www.colinLmiller.com

DNA TESTING

Y-DNA STR TEST RESULTS

FamilyTreeDNA.com 67-Marker & ANCESTRY.COM 46-Marker Tests

The Y chromosome has areas that don't code for any genes (and so no health or disease information can be revealed by testing there). Some locations in the non-code areas have fast enough mutation rates to be useful in genealogy. The fast-mutating locations are repeated short sequences of DNA nucleotides. Some spots, called markers, have, for example, 23 repeats. This type of marker is called a Short Tandem Repeat or STR. Fast-mutating STR markers are useful in sorting out those males who tested with similar repeat counts for their markers and determining the probability of how close the common ancestor was.

The markers are usually inherited from father to son(s) unchanged, but a marker can still mutate to a shorter or longer repeat sequence. Every male with the same lineage will likely have a similar or same set of repeat counts, but the common ancestor may be a few or several to many generations back. The more STR markers tested, the better. If two males match on 25 markers, they could be off by several markers if they do a deeper 37-marker test. That means a difference of several repeat counts in a 37-marker test means the common ancestor was further back in time than might be suggested with the 25-marker match.

This table lists 76 named STR markers with Slow, Medium, and Fast mutation (S,M,F) indicators, the most useful are highlighted in red. Two testing companies were used, providing a combined total of 76 markers. Each testing company has its own database of test results. There are also free, public databases, such as ysearch.org and ybase.org, to find matches and compare results.

So far, no close matches have been found. The best matches have a genetic distance of 1 at 25 markers, and 7 at 67 markers. So, we are related through a common ancestor 24 or more generations back (about 600 years at 25 years per generation). However, as the databases grow, the potential for finding better matches increases. The Genetic Distance count is where an STR marker repeat count is down by one or more, or up by one or more. A NULL repeat count means there was an anomaly that prevented an accurate count so further specialized testing is required.

Y-DNA STR TEST RESULTS AND COMPARISON TABLE
Genetic Distance
-3 -2 -1
+1 +2 +3
FTDNA PANEL 1 [1-12] FTDNA PANEL 2 [13-25] FTDNA PANEL 3 [26-37] FTDNA PANEL 4 [38-67] Other Markers
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76
Rate [SMF]: S M M M M M S S M M S M F M M S S M S M F F F F F M M M M F M F F F F M S S S S S S S S S M M S M M M S S S F M M F M M S S S M S S S . . . . . . . . .
NAMEGD D
Y
S
3
9
3		 D
Y
S
3
9
0		 D
Y
S
1
9
/
3
9
4		 D
Y
S
3
9
1		 D
Y
S
3
8
5
a		 D
Y
S
3
8
5
b		 D
Y
S
4
2
6		 D
Y
S
3
8
8		 D
Y
S
4
3
9		 D
Y
S
3
8
9
-1		 D
Y
S
3
9
2		 D
Y
S
3
8
9
-2		 D
Y
S
4
5
8		 D
Y
S
4
5
9
a		 D
Y
S
4
5
9
b		 D
Y
S
4
5
5		 D
Y
S
4
5
4		 D
Y
S
4
4
7		 D
Y
S
4
3
7		 D
Y
S
4
4
8		 D
Y
S
4
4
9		 D
Y
S
4
6
4
a		 D
Y
S
4
6
4
b		 D
Y
S
4
6
4
c		 D
Y
S
4
6
4
d		 D
Y
S
4
6
0		 G
A
T
A
H4		 Y
C
A
I
I
a		 Y
C
A
I
I
b		 D
Y
S
4
5
6		 D
Y
S
6
0
7		 D
Y
S
5
7
6		 D
Y
S
5
7
0		 C
D
Y
a		 C
D
Y
b		 D
Y
S
4
4
2		 D
Y
S
4
3
8		 D
Y
S
5
3
1		 D
Y
S
5
7
8		 D
Y
S
3
9
5
S
1
a		 D
Y
S
3
9
5
S
1
b		 D
Y
S
5
9
0		 D
Y
S
5
3
7		 D
Y
S
6
4
1		 D
Y
S
4
7
2		 D
Y
S
4
0
6
S
1		 D
Y
S
5
1
1		 D
Y
S
4
2
5		 D
Y
S
4
1
3
a		 D
Y
S
4
1
3
b		 D
Y
S
5
5
7		 D
Y
S
5
9
4		 D
Y
S
4
3
6		 D
Y
S
4
9
0		 D
Y
S
5
3
4		 D
Y
S
4
5
0		 D
Y
S
4
4
4		 D
Y
S
4
8
1		 D
Y
S
5
2
0		 D
Y
S
4
4
6		 D
Y
S
6
1
7		 D
Y
S
5
6
8		 D
Y
S
4
8
7		 D
Y
S
5
7
2		 D
Y
S
6
4
0		 D
Y
S
4
9
2		 D
Y
S
5
6
5		 D
Y
S
4
4
1		 D
Y
S
4
4
5		 D
Y
S
4
5
2		 D
Y
S
4
6
1		 D
Y
S
4
6
2		 D
Y
S
4
6
3		 D
Y
S
6
3
5		 G
G
A
A
T
1B
07		 Y
G
A
T
A
A
10

