Evolutionary History and Taxonomy of the Euphorbia polycarpa Complex (Euphorbia subg. Chamaesyce sect. Anisophyllum, Euphorbiaceae)
| Autor: | Victor W. Steinmann, J. Mark Porter, Carlos A. Maya-Lastra |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine food.ingredient biology Phylogenetic tree Euphorbiaceae Plant Science Chamaesyce biology.organism_classification Sect 010603 evolutionary biology 01 natural sciences 03 medical and health sciences 030104 developmental biology food Common species Botany Genetics Taxonomy (biology) Polycarpa Euphorbia polycarpa Ecology Evolution Behavior and Systematics |
| Zdroj: | Systematic Botany. 42:257-270 |
| ISSN: | 0363-6445 |
| DOI: | 10.1600/036364417x695565 |
| Popis: | 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 resu... |
| Databáze: | OpenAIRE |
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