Good day all,
The estimate of nucleotide diversity vary hugely between pegas and
Arlequin, yet they both cite Nei (1987).
For example,
Arlequin = 0.7158
pegas = 0.003926426
With the same dataset.
Their definitions of nucleotide diversity are also very different:
Arlequin: "It is computed here as the probability that two randomly
chosen homologous (nucleotide or RFLP) sites are different."
pegas: "The nucleotide diversity is the sum of the number of differences
between pairs of sequences divided by the number of comparisons (i.e.
/n(n - 1)/2/, where /n/ is the number of sequences). "
Now, which is correct? Or more correct? How are they linked? Which
should I use in a paper?
Thanks very much for any help,
Confused Al
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