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The posterior probabilities of (a) the lag between the ζ duplication and the diversification of crown spermatophytes and (b) the lag between the ɛ duplication and the diversification of crown angiosperms. The posterior probabilities of the absolute age of the WGD events (blue) and diversification (red) are also shown for (c) ζ and spermatophytes and (d) ɛ and angiosperms. (Online version in colour.)
