Exons: Relevant bits of information for using the MUSC Shared Resource, the BioMolecular Computing Resource (BCR). Exon_22 Running the Phylogeny Inference Package programs PHYLIP at MUSC. 1) The complete set of PHYLIP programs is available for your use. The programs are available without special software. Any telnet session to any research workstation will give you access.Running the programs is a matter of preparing the input files and then typing the program name. However, what follows is specialized for molecular sequence data rather that character analysis. 2) PHYLIP does NOT create multiple sequence alignments but the programs REQUIRE that you supply such an alignment. 3) PHYLIP formatted multiple sequence alignments may be produced most conveniently from appropriate selection of output parameters within the CLUSTALW program. In addition, programs such as PAUP and MACCLADE can read GCG MSF files and output PHYLIP format. Typing "readseq" from the MUSC UNIX command line, starts a file inter-conversion program which can read multiple formats and write multiple formats including PHYLIP. 4) Once you have your PHYLIP format multiple alignment, type the following command: cp my_mult_align.phylip infile This uses UNIX copy ("cp") to copy the contents to a file named infile. The name "infile" is the dummy name which most PHYLIP programs automatically look to for input. Keep track of what file you currently have copied to the infile! 5) At his point typing say "dnadist" will start the DNA DISTANCE program which will in turn read the contents of the current infile and open a UNIX menu interaction BOX where you are asked to supply pertenant information. When you have the run customized you type the letter "y" for yes and the program executes. 6) The results of the current run are written to another dummy file called "outfile". In some cases, results also go to a dummy file called "treefile" or even "outtree". These are all ASCII files and can be viewed immediately. 7) Its a good idea to copy the generic outfile, treefile etc to specific informative file names. Remember that in UNIX white space is significant. cp outfile my_mult_align.dnadistout 8) The treefile output can be printed with the elegant drawgram and drawtree programs. In both cases, drawtree and drawgram will look in your local directory for a font file. They won't find it and will prompt you for the font file location. When that happens type this: /usr/common/bcr/font1 and the programs will proceed. Typically, I select Laserwriter and opt not to view the results on-screen. Drawtree and Drawgram write to the generic file name called "plotfile". This ascii postscript file may be transferred to a PC for printing (eg CorellDraw or DROP PS) or viewing (GhostScript) or viewed on the SGI UNIX system with "xpsview".