The ELynx Suite
Version: 0.1.0.
Reproducible evolution made easy.
The ELynx Suite is a Haskell library and a tool set for computational biology.
The goal of the ELynx Suite is reproducible research. Evolutionary sequences and
phylogenetic trees can be read, viewed, modified and simulated. Exact
specification of all options is necessary, and nothing is assumed about the data
(e.g., the type of the genetic code). The command line with all arguments is
consistently, and automatically logged. The work overhead in the beginning
usually pays off in the end.
The Elynx Suite consists of three library packages and two executables providing
a range of sub commands.
The library packages are:
- elynx-seq: Handle evolutionary sequences and multi sequence alignments.
- elynx-tree: Handle phylogenetic trees.
- elynx-tools: Tools for the provided executables.
The executables are:
- slynx: Analyze, modify, and simulate evolutionary sequences (FASTA format).
- tlynx: Analyze, modify, and simulate phylogenetic trees (Newick format).
ELynx is actively developed. We happily receive comments, ideas, feature
requests, and pull requests!
Installation
ELynx is written in Haskell and can be installed with Stack.
-
Install Stack with your package manager, or directly from the web
page.
curl -sSL https://get.haskellstack.org/ | sh
-
Clone the ELynx repository.
git clone clone https://github.com/dschrempf/elynx
-
Navigate to the newly created elynx folder and build the binaries.
This will take a while.
stack build
-
Run a binary from within the project directory. For example,
stack exec tlynx -- --help
-
If needed, install the binaries.
stack install
The binaries are installed into ~/.local/bin/ which has to be added to the
PATH environment variable. Then, they can be used directly.
SLynx
Handle evolutionary sequences.
slynx --help
ELynx Suite version 0.1.0. Developed by Dominik Schrempf. Compiled on January
30, 2020, at 09:18 am, UTC.
Usage: slynx [-v|--verbosity VALUE] [-o|--output-file-basename NAME] COMMAND
Analyze, and simulate multi sequence alignments.
Available options:
-h,--help Show this help text
-V,--version Show version
-v,--verbosity VALUE Be verbose; one of: Quiet Warning Info
Debug (default: Info)
-o,--output-file-basename NAME
Specify base name of output file
Available commands:
concatenate Concatenate sequences found in input files.
examine Examine sequences. If data is a multi sequence
alignment, additionally analyze columns.
filter-rows Filter rows (or sequences) found in input files.
filter-columns Filter columns of multi-sequence alignments.
simulate Simulate multi sequence alignments.
sub-sample Sub-sample columns from multi sequence alignments.
translate Translate from DNA to Protein or DNAX to ProteinX.
File formats:
- FASTA
Alphabet types:
- DNA (nucleotides)
- DNAX (nucleotides; including gaps)
- DNAI (nucleotides; including gaps, and IUPAC codes)
- Protein (amino acids)
- ProteinX (amino acids; including gaps)
- ProteinS (amino acids; including gaps, and translation stops)
- ProteinI (amino acids; including gaps, translation stops, and IUPAC codes)
The ELynx Suite
---------------
A Haskell library and a tool set for computational biology. The goal of the
ELynx Suite is reproducible research. Evolutionary sequences and phylogenetic
trees can be read, viewed, modified and simulated. Exact specification of all
options is necessary, and nothing is assumed about the data (e.g., the type of
code). The command line with all arguments is consistently, and automatically
logged.
slynx Analyze, modify, and simulate evolutionary sequences.
tlynx Analyze, modify, and simulate phylogenetic trees.
Get help for specific commands:
slynx examine --help
Concatenate
Concatenate multi sequence alignments.
slynx concatenate --help
Usage: slynx concatenate (-a|--alphabet NAME) INPUT-FILE
Concatenate sequences found in input files.
Available options:
-a,--alphabet NAME Specify alphabet type NAME
INPUT-FILE Read sequences from INPUT-FILE
-h,--help Show this help text
Examine
Examine sequence with slynx examine.
slynx examine --help
Usage: slynx examine (-a|--alphabet NAME) [INPUT-FILE] [--per-site]
Examine sequences. If data is a multi sequence alignment, additionally analyze
columns.
Available options:
-a,--alphabet NAME Specify alphabet type NAME
INPUT-FILE Read sequences from INPUT-FILE
--per-site Report per site summary statistics
-h,--help Show this help text
Filter
Filter sequences with filer-rows.
slynx filter-rows --help
Usage: slynx filter-rows (-a|--alphabet NAME) [INPUT-FILE]
[--longer-than LENGTH] [--shorter-than LENGTH]
[--standard-characters]
Filter rows (or sequences) found in input files.
Available options:
-a,--alphabet NAME Specify alphabet type NAME
INPUT-FILE Read sequences from INPUT-FILE
--longer-than LENGTH Only keep sequences longer than LENGTH
--shorter-than LENGTH Only keep sequences shorter than LENGTH
--standard-characters Only keep sequences containing at least one standard
(i.e., non-IUPAC) character
-h,--help Show this help text
Filter columns of multi sequence alignments with filter-columns.
slynx filter-columns --help
Usage: slynx filter-columns (-a|--alphabet NAME) [INPUT-FILE]
[--standard-chars DOUBLE]
Filter columns of multi-sequence alignments.
