Open AccessAffinities in C 3 Cyperus lineages (Cyperaceae) revealed using molecular phylogenetic data and carbon isotope analysis
Author(s) -
LARRIDON ISABEL,
REYNDERS MARC,
HUYGH WIM,
BAUTERS KENNETH,
VAN DE PUTTE KOBEKE,
MUASYA A. MUTHAMA,
BOECKX PASCAL,
SIMPSON DAVID A.,
VRIJDAGHS ALEXANDER,
GOETGHEBEUR PAUL
Publication year - 2011
Publication title -
botanical journal of the linnean society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.872
H-Index - 68
eISSN - 1095-8339
pISSN - 0024-4074
DOI - 10.1111/j.1095-8339.2011.01160.x
Subject(s) - clade , biology , monophyly , sensu , botany , genus , phylogenetic tree , character evolution , cyperaceae , taxon , molecular phylogenetics , zoology , evolutionary biology , poaceae , genetics , gene
Maximum likelihood and Bayesian analyses of nrDNA (ETS1f) and plastid DNA ( rpl32‐trnL , trnH‐psbA ) sequence data are presented for ‘C 3 Cyperus ’ (Cyperaceae). The term ‘C 3 Cyperus ’ indicates all species of Cyperus s.l. that use C 3 photosynthesis linked with eucyperoid vegetative anatomy. Sampling comprises 77 specimens of 61 different taxa, representing nearly all previously recognized subdivisions of C 3 Cyperus and the segregate genera Courtoisina , Kyllingiella and Oxycaryum . According to our results, the Cyperus clade is divided in six well‐supported clades. The first of these clades (clade 1) forms three subclades largely corresponding to Cyperus sections Haspani , Incurvi and Diffusi . Clade 2 comprises the entirely New World C. section Luzuloidei sensu Denton (1978). Clade 3 is a highly diverse clade including two subclades: clade 3a, C. sections Pseudanosporum and Anosporum plus the segregate genera Courtoisina and Oxycaryum ; and clade 3b, C. section Fusci . Clade 4 corresponds to C. section Alternifolii and clade 5 to C. section Leucocephali plus the segregate genus Kyllingiella . The sixth clade is a well‐supported monophyletic clade encompassing all C 4 Cyperus s.l. species (‘C 4 Cyperus ’). This study establishes a phylogenetic framework for future studies. © 2011 The Linnean Society of London, Botanical Journal of the Linnean Society , 2011, 167 , 19–46.