DISCOVERING, UNDERSTANDING, AND UTILIZING WHEAT GENES FOR FHB RESISTANCE IN OHIO

Project Title 1 - Uniform Nursery for SRWW and Development Scab Resistance Varieties for Ohio: It is our aim to use MAS and phenotypic selection in a program that will insure a steady release of FHB resistant cultivars while building parents for future success. Project Title 2 - Mapping QTL for Type I and II FHB Resistance from CIMMYT Germplasm derived from a Synthetic Hexaploid: Producing grain with low DON is the ultimate goal for of controlling Fusarium Head Blight, caused by the fungus Fusarium graminearum. Project Title 3 - Mapping Fusarium Head Blight Resistance in Truman Wheat: Our objective is to use QTL mapping to identify FHB resistance genes from Truman. Project Title 4 - Mapping FHB QTL in an IL97-1828 x Clark Derived RIL Population: Our objective in this research project is to identify molecular markers associated with loci for FHB resistance in a source that does not trace back to a Chinese source of FHB resistance (so called ¿native¿ resistance). Project Title 5 - The Molecular Basis for the Low DON Accumulation Phenotype in Winter Wheat: We will test three hypotheses in this proposal: 1. Wheat lines with different levels of RDA have different effects on transcription of Fusarium graminearum genes. 2. Wheat lines with different levels of RDA have different effects on translational and post-translational control of DON production and/or degradation. 3. Variation in levels of Mg2+, other minerals, proanthocyanidin, ferulic acid, polyphenol oxidase and catalase activity in wheat embryos or seeds.