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Decay of linkage disequilibrium (R2) with distance (bp) in a scattered sample of Eichhornia paniculata from (A) Brazil and (B) Cuba and Jamaica combined. The line on each plot is fit to Weir and Hill's (1986) equation for the expected decay of LD with distance to infer the effective recombination rate, ρ = 4Ner (ρBRAZIL = 0.0100, ρCARIBBEAN = 0.0014).
