DNA Extraction Protocols for Campanulaceae

Tue Feb 18 09:51:17 CST 1997

Can anyone suggest an improvement to the standard
Doyle & Doyle (1987) protocol for the removal of
polysaccharides. The Campanulaceae seem to be
particularly bedevilled by these and although I
have successfully extracted and amplified good
DNA from about two dozen genera, the whole procedure
is time-consuming and decidedly unpredictable.
I have tried precipitation with 2.5M NaCl in addition
to other protocols such as Dellaporta (which
involves chloroform/phenol extraction) with only
marginal improvement.I'm still left with a
gelatinous mass (or mess !).

Bill Eddie


William M.M.Eddie
Institute of Cell and Molecular Biology
University of Edinburgh
Daniel Rutherford Building
Mayfield Road
Edinburgh EH9 3JH
Scotland, UK
email: weddie at srv0.bio.ed.ac.uk
Tel. 0131 650 5327
FAX. 0131 650 5392

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