RAPD Trouble!!!

[Eitan Rubin]

> Roland Koelliker wrote:
...
> stop to work. I tried everything (new polymerase, new buffer, mgcl, dntp,
> and so on) but still I do not get the same nice results as before. Since it

You say "I tried everything", but I don't see ordering new primers in there. Primers that 
were thawed too many times, or even kept in -20 too long (so rumors say) are degrading, 
which with RAPD would mean stop working. I have personal epxeriance with 20bp primers 
going unspecific on me, and heard of someone who ran a sample of the primers on a 
sequencing gel and got a nice ladder, which wasn't there with the new primers.
  Eitan Rubin.

>
> Thank your help
>
> Roland
>
> Roland Koelliker
> Swiss Fed Inst Technol
> Plant Sciences
> ETH-Zentrum, LFW-C47
> CH-8092 Zurich
> Tel ++41-1-632 4890
> > Fax ++41-1-632 1153
> > e-mail: koelliker at ipw.agrl.ethz.ch