Table 1.
Test of correlated evolution of fruit traits
Trait A | Trait B | Log likelihood |
ΔlnLik | P-value | |
---|---|---|---|---|---|
Dependent | Independent | ||||
Abscission zone | Pericarp features | –74.36 | –78·66 | 8.59 | 0.0293 |
Abscission zone | Indehiscence | –67·11 | –80·85 | 27·48 | 0·0000 |
Indehiscence | Pericarp features | –69·13 | –77·24 | 16·21 | 0·0012 |
Joint | Abscission zone | –68·40 | –80·50 | 24·20 | 0·0000 |
Joint | Pericarp features | –75·80 | –76·39 | 1·19 | 0·1641 |
Joint | Indehiscence | –77·02 | –79·42 | 4·79 | 0·1093 |
The test consists of comparing likelihoods of two models: one in which transitions between two traits are dependent on one another, and the other in which the transitions are independent of one another. A significant difference between models indicates that the traits are evolutionarily linked (significant results in bold). Relative transition rates between trait pairs are on the left. Significance was adjusted for multiple comparisons (three per trait) using Bonferonni correction (α0·05 = 0·0167). Significant associations are in bold (P < 0·0167, corresponding to an unadjusted significance of P < 0·05), and marginally significant associations are in italics (P < 0·033, corresponding to an unadjusted significance of P < 0·1). Values represent the median estimate from analysis conducted across 100 trees sampled from the Bayesian posterior distribution.