Saccharomyces paradoxus genome sequence downloaded 28 Nov 2003 from 
http://www.broad.mit.edu/ftp/pub/annotation/fungi/comp_yeasts/S1a.Assembly/Spar_contigs.fasta
and
http://www.broad.mit.edu/ftp/pub/annotation/fungi/comp_yeasts/S1b.ORFs/Spar_extended.fasta.gz