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Tomenable
04-04-2021, 01:51 AM
Here is population average of several Guamanians in HarappaWorld (let me know what other calculators do you want me to post):

Population Guamanian(average)
S-Indian 2.12
Baloch 1.74
Caucasian 3.28
NE-Euro 6.06
SE-Asian 45.03
Siberian 1.15
NE-Asian 19.71
Papuan 5.42
American 4.65
Beringian 0.20
Mediterranean 7.88
SW-Asian 1.82
San 0.00
E-African 0.32
Pygmy 0.15
W-African 0.47

Tsakhur
07-26-2021, 08:37 AM
Here is population average of several Guamanians in HarappaWorld (let me know what other calculators do you want me to post):

Population Guamanian(average)
S-Indian 2.12
Baloch 1.74
Caucasian 3.28
NE-Euro 6.06
SE-Asian 45.03
Siberian 1.15
NE-Asian 19.71
Papuan 5.42
American 4.65
Beringian 0.20
Mediterranean 7.88
SW-Asian 1.82
San 0.00
E-African 0.32
Pygmy 0.15
W-African 0.47

Much higher West Eurasian admixture than Pinos.

Tomenable
09-07-2021, 09:20 PM
Interestingly, it seems that Guam has no Papuan-like admixture, while academic Micronesian samples have it. Maybe southern and south-eastern parts of Micronesia have Papuan-like admixture, while northern and north-western parts do not?

ATjunior1
09-07-2021, 10:05 PM
https://www.pnas.org/content/118/1/e2022112118
The Indigenous Chamorros are Austronesians with their closest genetic relatives being Indigenous Filipinos. Modern Guamanians are admixed mostly with Filipinos, Spanish or other Euros, Chinese and some Japanese aside from other Polynesians, Micronesians.

Tomenable
09-07-2021, 10:21 PM
https://www.pnas.org/content/118/1/e2022112118
The Indigenous Chamorros are Austronesians with their closest genetic relatives being Indigenous Filipinos. Modern Guamanians are admixed mostly with Filipinos, Spanish or other Euros, Chinese and some Japanese aside from other Polynesians, Micronesians.

Yes, it makes sense. The Chamorros from Guam (and Northern Mariana Islands) have no Papuan-like admix.

On the other hand, indigenous samples from the Federated States of Micronesia are ca. 26-29% Papuan-like.

Map showing the history of migrations:

https://upload.wikimedia.org/wikipedia/commons/e/e4/Chronological_dispersal_of_Austronesian_people_acr oss_the_Pacific_%28per_Benton_et_al%2C_2012%2C_ada pted_from_Bellwood%2C_2011%29.png

https://upload.wikimedia.org/wikipedia/commons/e/e4/Chronological_dispersal_of_Austronesian_people_acr oss_the_Pacific_%28per_Benton_et_al%2C_2012%2C_ada pted_from_Bellwood%2C_2011%29.png

passenger
09-07-2021, 10:34 PM
Anecdotally, just within the past few weeks I've seen my first two examples of Guamanian autosomal results - one from a new forum member (https://anthrogenica.com/showthread.php?22695-Single-thread-for-G25-modelling-requests&p=797326#post797326) and another on Youtube:


https://www.youtube.com/watch?v=MiKTuSlYfsE

I was surprised to see that the Iberian percentage was so much higher for them than for the average Filipino, but I guess it makes sense given Guam's small size and the demographic realities that probably came along with that. I wonder if that's true of the Guamanian population as a whole, though, or if that Iberian ancestry is unevenly distributed.

Tomenable
09-07-2021, 10:53 PM
Anecdotally, just within the past few weeks I've seen my first two examples of Guamanian autosomal results - one from a new forum member (https://anthrogenica.com/showthread.php?22695-Single-thread-for-G25-modelling-requests&p=797326#post797326) and another on Youtube:

https://www.youtube.com/watch?v=MiKTuSlYfsE

I was surprised to see that the Iberian percentage was so much higher for them than for the average Filipino, but I guess it makes sense given Guam's small size and the demographic realities that probably came along with that. I wonder if that's true of the Guamanian population as a whole, though, or if that Iberian ancestry is unevenly distributed.

