Figure 1.

Best ML tree for Cucurbitaceae and relatives found with combined chloroplast gene, spacer and intron sequences (5031 nucleotides) analysed under a GTR+Γ+I model with unlinked partitions for coding and non-coding regions. Likelihood bootstrap values greater than 60% are given at the nodes. Rooting follows Zhang et al. (2006). The geographical occurrence of genera is colour coded as follows: green, America (including Galapagos, Hawaii and the Caribbean); yellow, mainland African; brown, Madagascar; red, Asia; blue, Australia/New Guinea/Polynesia; black, Europe.