Repost from the foruim version 1.0 plus additional data for FTDNA.
YFull data
I recently came across the sampling ratio for different countries based on YFull. It is noteworthy that the sampling in some countries is so high, that big surprises become less likely, while in other countries there are truly huge gaps. Here is the map:
phylogeographer.com/yfull-world-sampling-rate-map/?fbclid=IwAR19ab58aKPPbbnJUbCOZkaXgcNiX17aHgpn0fM58yUHv6q2WEIl8ldFDRs
For Europe and the Near East, some of the highest ratios are from the Southern Arab states, especially Saudi Arabia which tops nearly everybody else. In Europe the best sampling on YFull being achieved in Ireland, Albania, Montenegro, Armenia, Sweden and Finland. On the other end of the spectrum are Moldova, Romania and France primarily, but also Austria, Germany, Ukraine and Spain.
The ratios get even worse if considering that a large fraction of the testers from Romania, Moldova and Ukraine are Ashkenazi Jewish or other ethnic minorities, with the main ethnic group of these states being even more severely underrepresented. The higher testing frequency of Ashkenazi (which is per se a good thing!) is also an issue for Austria and Germany, because it further lowers the local ethnic ratios.
Especially if talking the results from YFull at face value, these ratios put things into perspective. The chances for big surprises in some areas (like Ireland and Finland) are way smaller than in other areas (like Romania and France).
FTDNA data (STR tested individuals - many, especially many Germans left out, because they have no country of origin in their profiles)
Some countries have significantly higher or lower ratios at FTDNA, but some basic gaps remain. Here are the numbers for tested individuals from those countries in which I have (usually distant) STR matches, sorted by most to least tested individuals:
1.
England
46896
2.
Ireland
32824
3.
United States
28827
4.
Germany
25345
5.
Scotland
22883
6.
United Kingdom
16263
7.
Saudi Arabia
11762
8.
Russian Federation
10817
9.
Sweden
10072
10.
Finland
9159
11.
Poland
8620
12.
France
8248
13.
Italy
6878
14.
Spain
6130
15.
Norway
4705
16.
Switzerland
4147
17.
Ukraine
4087
18.
Wales
3712
19.
Netherlands
3375
20.
Iraq
3242
21.
Northern Ireland
3068
22.
Hungary
2422
23.
Lithuania
2290
24.
Portugal
2220
25.
Mexico
1990
26.
Czech Republic
1954
27.
Turkey
1912
28.
Denmark
1860
29.
Belarus
1810
30.
United States (Native American)
1773
31.
Canada
1731
32.
Greece
1673
33.
Austria
1450
34.
Romania
1110
35.
Slovakia
1096
36.
Armenia
1068
37.
Belgium
1025
38.
Syrian Arab Republic
869
39.
Georgia
856
40.
Bulgaria
847
41.
Qatar
831
42.
Indonesia
707
43.
Libya
656
44.
Morocco
608
45.
Croatia
575
46.
Latvia
541
47.
Brazil
464
48.
Puerto Rico
460
49.
Albania
447
50.
Slovenia
406
51.
Serbia
402
52.
Azerbaijan
379
53.
Philippines
363
54.
Bosnia and Herzegovina
352
55.
Tunisia
322
56.
Moldova
203
57.
Macedonia
192
58.
Iceland
191
59.
Jamaica
188
60.
Montenegro
162
61.
England (Cornish)
144
62.
Luxembourg
141
63.
Dominican Republic
118
64.
Kosovo
107
65.
Russia (Republic of Adygea)
88
66.
Ethiopia
74
67.
Liechtenstein
14
68.
Italy (South Tyrol)
1
The biggest discrepancy is visible in the Balkans, with Albanians in particular being much worse tested on FTDNA than on YFull. Still if summing Albania and Kosovo up, the ratio per total population is not bad at all.
For countries like Ukraine, Romania, Poland, Austria, Germany etc. the very high proportion of Ashkenazi Jewish testers with origins in those countries remains a problem for properly assessing the regional ethnic testing frequency.
Ireland and Saudi Arabia are among the best tested countries worldwide, both on YFull and FTDNA.
