ARS | Publication request: Development and Evaluation of Hard Red Spring Wheat QTL-NILs from Diverse FHB Resistance Sources

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: October 26, 2009
Publication Date: December 7, 2009
Citation: Garvin, D.F. 2009. Development and Evaluation of Hard Red Spring Wheat QTL-NILs from Diverse FHB Resistance Sources [abstract]. In: Proceedings of the 2009 National Fusarium Head Blight Forum, December 7-9, 2009, Orlando, Florida. p. 118.

Technical Abstract: Fusarium head blight (FHB) resistance has been identified in many diverse wheat genotypes from around the world, and a multitude of FHB resistance QTLs has been reported. One challenge that wheat breeders face is deciding which QTLs reported in unadapted or exotic backgrounds will be worth the time and resource investment associated with their introgression into regionally adapted germplasm. Over the course of several years, we used backcrossing coupled to marker-assisted selection to develop near isoline sets of the FHB-susceptible hard red spring wheat cultivars Norm, Wheaton, and Apogee that possess one of five reported FHB resistance QTLs from a range of unadapted and exotic wheat sources. The FHB resistance of these near-isoline series has been evaluated in multiple greenhouse and field studies. Results of these studies and future research directions based on the findings will be presented.