Monday, January 25, 2016

GEDmatch explained 3

Organizing your DNA matches

 If you're like me, and can't find any obvious matches at first, you will need to try other methods. This is what I'm doing:

1. Organizing my matches by chromosome.
  I like using the Chr browse option, and I copy the info it generates into an Excel spreadsheet:

Match ID Type Name Matching segments  on Chromosome 8
4 V4 P K (Mxxxx)                        6,778,120 - 12770918 (9.3525 cM)
2 V4 B J(Mxxxx)                      19,754,748 - 24562586 (8.8901 cM) (734 SNP)
J. A (FTDNA)                      21,287,496 - 29081350 (11.65 cM)
1 F2 L T (Axxxx)                      21,422,266 - 27024449 (8.9514 cM)
Sct/Eng S F  (Axxxxx)                      29,802,177 - 38, 701, 633 (6.1 cM) (1491 SNP)
England Gypsy *SD (Mxxxxxx)                      42,587,505 - 55028701 (5.6998 cM) Xmatch

I keep the "Match ID" and "Type" columns if I find out information on my matches. 
Yes, I am part Gypsy, and this is how I found that out.  

When I get another match on this chromosome, I can add it at the bottom, and use the "sort" function of Excel to place it in order. You can also do this with the "CSV" function, but it only goes down to 7 cM.  I save segments that are 5-7 cM, if the person also has another piece that is over 7 cM.

I also note if an autosomal match also is a X-match. An X-match rules out a match on my paternal grandfather's side.

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