# HG changeset patch # User dannon # Date 1333006331 14400 # Node ID 4f3fe44edb3f6a0821e86569f169c2a775faabfb Initial upload. Still needs tests. diff -r 000000000000 -r 4f3fe44edb3f metaphlan.xml --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/metaphlan.xml Thu Mar 29 03:32:11 2012 -0400 @@ -0,0 +1,121 @@ + + +metaphlan +blast + + Metagenomic Phylogenetic Analysis + + metaphlan.py + #if str($source.type) == "fasta": + ${source.fasta_input} + #else: + ${source.blast_input} + #end if + ${metaphlan_out} + --nproc 4 + #if str($source.type) == "fasta": + --blastout metagenome.outfmt6.txt + --evalue ${source.evalue} + #end if + --lib_dir ${GALAXY_DATA_INDEX_DIR}/shared/metaphlan + --min_cu_len ${min_cu_len} + --min_nreads ${min_nreads} + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + source['type'] == "fasta" + + + + + + +**What it does** +MetaPhlAn is a computational tool for profiling the composition of microbial communities from metagenomic shotgun sequencing data. MetaPhlAn relies on unique clade-specific marker genes identified from reference genomes, allowing orders of magnitude speedups and unambiguous taxonomic assignments. + +MetaPhlAn main features are: + +More than 100x computational speedup compared to Blast-based approaches or other available methods with species level resolution +Higher accuracy in estimating the true composition of microbial communities in terms of organismal relative abundance +Unambiguous read-to-taxa assignments as conserved inter-clade sequences are removed from the reference sequence data + +--------- + +**Inputs** + +The input file can be a multi-fasta file containing metagenomic reads OR a NCBI BLAST output file (-outfmt 6 format) of the metagenomic read fasta file against the metaflan database. + +**outputs** + +The output is a tab-separated output file of the predicted taxon relative abundances. +If the input is a multi-fasta file then the output from the BLAST operation is also provided as an additional output. + +--------- + +**Settings**:: + + --tax_lev TAXONOMIC_LEVEL + The taxonomic level for the relative abundance + output: + 'a' : all taxonomic levels + 'k' : kingdoms (Bacteria and Archaea) only + 'p' : phyla only + 'c' : classes only + 'o' : orders only + 'f' : families only + 'g' : genera only + 's' : species only + [default 'a'] + --evalue evalue threshold for the blasting + [default 1e-6] + --min_cu_len minimum total nucleotide lenght for the unique + markers for estimating the abundance without + considering children clade abundances + [default 10000] + --min_nreads minimum total reads assigned to a clade for + estimating the abundance without considering + children clade abundances + [default 5] + +----- + +**Citation** + +If you find MetaPhlAn useful in your research, please cite our paper: +Nicola Segata, Levi Waldron, Annalisa Ballarini, Vagheesh Narasimhan, Olivier Jousson, Curtis Huttenhower. +"Fast and accurate metagenomic profiling of microbial community composition using unique clade-specific marker genes" +***in review*** + + + +