Additional file 7.

Table S4. Results of the stepwise discriminant analysis based on 18 populations/species of the D. buzzatii cluster (see Table 1). The forward elimination method yielded the same results as the backward method, but the latter could not be used because all variables significantly discriminated between populations/species.

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Oliveira et al. BMC Evolutionary Biology 2011 11:179   doi:10.1186/1471-2148-11-179