Settings: Min. seq. for flank pos.:55% Max. contig. nonconserved pos.:4 Min. block length:5 Gaps in final blocks:half
After alignment, ambiguous regions (i.e. containing gaps and/or poorly aligned) were removed with Gblocks (v0.91b) using the following parameters:
-minimum length of a block after gap cleaning: 5
-positions with a gap in less than 50% of the sequences were selected in the final alignment if they were within an appropriate block
-all segments with contiguous nonconserved positions bigger than 4 were rejected
-minimum number of sequences for a flank position: 55%
Please cite:
Dereeper A., Audic S., Claverie J.M., Blanc G. BLAST-EXPLORER helps you building datasets for phylogenetic analysis. BMC Evol Biol. 2010 Jan 12;10:8. (PubMed)
Dereeper A.*, Guignon V.*, Blanc G., Audic S., Buffet S., Chevenet F., Dufayard J.F., Guindon S., Lefort V., Lescot M., Claverie J.M., Gascuel O. Phylogeny.fr: robust phylogenetic analysis for the non-specialist. Nucleic Acids Res. 2008 Jul 1;36(Web Server issue):W465-9. Epub 2008 Apr 19. (PubMed) *: joint first authors
Edgar RC. MUSCLE: multiple sequence alignment with high accuracy and high throughput. Nucleic Acids Res. 2004, Mar 19;32(5):1792-7. (PubMed)
Castresana J. Selection of conserved blocks from multiple alignments for their use in phylogenetic analysis. Mol Biol Evol. 2000, Apr;17(4):540-52. (PubMed)