DOI: 10.5061/dryad.hj1p1
title: Data from: Evolutionary History and Taxonomy of the Euphorbia polycarpa Complex (Euphorbia subg. Chamaesyce sect. Anisophyllum, Euphorbiaceae)

description: Euphorbia polycarpa (Euphorbia subg. Chamaesyce sect. Anisophyllum) is one
 of the most common species of the Sonoran Desert. It exhibits a wide range
 of morphological variation and has been considered as a taxonomic complex.
 Since the late nineteenth century more than seven varieties have been
 described for the complex, some with very restricted distributions.
 Because of morphological intergrades present in the complex, there has
 been much confusion among taxonomists, and it became necessary to clarify
 the taxonomy of this complex using molecular phylogenetic evidence in
 addition to morphology alone. In this paper we reconstruct the
 phylogenetic relationships for the E. polycarpa complex based on molecular
 information from the psbA-trnH and ITS spacers, using Bayesian inference.
 Morphology was compared with phylogenetic results, and we also explored
 geographic patterns of the varieties of the complex, as well as closely
 related species of Euphorbia sect. Anisophyllum. Taking into account the
 results obtained, we propose that E. polycarpa is treated as a single,
 highly variable species. Given the incongruities among morphology,
 geography, and evolutionary history inferred from molecular data, we do
 not recognize any of the varieties proposed previously. The phylogeny
 presented shows three well-supported putative lineages and suggest a
 complex evolutionary history within E. polycarpa.
description: POLY_ITS_gN_FINALNEXUS file for ITS matrix aligned.POLY_PSB_gN_iC_FINALNEXUS file for psbA-trnH data alignedFigure S1FIG. S1. Phylogenetic reconstruction using the majority rule consensus from Bayesian analyses of the nuclear region ITS and chloroplast region psbA-trnH concatenated. Numbers above the branches are Bayesian posterior probabilities (PP).Figure S2FIG. S2. Ancestral state reconstruction for the character: “Leaves of two different sizes”, on the phylogenetic hypothesis based on psbA-trnH. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S3FIG. S3. Ancestral state reconstruction for the character: “Leaves of two different sizes”, on the phylogenetic hypothesis based on ITS. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S4FIG. S4. Ancestral state reconstruction for the character: “Leaf shape”, on the phylogenetic hypothesis based on psbA-trnH. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S5FIG. S5. Ancestral state reconstruction for the character: “Leaf shape”, on the phylogenetic hypothesis based on ITS. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S6FIG. S6. Ancestral state reconstruction for the character: “Stipule shape”, on the phylogenetic hypothesis based on psbA-trnH. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S7FIG. S7. Ancestral state reconstruction for the character: “Stipule shape”, on the phylogenetic hypothesis based on ITS. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S8FIG. S8. Ancestral state reconstruction for the character: “Glandular tricomes on the peduncle”, on the phylogenetic hypothesis based on psbA-trnH. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S9FIG. S9. Ancestral state reconstruction for the character: “Glandular tricomes on the peduncle”, on the phylogenetic hypothesis based on ITS. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S10FIG. S10. Ancestral state reconstruction for the character: “Pubescence on vegetative parts”, on the phylogenetic hypothesis based on psbA-trnH. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S11FIG. S11. Ancestral state reconstruction for the character: “Pubescence on vegetative parts”, on the phylogenetic hypothesis based on ITS. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S12FIG. S12. Ancestral state reconstruction for the character: “Appendage margin”, on the phylogenetic hypothesis based on psbA-trnH. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S13FIG. S13. Ancestral state reconstruction for the character: “Appendage margin”, on the phylogenetic hypothesis based on ITS. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S14FIG. S14. Ancestral state reconstruction for the character: “Zigzag steams”, on the phylogenetic hypothesis based on psbA-trnH. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S15FIG. S15. Ancestral state reconstruction for the character: “Zigzag steams”, on the phylogenetic hypothesis based on ITS. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S16FIG. S16. Ancestral state reconstruction for the character: “Appendages long (mm)”, on the phylogenetic hypothesis based on psbA-trnH. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S17FIG. S17. Ancestral state reconstruction for the character: “Appendages long (mm)”, on the phylogenetic hypothesis based on ITS. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S18FIG. S18. Ancestral state reconstruction for the character: “Relation between the width of the appendage and width of the gland”, on the phylogenetic hypothesis based on psbA-trnH. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S19FIG. S19. Ancestral state reconstruction for the character: “Relation between the width of the appendage and width of the gland”, on the phylogenetic hypothesis based on ITS. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S20FIG. S20. Ancestral state reconstruction for the character: “Sonoran biome and adjacent areas”, on the phylogenetic hypothesis based on psbA-trnH. Circles denote the state and circles in the nodes show the proportional likelihood visually.Figure S21FIG. S21. Ancestral state reconstruction for the character: “Sonoran biome and adjacent areas”, on the phylogenetic hypothesis based on ITS. Circles denote the state and circles in the nodes show the proportional likelihood visually.