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SCN resistance for long-term, strategic SCN management

Though SCN-resistant soybean varieties frequently are available to minimize yield loss, producers are faced with limited options for rotation once virulent SCN populations develop in their fields. The widespread lack of genetic diversity in SCN resistance in soybean has significantly increased the prevalence of virulent SCN populations and reduced the effectiveness of current sources of resistance. Thus, we have two major research challenges that, when successfully achieved, will enable us to develop more efficient management practices for this pest in the future.

Project Objectives

  • Plant breeders will increase the genetic diversity of SCN resistance in commercially available SCN-resistant soybean cultivars and work with nematologists to determine the most effective rotation practices that preserve these sources.
  • Nematologists will complete the SCN genome (genetic blueprint of the nematode) assembly to facilitate the identification of nematode genes required for the adaptation to reproduce on resistant cultivars, use these as markers to monitor nematode population shifts in the field, and exploit this knowledge to help plant breeders identify novel sources of resistance.
  • Growers will be informed on effective rotation schemes designed to protect our resistant sources.

Funding Organization: An integrated approach to enhance durability of SCN resistance for long-term, strategic SCN management

Duration: 08/31/2016

Award Amount: $593,260.00