Merge two large overlapping nucleic acid sequences emboss megamerger -asequence $input1 -bsequence $input2 -outseq $out_file1 -outfile $out_file2 -wordsize $wordsize -prefer $prefer -osformat3 $out_format1 -auto Sequence 1 Sequence 2 Word size Prefer first sequence when mismatches occur No Yes Output Sequence File Format FASTA (m) ACeDB (m) ASN.1 (m) Clustal (m) CODATA (m) EMBL (m) Fitch (m) Wisconsin Package GCG 9.x and 10.x (s) GENBANK (m) GFF (m) Hennig86 (m) Intelligenetics (m) Jackknifer (m) Jackknifernon (m) Mega (m) Meganon (m) Wisconsin Package GCG's MSF (m) NBRF (PIR) (m) NCBI style FASTA (m) Nexus/PAUP (m) Nexusnon/PAUPnon (m) PHYLIP interleaved (m) PHYLIP non-interleaved (m) SELEX (m) Staden (s) DNA strider (m) SwisProt entry (m) Plain sequence (s) Treecon (m) You can view the original documentation here_. .. _here: http://emboss.sourceforge.net/apps/release/5.0/emboss/apps/megamerger.html