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Neighbour-joining dendrograms showing (A) groupings among bitter, sweet and wild manioc (Manihot esculenta) grown along the major Amazonian rivers and adjacent locations in Brazil, and (B) only along the major Amazonian rivers. Consensus topologies, based on Cavalli-Sforza and Edwards’ (1967) chord distance estimated from 14 nuclear microsatellites, are shown with internal support tested based upon 1000 bootstrap replicates.
