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Fig. S1: Consensus tree from independent Bayesian analyses of the combined ndhf and phyB datasets with reconstruction of the pattern of photosynthesis type evolution. Numbers at nodes are posterior probabilities. This tree contains 15 more species than shown in Fig. 1; four are C3 species of the BEP clade, and the remainder are C4 species in Andropogoneae or the multi-photosynthetic pathways clade. Their inclusion/exclusion has no effect on optimization of C4 origins on the tree.

Fig. S2: Chronograms for the four calibration schemes, Pollen, Spikelet, Phytolith and Coprolite, with the respective reconstruction of photosynthetic pathway evolution. A maximum parsimony (MP) reconstruction is shown for the Pollen chronogram, and the maximum likelihood (ML) reconstructions are shown for the other three chronograms ( see Fig.1 for the ML reconstruction for Pollen. Spike. Phyt.). Note that the pattern of photosynthesis type evolution is basically the same in all schemes and the MP and ML reconstructions indicate transitions at the same nodes.

Fig. S3: The same tree as Fig. 1, but with nodes numbered to correspond to estimated dates presented in Table S2.

Table S1: Taxa and GenBank numbers.

Table S2: Dates for all nodes in the grass phylogeny.

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FilenameFormatSizeDescription
GCB_1688_sm_appendix_fig1.pdf144KSupporting info item
GCB_1688_sm_appendix_fig2.pdf1569KSupporting info item
GCB_1688_sm_Appendix_Fig3.pdf401KSupporting info item
GCB_1688_sm_Appendix_figure_captions.doc46KSupporting info item
GCB_1688_sm_AppendixA.doc188KSupporting info item
GCB_1688_sm_AppendixB.doc230KSupporting info item

Please note: Wiley Blackwell is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.