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A soybean cyst nematode resistance gene points to a new mechanism of plant resistance to pathogens
The map-based cloning of a gene at the Rhg4 (for resistance to Heterodera glycines 4) locus is reported, a major quantitative trait locus contributing to resistance to this pathogen, revealing an unprecedented plant resistance mechanism against a pathogen.
Distribution, Density, and Diversity of Heterodera glycines in Missouri.
The data show that Heterodera glycines is widespread in Missouri, that most infested fields have population densities above the action threshold, and that there is considerable genetic diversity among H. glycines field populations.
Cyclical systemic colonization inVerticillium-infected tomato
The results indicated that wilt is more systemic and also more dynamic in terms of fungal population fluctuations than previously thought.
The soybean GmSNAP18 gene underlies two types of resistance to soybean cyst nematode
It is demonstrated that the rhg1-a Peking-type GmSNAP18 is sufficient for resistance to SCN in combination with Rhg4, and is an example of a pathogen resistance gene that has evolved to underlie two types of resistance, yet ensure the same function within a single plant species.
A Standard Greenhouse Method for Assessing Soybean Cyst Nematode Resistance in Soybean: SCE08 (Standardized Cyst Evaluation 2008)
The authors' objective was to offer a set of standards for assessing and labeling SCN-resistant cultivars that would allow farmers to make direct comparisons of cultivars.
Variability in Distribution and Virulence Phenotypes of Heterodera glycines in Missouri During 2005.
- M. Mitchum, J. A. Wrather, R. Heinz, J. Shannon, Gene Danekas
- Biology, MedicinePlant disease
- 9 October 2007
The soybean cyst nematode, Heterodera glycines, is a serious economic threat to soybean producers in Missouri and needs to be carefully monitored and used only in rotation with nonhost crops and soybean cultivars with resistance from other sources.
Systematic Mutagenesis of Serine Hydroxymethyltransferase Reveals an Essential Role in Nematode Resistance1[OPEN]
Mapping of the identified mutations onto the SHMT structural model uncovered key residues for structural stability, ligand binding, enzyme activity, and protein interactions, suggesting that GmSHMT08 has additional functions aside from its main enzymatic role in SCN resistance.
Soybean Cyst Nematode, Heterodera glycines, Populations Adapting to Resistant Soybean Cultivars in Kentucky.
Survey results indicate that cultivars deriving their H. glycines resistance from PI88788 may have reduced effectiveness in suppressing current H.glycines populations in KY, and producers may need to grow soybean cultivars derived from non-PI88788 resistance sources to successfully manage H. Glycine max populations in the future.
Distribution and Virulence Phenotypes of Heterodera glycines in Missouri.
The soybean cyst nematode, Heterodera glycines, is the most economically important pathogen of soybean in Missouri. Knowledge of the nematode's distribution and ability to adapt to resistant…
A virus-induced gene silencing method to study soybean cyst nematode parasitism in Glycine max
The VIGS method described here provides a new tool to identify genes involved in soybean-nematode interactions and could be adapted to study genes associated with any root pathogenic or symbiotic associations.