553-10 Breeding and Genomics of Fusarium Head Blight in Soft Red Winter Wheat: Research Progress and Ongoing Projects.

Poster Number 332

See more from this Division: C01 Crop Breeding & Genetics
See more from this Session: Wheat Breeding (includes Graduate Student Competition) (Posters)

Monday, 6 October 2008
George R. Brown Convention Center, Exhibit Hall E

Shuyu Liu, Crop and Soil Environmantal Sciences, Virginia Tech, Blacksburg, VA, Carl Griffey, Department of Crop & Soil Environmental Sciences, Virginia Tech, Blacksburg, VA, Jianli Chen, University of Idaho Aberdeen Research & Extension Center, Aberdeen, ID, Anne McKendry, Univ. of Missouri, Columbia, MO, Gina Brown-Guedira, USDA-ARS, Raleigh, NC, Clay Sneller, Horticulture & Crop Science, Ohio State Univ. - OARDC, Wooster, OH and J. Paul Murphy, Box 7629, North Carolina State Univ., Raleigh, NC
Abstract:
Fusarium head blight (FHB) is mainly caused by Fusarium graminearum in the USA and results in reductions in both grain yield and quality in many production regions. More than 60 quantitative trait loci (QTL) have been mapped in wheat germplasm worldwide. Diagnostic molecular markers identified in initial mapping studies and tightly linked markers developed in a few fine-mapping studies of FHB resistance QTL are being applied in breeding using marker-assisted selection. This presentation will review the performance of some varieties and advanced lines which contain Virginia Tech and other native sources of resistance. The materials were evaluated in the uniform scab nurseries during the 2006 - 2007. The utility of native sources of FHB resistance will be highlighted based on breeding experience. Marker saturation of FHB resistance QTL regions in the cultivar Ernie and mapping of resistance QTL in the cultivar Massey will be presented as case studies. Combining of phenotypic and marker-assisted selection in breeding FHB resistance is discussed. Pyramiding different FHB resistance QTL from various exotic and native sources is the focus of current breeding efforts.

See more from this Division: C01 Crop Breeding & Genetics
See more from this Session: Wheat Breeding (includes Graduate Student Competition) (Posters)