- Chromosomal and Genetic Variations
- Plant Disease Resistance and Genetics
- Plant Reproductive Biology
- Plant tissue culture and regeneration
- Plant Virus Research Studies
- Mechanical Behavior of Composites
- Photosynthetic Processes and Mechanisms
- Plant Pathogens and Resistance
- Nitrogen and Sulfur Effects on Brassica
- Plant-Microbe Interactions and Immunity
- Wheat and Barley Genetics and Pathology
- Insect-Plant Interactions and Control
- Fiber-reinforced polymer composites
- Lipid metabolism and biosynthesis
- Composite Material Mechanics
- Plant Genetic and Mutation Studies
- Insect behavior and control techniques
- Plant Molecular Biology Research
- Garlic and Onion Studies
- Advanced Control Systems Optimization
- Fatigue and fracture mechanics
- CRISPR and Genetic Engineering
- Additive Manufacturing and 3D Printing Technologies
- Plant Physiology and Cultivation Studies
- Epoxy Resin Curing Processes
Université de Moncton
2011-2023
Vaughn College of Aeronautics and Technology
2023
Stanford University
2023
McGill University
1998-2015
Boston Landmarks Commission
1997-2009
Cégep Saint-Jean-sur-Richelieu
1992-2003
Agriculture and Agri-Food Canada
1989-1998
North Carolina State University
1998
University of California, Davis
1985-1987
Summary A single radish nuclear gene, Rfo , restores Ogura ( ogu ) cytoplasmic male sterility (CMS) in Brassica napus . map‐based cloning approach relying on synteny between and Arabidopsis was used to clone gene encoding a 687‐amino‐acid protein with predicted mitochondrial targeting pre‐sequence found confer fertility upon transformation into CMS B. This like the recently described Petunia Rf codes for pentatricopeptide repeat (PPR)‐containing multiple, this case 16, PPR domains. Two...
ABSTRACT A detailed linkage map of lettuce was constructed using 53 genetic markers including 41 restriction fragment length polymorphism (RFLP) loci, five downy mildew resistance genes, four isozyme loci and three morphological markers. The were distributed into nine groups cover 404 cM which may be 25-30% the genome. majority (31 34) RFLP probes detected single segregating although seven these have been homologous to further monomorphic loci. When several by a probe, generally linked,...
F 2 segregation analyses of DNA restriction fragment length polymorphisms (RFLPs) detected between a cabbage line (No. 86-16-5) resistant to race Plasmodiophora brassicae (Woronin), the fungus responsible for clubroot disease, and rapid cycling (CrGC No. 85) was used construct detailed genetic map Brassica oleracea. RFLP markers were random seedling-specific cDNA clones. The 201 loci so far mapped in B. oleracea covered 1112 cM. They are assembled into nine major linkage groups four small...
The origin of introduction the cabbage root fly, Delia radicum Linnaeus to north-eastern coast North America in 19th century has been assumed be from Europe. From that point introduction, D. gradually spread westward occupy available ecological niches. DNA fingerprinting and egg micromorphology were used determine most likely geographical American populations this species. Forty-five informative RAPD loci obtained ten primers three criteria for studied. These characters indicated a common...
W Y Cheung, N Hubert, and B S Landry Allelix Crop Technologies, Mississauga, Ontario, Canada.
F 2 segregation analyses of DNA restriction fragment length polymorphisms (RFLPs) detected between two cultivars canola ('Westar' × Topas') was used to construct a detailed genetic map Brassica napus. RFLP markers were from seedling-specific cDNA library. They either randomly selected or previously characterized as clones. The 120 loci so far mapped in B. napus covered 1413 recombination units. are assembled into 19 linkage groups. Seventeen found unlinked any other markers. Few with the...
Biological control of insects that feed on our crops has become more practical in recent years by mass release egg parasitoid microhymenoptera. Trichogramma species are now commercially reared and spread commercial fields to specific insect pests. Microhymenoptera are, however, very small morphologically indistinguishable within species, although strains a given differ their efficiency Traditional taxonomy is unable differentiate microhymenoptera at the strain level. It becoming increasingly...
We present a framework for online generation of robust motion plans robotic systems with nonlinear dynamics subject to bounded disturbances, control constraints, and state constraints such as obstacles. In an offline phase, one computes the structure feedback controller that can be efficiently implemented track any feasible nominal trajectory. The phase leverages contraction theory, specifically, Control Contraction Metrics, convex optimization characterize fixed-size “tube” is guaranteed...
The oilseed rape plant, Brassica napus, possesses two endogenous male sterile cytoplasms, nap and pol. Previous studies have shown that nuclear restoration of pol cytoplasmic sterility (CMS) is conditioned by a gene, Rfp, also involved in modifying transcripts the CMS-associated orf224/atp6 mtDNA region. We now find restorer gene Rfn apparently identical to Mmt, conditions modification from several different regions, including one associated with CMS contains orf222, chimeric related orf224....
Abstract Previous studies have shown that the mitochondrial orf224/atp6 gene region is correlated with Polima (pol) cytoplasmic male sterility (CMS) of Brassica nupus. We now extend this correlation by showing effects nuclear fertility restoration on transcripts cosegregate pol restorer Rfp1 in genetic crosses. also show, however, recessive rpf1 allele, or a very tightly linked gene, acts as dominant designated Mmt (modifier transcripts), controlling presence additional smaller nad4 and...