intron splice-junctions software

[Van Geldre Els]

Dear all,
  
  First of all I would like to thank you for all previous answers and
  suggestions to my questions. Secondly, I would like to ask you the
  following. Does someone know wether there exists (and where I can find
  it) a program that is capable to find splice junctions in a given gDNA
  sequence ? I have some PCR products derived from gDNA of plants (about
  1kb). I would like to derive the protein sequence from these DNA
  sequences, but only the exons without the introns. I found such a
  program specific for Arabidopsis, but I wonder wether there exists 
something
  more general for other plants.
  
  Thank you for answering,
  Els