FTDNA & Ancestry.com (23andMe.com) Combined:

Colin L. Miller
(FTDNA)		 . 13 23 14 10 11 14 12 12 12 13 13 28 17 9 10 11 11 24 14 19 29 15 15 17 18 10 11
12		 19 23 15 15 17 19 35 37 12
17		 12 11 9 15 16 8 10 10 8 10 10 null 22 23 16 10 12 12 16 8 12 21 21 14 12 11 13 11 11 13 12 . . . . . . . . .
Colin L. Miller
(ancestry.com)		 . 13 23 14 10 11 14 12 12 12 13 13 28 17 9 10 11 11 24 14 19 29 15 15 17 18 10 11
12		 19 23 15 . . . . . 12
17		 12 . . . . . . . . . . . . . . . . . . . 12 . . 14 . . . . . . . 14 14 30 11 11 25 23 10 14
Colin L. Miller
(combined)		 . 13 23 14 10 11 14 12 12 12 13 13 28 17 9 10 11 11 24 14 19 29 15 15 17 18 10 11
12		 19 23 15 15 17 19 35 37 12
17		 12 11 9 15 16 8 10 10 8 10 10 null 22 23 16 10 12 12 16 8 12 21 21 14 12 11 13 11 11 13 12 14 14 30 11 11 25 23 10 14
DYF371X TEST FOR
DYS425=NULL
1234
10C10C13C14C
TEST RESULT: DYS425=10

MATCHES

Note: since surnames are different and only 30 markers were tested, common ancestor was probably several hundred years ago (24+ generations).
Ancestry.com matches and comparisons:
Colin L. Miller
(ancestry.com)		 46/46 13 23 14 10 11 14 12 12 12 13 13 28 17 9 10 11 11 24 14 19 29 15 15 17 18 10 12 19 23 15 . . . . . 17 12 . . . . . . . . . . . . . . . . . . . 12 . . 14 . . . . . . . 14 14 30 11 11 25 23 10 14
RS Robertson 1 13 23 14 10 11 14 12 12 12 13 13 29 17 . . 11 11 24 . 19 29 15 15 17 18 10 12 19 23 . . . . . . . 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 . . 11 . 25 . . .
ER Renfro 1 13 23 14 10 11 14 12 12 12 13 13 29 17 . . 11 11 24 . 19 29 15 15 17 18 10 12 19 23 . . . . . . . 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 . . 11 . 25 . . .
Note: a modal is the average of everyone in the group.
FTDNA matches and comparisons, with links to Ysearch.org:
Colin L. Miller
(ftdna)		 0 13 23 14 10 11 14 12 12 12 13 13 28 17 9 10 11 11 24 14 19 29 15 15 17 18 10 11 19 23 15 15 17 19 35 37 12 12 11 9 15 16 8 10 10 8 10 10 null 22 23 16 10 12 12 16 8 12 21 21 14 12 11 13 11 11 13 12 . . . . . . . . .
R1b1b2a1a1
Modal		 14/25 13 23 14 10 10 14 12 12 11 13 14 28 . . . . . 26 . . 30 . . 18 . . . . . . . . . . . . . . . . . . . . . . 11 . . . . . . . . . . 19 20 . 12 11 13 11 11 13 12 . . . . . . . . .
R1b1b2*
Modal		 48/67 13 24 14 11 11 14 12 12 12 13 13 29 17 9 10 11 11 25 15 19 29 15 15 17 17 11 11 19 23 16 15 18 17 36 38 12 12 11 9 15 16 8 10 10 8 10 10 12 23 23 16 10 12 12 15 8 12 22 20 13 12 11 13 11 11 12 12 . . . . . . . . .
P948J Fitzgerald R1b1b2 1 13 23 14 10 11 14 12 12 12 13 13 29 17 9 10 11 11 24 14 19 29 15 15 17 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UMBJG Robertson R1b* 1 13 23 14 10 11 14 12 12 12 13 13 29 17 . . 11 11 24 . 19 29 15 15 17 18 . . 19 23 . . . . . . . 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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