Open AccessPhylogenetic systematics of E rythronium ( L iliaceae): morphological and molecular analyses
Author(s) -
Clennett John C. B.,
Chase Mark W.,
Forest Félix,
Maurin Olivier,
Wilkin Paul
Publication year - 2012
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.1095-8339.2012.01302.x
Subject(s) - biology , botany , maximum parsimony , clade , sister group , herbarium , systematics , liliaceae , phylogenetic tree , molecular phylogenetics , zoology , monophyly , genus , taxon , taxonomy (biology) , genetics , gene
For a nearly complete set of species of E rythronium ( L iliaceae), we examined two plastid loci (the rps16 intron and the 5′ trnK intron, excluding the matK exon), one nuclear locus ( nrITS ) and morphology to evaluate species relationships and that of E rythronium to A mana , the putatively most closely allied genus. A matrix of morphological characters was developed through observation of around 900 living and herbarium specimens; evolution of these was examined using character optimization on the combined (total‐evidence) tree. Parsimony methods were used to examine the morphological and molecular data sets produced, both separately and in combination, with B ayesian methods also used on the molecular data sets. These established that the genus is probably sister to A mana (although most analyses placed A mana inside E rythronium ) and that T ulipa is sister to the pair of E rythronium and A mana . Within E rythronium , there are three strongly supported geographically distinct clades: (1) Eurasian and (2) eastern and (3) western N orth A merican. Separation of species in these three clades is less clear, particularly among the western N orth A merican taxa. © 2012 The Linnean Society of London, Botanical Journal of the Linnean Society , 2012, ●●, ●●–●●.