title: Phylogenetic relationships of Carpha and its relatives (Schoeneae, Cyperaceae) inferred from chloroplast trnL intron and trnL-trnF intergenic spacer sequences.
abstract: Within the tribe Schoeneae (Cyperaceae), the relationships between Carpha and its relatives have not been certain, and the limits and definition of Carpha have been controversial. Further, the relationships of species within Carpha have been unclear. In this study, cladistic analyses based on chloroplast trnL intron and trnL-trnF intergenic spacer sequence data were undertaken to estimate phylogenetic relationships in and around Carpha. This study found that Trianoptiles is sister to Carpha; Ptilothrix is sister to Cyathochaeta rather than to Carpha as suggested by some former authors; and Gymnoschoenus is distant from Carpha and its close relatives. The merging of Schoenoides back into Oreobolus is supported. The findings also revealed the non-monophyletic status of Costularia and of Schoenus, and indicated the phylogenetic relationships of species within Carpha.
authors.affiliation: Botany, University of New England, Armidale NSW 2351, Australia.
authors.forename: Xiufu
authors.initials: X
authors.lastname: Zhang
authors.forename: Adam
authors.initials: A
authors.lastname: Marchant
authors.forename: Karen L
authors.initials: KL
authors.lastname: Wilson
authors.forename: Jeremy J
authors.initials: JJ
authors.lastname: Bruhl
mesh_terms: D029785:Cyperaceae / Q000145:classification* / Q000235:genetics; D018742:DNA, Chloroplast / Q000737:chemistry*; D021901:DNA, Intergenic / Q000737:chemistry*; D007438:Introns; D010802:Phylogeny; D017422:Sequence Analysis, DNA
chemical_list: D018742:DNA, Chloroplast; D021901:DNA, Intergenic