oceania/South Asia.

    Target: CHL_Kaweskar_1000BP
    Distance: 1.2860% / 0.01286022
    29.2 USA_Spirit_Cave_11000BP
    28.0 PER_RioUncallane_1800BP
    18.0 Karitiana
    9.2 ARG_Aconcagua_500BP
    9.0 USA_Anzick
    2.8 ARG_ArroyoSeco2_7700BP
    1.4 CHL_Ayayema_5100BP
    1.2 BRA_Sumidouro_10100BP
    0.6 IND_Great_Andamanese_100BP
    0.6 Papuan

    The average result of two Yamana/Yaghans from Chilean Patagonia: a mixture of Andean+Northern Native (Anzick+Spirit_Cave)+Central American+Southwest US Native. Also no Patagonian ancestry which is strange. 0.2% African which could be noise or some archaic affinity.

    Target: CHL_Yamana_1000BP
    Distance: 1.3191% / 0.01319138
    53.2 PER_RioUncallane_1800BP
    14.6 USA_Anzick
    11.4 USA_Spirit_Cave_11000BP
    10.2 BLZ_MayahakCabPek_9300BP
    9.4 USA_Island_Chumash_SanCruz
    1.0 ARG_Aconcagua_500BP
    0.2 Esan_Nigeria

    Average result of two unknown individuals (don't know the tribal affiliation) from Chilean Patagonia: a mix of Pampean (ArroyoSeco)+Andean+Araucanian (LosRieles)+low Northern Amerindian. 1.6% Negrito and minor African and European which could be noise or archaic admixture/affinity to South Asia.

    Target: CHL_Fuego_Patagonian
    Distance: 2.3256% / 0.02325648
    34.0 ARG_ArroyoSeco2_7700BP
    32.8 ARG_Aconcagua_500BP
    22.8 CHL_LosRieles_10900BP
    6.2 USA_Spirit_Cave_11000BP
    2.2 CAN_400BP
    1.6 IND_Great_Andamanese_100BP
    0.2 Esan_Nigeria
    0.2 Spanish_Extremadura

    Lastly, the average result of four unknown individuals (don't know their ethnic or tribal affiliation) from the southernmost tip of Argentina: a peculiar mixture of Andean (RioUnCallane)+Central American (MayahakCabPek)+Neolithic Brazilian (LapaDoSanto)+Patagonian (Ayayema)+Amazonian and minor Northern Native (CAN_400BP) ancestry. Also minor signals of African and Papuan but very likely just noise. Very strange how the Patagonian ancestry is lower than the Andean, Central American and Neolithic Brazilian. Also noise levels of African and Papuan which could be noise or archaic affinity.

    Target: ARG_Fuego_Patagonian
    Distance: 1.1085% / 0.01108481
    32.2 PER_RioUncallane_1800BP
    21.0 BLZ_MayahakCabPek_9300BP
    16.4 BRA_LapaDoSanto_9600BP
    13.4 CHL_Ayayema_5100BP
    9.4 Karitiana
    3.8 BRA_Sumidouro_10100BP
    3.4 CAN_400BP
    0.2 Esan_Nigeria
    0.2 Papuan


    Thoughts?? Sorry for the very long post but please take a patience inspecting them.

  2. The Following 13 Users Say Thank You to Tsakhur For This Useful Post:

     Angoliga (11-02-2020),  Atlas (08-28-2020),  btree (11-13-2020),  Caius Agrippa (08-30-2020),  drobbah (08-30-2020),  Lenny Nero (10-11-2020),  lilac9 (10-26-2020),  loxias (08-28-2020),  okarinaofsteiner (09-08-2020),  Pedro Ruben (08-28-2020),  pgbk87 (11-21-2020),  RCO (08-28-2020),  ThaYamamoto (08-28-2020)

  3. #2
    Registered Users
    Posts
    499
    Sex
    Omitted

    Thoughts please?

  4. #3
    Registered Users
    Posts
    19
    Sex
    Omitted
    Ethnicity
    Somali/Afro-N. American

    Somaliland Adal Sultanate
    I would like to say something meaningful to properly convey how impressed I am that you've compiled such a group, but I fear my knowledge of these tools is woefully inadequate.
    But from what I can see, well done ! I don't think I've ever come across pre-colonial NA samples before, and you have a string of them with your own summaries. As someone with very minor ancestry from Northern Amerindians, I eagerly await your next post on these and hope for the eastern coast in particular. Concerning your Bolivian samples from Pando, I'm uncertain that the 0.8% African would be from their 11% Iberian heritage, because that might mean (ignoring random recombination) that the "100%" Iberian sample would be ~7% African. Do Iberians really have that much African heritage on average?

