Page Banner

United States Department of Agriculture

Agricultural Research Service

Research Project: IMPROVEMENT OF HARD RED SPRING AND DURUM WHEAT FOR DISEASE RESISTANCE AND QUALITY USING GENETICS AND GENOMICS Title: Alien Introgression for FHB Resistance in Wheat - Challenges and Strategies

Authors
item Cai, X - NORTH DAKOTA STATE UNIV.
item Xu, Steven
item Oliver, Rebekah
item Zhang, Q - NORTH DAKOTA STATE UNIV.
item Stack, R - NORTH DAKOTA STATE UNIV.
item Zhong, S - NORTH DAKOTA STATE UNI
item Friesen, Timothy
item Halley, S - NORTH DAKOTA STATE UNIV.
item Elias, E - NORTH DAKOTA STATE UNIV

Submitted to: International Wheat Conference Proceedings
Publication Type: Proceedings
Publication Acceptance Date: July 15, 2008
Publication Date: August 24, 2008
Citation: Cai, X., Xu, S.S., Oliver, R.E., Zhang, Q., Stack, R.W., Zhong, S., Friesen, T.L., Halley, S., Elias, E.M. 2008. Alien introgression for FHB resistance in wheat - Challenges and strategies. In: R. Appels, R. Eastwood, E. Lagudah, P. Langridge, M. Mackay, L. McIntye, and P. Sharp (Eds.) Proc. 11th Wheat Genet. Symp., vol. 3. Sydney University Press, Sydney, Australia. Pp 716-718.

Technical Abstract: Over one thousand accessions of wheat relatives at different ploidy levels and wheat-alien species derivatives with varied chromosome constitutions were evaluated for Fusarium head blight (FHB) resistance. FHB resistance identified from the relatives and derivatives were introgressed into adapted bread and durum wheat backgrounds using several strategies. A number of resistant introgression lines that contain minimal alien chromatin and do not have obvious linkage drag were developed. Some of the introgression lines exhibited resistance to other fungal diseases in addition to FHB. The biggest challenges of alien introgression for FHB resistance are linkage drag associated with alien chromatin and the epistatic interactions of alien resistance genes with genetic backgrounds. Thus, efficient manipulation of alien chromatin and selection of proper recipient genotypes play a central role in the success of alien introgression for FHB resistance.

Last Modified: 10/21/2014
Footer Content Back to Top of Page