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Ecology and Evolutionary Biology Commons

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Journal

2007

Cladistics

Articles 1 - 2 of 2

Full-Text Articles in Ecology and Evolutionary Biology

Grass Phylogeny And Classification: Conflict Of Morphology And Molecules, Bryan K. Simon Dec 2007

Grass Phylogeny And Classification: Conflict Of Morphology And Molecules, Bryan K. Simon

Aliso: A Journal of Systematic and Floristic Botany

The grass family (Poaceae) has been recognized as a unique lineage for more than 200 years, based initially on characters of inflorescence and spikelet morphology and corroborated by anatomical and other features in the latter half of the twentieth century. There have been a number of attempts to derive a phylogeny of sections of the family from structural (morphological and anatomical) characters. However, more recently the Grass Phylogeny Working Group (2001) applied cladistic principles to the whole family using molecular and structural characters. This study produced a single most-parsimonious tree from six molecular sequence data sets, chloroplast restriction site data, …


Phylogenetics Of Andropogoneae (Poaceae: Panicoideae) Based On Nuclear Ribosomal Internal Transcribed Spacer And Chloroplast Trnl–F Sequences, Elizabeth M. Skendzic, J. Travis Columbus, Rosa Cerros-Tlatilpa Dec 2007

Phylogenetics Of Andropogoneae (Poaceae: Panicoideae) Based On Nuclear Ribosomal Internal Transcribed Spacer And Chloroplast Trnl–F Sequences, Elizabeth M. Skendzic, J. Travis Columbus, Rosa Cerros-Tlatilpa

Aliso: A Journal of Systematic and Floristic Botany

Phylogenetic relationships among 85 species representing 35 genera in the grass tribe Andropogoneae were estimated from maximum parsimony and Bayesian analyses of nuclear ITS and chloroplast trnL–F DNA sequences. Ten of the 11 subtribes recognized by Clayton and Renvoize (1986) were sampled. Independent analyses of ITS and trnL–F yielded mostly congruent, though not well resolved, topologies. Arundinella is sister to Andropogoneae in the trnL–F phylogeny and is nested within the tribe in the ITS and combined data trees. Tristachya is sister to Andropogoneae + Arundinella in the ITS phylogeny. Four clades are common to the ITS and …