Abstract
A method is described for the isolation of DNA from spruce and fir, starting with 3 to 5 apices (5 mg material). Apices are prepared manually from dormant buds harvested in summer and autumn, which are homogenized in 30 μl buffer containing 1% SDS. The DNA is extracted with phenol and precipitated with ethanol. Agarose gel electrophoresis and Southern hybridization show that its molecular length is ca. 30–40 kb and that it is readily digested with various restriction enzymes. The method is very fast, it does not need CsCl centrifugation and is therefore suited for the analysis of large numbers of individual trees. Moreover, the buds can be collected all over the year. The yield of the method is up to 30 μg of high molecular weight DNA, enough to do several digests and hybridizations.
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Kreike, J. Genetic analysis of forest tree populations: isolation of DNA from spruce and fir apices. Plant Mol Biol 14, 877–879 (1990). https://doi.org/10.1007/BF00016524
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DOI: https://doi.org/10.1007/BF00016524