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ARS Home » Plains Area » Fargo, North Dakota » Edward T. Schafer Agricultural Research Center » Cereal Crops Research » Research » Publications at this Location » Publication #227305
Title: Alien Introgression for FHB Resistance in Wheat - Challenges and Strategies

Author
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: 7/15/2008
Publication Date: 8/24/2008
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.

Interpretive Summary:

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.