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Localization of Aa-eng-1 and Aa-pel-1 transcripts in the esophageal gland cells of A. avenae by in situ hybridisation. Nematode sections were hybridized with antisense (A) and sense (B) Aa-eng-1 digoxigenin-labeled cDNA probes. Hybridisation was also carried out with digoxigenin-labeled antisense (C) and sense (D) Aa-pel-1 cDNA probes. G, esophageal glands; S, stylet; M, metacorpus. The bar indicates a length of 20 μm.
