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Wednesday, November 11, 2009

Family Tree DNA's Walk the Y yields new SNP's for Haplogroup J2


A program by Family Tree DNA, Walk through the Y, was set up late last year to allow customers to search for new SNP's or branches to their respective Y-DNA haplogroups. Recent testing on a number of Haplogroup J2 participants has yielded 9 new SNP's, many of which will prove to be phylogenetically informative in branching current subclades. Below is a list of SNP's found to date:
  • L207.1 A6813448G found in J-L70 and J-L25 participants. May be synonomous with J-L24 or L25.
  • L210 A15001591T found in one J-M67 participant.
  • L212 T21120853C found in J-M67 and J-L25 participants.
  • L218 deletion at 20199329 found in J-M67 participant.
  • L227 C6919963T found in J-M67 participant.
  • L228 C7831358T found in J-M67 and J-L25 participants.
  • L229 C6813447T found in one J-L25 participant, ancestral in another.
  • L230 G20327921A found in one J-L25 participant, ancestral in another
  • L231 C13524835G found in one J-L25 participant, ancestral in J-M67.

It is likely more SNP's will be found as a more thorough analysis of the results has yet to be done. Also, results from other J2 participants have yet to arrive. SNP's can be used to determine the branchin within the Y-Chromosome tree and it is likely some of these SNP's will determine new terminal branches under J-M67 and J-L25.

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