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ARS Home » Pacific West Area » Pullman, Washington » Grain Legume Genetics Physiology Research » Research » Publications at this Location » Publication #305103
Title: QTL analysis for Fusarium root rot resistance in snap bean under greenhouse conditions

Author
item BELLO, MARCO - Former ARS Employee
item HAGERTY, C - Oregon State University
item MYERS, J - Oregon State University
item Porter, Lyndon
item Miklas, Phillip - Phil

Submitted to: Bean Improvement Cooperative Annual Report
Publication Type: Proceedings
Publication Acceptance Date: 2/11/2014
Publication Date: 3/1/2014
Citation: Bello, M.H., Hagerty, C.H., Myers, J.R., Porter, L., Miklas, P.N. 2014. QTL analysis for Fusarium root rot resistance in snap bean under greenhouse conditions. Bean Improvement Cooperative Annual Report. 57: 185-186.

Interpretive Summary: Fusarium root rot (FRR), caused by Fusarium solani f. sp. phaseoli (syn.F. phaseoli T. Aoki & O’Donnell, F. cuneirostrum O’Donnell & T. Aoki), is considered as one of the most economically important and widespread fungal diseases of common bean (1). Progress in breeding for FRR resistance has been hampered by the low efficiency of phenotypic selection. Hence, the development of fast and efficient screening methods and marker-assisted breeding tools for FFR resistance will help in transferring higher levels of resistance and shorten the time for commercial cultivar development. The objectives were to determine utility of greenhouse screening method for identification of QTL conditioning resistance to FRR in a snap bean recombinant inbred line (RIL) population using traits such as disease severity index and root and foliar biomass (dry weight), and to integrate the genomic regions associated to resistance onto the reference genome of common bean.

Technical Abstract: Fusarium root rot (FRR), caused by Fusarium solani f. sp. phaseoli (syn.F. phaseoli T. Aoki & O’Donnell, F. cuneirostrum O’Donnell & T. Aoki), is considered as one of the most economically important and widespread fungal diseases of common bean (1). Progress in breeding for FRR resistance has been hampered by the low efficiency of phenotypic selection. Hence, the development of fast and efficient screening methods and marker-assisted breeding tools for FFR resistance will help in transferring higher levels of resistance and shorten the time for commercial cultivar development. The objectives were to determine utility of greenhouse screening method for identification of QTL conditioning resistance to FRR in a snap bean recombinant inbred line (RIL) population using traits such as disease severity index and root and foliar biomass (dry weight), and to integrate the genomic regions associated to resistance onto the reference genome of common bean.