367-43 Inheritance of Wheat Streak Mosaic Virus Resistance in KS03HW12.

Poster Number 411

See more from this Division: C01 Crop Breeding & Genetics
See more from this Session: General Crop Breeding and Genetics: II

Wednesday, November 6, 2013
Tampa Convention Center, East Exhibit Hall

Guorong Zhang, Department of Agronomy, Kansas State University, Manhattan, KS and Dallas Seifers, Kansas State University, Hays, KS
Abstract:
Wheat streak mosaic (WSM), caused by Wheat streak mosaic virus (WSMV), is a destructive viral disease in wheat (Triticum aestivum L.). Host resistance is a primary and effective way to control the disease. KS03HW12 is a newly discovered resistance source. The objective of this study is to determine the inheritance of WSMV resistance in KS03HW12. KS03HW12 was crossed with susceptible parents KS03HW15 and KS04HW87. Parents, F1 and F2 were evaluated for WSMV reaction at 180C in the growth chamber after artificial inoculation with Sydney-81. F2 derived F3 progenies were further evaluated for WSMV reaction to confirm the F2 segregation ratio. Our results showed that the WSMV resistance in KS03HW12 is controlled by two dominant genes with epistasis.

See more from this Division: C01 Crop Breeding & Genetics
See more from this Session: General Crop Breeding and Genetics: II