S. Graham

Publications119
h-index49
Citations11,530
Highly Influential Citations599
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A DNA barcode for land plants
TLDR
The 2-locus combination of rbcL+matK will provide a universal framework for the routine use of DNA sequence data to identify specimens and contribute toward the discovery of overlooked species of land plants.
Choosing and Using a Plant DNA Barcode
TLDR
The process of selecting and refining a plant barcode is reviewed; the factors which influence the discriminatory power of the approach are evaluated; some early applications of plant barcoding are described and summarise major emerging projects; and outline tool development that will be necessary for plant DNA barcode to advance.
Phylotranscriptomic analysis of the origin and early diversification of land plants
TLDR
Strong and robust support is found for a sister-group relationship between land plants and one group of streptophyte green algae, the Zygnematophyceae, and suggests that phylogenetic hypotheses used to understand the evolution of fundamental plant traits should be reevaluated.
Multiple Multilocus DNA Barcodes from the Plastid Genome Discriminate Plant Species Equally Well
TLDR
Resolution to the contentious debate on plant barcoding should involve increased attention to practical issues related to the ease of sequence recovery, global alignability, and marker redundancy in multilocus plant DNA barc coding systems.
Are plant species inherently harder to discriminate than animal species using DNA barcoding markers?
TLDR
The results using common metrics demonstrate that the number of species supported as monophyletic using barcoding markers is higher in animals than plants, even after controlling for the amount of parsimony‐informative information per species.
Early genome duplications in conifers and other seed plants
TLDR
Analysis of transcriptomes from 24 gymnosperms and 3 outgroups indicates that polyploidy has contributed to the evolution of conifers and other gymnos perms, contrary to previous genomic research that reported an absence of polyploidsy in the ancestry of contemporary gymnOSperms.
Hydatellaceae identified as a new branch near the base of the angiosperm phylogenetic tree
TLDR
It is shown that Hydatellaceae, a small family of dwarf aquatics that were formerly interpreted as monocots, are instead a highly modified and previously unrecognized ancient lineage of angiosperms, indicating that water lilies are part of a larger lineage that evolved more extreme and diverse modifications for life in an aquatic habitat than previously recognized.
Microstructural Changes in Noncoding Chloroplast DNA: Interpretation, Evolution, and Utility of Indels and Inversions in Basal Angiosperm Phylogenetic Inference
TLDR
It is argued that no existing scheme for coding overlapping indels for phylogenetic analysis, or dealing with them in alignment, is ideal, and one simple scheme is preferred.
Utility of 17 chloroplast genes for inferring the phylogeny of the basal angiosperms.
TLDR
Combined data from these 17 genes permit sturdy, well-resolved inference of major aspects of basal angiosperm relationships, demonstrating that the new primers are valuable tools for sorting out the deepest events in flowering plant phylogeny.
Multigene Analyses of Monocot Relationships
TLDR
Analysis of supra-familial relationships of monocots based on a combined matrix of nuclear 18S and partial 26S rDNA, plastid atpB, matK, ndhF, and rbcL, and mitochondrial atpl DNA sequences provides higher bootstrap support for nearly all relationships than in previously published analyses.
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