Comparative genetic and epigenetic diversity in pairs of sympatric, closely related plants with contrasting distribution ranges in south-eastern Iberian mountains.

Relationship between genetic and epigenetic diversity within populations In restricted species, populations that had more genetic diversity tended to have also more epigenetic diversity, as revealed by the statistically significant (or marginally significant) correlation between most of the diversity indices measured for AFLP markers, on one side, and on the other for the group of methylated (M-MSAP) markers ( r = 0.374, 0.653 and 0.555; and P = 0.095, 0.0013 and 0.0089, for PPOL, SI and RI, respectively), or for the group of unmethylated (U-MSAP) markers ( r = 0.372 and 0.540; P = 0.096 and 0.0113, for SI and RI, respectively; Fig. 5 ).

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