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rot resistance
Effects of the Nicotiana debneyi black root rot resistance factor on agronomic and chemical traits in burley tobacco
      
Association of an isozyme locus and strawbreaker foot rot resistance derived from Aegilops ventricosa in wheat
      
Thirty lines from a cross between VPM/ Moisson 421 and Selection 101 were used in the study to determine whether strawbreaker foot rot resistance derived from Aegilops ventricosa was associated with an allele for endopeptidase.
      
The endopeptidase allele frequencies of 30 lines were compared with strawbreaker foot rot resistance as measured by the lesion severity index.
      
The results demonstrate a close association between the gene for strawbreaker foot rot resistance and the endopeptidase allele derived from Ae.
      
Genetics of nonsenescence and charcoal rot resistance in sorghum
      
This drought-tolerance mechanism is often equated with charcoal rot resistance, a widespread root and stalk disease of great destructive potential.
      
Therefore, the inheritance of charcoal rot resistance was investigated directly, by exposure of sorghum to Macrophomina phaseolina, the causal organism, and indirectly, by determination of the inheritance of nonsenescence.
      
The same conclusion was reached for charcoal rot resistance.
      
DNA from near-isogenic lines (NILs) of tomato differing in corky root rot resistance was screened with 575 random oligonucleotide primers to detect polymorphic DNAs linked to py-1.
      
These PCR markers will allow rapid large-scale screening of tomato populations for corky root rot resistance.
      
Isolation and characterization of Tnd-1, a retrotransposon marker linked to black root rot resistance in tobacco
      
The gene associated with black root rot resistance co-segregates with the retrotransposon in tobacco and is thought to be contained within the introgressed fragment marked by Tnd-1.
      
Molecular markers linked to stem rot resistance in rice
      
One AFLP marker showed significant association with stem rot resistance and accounted for approximately 45.0% of the phenotypic variation in 59 progenies.
      
The molecular markers linked to stem rot resistance should facilitate selection for this recalcitrant trait in rice breeding programs by eliminating the need for early generation screening.
      
To facilitate breeding for Aphanomyces root rot resistance and to better understand the inheritance of partial resistance, our goal was to identify QTLs associated with field partial resistance.
      
A total of seven genomic regions were associated with Aphanomyces root rot resistance.
      
A wide variability was also found for tuber soft rot resistance, and hybrids with high levels of resistance were identified.
      
QTL mapping of Sclerotinia midstalk-rot resistance in sunflower
      
 

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