Caption: Nematodes attack a soybean root in the laboratory of Andrew Bent, in the department of plant pathology at the University of Wisconsin–Madison. Roots and nematodes were dyed red during experiments to explore how multiple copies of a three-gene structure allow soybeans to resist soybean cyst nematodes, the most devastating disease of soybeans. The two thick lines are younger nematodes, the two sausage shapes are older nematodes.
Credit: David Cook, University of Wisconsin–Madison
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