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Ancient Vicariance or Recent Long‐Distance Dispersal? Inferences about Phylogeny and South American–African Disjunctions in Rapateaceae and Bromeliaceae Based on ndhF Sequence Data
Both Rapateaceae and Bromeliaceae appear to have arisen at low elevations in the Guayana Shield, experienced accelerated speciation after invading dissected mountainous terrain, and undergone long‐distance dispersal to west Africa recently. Expand
Phylogeny of Capparaceae and Brassicaceae based on chloroplast sequence data.
Results of parsimony and likelihood analyses strongly support the monophyly of Brassicaceae plus Capparaceae, excluding Forchhammeria, and suggest the recognition of three primary clades-Cappar Families subfamily (subf.) Capparoideae, Cleomoidesae, and Br Jurassicaceae. Expand
Urticalean rosids: circumscription, rosid ancestry, and phylogenetics based on rbcL, trnL-F, and ndhF sequences.
To address the composition of the urticalean rosids, the relationships of the component families and analyze evolution of morphological characters, sequence variation is analyzed for a large sampling of these families and various rosid outgroups using rbcL, trnL-F, and ndhF plastid regions. Expand
The butterfly plant arms-race escalated by gene and genome duplications
The coevolutionary interactions between plants and butterflies are examined, and evidence for an escalating evolutionary arms-race is uncovered, providing an important connection between the origins of biodiversity, coev evolution, and the role of gene and genome duplications as a substrate for novel traits. Expand
Congruence versus phylogenetic accuracy: revisiting the incongruence length difference test.
The Yoder et al. (2001) critiqued the ILD test based on the observation that it will sometimes identify data partitions as incongruent when in fact those partitions combine to produce an accurate estimate of organismal phylogeny. Expand
Phylogenetic Relationships of Monocots Based on the Highly Informative Plastid Gene ndhF
The resulting tree is highly resolved and places commelinids sister to Asparagales, with both sister to Liliales-Pandanales in the strict consensus; Pandanales are sister to Dioscoreale in the bootstrap majority-rule tree, just above Petrosaviales. Expand
Understanding the basis of a novel fruit type in Brassicaceae: conservation and deviation in expression patterns of six genes
Overall conservation in gene expression patterns between dehiscent segments of Erucaria erucarioides and Arabidopsis is demonstrated, and modifications in the valve margin positioning genes are suggested to be responsible for differences between heteroarthrocarpic andArabidopsis-like fruits. Expand
Systematics of Capparaceae and Cleomaceae: an evaluation of the generic delimitations of Capparis and Cleome using plastid DNA sequence data
The phylogenetic relationships in Capparaceae and Cleomaceae were examined using two plastid genes, ndhF and matK, to address outstanding systematic questions in the two families. Specifically, theExpand
Molecular Phylogenetics of Core Brassicales, Placement of Orphan Genera Emblingia, Forchhammeria, Tirania, and Character Evolution
The core Brassicales is a biogeographically dispersed lineage that is comprised of many small and morphologically distinct clades plus the large crown group Brassicaceae s. Expand
Biogeography and diversification of Brassicales: A 103million year tale.
Analysis of plastid and mitochondrial sequence data from five gene regions across 151 taxa indicates that some New World clades embedded amongst Old World relatives (e.g., New World capparoids) are the result of different long distance dispersal events, whereas others may be best explained by land bridge migration. Expand