Brent S. Hulke, Qing-Ming Gao, Michael E. Foley Abstract: One of the primary goals for the oilseed sunflower (Helianthus annuus L.) industry is to provide novel oil products for human consumption. One oil profile of particular interest is high oleic and low saturated fat, because it combines high oxidative stability of the oil with a reduction […]
Lili Qi, Zahirul Talukder, Brent Hulke, Michael Foley Abstract: Downy mildew, which is caused by fungus Plasmopara halstedii (Farl.) Berlese & de Toni, is one of the most important diseases that affect sunflower production globally. Two downy mildew resistance genes, PlArg and Pl8, were discovered in the late 1980s. Over two decades, PlArg is still
Jarrad Prasifka, Brent Hulke Abstract: The banded sunflower moth, Cochylis hospes Walsingham (Lepidoptera: Tortricidae), is a significant seed-feeding pest of sunflowers in North America. Though some wild Helianthus spp., interspecific crosses, and H. annuus cultivars (that precede hybrid sunflower breeding) have low susceptibility to banded sunflower moth, no apparent effort has been made to evaluate
Le Dehaan, David Van Tassel, Jim Anderson, Sean Asselin, Greg Baute, Doug Cattani, Steven Culman, Kevin Dorn, Brent Hulke, Michael Kantar, Steven Larson, David Marks, Allison Miller, Jesse Poland, Damian Ravetta, Emily Rude, Matthew Ryan, Donald Wyse, Xiaofei Zhang Abstract: In recent decades, in the interest of diversifying the global food system, improving human nutrition,
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Brent Hulke, Christopher Grassa, John Bowers, John Burke, Lili Qi, Zahirul Talukder, Loren Rieseberg Abstract: Dense genetic maps are critical tools for plant breeders and geneticists. While many maps have been developed for sunflower in the last few decades, most have been based on low-throughput technologies and include markers numbers in the hundreds. However, two
Brent Hulke, Thomas Gulya Abstract: The most significant disease threat to sunflower production in most of the world is Sclerotinia head rot (HR), caused by the necrotrophic pathogen Sclerotinia sclerotiorum (Lib.) de Bary. Resistance to Sclerotinia is available in some inbred lines, but no line or hybrid is immune to it and all resistance is
Lili Qi, Guojia Ma, Yunming Long, Li Gong, Brent Hulke, Sam Markell Abstract: Rust (caused by Puccinia helianthi Schwein.) is a major disease of sunflower worldwide. Due to the frequent evolution of new pathogen races, the disease is a recurring threat to sunflower production especially in North America, Argentina, and Australia. The inbred line MC29
Lili Qi, Li Gong, Sam Markell, Gerald Seiler, Thomas Gulya Jr., Brent Hulke Abstract: Two confection sunflower (Helianthus annuus L.) germplasm lines, HA-R10 (Reg. No.xxx, PI670043) and HA-R11 (Reg. No.xxx, PI670044) were developed by the USDA-ARS Sunflower and Plant Biology Research Unit in collaboration with the North Dakota Agricultural Experiment Station and released December, 2013.
Zahirul Talukder, Li Gong, Brent Hulke, Venkatramana Pegadaraju, Qijian Song, Quentin Schultz, Lili Qi Abstract: A high-resolution genetic map of sunflower was constructed by integrating SNP data from three F2 mapping populations (HA 89/ RHA 464, B-line/ RHA 464, and CR 29/ RHA 468). The consensus map spanned a total length of 1443.84 cM, and
Brent S. Hulke, Larry W. Kleingartner Abstract: Sunflower (Helianthus annuus L.) is a relatively new crop to North America, with production beginning in earnest in the 1970s in the United States. There have been many challenges to production, including agronomic issues such as seed placement and herbicide systems adequate for weed control, disease issues caused by