Yes many are admixed, but European admixture is unevenly distributed. The ones that I've found and included in my average (see the 1st post of this thread) are relatively unmixed. My Guam average is ca. 8% European (mostly Iberian) in K36 calculator.

BTW, they mixed also with Mestizos who came from Spanish colonies in America.

ATjunior1
09-07-2021, 11:11 PM
Admix Results (sorted): 23andme



#
Population
Percent


1
SE-Asian
52.05


2
NE-Asian
31.34


3
Papuan
2.98


4
NE-Euro
2.88


5
Siberian
2.38


6
SW-Asian
2.12


7
S-Indian
2.1


8
Caucasian
1.84


9
E-African
0.85


10
San
0.7


11
Baloch
0.56


12
Beringian
0.18


13
Pygmy
0.0



Admix Results (sorted): FTDNA



#
Population
Percent


1
SE-Asian
52.36


2
NE-Asian
32.26


3
Papuan
3.32


4
S-Indian
2.9


5
NE-Euro
1.63


6
Caucasian
1.41


7
Beringian
1.37


8
Mediterranean
1.31


9
E-African
1.24


10
SW-Asian
0.85


11
Siberian
0.83


12
Baloch
0.32


13
San
0.18





My HarrapaWorld for comparison

Tsakhur
09-08-2021, 11:52 AM
Interestingly, it seems that Guam has no Papuan-like admixture, while academic Micronesian samples have it. Maybe southern and south-eastern parts of Micronesia have Papuan-like admixture, while northern and north-western parts do not?

There are academic Micronesian samples? Are they in gedmatch or G25? Can you share some of them please?

cmp
09-08-2021, 03:53 PM
Anecdotally, just within the past few weeks I've seen my first two examples of Guamanian autosomal results - one from a new forum member (https://anthrogenica.com/showthread.php?22695-Single-thread-for-G25-modelling-requests&p=797326#post797326) and another on Youtube:


https://www.youtube.com/watch?v=MiKTuSlYfsE

I was surprised to see that the Iberian percentage was so much higher for them than for the average Filipino, but I guess it makes sense given Guam's small size and the demographic realities that probably came along with that. I wonder if that's true of the Guamanian population as a whole, though, or if that Iberian ancestry is unevenly distributed.

Thanks for finding and sharing this video. Turns out this guy shows up as a match on Ancestry with my dad, projected 3rd-4th cousin.

passenger
09-08-2021, 04:51 PM
Thanks for finding and sharing this video. Turns out this guy shows up as a match on Ancestry with my dad, projected 3rd-4th cousin.

Wow! Pretty cool.

cmp
09-21-2021, 04:40 PM
Yes, it makes sense. The Chamorros from Guam (and Northern Mariana Islands) have no Papuan-like admix.

On the other hand, indigenous samples from the Federated States of Micronesia are ca. 26-29% Papuan-like.

Map showing the history of migrations:

https://upload.wikimedia.org/wikipedia/commons/e/e4/Chronological_dispersal_of_Austronesian_people_acr oss_the_Pacific_%28per_Benton_et_al%2C_2012%2C_ada pted_from_Bellwood%2C_2011%29.png

https://upload.wikimedia.org/wikipedia/commons/e/e4/Chronological_dispersal_of_Austronesian_people_acr oss_the_Pacific_%28per_Benton_et_al%2C_2012%2C_ada pted_from_Bellwood%2C_2011%29.png

Hopefully, an upcoming study to be released later this year sheds more light on the migrations throughout Micronesia. From the 9th International Symposium on Biomolecular Archaeology
June 1st – 4th 2021(Toulouse, FRANCE), here is the abstract of the study. https://imgur.com/a/8POVhEB

Do the Micronesian samples you have looked at have G25 coordinates?