  5. The Following User Says Thank You to Atlas For This Useful Post:

     Tsakhur (08-28-2020)

  6. #4
    Registered Users
    Posts
    260
    Sex
    Nationality
    Brazilian
    Y-DNA (P)
    R1b
    mtDNA (M)
    H1

    Brazil Azores Italy Ladinia
    I'm interested to see how Amerindians from Brazilian Coast like Tupis and Tamoios would score, I wonder if there are surprises on our way. I'm seeing many Brazilians from São Paulo, Minas Gerais, Rio de Janeiro and Bahia scoring very minor Southeast Asian (~1%) in multiple calculators and I wonder if it's some kind of admixture present in the Native Americans from this region, some type of Asian admixture Portuguese colonists who populated these regions picked in Asia, influence from Southeast African slaves (who might have had Asian admixture, Brazil received many slaves from East Africa) or just noise.

    Regarding modern Native Americans, I think it's very hard to find any tribes without any European and/or African admixture around the New World. Probably only Amazonians and some Andeans maintain a more ''pure'' Native American profile. Natives from USA are mainly mixed and some individuals in significant amounts, I even heard of mostly European individuals with 1/8, 1/16 and even 1/32 or 1/64 Amerindian ancestry identifying as Native Americans in USA.

  7. The Following User Says Thank You to Caius Agrippa For This Useful Post:

     Tsakhur (08-30-2020)

  8. #5
    Gold Class Member
    Posts
    1,039
    Sex
    Omitted
    Ethnicity
    Somali
    Nationality
    Canadian
    Y-DNA (P)
    E-BY75676
    mtDNA (M)
    L0a1d
    Y-DNA (M)
    T-FGC92488

    Somaliland Ethiopia Adal Sultanate Yemen Canada
    Why aren't there any New World colonial samples on G25? I always wanted to run them on G25 and see the genetic makeup of latino groups especially the countries that have a significant presence of people of West/Central African descent like the DR,Puerto Rico,Colombia and Brazil.
    Drobbah_scaled
    Target: Drobbah_scaled
    Distance: 4.2508% / 0.04250752
    52.2 Sudanese
    19.6 Proto-Natufian_(simulated)
    13.6 MAR_Taforalt
    11.0 Yemenite_Al_Bayda
    3.6 ETH_4500BP

    Distance: 1.2698% / 0.01269848 | ADC: 0.25x
    31.0 KEN_Pastoral_N
    26.4 KEN_Pastoral_N_Elmenteitan
    18.4 TZA_PN
    12.0 KEN_HyraxHill_2300BP
    10.6 KEN_Pastoral_IA

  9. The Following 3 Users Say Thank You to drobbah For This Useful Post:

     Riverman (08-31-2020),  ThaYamamoto (08-31-2020),  Tsakhur (08-30-2020)

  10. #6
    Registered Users
    Posts
    499
    Sex
    Omitted

    Quote Originally Posted by drobbah View Post
    Why aren't there any New World colonial samples on G25? I always wanted to run them on G25 and see the genetic makeup of latino groups especially the countries that have a significant presence of people of West/Central African descent like the DR,Puerto Rico,Colombia and Brazil.
    Ya, I don't know why David didn't include them in his spreadsheet either.

    Vadim (who created MDLP) and Dienekes (who created Dodecad) have some New World populations in their gedmatch calculators, I guess some user here will have to request David to upload those Latin American or Caribbean groups from Vadim and Dienekes into G25.

    Or maybe we will have to ask some Latino or New World mixed race users here on Anthrogenica to do G25 tests and then request for David to include them into his spreadsheet.

  11. The Following 2 Users Say Thank You to Tsakhur For This Useful Post:

     drobbah (08-30-2020),  ThaYamamoto (08-31-2020)

  12. #7
    Registered Users
    Posts
    260
    Sex
    Nationality
    Brazilian
    Y-DNA (P)
    R1b
    mtDNA (M)
    H1

    Brazil Azores Italy Ladinia
    Quote Originally Posted by drobbah View Post
    Why aren't there any New World colonial samples on G25? I always wanted to run them on G25 and see the genetic makeup of latino groups especially the countries that have a significant presence of people of West/Central African descent like the DR,Puerto Rico,Colombia and Brazil.
    In my opinion including such groups isn't really very informative for G25 purposes and I don't know if a tool developed to measure ancient ancestry in Old World populations is the best tool to capture more recent geneflow in admixed New World populations. Moreover, the average ancestries in Latin America don't mean most people in a given country will score like the average, apart from more homogeneous countries like Mexico and Bolivia. Mexican average is like 45% European, 50% Amerindian and 5% African and most Mexicans indeed score like that. Cuban average is like 70% European, 25% African, 5% Amerindian, but most Cubans don't score like that, most are either heavily European or heavily African, the average means nothing here.

    If you look at Brazilian samples from GEDmatch calculators you will see that they are heavily skewed towards Europe, Brazilian sample in MDLP and puntDNAL is basically a Portuguese with 6% more West African and 5-7% Amerindian. But it doesn't mean most Brazilians are over 80% European, a significant portion is, but there are many more Brazilians with very high African and Amerindian components, I've seen many Brazilians scoring around 30% Amerindian, 70% SSA and even ''perfect'' triracials with equal proportions of the three. One must be very careful while selecting samples in extremely heterogeneous countries like Brazil.
    Last edited by Caius Agrippa; 08-30-2020 at 09:16 PM.

