doi: 10.1016/0003-2697(86)90489-6.
Isolation of DNA from fungal mycelia and sclerotia without use of density gradient ultracentrifugation
- PMID: 3010770
- DOI: 10.1016/0003-2697(86)90489-6
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Isolation of DNA from fungal mycelia and sclerotia without use of density gradient ultracentrifugation
Anal Biochem.
1986 Apr.
Abstract
A rapid method for extracting total DNA from Aspergillus flavus and Aspergillus parasiticus has been developed. The procedure can be completed in 2 h and yields 200 to 350 micrograms of DNA from 0.5 to 1.0 g wet wt of mycelia and 150 micrograms from 0.5 g of sclerotia. DNA samples had an OD260/OD280 of 1.6 to 1.8. Most of the DNA was at least 50 kb pairs in size and showed little degradation. DNA prepared by this method was used for restriction endonuclease digestion and Southern blotting. A DNA fragment containing the repeat unit of the ribosomal RNA genes of A. flavus has been identified.
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