Fusarium Head Blight Research in Winter Wheat
Project Number: 0500-00053-003-12
Start Date: May 27, 2009
End Date: May 26, 2014
Project Title 1 - Accelerating the Development of Scab Resistant Soft Red Winter Wheat: The objectives of this proposal are aimed at further identification of potentially novel sources of resistance as well as pyramiding known sources into our genetic backgrounds that will ensure FHB resistant varieties well into the future. These objectives which are both specific to our program and collaborative across the region include: designing crosses that include FHB-resistant parents with native and/or Chinese sources of resistance, systematically screening all lines developed at the University of Missouri from preliminary yield testing (first test out of head row) and verification of FHB resistance through years of advanced yield testing, evaluating and sharing highly resistant lines with other USWBSI researchers through the U.S. Scab Nursery system, growing and evaluating others’ material in both the Northern (Preliminary and Advanced) and Southern Scab Nurseries, screening commercial entries in the Missouri Winter Wheat Performance Nursery and disseminating that information to growers through the annual variety test book and through talks at field days focusing on the variety trials and haplotyping with all known FHB markers promising lines in the Missouri breeding program to aid in the identification of potentially unique sources of resistance.
Project Title 2 - Mapping Fusarium Head Blight Resistance in Truman Wheat: The objectives for this research are: To identify QTL associated with types I and II resistances as well as low DON and kernel quality retention under FHB disease pressure in a set of 239 F8 recombinant inbred lines developed from the cross Truman/MO 94-317.
Project Title 1: In collaboration with others we will also phenotype RILs developed in the Ernie background to contribute to a mapping project conducted by Dr. Shuyu Liu at Virginia Tech on type I resistance in that variety. Varieties released from these efforts will be released as public varieties with PVP protection and released to growers both in Missouri and in other states where they are adapted. Germplasm will be shared with any interested breeder within the initiative and will be available for research purposes under the conditions of the Wheat Breeders’ Code of Ethics and the Plant Variety Protection Act.
Project Title 2: Field phenotyping will be done in collaboration with Drs. Sneller (Ohio State), Ohm (Purdue) and Van Sanford (University of Kentucky). MO 94-317 is a highly inbred (in excess of F15), highly susceptible (type II FHBI = 80-90%; field FBHI = incidence x severity ranges from 60-80%) breeding lined developed in the MU wheat breeding program. It served as our susceptible parent in a mapping population developed with Ernie and serves as the susceptible check in both the Missouri greenhouse and field nurseries. During this research project, we expect that we will identify QTL associated with all four types of resistance in Truman. Given haplotype results, we anticipate that we may identify QTL that differ from those in Sumai 3 and perhaps other known sources of resistance.