  13. The Following 3 Users Say Thank You to Caius Agrippa For This Useful Post:

     Atlas (08-31-2020),  drobbah (08-30-2020),  ThaYamamoto (08-31-2020)

  14. #8
    Registered Users
    Posts
    2,404
    Sex
    Location
    America
    Ethnicity
    North & Ionian Seas
    Nationality
    American

    England Italy Germany Scotland
    Quote Originally Posted by Tsakhur View Post
    Ya, I don't know why David didn't include them in his spreadsheet either.

    Vadim (who created MDLP) and Dienekes (who created Dodecad) have some New World populations in their gedmatch calculators, I guess some user here will have to request David to upload those Latin American or Caribbean groups from Vadim and Dienekes into G25.

    Or maybe we will have to ask some Latino or New World mixed race users here on Anthrogenica to do G25 tests and then request for David to include them into his spreadsheet.
    I saw this and had to chuckle as I have read that there is some friction between those mentioned based on how they come up with population sample groups. In other words, I don't think that's going to happen.

  15. The Following User Says Thank You to JerryS. For This Useful Post:

     ThaYamamoto (08-31-2020)

  16. #9
    Registered Users
    Posts
    499
    Sex
    Omitted

    Quote Originally Posted by Caius Agrippa View Post
    In my opinion including such groups isn't really very informative for G25 purposes and I don't know if a tool developed to measure ancient ancestry in Old World populations is the best tool to capture more recent geneflow in admixed New World populations. Moreover, the average ancestries in Latin America don't mean most people in a given country will score like the average, apart from more homogeneous countries like Mexico and Bolivia. Mexican average is like 45% European, 50% Amerindian and 5% African and most Mexicans indeed score like that. Cuban average is like 70% European, 25% African, 5% Amerindian, but most Cubans don't score like that, most are either heavily European or heavily African, the average means nothing here.

    If you look at Brazilian samples from GEDmatch calculators you will see that they are heavily skewed towards Europe, Brazilian sample in MDLP and puntDNAL is basically a Portuguese with 6% more West African and 5-7% Amerindian. But it doesn't mean most Brazilians are over 80% European, a significant portion is, but there are many more Brazilians with very high African and Amerindian components, I've seen many Brazilians scoring around 30% Amerindian, 70% SSA and even ''perfect'' triracials with equal proportions of the three. One must be very careful while selecting samples in extremely heterogeneous countries like Brazil.
    Agreed. Maybe if it is New World groups who are genetically more stabilized and homogeneous in terms of their recent ancestries like Mexicans, Peruvians/Bolivians, etc, it might make more sense to include them than others who are very heterogeneous and varied such as Brazilians as you have noted.

    Wait by 30% Amerindian 70% SSA, do you mean that the individual is around 70% SSA and the rest of the autosomal DNA are varying amounts of European or Amerindian, or do you mean that the sample is literally 70% African and 30% Native American without zero European? There are some Brazilians who don't have any European ancestry besides Amazonian tribes?

  17. The Following User Says Thank You to Tsakhur For This Useful Post:

     Caius Agrippa (08-31-2020)

  18. #10
    Registered Users
    Posts
    499
    Sex
    Omitted

    Quote Originally Posted by drobbah View Post
    Why aren't there any New World colonial samples on G25? I always wanted to run them on G25 and see the genetic makeup of latino groups especially the countries that have a significant presence of people of West/Central African descent like the DR,Puerto Rico,Colombia and Brazil.
    Actually I think some New World ethnic groups who are more "stabilized" genetically in terms of ancestries can be included in G25 such as the Garifuna from Central America who are predominantly West-Central African with significant Native American ancestry from around 15-25% (the highest SSA I have seen for a Garifuna is an individual who is 90% SSA and 10% Amerindian but I am not sure if he is recently mixed with other New World Afro-diaspora group or not).

    Also Miskito Amerindians from Nicaragua, Honduras who are actually almost a stabilized mix between Africans and Natives might be able to be added into G25 as well.

    Or maybe groups like Jamaicans, Haitians who are predominantly African genetically can be added as well or even the Surinamese/Guianan Maroons who are literally runaway African slaves who are "almost pristine" to 100% SSA genetically.
    Last edited by Tsakhur; 08-31-2020 at 06:51 AM.

Page 1 of 3 123 LastLast

Similar Threads

  1. Replies: 5
    Last Post: 12-11-2019, 09:43 AM
  2. Towards a better modelling of NorthWest Europeans in Global 25
    By Huijbregts in forum Autosomal (auDNA)
    Replies: 98
    Last Post: 05-17-2019, 06:12 PM
  3. South American Native American DNA article
    By Grossvater in forum General
    Replies: 3
    Last Post: 11-09-2018, 09:19 PM
  4. Latin American recent biorxiv article
    By RCO in forum General
    Replies: 5
    Last Post: 05-05-2018, 07:25 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •