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Table 1 Predicted characteristics of genomic islands of divergence under different evolutionary models

From: Ancient polymorphisms contribute to genome-wide variation by long-term balancing selection and divergent sorting in Boechera stricta

Model F ST d XY Polymorphism within populations Local recombination rate More islands in sympatry
Reproductive isolation, divergence with gene flow [3, 8, 13] Elevated Elevated No prediction No prediction Yes
Local adaptation, divergence without gene flow [3] Elevated Not elevated Reduced No prediction No
Recurrent selective sweeps within populations [2, 4,5,6, 11] Elevated Reduced Reduced Reduced No
Background selection within populations [2, 4,5,6, 11] Elevated Reduced Reduced Reduced No
Sorting of ancestral balanced polymorphisms [3, 7, 13] Elevated Elevated No prediction Unchanged or reduced No