Genetic analyses of Hessian fly resistance in KS 94U275
Samuel-Foo, Michelle Susan
MetadataShow full item record
The need for enhanced genetic diversity in wheat (Triticum aestivum L.) for resistance against the Hessian fly (HF) [Mayetiola destructor Say] is a continuous one, as the HF remains a seriously damaging pest throughout the wheat producing regions of the United States and the world over. Breeding for resistance has been the most practical and economical method for effecting HF control as new genes for resistance are needed because of the continuous evolution of virulence in HF populations. KS 94U275 is an experimental line which indicated HF resistance in greenhouse and field trails. On the basis of segregation ratios (1:1 resistant/susceptible in BC1F1 and 3:1 resistant/susceptible in F2 populations), it was determined that resistance in KS 94U275 is conditioned by a single dominant gene. Microsatellite marker analysis was also performed to identify a DNA marker linked to this gene.