Y-Chromosome Markers for Little/Klein/Kline/Cline Project

L. David Roper (roperld@vt.edu)
(www.roperld.com)

Go to Little/Klein/Cline male-line Y-chromosome project web page.

Also see http://www.familytreedna.com/public/Little%5FKlein%5FCline%5FKline/.

First 37 markers:

Note that DWF has 26 markers (DYS464e at the end), instead of the usual 25. According to FTDNA: "Some people have an extra duplication in 464. It's about 2% in European populations, and perhaps 10% in African populations, so we only show it when it occurs."

The reason DYS389-1 is subtracted from DYS389-2 is because the true alleles are DYS389a=DYS389-1 and DYS389b=(DYS389-2) - (DYS389-1). One should subtract 389-1 from 389-2 before calculating relative mutations or calculating phylogenetic networks. If one does not do this one can get either one too many or one too few relative mutations. E.g.:

• 389a = N + 1 & 389b = M + 0, where N and M are positive; correct relative mutation = |N + 1 - N| + |M + 0 - M| = 1.
  (389-1) & (389-2) incorrect relative mutation = |N + 1 - N| + |M + 0 + N + 1 - M - N| = 2.
  Thus, the relative mutation appears to be 2 instead of the real 1.
• 389a = N - 1 & 389b = M + 1, where N and M are positive; correct relative mutation = |N - 1 - N| + |M + 1 - M| = 2.
  (389-1) & (389-2) incorrect relative mutation = |N - 1 - N| + |M + 1 + N - 1 - M - N| = 1.
  Thus, the relative mutation appears to be 1 instead of the real 2.

The first example could cause one to think there are two relative mutations when there is only one, and vice versa for the last example.

The general case is:
389a = N + n & 389b = M + m, where N and M are positive and n & m can be either postive or negative.
Therefore, correct relative mutation = |N + n - N| + |M + m - M| = |n| + |m|.
(389-1) & (389-2) incorrect relative mutation = |N + n - N| + |M + m + N + n - M - N| = |n| + |m + n|
Thus, the difference between the incorrect and correct relative mutations is |n| + |m + n| - |n| - |m| = |m + n| - |m|.

Information about the special case of the DYS464 markers. Note that, recently, the values of the DYS464 markers have been reduced by 1 unit.

Go to Little/Klein/Cline male-line Y-chromosome project web page.

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