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Tomenable
10-26-2019, 07:46 AM
I uploaded to GEDmatch some samples from "Patterns of genetic structure... in the Lithuanian population" (Urnikyte 2019):

Ca. 39 Southern Lithuania samples in this study have Slavic admixture (another 28 samples from this region appear Balts).

I uploaded only the samples with clear Slavic influences:

Kit number --- sample

JK6955726 --- LTG125
HX2459622 --- LTG1352
ZH9904087 --- LTG1374
XP9888088 --- LTG1375
KK5560960 --- LTG1378
LB5015953 --- LTG1408
WF4261598 --- LTG1409
MW4980740 --- LTG1411
EG1106901 --- LTG1412
DZ8732901 --- LTG1414
NN2806762 --- LTG1415
UB5946103 --- LTG1421
SZ6478040 --- LTG1436
PL3162085 --- LTG1439
EB2863958 --- LTG1440
NV9872178 --- LTG1448
MQ7477090 --- LTG167
UW7999068 --- LTG173
WZ8797131 --- LTG181
ET7174964 --- LTG395
RX1894353 --- LTG601
HZ3307903 --- LTG778
XP4757172 --- LTG782
SU9121750 --- LTG788
GB1647017 --- LTG796
YA4202218 --- LTG797
RY3865139 --- LTG800
EN2001593 --- LTG801
WU8448499 --- LTG804
XG3359321 --- LTG805
AL7580160 --- LTG807
CP6221777 --- LTG808
HP8465670 --- LTG810
AR5736561 --- LTG811
AJ9582849 --- LTG816
UP7677276 --- LTG817
XL4168069 --- LTG828
EH4176992 --- LTG829
YX4347568 --- LTG824

^^^
They are from the region labelled as Pietu Aukštaitija (South Aukštaitija) much of which was part of Poland before WW2:

https://i.imgur.com/wqWRsuG.png

Tomenable
10-26-2019, 07:47 AM
Some of them score "Estonian Polish" as their closest population in Eurogenes K13/K15 in Single Distances.

=====

Interestingly according to this study from 2004, South Aukštaitija has over 60% of Y-DNA haplogroup R1a:

"Y chromosome and mitochondrial DNA variation in Lithuanians", Kasperavičiūtė 2004:

https://pdfs.semanticscholar.org/6556/5477a499dddc3728cfc34172d434d4dfe8fa.pdf

https://www.semanticscholar.org/paper/Chromosome-and-Mitochondrial-DNA-Variation-in-Kasperavi%C4%8Di%C5%ABt%C4%97-Ku%C4%8Dinskas/65565477a499dddc3728cfc34172d434d4dfe8fa

https://onlinelibrary.wiley.com/doi/abs/10.1046/j.1529-8817.2003.00119.x

=====

Edit:

There are some Slavic-admixed samples also in Rytų Aukštaitija (East Aukštaitija), likely from southern parts of this region:

Kit number --- sample

SW3724449 --- LTG134
UK1317165 --- LTG248
XK5510303 --- LTG104
WR4322340 --- LTG135
RE4826929 --- LTG197
YS7125471 --- LTG342

=====

Eurogenes EUtest V2 K15 Oracle results:

Kit SW3724449

Admix Results (sorted):

# Population Percent
1 Baltic 29.2
2 North_Sea 22.45
3 Eastern_Euro 21.16
4 Atlantic 19.41
5 West_Med 2.92
6 South_Asian 2.76
7 Northeast_African 1.09
8 West_Asian 0.87
9 Amerindian 0.09
10 Oceanian 0.04
11 East_Med 0.01

Single Population Sharing:

# Population (source) Distance
1 Polish 4.38
2 Belorussian 5.09
3 Estonian_Polish 5.26
4 Estonian 5.61
5 Russian_Smolensk 5.89
6 Southwest_Russian 6.89
7 South_Polish 7.01
8 Lithuanian 7.69
9 Ukrainian_Belgorod 7.9
10 Ukrainian 8.01

Eurogenes EUtest V2 K15 Oracle results:

Kit UK1317165

Admix Results (sorted):

# Population Percent
1 Baltic 32.45
2 Eastern_Euro 22.57
3 North_Sea 22.3
4 Atlantic 17.13
5 West_Med 2.12
6 South_Asian 1.78
7 West_Asian 1.3
8 Red_Sea 0.36

Single Population Sharing:

# Population (source) Distance
1 Belorussian 3.79
2 Estonian_Polish 4.44
3 Lithuanian 4.45
4 Estonian 5.25
5 Southwest_Russian 6.07
6 Polish 6.09
7 Russian_Smolensk 6.14
8 Ukrainian_Belgorod 7.12
9 South_Polish 8.44
10 Ukrainian 8.75

Tomenable
10-26-2019, 10:14 AM
Slavic-admixed samples from Kaunas region / Lauda region (West Aukštaitija and WA / SZ borderland):

Kit number --- sample

MR6470190 --- LTG301
FQ9044985 --- LTG362
LX9634983 --- LTG451
AY8683414 --- LTG454
UZ3939692 --- LTG465
EX8431380 --- LTG604
JU5422669 --- LTG613
JB2005225 --- LTG626
YG6963436 --- LTG760
EQ1906587 --- LTG1261
KS9841297 --- LTG1220
PP6393204 --- LTG1158

^^^
Some of them are probably Lithuanized descendants of Lauda region Poles (Kaunas Uyezd), see here:

https://translate.google.com/translate?sl=pl&tl=en&u=https%3A%2F%2Fpl.wikipedia.org%2Fwiki%2FLauda_%2 8region%29

https://en.wikipedia.org/wiki/Kovensky_Uyezd

Quote from Wikipedia: "At the time of the Census of 1897, Kovensky Uyezd had a population of 227431. Of these, 41.4% spoke Lithuanian, 23.2% Polish, 19.8% Yiddish, 11.6% Russian, 2.3% German, 0.5% Tatar, 0.4% Belarusian (...) as their native language.[1]"