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As part of an extensive DNA-based floristic survey of marine macroalgae in Canadian waters, an unexpected sequence for a Gracilaria sp. was generated from British Columbia. Before further molecular analyses and corresponding morphological/anatomical observations this mystery sequence was temporarily entered into our database as Gracilaria BCsp. Continued(More)
BACKGROUND The assembly of the tree of life has seen significant progress in recent years but algae and protists have been largely overlooked in this effort. Many groups of algae and protists have ancient roots and it is unclear how much data will be required to resolve their phylogenetic relationships for incorporation in the tree of life. The red algae, a(More)
MOTIVATION The increasing use of DNA microarray-based tumor gene expression profiles for cancer diagnosis requires mathematical methods with high accuracy for solving clustering, feature selection and classification problems of gene expression data. RESULTS New algorithms are developed for solving clustering, feature selection and classification problems(More)
Sampling expeditions to Churchill in the Canadian subarctic were completed with the aim of compiling a molecular-assisted survey of the macroalgal flora (seaweeds) for comparison to published accounts for this area, which are based on morphological identifications. Further, because the Churchill region was covered by ice until recently (~10,000 before(More)
The sparse nature of voluntarily reported drug safety data benefits from a system that consolidates the massive amount of data into a manageable format for analysis. This has been done for Australian drug safety data by the Australian Adverse Drug Reaction Advisory Committee (ADRAC) for reactions using the systems organ class (SOC) ontology. There has long(More)
The Florideophyceae is the most abundant and taxonomically diverse class of red algae (Rhodophyta). However, many aspects of the systematics and divergence times of the group remain unresolved. Using a seven-gene concatenated dataset (nuclear EF2, LSU and SSU rRNAs, mitochondrial cox1, and plastid rbcL, psaA and psbA genes), we generated a robust phylogeny(More)
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The red algal family Kallymeniaceae was surveyed along the west coast of Canada using the DNA barcode (COI-5P – 59 region of the mitochondrial cytochrome c oxidase I gene) as a species identification tool. A total of 253 specimens field identified as Pugetia spp. subsequently resolved as five genetic species groups, although only two are reported in the(More)
Multigene phylogenetic analyses were directed at resolving the earliest divergences in the red algal subclass Rhodymeniophycidae. The inclusion of key taxa (new to science and/or previously lacking molecular data), additional sequence data (SSU, LSU, EF2, rbcL, COI-5P), and phylogenetic analyses removing the most variable sites (site stripping) have(More)