Roberta Estes and her readers at DNAeXplained are having wild fun comparing
their DNA to ancient DNA samples uploaded to
GEDmatch* by
Felix Chandrakamur. I couldn't resist joining in the fun.
Following her example, I tweaked the Minimum Threshold and the Minimum segment cM sizes (down to 1cM unless otherwise stated) to see if I matched any of the samples. Those numbers are tweaked to see if there are any DNA matches. I don't usually mess with GEDmatch's default 700 SNP/7cM, but this DNA is so old there would be no other way to compare.
No one knows yet if these results are meaningful or not, but if people who write about this stuff during the day and lay awake at night obsessing about it are going to compare their DNA to ancient remains, so shall I.
I will compare each ancient DNA sample with me and my parents only at the highest values found (we share much more on each ancient DNA sample at values below). I just did autosomal comparisons, not X-chromosome.
Clovis Anzick-1 refers to the remains of a toddler who died and was buried in Wilsall, Park, Montana about 12,600 years ago. This child was a member of the population from which all modern Native Americans descend, particularly those from Mexico and south of Mexico. NOTE: Since first posting this, the kit number changed to F999919.
Comparing (Christine) and F999913 (Clovis Anzick-1)
Minimum threshold size to be included in total = 400 SNPs
Mismatch-bunching Limit = 200 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM) SNPs
1
159281892
161769805
4.1
406
10
103388824
106662110
1.6
419
Largest segment = 4.1 cM
Total of segments > 1 cM = 5.7 cM
Comparing (Dad) and F999913 (Clovis Anzick-1)
Minimum threshold size to be included in total = 350 SNPs
Mismatch-bunching Limit = 175 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
6
104470668
107607740
4.7
354
10
111327250
114051969
2.6
362
Largest segment = 4.7 cM
Total of segments > 1 cM = 7.3 cM
Comparing (Mom) and F999913 (Clovis Anzick-1)
Minimum threshold size to be included in total = 350 SNPs
Mismatch-bunching Limit = 175 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
1
153063519
155385045
2.3
384
2
88322784
99543207
1.6
374
Largest segment = 2.3 cM
Total of segments > 1 cM = 3.9 cM
My Chromosome 1 match is similar to my mom, and my Chromosome 10 match is similar to my dad. Does this point to us being part Native American? Who knows.
Palaeo-Eskimo 2000 BC is the DNA from a man (now dubbed "Inuk") who died about 4,000 years ago along the shore of Disco Bay in Greenland.
Comparing (Christine) and F999906 (Palaeo-Eskimo 2000 BC)
Minimum threshold size to be included in total = 200 SNPs
Mismatch-bunching Limit = 100 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
2
218789542
219868474
1.8
239
Largest segment = 1.8 cM
Total of segments > 1 cM = 1.8 cM
Comparing (Dad) and F999906 (Palaeo-Eskimo 2000 BC)
Minimum threshold size to be included in total = 200 SNPs
Mismatch-bunching Limit = 100 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
6
42773468
43799851
2.5
229
12
112727416
113301703
1.1
208
19
15027162
15712229
1.1
265
22
20458678
21923051
3.9
215
Largest segment = 3.9 cM
Total of segments > 1 cM = 8.5 cM
Comparing (Mom) and F999906 (Palaeo-Eskimo 2000 BC)
Minimum threshold size to be included in total = 200 SNPs
Mismatch-bunching Limit = 100 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
1
53539560
54409565
1.5
233
6
42721822
43792975
2.5
234
16
1791149
2728282
1.7
206
Largest segment = 2.5 cM
Total of segments > 1 cM = 5.7 cM
I don't appear to match either of my parents' DNA at the highest matching values, although they appear to match each other on their Chromosome 6.
Altai Neanderthal is the DNA that was extracted from a Neanderthal woman's toe bone. She died in the Altai Mountains in Siberia at least 50,000 years ago.
Comparing (Christine) and F999902 (Altai Neanderthal)
Minimum threshold size to be included in total = 200 SNPs
Mismatch-bunching Limit = 100 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
8
20182757
20819443
1.1
236
Largest segment = 1.1 cM
Total of segments > 1 cM = 1.1 cM
Comparing (Dad) and F999902 (Altai Neanderthal)
Minimum threshold size to be included in total = 100 SNPs
Mismatch-bunching Limit = 50 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
2
47888491
48685435
1.3
133
2
125902914
126798780
1.0
140
3
20411153
20945046
1.1
139
11
32474646
33371727
1.1
138
21
35719891
36198939
1.1
100
Largest segment = 1.3 cM
Total of segments > 1 cM = 5.6 cM
Comparing (Mom) and F999902 (Altai Neanderthal)
Minimum threshold size to be included in total = 200 SNPs
Mismatch-bunching Limit = 100 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
6
31529276
32743927
1.1
222
11
32249953
33344121
1.1
210
Largest segment = 1.1 cM
Total of segments > 1 cM = 2.2 cM
Like Palaeo-Eskimo above, I don't match my parents at the highest values, but they match each other on Chromosome 11.
Denosova is the DNA extracted from a little girl who died at least 30,000 years ago and died and/or was buried in the Denosova Cave in the Altai Mountains in Siberia.
