| FY07 Research Priorities | Publications/Report Updates
Host Genetics and Genomics (HGG)
| HGG Research Area Committee (RAC) Updated: 2/5/07 |
| Chair, Herb Ohm, Purdue University, IN |
| Vice-Chair, Gary Muehlbauer, University of Minnesota, MN |
| Guihua Bai, USDA-ARS, KS |
| Bill Berzonsky, North Dakota State University, ND |
Program Description
The Host Genetics and Genomics (HGG) research area (RA) will focus on understanding the genetic/molecular basis of native host plant resistance. Practical outcomes of research in this area are science and technologies which inform and accelerate pre-breeding and breeding, and novel candidate genes for transformation leading to commercial, FHB resistant varieties.
This research area includes all elements of the former Biotechnology research area except those related to genetic engineering and transformation. This area also includes genetic studies of host resistance (except allelism testing), and marker validation studies previously covered in other areas.
Research in this area includes: 1) genetic (classical or molecular), genomic (structural, functional, or comparative), or proteomic studies leading to discovery and/or identification of diagnostic markers for, and/or the nucleotide sequence of genes conferring native host plant resistance; 2) studies of mechanisms of resistance/susceptibility with the aim of facilitating efforts to map and manipulate relevant genes, or identification of candidates for transgenic approaches to resistance, and 3) adaptive research which leads to novel ‘breeder-friendly’ (low cost, high throughput, etc.) diagnostic markers.
Research activities employing transformation should be submitted to the Genetic Engineering and Transformation (GET) research area (RA) as stand alone proposals.
FY07 Research Priorities
The Host Genetics and Genomics (HGG) research area (RA) of the U.S. Wheat & Barley Scab Initiative (USWBSI) supports research efforts addressing one or more of the following priorities:
Mapping
- Genetic analysis and mapping (using molecular markers and/or physically map) of new and/or novel FHB resistance in wheat and barley germplasms, including unique types of resistance, as well as new genes for type II resistance.
- Develop user-friendly markers and other techniques which accelerate gene deployment via MAS.
- Validate FHB resistance QTL/markers.
- Determine the durability and level of enhanced resistance when different sources and mechanisms of FHB resistance are combined into the host genotype.
- Develop BAC contigs and saturation maps for important QTL regions to facilitate MAS and map-based cloning efforts.
- Identify genes encoding effective anti-Fusarium proteins.
- Select mutants for enhanced resistance and enhanced susceptibility to help identify genes involved in FHB resistance.
- Characterize molecular mechanisms of host-pathogen interactions as it relates to the host to identify potential resistance genes. Identify potential candidate genes involved in FHB resistance, and characterize the function of a specific candidate gene.
- Determine signaling pathways that could be used to enhance host resistance or that are affected by Fusarium during infection.
| Summary of Funding | ||
| FY05 (2005-06)* | FY06 (2006-07) | |
| Number of Projects | 20 | 13 |
| Number of PIs | 17 | 12 |
| Total Award Amount | $940,304 | $538,964 |
| % Total Rec. Funding | 19% | 11% |
| Research Projects | FY05 | FY06 |
Research Reports/Publications
- Isolation and characterization of novel cDNA clones of acidic chitinases and beta-1,3-glucanases from wheat spikes infected by Fusarium graminearum (PDF)
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Preliminary BARC SSR Maps and Primer Pair Details.
The map information available in the links listed below is based on preliminary analyses. BARC primer pairs are developed by P. Cregan, Q. Song and associates. Meiotic map information was developed by J.R. Shi, R. Ward and associates. Deletion map information was developed by B. Gill, S. Singh and associates. Funding for this research is provided by USDA-ARS in conjunction with the U.S. Wheat and Barley Scab Initiative. All rights to publication of map position, etc. are reserved. Please contact R. Ward (wardri@msu.edu) prior to use of this information.
- SSR Markers Associated with DON in 6-Rowed Barley [ PDF | HTML ]