|Kolmer, James - Jim|
Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 11/20/2006
Publication Date: 6/1/2007
Citation: Murphy, J.P., Navarro, R.A., Marshall, D.S., Cowger, C., Cox, T., Kolmer, J.A., Leath, S., Gaines, C.S. 2007. Registration of NC06BGTAG12, and NC06BGTAG13 Powdery Mildew Resistant Wheat Germplasm.. Journal of Plant Registrations. 1:75-77. Interpretive Summary: Two germplasm lines of common winter wheat were developed and released by the North Carolina Agricultural Research Service and the USDA-ARS in 2006. The germplasms contain novel resistance to powdery mildew of wheat (caused by the fungus Blumeria graminis f. sp. tritici), which causes significant losses throughout the winter wheat production region. The source of the new resistance genes is the wild wheat relative Triticum timopheevii subsp. armeniacum. Based on seedling tests, both germplasms may also carry genes for resistance to leaf rust (caused by the fungus Puccinia triticina) derived from T. timopheevii that have not yet been characterized.
Technical Abstract: Common winter wheat (Triticum aestivum L.) germplasm lines NC06BGTAG12 (Reg. no. GP-------, PI 642416), and NC06BGTAG13 (Reg. no. GP-------, PI 612417), were developed and released by the North Carolina Agricultural Research Service and the USDA-ARS in 2006. These germplasms were released because of their potential to broaden the genetic base of resistance to powdery mildew [caused by Blumeria graminis (DC.) E.O. Spear f. sp. tritici Em. Marchal] with resistance transferred from the AAGG genome T. timopheevii (Zhuk.) Zhuk. subsp. armeniacum (Jakubz.) van Slageren. Both germplasms have consistently displayed resistance to the powdery mildew fungus in field evaluations in North Carolina from 1999 through 2005.