Comparing (Christine) and F999903 (Denisova)
Minimum threshold size to be included in total = 100 SNPs
Mismatch-bunching Limit = 50 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
2
155356065
156155492
1.1
109
7
68512715
69604128
1.3
112
8
20182757
20815206
1.0
233
Largest segment = 1.3 cM
Total of segments > 1 cM = 3.4 cM
Comparing (Dad) and F999903 (Denisova)
Minimum threshold size to be included in total = 100 SNPs
Mismatch-bunching Limit = 50 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
11
32474646
33347123
1.0
131
Largest segment = 1.0 cM
Total of segments > 1 cM = 1.0 cM
Comparing (Mom) and F999903 (Denisova)
Minimum threshold size to be included in total = 200 SNPs
Mismatch-bunching Limit = 100 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
6
31569945
32702306
1.0
213
Largest segment = 1.0 cM
Total of segments > 1 cM = 1.0 cM
None of us seemed to match each other on our highest values.
Linearbandkeramik (LBK) is a sample taken from the remains of a farmer (presumably a man, I can't get more detail) who died in the Stuttgart region about 7,500 years ago. The German name refers to the Linear Band pottery culture.
Comparing (Christine) and F999916 (Linearbandkeramik)
Minimum threshold size to be included in total = 500 SNPs
Mismatch-bunching Limit = 250 SNPs
Minimum segment cM to be included in total = 3.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
1
20882387
22912496
3.2
519
1
30050780
31476920
3.3
523
2
217867317
219949518
4.0
519
21
37042588
39041800
3.4
547
Largest segment = 4.0 cM
Total of segments > 3 cM = 13.8 cM
Comparing (Dad) and F999916 (Linearbandkeramik)
Minimum threshold size to be included in total = 500 SNPs
Mismatch-bunching Limit = 250 SNPs
Minimum segment cM to be included in total = 3.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
2
217643676
219934637
4.5
555
Largest segment = 4.5 cM
Total of segments > 3 cM = 4.5 cM
Comparing (Mom) and F999916 (Linearbandkeramik)
Minimum threshold size to be included in total = 700 SNPs
Mismatch-bunching Limit = 350 SNPs
Minimum segment cM to be included in total = 3.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
13
79743931
85588528
3.5
1197
Largest segment = 3.5 cM
Total of segments > 3 cM = 3.5 cM
Since we're predominantly descended from people in Western Europe, it was no surprise that my parents and I are much closer to this ancient person. I share some this match with my dad on our Chromosome 2.
La Brana-Arintero aka La Brana-1 is from a man who died or was buried about 7,000 years ago in Valdelugueros, León, Spain. Unlike LBK, La Brana-1 was pre-agricultural, even though he was slightly later.
Comparing (Christine) and F999915 (La Brana-Arintero)
Minimum threshold size to be included in total = 200 SNPs
Mismatch-bunching Limit = 100 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
1
63279983
64482048
1.8
205
2
52083107
53498109
1.2
231
2
190278589
192072958
1.9
214
4
89384761
92048466
3.4
276
8
50215053
52688107
1.5
213
9
9347877
10743557
2.5
291
10
109396783
110766205
1.0
205
10
112855667
114042907
1.1
218
12
20867979
21552775
1.2
250
Largest segment = 3.4 cM
Total of segments > 1 cM = 15.6 cM
Comparing (Dad) and F999915 (La Brana-Arintero)
Minimum threshold size to be included in total = 250 SNPs
Mismatch-bunching Limit = 125 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
10
22557524
24487606
1.8
256
10
73379996
76482747
1.4
280
12
109031545
111722776
1.3
273
19
43427453
44691915
1.4
257
Largest segment = 1.8 cM
Total of segments > 1 cM = 6.0 cM
Comparing (Mom) and F999915 (La Brana-Arintero)
Minimum threshold size to be included in total = 250 SNPs
Mismatch-bunching Limit = 125 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
10
112836288
114332785
1.7
273
12
20766653
21754801
1.6
284
16
1461746
2820106
2.8
265
19
43449630
44951182
1.9
291
Largest segment = 2.8 cM
Total of segments > 1 cM = 8.1 cM
Again, since we are all of Western European ancestry, I expected to have a closer match like this than the first few ancient DNA samples. My mom had the highest match. Her ethnicity tests have always revealed a higher than expected amount of Iberian DNA, even though she has no recent Spanish ancestor (I suspect her French Huguenots from the 1600's). I match her on Chromosome 10. My dad has Chromosome 10 as well, but on a slightly different span. Mom and I also share on Chromosome 12.
Mal'ta MA-1 is taken from the arm bone of a 4-year-old boy who died and was buried about 24,000 years ago near the village of Mal'ta, Siberia (near Lake Baikal). It is considered a link between Europeans and Native Americans.
Comparing (Christine) and F999914 (Malta MA-1)
Minimum threshold size to be included in total = 350 SNPs
Mismatch-bunching Limit = 175 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
10
95396719
97209165
1.4
386
Largest segment = 1.4 cM
Total of segments > 1 cM = 1.4 cM
Comparing (Dad) and F999914 (Malta MA-1)
Minimum threshold size to be included in total = 250 SNPs
Mismatch-bunching Limit = 125 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
12
20776581
21463245
1.2
289
Largest segment = 1.2 cM
Total of segments > 1 cM = 1.2 cM
Comparing (Mom) and F999914 (Malta MA-1)
Minimum threshold size to be included in total = 300 SNPs
Mismatch-bunching Limit = 150 SNPs
Minimum segment cM to be included in total = 1.0 cM
Chr
Start Location
End Location
Centimorgans (cM)
SNPs
2
81275213
84230757
1.3
303
10
95493749
97209165
1.3
367
12
21064601
21931308
1.3
318
Largest segment = 1.3 cM
Total of segments > 1 cM = 3.9 cM
I share Mal'ta on Chromosome 10 with my mother. My parents share Chromosome 12, which I don't have at my highest level.
*
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