Researchers have discovered a new and unexpected way to prevent soybean cyst nematode from attacking soybeans. The loss of function of the GmSNAP02 gene in resistant soybean varieties like PI 90763 and PI 437654 thwarts soybean cyst nematode's ability to attack the soybean plant.
Novel discovery could fortify defenses
Nematode development on Peking, PI 90763 and PI 437654 soybean lines at five days post-inoculation. A good copy of the SNAP02 gene is present in the Peking line. White arrowheads denote swollen parasitic juvenile nematodes in Peking, indicative of successful feeding site establishment and development. A bad copy of the SNAP02 gene in PI 90763 and PI 437654 prevents those nematodes from feeding and reproducing.
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Due to the significant impacts of drought on forage production in 2026, forage supplies may be tight this winter.