YFull data
I recently came across the sampling ratio for different countries based on YFull. It is noteworthy that the sampling in some countries is so high, that big surprises become less likely, while in other countries there are truly huge gaps. Here is the map:
phylogeographer.com/yfull-world-sampling-rate-map/?fbclid=IwAR19ab58aKPPbbnJUbCOZkaXgcNiX17aHgpn0fM58yUHv6q2WEIl8ldFDRs
For Europe and the Near East, some of the highest ratios are from the Southern Arab states, especially Saudi Arabia which tops nearly everybody else. In Europe the best sampling on YFull being achieved in Ireland, Albania, Montenegro, Armenia, Sweden and Finland. On the other end of the spectrum are Moldova, Romania and France primarily, but also Austria, Germany, Ukraine and Spain.
The ratios get even worse if considering that a large fraction of the testers from Romania, Moldova and Ukraine are Ashkenazi Jewish or other ethnic minorities, with the main ethnic group of these states being even more severely underrepresented. The higher testing frequency of Ashkenazi (which is per se a good thing!) is also an issue for Austria and Germany, because it further lowers the local ethnic ratios.
Especially if talking the results from YFull at face value, these ratios put things into perspective. The chances for big surprises in some areas (like Ireland and Finland) are way smaller than in other areas (like Romania and France).
FTDNA data (STR tested individuals - many, especially many Germans left out, because they have no country of origin in their profiles)
Some countries have significantly higher or lower ratios at FTDNA, but some basic gaps remain. Here are the numbers for tested individuals from those countries in which I have (usually distant) STR matches, sorted by most to least tested individuals:
1.
England
46896
2.
Ireland
32824
3.
United States
28827
4.
Germany
25345
5.
Scotland
22883
6.
United Kingdom
16263
7.
Saudi Arabia
11762
8.
Russian Federation
10817
9.
Sweden
10072
10.
Finland
9159
11.
Poland
8620
12.
France
8248
13.
Italy
6878
14.
Spain
6130
15.
Norway
4705
16.
Switzerland
4147
17.
Ukraine
4087
18.
Wales
3712
19.
Netherlands
3375
20.
Iraq
3242
21.
Northern Ireland
3068
22.
Hungary
2422
23.
Lithuania
2290
24.
Portugal
2220
25.
Mexico
1990
26.
Czech Republic
1954
27.
Turkey
1912
28.
Denmark
1860
29.
Belarus
1810
30.
United States (Native American)
1773
31.
Canada
1731
32.
Greece
1673
33.
Austria
1450
34.
Romania
1110
35.
Slovakia
1096
36.
Armenia
1068
37.
Belgium
1025
38.
Syrian Arab Republic
869
39.
Georgia
856
40.
Bulgaria
847
41.
Qatar
831
42.
Indonesia
707
43.
Libya
656
44.
Morocco
608
45.
Croatia
575
46.
Latvia
541
47.
Brazil
464
48.
Puerto Rico
460
49.
Albania
447
50.
Slovenia
406
51.
Serbia
402
52.
Azerbaijan
379
53.
Philippines
363
54.
Bosnia and Herzegovina
352
55.
Tunisia
322
56.
Moldova
203
57.
Macedonia
192
58.
Iceland
191
59.
Jamaica
188
60.
Montenegro
162
61.
England (Cornish)
144
62.
Luxembourg
141
63.
Dominican Republic
118
64.
Kosovo
107
65.
Russia (Republic of Adygea)
88
66.
Ethiopia
74
67.
Liechtenstein
14
68.
Italy (South Tyrol)
1
The biggest discrepancy is visible in the Balkans, with Albanians in particular being much worse tested on FTDNA than on YFull. Still if summing Albania and Kosovo up, the ratio per total population is not bad at all.
For countries like Ukraine, Romania, Poland, Austria, Germany etc. the very high proportion of Ashkenazi Jewish testers with origins in those countries remains a problem for properly assessing the regional ethnic testing frequency.
Ireland and Saudi Arabia are among the best tested countries worldwide, both on YFull and FTDNA.