DNA results and discussions


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Results of the test for 25 Markers

The Table gives the country of origin and the person that provided the test sample.  The remaining columns, e.g. DYS 388, are the names given to the markers and  refers to the position of this small fragment in the original DNA chain.

Country -Person

DYS 393

DYS 390

DYS 19

DYS 391

DYS 385a

DYS 385b

DYS 426

DYS 388

DYS 439

DYS 3891

DYS 392

DYS 3892

DYS 458

DYS 459

DYS 459b

DYS 455

DYS 454

DYS 447

DYS 437

DYS 448

DYS 449

DYS 464a

DYS 464b

DYS 464c

DYS 464d

England

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bill Burgar

12

24

14

11

12

14

12

12

14

13

13

29

18

9

10

11

11

24

14

18

30

15

15

16

16

Andrew Burgar

13

24

14

11

12

14

12

12

14

13

13

29

18

9

10

11

11

24

14

18

30

15

15

16

16

Shetland

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Jack Burgess

13

24

14

11

12

14

12

12

13

13

13

29

18

9

10

11

11

24

14

18

30

15

15

16

16

Bertie Burgess

13

24

14

11

12

15

12

13

13

13

13

29

18

9

10

11

11

24

14

18

30

15

15

16

16

Normally, if 23 out of the 25 markers agree, and you have the same surname, then you should be related.

Conclusions of the 25 Marker DNA Test

The results of the English Burgar family show that Bill Burgar (born 1937) and Andrew Burgar (b 1963) are related. We differ only on one marker, DYS No. 393.  Andrew has a value of 13 (typical of about 80% of Europeans) but Bill has a value of 12, (as in 12% of Europeans). This suggests that one of Billís ancestors has undergone this genetic mutation since about 1700, when Andrewís branch and Billís branch of the Burgar family split.

See relationship between Bill and Andrew Burgar

Andrew Burgar and Jack Burgess  differ by one marker (DYS No 439).  This is the only difference between Andrew and Jack (i.e. a 24/25 marker agreement) so they seem to be positively related.  Bill has a two marker difference with Jack, but since Bill is related to Andrew (see below), then Bill Burgar and Jack Burgess are also related.

Andrew and Bill have a value of 14 (typical of only 2% of the European population) whereas Jack Burgess and Bertie have a value of 13 (typical of only 12 % of the European population).  Both these values are rare and it must be assumed that the values of Andrew and Bill changed from 13 to 14 in a common ancestor.  This might have been John Burgar (born about 1742 and living in London) or an ancestor of his.

 

Bertie Burgess has 2 markers different from Jack Burgess and is therefore related to him.  Like Bill, Bertieís part of the family would have undergone two changes of marker.  It is not possible to say when this happened.  Since Jack is the most related to Bill and Andrew and also to Bertie, it is assumed that he has undergone the fewest mutations. 

I have searched some DNA database sites with about 20,000 samples to see if others persons have similar signatures.

I have found that when comparing the first 12 markers against Jackís data that:

6 other persons have the same signature.  About 100 persons have the same signature except for one marker.  This shows that on the basis of the first 12 markers the Burgess/Burgar are not unusual and have typically Celtic genes.

However, on the last 13 markers of the 25 (which we all have in common) there are only 6 persons who are within 2 markers different.  These 6 persons are markedly different on the first 12 markers.  The result is that Jack has only a few people that are within 5 markers of his signature when the 25 markers are considered.  Andrew, Bertie and Bill who have had some rare mutations have even less relationship to other people.

The Shetland and English branch of the family thus seem to be a distinct family unit.

The most likely scenario regarding the stage of the mutations are shown in the following diagram.

Bertie could have mutated before Bill and Andrew (Bertie 1) or after Bill and Andrew mutated (possibility Bertie 2).

Having established that the English Burgar family came from Shetland, we have next to find the origins of the Burgar family in Shetland.

See Shetland Burgar family (this has yet to be written)

We also need to determine the meaning of the term Celtic ancestry.

 

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