Poster # 510

Shuyu Liu ¹, Zhen Wang ^{1, 2}, Yahya Rauf ¹, Kyle Parker ^{1, 2}, Li Paetzold ¹, Qingwu Xue ¹, Jackie C. Rudd ¹, Amir M. H. Ibrahim ², Russell Sutton ², Jessica Rupp ³, Sunish Sehgal ⁴, Katherine Frels ⁵, Xiwen Cai ⁶, Gideon Marais ⁷, and Mary Guttieri ⁸
1. Texas A&M AgriLife Research and Extension Center, Amarillo, TX
2. Department of Soil and Crop Sciences, Texas A&M University, College Station, TX
3. Department of Plant Pathology, Kansas State University, Manhattan, KS
4. Agronomy, Horticulture & Plant Science, Brookings, SD
5. Dept. of Agronomy and Horticulture, University Of Nebraska–Lincoln, NE
6. USDA-ARS, Lincoln, NE
7. Plant Science, Fargo, ND
8. USDA-ARS, Manhattan, KS
Corresponding author: Shuyu Liu, Shuyu.Liu@ag.tamu.edu

Shuyu Liu

Several major Fusarium head blight (FHB) resistance genes, Fhb1, Fhb6 and Fhb7 have been identified and utilized in breeding programs. To improve FHB resistance in hard winter wheat (HWW) region, a coordinated project for introgressing these major genes into HWW adapted germplasm was funded by US Wheat and Barley Scab Initiative for 2 years. We have the first-year ongoing project cultured 2291 embryos from haploid plants, after vernalization, more than 700 seedlings were grown in the growth chamber to 3-5 tillers. A set of 707 plants were treated by colchicine at seedling stage then transplanted into big pot in the GH. So far 215 DHLs were harvested. We are expecting to harvest around 500 DHLs. For the 2^nd year, we have requested more than 500 F1 and BC1F1 seeds from the eight collaborators. With the experiences from last few years, we are targeting to develop more than 1000 DHLs in this round. All DHLs are available to all HWW collaborators to conduct FHB research in genetic and breeding.