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Table 4 Phylogenetically constructed t-tests of independent strictly temperate and strictly tropical clades (see Fig. 3)

From: Adaptive evolution of seed oil content in angiosperms: accounting for the global patterns of seed oils

Clades (temperate-tropical) df t value P value
Xanthorrhoeaceae-Arecaceae 3 2.53 0.043*
Paeoniaceae-Calophyllaceae 4 3.31 0.015*
Grossulariaceae-Chrysobalanceae 20 −6.79 <0.0001*
Fagaceae-Vochysiaceae 9 16.42 <0.0001*
Nyssaceae-Opiliaceae 1 8.39 0.04*
Betulaceae-Achariaceae 2 0.9 0.23
Saxifragaceae-Achariaceae 1 0.79 0.29
Daphniphyllaceae-Clusiaceae 4 1.14 0.16
Calycanthaceae-Hernandiaceae 2 0.3 0.4
Xanthorrhoeaceae-Orchidaceae 1 0.61 0.33
Lardizabalaceae-Arecaceae 5 −1.69 0.08
  1. *Significant at P < 0.05