Molecular systematics and character evolution in Caryophyllaceae

TitleMolecular systematics and character evolution in Caryophyllaceae
Publication TypeJournal Article
Year of Publication2011
AuthorsGreenberg AK, Donoghue MJ
Pagination1637 - 1652
KeywordsBiology – Classification, Caryophyllaceae, classification, Evolution (Biology), molecular phylogeny, phylogenetic nomenclature, Phylogeny – Molecular aspects, Plants – Classification – Molecular aspects, Plurcaryophyllaceae

The aim of the present study was to infer a substantially larger, more evenly sampled, phylogenetic tree for Caryophyllaceae in order to more confidently resolve relationships within this clade. This would allow us to evaluate previous classification schemes and to infer the evolution of a number of characters that have figured prominently in higher-level taxonomic treatments. We have inferred a 630-tip phylogeny (ca. 30% of the 2200 species) using maximum likelihood analyses of data from the nuclear ribosomal ITS region and five chloroplast genes and intergenic spacers: matK, ndhF, trnL-trnF, trnQ-rps16, and trnS-trnfM. Our results confirm that subfamily Paronychioideae is paraphyletic at the base of Caryophyllaceae. Alsinoideae and Caryophylloideae together form a clade, within which neither subfamily is monophyletic. With only a few exceptions, our results support the tribal classification presented by Harbaugh & al. (2010). In agreement with other recent studies, it appears that m