Climatic and biogeographic processes underlying the diversification of the pantropical flowering plant family Annonaceae.

QuaSSE analyses suggest the following: PC1 fits more with a drift sigmoidal model (AIC = 6505.917, AICc ω = 0.998) with a negative trend (drift = -0.022), indicating that species with higher PC1 values had lower speciation rates; while PC2 fits more with a drift hump model (AIC = 7387.070, AICc ω = 0.897) with a positive trend (drift = 0.008) ( Supplementary Tables S10 , S11 ), which indicates species with the highest and lowest PC2 values had lower speciation rates.

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