Abstract: Genetic Control of Stagonospora Nodorum Blotch In the AGS2000 x NC-Neuse Recombinant Inbred Population. (ASA, CSSA and SSSA Annual Meetings (San Antonio, TX

See more from this Division: C01 Crop Breeding & Genetics
See more from this Session: Plant Breeding and Genetics Graduate Poster Competition

Tuesday, October 18, 2011

Henry Gonzalez Convention Center, Hall C, Street Level

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Peter V. Maloney¹, Jeanette Lyerly², Rene Navarro², Gina Brown-Guedira³, David Marshall⁴ and J. Paul Murphy⁵, (1)North Carolina State University, Raleigh, NC
(2)Crop Science, North Carolina State University, Raleigh, NC
(3)North Carolina State University, USDA-ARS, Raleigh, NC
(4)USDA-ARS, Raleigh, NC
(5)Box 7629, North Carolina State University, Raleigh, NC

Presentations

pmASA2011.pdf (2.5 MB)

Stagonospora nodorum Blotch (SNB), caused by Stagonospora nodorum, infests North Carolina wheat fields annually. Severe epidemics of SNB can result in substantial reductions in grain yield, test weight and end-use quality. Resistance to SNB is quantitatively inherited and phenotyping is labor intensive. The North Carolina cultivar NC-Neuse has consistently exhibited moderate levels of resistance to SNB and the cultivar AGS 2000 has consistently exhibited susceptibility to SNB. A recombinant inbred population consisting of 177 F_5:6 lines from the cross of NC-Neuse x AGS 2000 was genotyped using DArT and SSR markers, and phenotyped at six field locations in the 2010-2011 field season for SNB reaction and other agronomic traits. An update of pertinent results will be presented.

221-16 Genetic Control of Stagonospora Nodorum Blotch In the AGS2000 x NC-Neuse Recombinant Inbred Population.