Abstract
A nonradioactive labelling and detection method for plant genomic DNA analysis is compared to the radioactive method. The radioisotopes are replaced by a nucleotide, digoxigenin-11-dUTP, and the signal detection is accomplished by the enzymatic reaction of alkaline phosphatase, conjugated to anti-digoxigenin antibodies, with the chemiluminescent substrate AMPPD (3-(2′-spiroadamantane)-4-methoxy-4(3″ phosphorytoxy) phenyl-1, 2-dioxetane). The sensitivity of the radioactive and nonradioactive methods are directly compared using identical Southern blots subjected to the radioactive and nonradioactive detection. The advantages of this nonradioactive method are discussed.
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Neuhaus-Url, G., Neuhaus, G. The use of the nonradioactive digoxigenin chemiluminescent technology for plant genomic Southern blot hybridization: A comparison with radioactivity. Transgenic Research 2, 115–120 (1993). https://doi.org/10.1007/BF01969385
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DOI: https://doi.org/10.1007/BF01969385