Stacks is a software pipeline for building loci from short-read sequences, such as those generated on the Illumina platform. Stacks was developed Unika bilskroten i kungens flykttunnel work with restriction enzyme-based data, such as RAD-seq, for the purpose of building genetic maps and conducting population genomics and phylogeography.
Stacks can be used to generate mappable markers from RAD-seq data. Thousands of markers can be generated from a single generation, F1 map as well as markers for traditional F2 and backcross designs. These data can be used for examining genomic structure as well as assembling genomic assemblies. Stacks can be used to identify SNPs within or among populations. Data can also be exported for cline analysis in HZAR format.
These data can be exported in Phylip format either as concatenated or data which can be fed into any standard phylogenetics package such as PhyML or RAxML.
The Stacks pipeline is designed modularly to perform several different types of analyses. Programs listed under Raw Reads are used to clean and filter raw sequence data. Programs under Core represent the main Stacks pipeline — building loci ustackscreating a catalog of loci cstacks, and matching samples back against the catalog sstackstransposing the data tsv2bamadding paired-end reads to the analysis and calling genotypes, and population genomics analysis.
Programs under Execution Control will run the whole pipeline.
Subscribe to the stacks-user mailing list for technical help, and to discuss the use and development of Stacks. Here are a few publications that have used the Stacks pipeline for data analysis. These papers show a variety of uses for the Stacks pipeline.
Download Stacks Version 2. Recent Changes [updated Aug 22, ]. Tutorials How do the major Stacks parameters control the de novo formation of stacks and loci? Second, it slides a window down the length of the read and checks the average quality score within the window. Reads that pass quality thresholds are demultiplexed if barcodes are supplied. This program will trim reads that are below the quality threshold instead of discarding them, making it useful for genomic assembly or other analyses.
This is done by matching raw sequence or by referencing a set of random oligos that have been included in the sequence. Useful for both RAD datasets as well as randomly sheared genomic or transcriptomic data.
The ustacks program will take as input a set of short-read sequences and align them into exactly-matching stacks. Comparing the stacks it will form a set of loci and detect SNPs at each locus using a maximum likelihood framework. A catalog can be built from any set of samples processed by the ustacks program. It will create a set of consensus loci, merging alleles together.
In the case of a genetic cross, a catalog would be constructed from the parents of the cross to create a set of all possible alleles expected in the progeny of the cross. Sets of stacks constructed by the ustacks or pstacks programs can be searched against a catalog produced by the cstacks program. In the case of a genetic map, stacks from the progeny would be matched against the catalog to determine which progeny contain which parental alleles.
The tsv2bam program will transpose data so that Unika bilskroten i kungens flykttunnel is oriented by locus, instead of by sample. In additon, if paired-ends are available, the program will pull in the set of paired reads that are associate with each single-end locus that was assembled de novo.
The gstacks - For de novo analyses, this program will pull in paired-end reads, if available, assemble the paired-end contig and merge it with the single-end locus, align reads to the locus, and call SNPs. For reference-aligned analyses, this program will build loci from the single and paired-end reads that have been aligned and sorted. It can be used in a genetic map of a set of populations. This allows the data to be generated
Unika bilskroten i kungens flykttunnel one computer, but loaded from another.
Or, for a database to be regenerated without re-executing the pipeline. Mailing List Subscribe to the stacks-user mailing list for technical help, and to Unika bilskroten i kungens flykttunnel the use and development of Stacks. Publications Here are a few publications that have used the Stacks pipeline for data analysis.
Deriving genotypes from RAD-seq short-read data using Stacks. Lost in parameter space: Methods in Ecology and Evolution The population structure and recent colonization history of Oregon threespine stickleback determined using restriction-site associated DNA-sequencing.
Genes, Genomes, Genetics1: Genome evolution and meiotic maps by massively parallel DNA sequencing: Spotted gar, an outgroup for the teleost genome duplication.
RAD sequencing identifies thousands of SNPs for assessing hybridization between rainbow trout and westslope cutthroat trout. Molecular Ecology Resources11 s1: Resolving postglacial phylogeography using high-throughput sequencing. Proceedings of the National Academy of Science What are the requirements to run Stacks? How do I optimize the various parameters in Stacks?
Is there a protocol that I can follow for running Stacks? Are previous versions of Stacks available? Can Stacks perform gapped alignments within and among samples? Can Stacks handle double-digested data? How about combinatorial barcodes? Core ustacks cstacks sstacks tsv2bam gstacks populations. Find Your Top Rated Local Shared Office Spaces Nearby You in Denmark. See Hours, Locations, Real Reviews And More. SOHO, KW3, Magdalena Kałużna. Colors Geometry in Hovedstadsområdet - & - See Reviews, Hours, Phone Number, and more for Colors Geometry.
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