Molecular Characterization of Defense of (Oilseed Rape) to AG2-1 Confirmed by Functional Analysis in .

is a necrotrophic, soilborne fungal pathogen associated with significant establishment losses in (oilseed rape; OSR). The anastomosis group (AG) 2-1 of is the most virulent to OSR, causing damping-off, root and hypocotyl rot, and seedling death. Resistance to AG2-1 in OSR has not been identified, and the regulation of OSR defense to its adapted pathogen, AG2-1, has not been investigated.

Yield Loss and Integrated Disease Control of AG2-1 Using Seed Treatment and Sowing Rate of Oilseed Rape.

anastomosis group (AG) 2-1 is an ubiquitous soilborne pathogen causing severe damping-off of oilseed rape (OSR). In the absence of varietal resistance to AG2-1, there are limited methods for integrated disease management. The objectives of these field studies were to quantify yield losses due to AG2-1 and to determine the effectiveness of integrated control using sedaxane, fludioxonil, and metalaxyl-M applied as seed treatment on two OSR genotypes at a sowing rate of 40 (low) or 80 (high) seeds m.

Yield Losses and Control by Sedaxane and Fludioxonil of Soilborne , , and Species in Winter Wheat.

Soilborne , , and species are major causal agents of seedling and stem-base diseases of wheat. Currently, seed treatments are considered the most effective solution for their control. anastomosis groups (AGs) 2-1 and 5, , , and spp.

The Arabidopsis thaliana F-box gene HAWAIIAN SKIRT is a new player in the microRNA pathway.

In Arabidopsis, the F-box HAWAIIAN SKIRT (HWS) protein is important for organ growth. Loss of function of HWS exhibits pleiotropic phenotypes including sepal fusion. To dissect the HWS role, we EMS-mutagenized hws-1 seeds and screened for mutations that suppress hws-1 associated phenotypes.

Temporal and spatial expression of polygalacturonase gene family members reveals divergent regulation during fleshy fruit ripening and abscission in the monocot species oil palm.

Background: Cell separation that occurs during fleshy fruit abscission and dry fruit dehiscence facilitates seed dispersal, the final stage of plant reproductive development. While our understanding of the evolutionary context of cell separation is limited mainly to the eudicot model systems tomato and Arabidopsis, less is known about the mechanisms underlying fruit abscission in crop species, monocots in particular. The polygalacturonase (PG) multigene family encodes enzymes involved in the depolymerisation of pectin homogalacturonan within the primary cell wall and middle lamella.

Development of genome-specific 5S rDNA markers in Brassica and related species for hybrid testing.

The Brassicaceae are targets for DNA manipulation to modify oil content and composition. However, any strategy for creating novel products using genetic modification or traditional breeding must take into account the potential for hybridization with other Brassica species, many of which are important sources of edible oils. In this study we have tested Brassica carinata, a possible target for oil modification, to establish whether it can cross with other Brassica species and related genera, and we have developed molecular DNA assays to confirm hybridization.