R. Samuel

Publications63
h-index33
Citations2,697
Highly Influential Citations228
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Phylogenetic relationships in subfamily Tillandsioideae (Bromeliaceae) based on DNA sequence data from seven plastid regions.
TLDR
Results of the combined data set clearly show that subfamily Tillandsioideae is monophyletic, and the earliest divergence separates a lineage comprised of Glomeropitcairnia and Catopsis from the "core" tillandsioids.
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The mahogany family "out-of-Africa": divergence time estimation, global biogeographic patterns inferred from plastid rbcL DNA sequences, extant, and fossil distribution of diversity.
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Phylogenetics of tribe Phyllantheae (Phyllanthaceae; Euphorbiaceae sensu lato) based on nrITS and plastid matK DNA sequence data.
TLDR
Phylogenetic relationships within tribe Phyllantheae, the largest tribe of the family Phyllanthaceae, were examined with special emphasis on the large genus Phyllanthus, and taxonomic divisions based on similar pollen morphology are confirmed, and related taxa share similar distributions.
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Molecular phylogenetic analysis of Phyllanthaceae (Phyllanthoideae pro parte, Euphorbiaceae sensu lato) using plastid RBCL DNA sequences.
TLDR
Analysis of plastid rbcL DNA sequence data of the pantropical family Phyllanthaceae and related biovulate lineages of Euphorbiaceae sensu lato is presented and Antidesma, Bischofia, Hymenocardia, Martretia, and Uapaca, all of which have previously been placed in monogeneric families, are confirmed as members of PhyllAnthaceae.
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Taxonomic revision of Bromeliaceae subfam. Tillandsioideae based on a multi-locus DNA sequence phylogeny and morphology
TLDR
A taxonomic revision of Bromeliaceae subfam Tillandsioideae is presented based on a multi-locus DNA sequence phylogeny and new or re-evaluated morphology that enables the circumscription of monophyletic units using synapomorphic combinations of diagnostic morphological characters.
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Phylogenetic Analyses of Aurantioideae (Rutaceae) Based on Non‐Coding Plastid DNA Sequences and Phytochemical Features
TLDR
Molecular, chemical, and other data show that none of the subtribes recognized within Aurantioideae reflect phylogenetic relationships, and the monophyly of several larger genera in both tribes is supported by relatively high bootstrap percentages and specific chemical profiles for e.g., Clausena, Micromelum, Glycosmis and Atalantia.
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Molecular phylogeny of Macaranga, Mallotus, and related genera (Euphorbiaceae s.s.): insights from plastid and nuclear DNA sequence data.
TLDR
The analyses demonstrated the monophyly of Macaranga and the paraphyly of Mallotus and revealed three highly supported main clades, suggesting migrations or dispersals from Asia to Africa and Madagascar.
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A multi-locus plastid phylogenetic analysis of the pantropical genus Diospyros (Ebenaceae), with an emphasis on the radiation and biogeographic origins of the New Caledonian endemic species.
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Phylogenetic analysis of phagotrophic, photomorphic and osmotrophic euglenoids by using the nuclear 18S rDNA sequence.
TLDR
Phylogenetic analyses of 35 strains carried out using the SSU rDNA suggest that neither the Euglenales nor the Eutreptiales form a monophyletic lineage, thus questioning currently available classifications.
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Phylogeny and systematics of Achillea (Asteraceae-Anthemideae) inferred from nrITS and plastid trnL-F DNA sequences
TLDR
Here and in other groups of Achillea, various instances of conflicting evidence from nrITS, plastid trnL-F, and morphology point to hybridization and lineage sorting.
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