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Full-Text Articles in Life Sciences
Large Trees, Supertrees, And Diversification Of The Grass Family, Trevor R. Hodkinson, Nicolas Salamin, Mark W. Chase, Yanis Bouchenak-Khelladi, Stephen A. Renvoize, Vincent Savolainen
Large Trees, Supertrees, And Diversification Of The Grass Family, Trevor R. Hodkinson, Nicolas Salamin, Mark W. Chase, Yanis Bouchenak-Khelladi, Stephen A. Renvoize, Vincent Savolainen
Aliso: A Journal of Systematic and Floristic Botany
Phylogenetic studies of grasses (Poaceae) are advanced in comparison with most other angiosperm families. However, few studies have attempted to build large phylogenetic trees of the family and use these for evaluating patterns of diversification or other macroevolutionary hypotheses. Two contrasting approaches can be used to generate large trees: supermatrix analyses and supertrees. In this paper, we evaluated the suitability of each of these methods for the study of patterns and processes of evolution in the grasses. We collected data from DDBJ/EMBL/GenBank to determine sequence availability and asked how far we are from a complete generic-level phylogenetic tree of the …
A Preliminary Phylogenetic Analysis Of The Grass Subfamily Pooideae (Poaceae), With Attention To Structural Features Of The Plastid And Nuclear Genomes, Including An Intron Loss In Gbssi, Jerrold I Davis, Robert J. Soreng
A Preliminary Phylogenetic Analysis Of The Grass Subfamily Pooideae (Poaceae), With Attention To Structural Features Of The Plastid And Nuclear Genomes, Including An Intron Loss In Gbssi, Jerrold I Davis, Robert J. Soreng
Aliso: A Journal of Systematic and Floristic Botany
Phylogenetic relationships in the grass family (Poaceae), with specific attention to the internal structure of subfamily Pooideae, are analyzed on the basis of nucleotide sequence variation in plastid-encoded genes (matK, ndhF, ndhH, and rbcL). The resulting phylogenetic hypothesis was examined with attention to the taxonomic distributions of two inversions and an insertion/deletion within ndhF, the absence of intron 10 of the nuclear gene GBSSI (waxy), and positions of the boundaries between the Short Single Copy (SSC) region and the neighboring Inverted Repeat (IR) regions of the plastid genome, relative to the endpoints of ndh …
Molecular Phylogenetics Of Bromus (Poaceae: Pooideae) Based On Chloroplast And Nuclear Dna Sequence Data, Jeffery M. Saarela, Paul M. Peterson, Ryan M. Keane, Jacques Cayouette, Sean W. Graham
Molecular Phylogenetics Of Bromus (Poaceae: Pooideae) Based On Chloroplast And Nuclear Dna Sequence Data, Jeffery M. Saarela, Paul M. Peterson, Ryan M. Keane, Jacques Cayouette, Sean W. Graham
Aliso: A Journal of Systematic and Floristic Botany
We conducted a phylogenetic analysis to characterize relationships among Bromus and test the monophyly of five of the seven morphologically distinct groups within Bromus (Poaceae: Pooideae) that have been treated as sections, subgenera, or genera. We sequenced the chloroplast trnL (UAA) intron, the 3'-end of the chloroplast ndhF gene, and the internal transcribed spacers (ITS) of the nuclear ribosomal DNA region for 46 species that represent a large proportion of the morphological and geographical diversity in the genus. Independent analyses of plastid and nuclear ribosomal data identified several lineages in Bromus, but there is some evidence of …