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use strict; use Bio::SeqIO; use Bio::Seq; my %seqs; my @files = qw(file1 file2); for my $file ( @files ) { my $in = Bio::SeqIO->new(-format => 'fasta', -file => $file); while( my $seq = $in->next_seq ) { $seqs{$seq->display_id} .= $seq->seq; # append the seqdata } } my $out = Bio::SeqIO->new(-format => 'fasta', -file => '>newfile.fa'); while( my ($seqname,$seqstr) = each %seqs ) { my $seq = Bio::Seq->new(-id => $seqname, -seq => $seqstr); $out->write_seq($seq); }
Of course if you wanted to have sequence data in another file format you just have to change the 'fasta' to something else like 'genbank', 'swiss', 'embl', etc...

In reply to Re: how to merge the files of DNA sequences? by stajich
in thread how to merge the files of DNA sequences? by newperler

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