Available options:
-a,--alphabet NAME Specify alphabet type NAME
INPUT-FILE Read sequences from INPUT-FILE
--standard-chars DOUBLE Keep columns with a proportion standard (non-IUPAC)
characters larger than DOUBLE in [0,1]
-h,--help Show this help text
Simulate
Simulate sequences with slynx simulate.
slynx simulate --help
Usage: slynx simulate (-t|--tree-file Name) [-s|--substitution-model MODEL]
[-m|--mixture-model MODEL] [-e|--edm-file NAME]
[-p|--siteprofile-files NAMES]
[-w|--mixture-model-weights "[DOUBLE,DOUBLE,...]"]
[-g|--gamma-rate-heterogeneity "(NCAT,SHAPE)"]
(-l|--length NUMBER) [-S|--seed [INT]]
Simulate multi sequence alignments.
Available options:
-t,--tree-file Name Read trees from file NAME
-s,--substitution-model MODEL
Set the phylogenetic substitution model; available
models are shown below (mutually exclusive with -m
option)
-m,--mixture-model MODEL Set the phylogenetic mixture model; available models
are shown below (mutually exclusive with -s option)
-e,--edm-file NAME Empirical distribution model file NAME in Phylobayes
format
-p,--siteprofile-files NAMES
File names of site profiles in Phylobayes format
-w,--mixture-model-weights "[DOUBLE,DOUBLE,...]"
Weights of mixture model components
-g,--gamma-rate-heterogeneity "(NCAT,SHAPE)"
Number of gamma rate categories and shape parameter
-l,--length NUMBER Set alignment length to NUMBER
-S,--seed [INT] Seed for random number generator; list of 32 bit
integers with up to 256 elements (default: random)
-h,--help Show this help text
Substitution models:
-s "MODEL[PARAMETER,PARAMETER,...]{STATIONARY_DISTRIBUTION}"
Supported DNA models: JC, HKY.
For example,
-s HKY[KAPPA]{DOUBLE,DOUBLE,DOUBLE,DOUBLE}
Supported Protein models: Poisson, Poisson-Custom, LG, LG-Custom, WAG, WAG-Custom.
MODEL-Custom means that only the exchangeabilities of MODEL are used,
and a custom stationary distribution is provided.
For example,
-s LG-Custom{...}
Mixture models:
-m "MIXTURE(SUBSTITUTION_MODEL_1,SUBSTITUTION_MODEL_2)"
For example,
-m "MIXTURE(JC,HKY[6.0]{0.3,0.2,0.2,0.3})"
Mixture weights have to be provided with the -w option.
Special mixture models:
-m CXX
where XX is 10, 20, 30, 40, 50, or 60; CXX models, Quang et al., 2008.
-m "EDM(EXCHANGEABILITIES)"
Arbitrary empirical distribution mixture (EDM) models.
Stationary distributions have to be provided with the -e option.
For example,
LG exchangeabilities with stationary distributions given in FILE.
-m "EDM(LG-Custom)" -e FILE
For special mixture models, mixture weights are optional.
Sub-sample
Sub-sample columns from multi sequence alignments.
slynx sub-sample --help
Usage: slynx sub-sample (-a|--alphabet NAME) [INPUT-FILE]
(-n|--number-of-sites INT)
(-m|--number-of-alignments INT) [-S|--seed [INT]]
Sub-sample columns from multi sequence alignments.
Available options:
-a,--alphabet NAME Specify alphabet type NAME
INPUT-FILE Read sequences from INPUT-FILE
-n,--number-of-sites INT Number of sites randomly drawn with replacement
-m,--number-of-alignments INT
Number of multi sequence alignments to be created
-S,--seed [INT] Seed for random number generator; list of 32 bit
integers with up to 256 elements (default: random)
-h,--help Show this help text
Create a given number of multi sequence alignments, each of which contains a
given number of random sites drawn from the original multi sequence alignment.
Translate
Translate sequences.
slynx translate --help
Usage: slynx translate (-a|--alphabet NAME) [INPUT-FILE]
(-r|--reading-frame INT) (-u|--universal-code CODE)
Translate from DNA to Protein or DNAX to ProteinX.
Available options:
-a,--alphabet NAME Specify alphabet type NAME
INPUT-FILE Read sequences from INPUT-FILE
-r,--reading-frame INT Reading frame [0|1|2].
-u,--universal-code CODE universal code; one of: Standard,
VertebrateMitochondrial.
-h,--help Show this help text
TLynx
Handle phylogenetic trees in Newick format.
tlynx --help
ELynx Suite version 0.1.0. Developed by Dominik Schrempf. Compiled on January
30, 2020, at 09:18 am, UTC.
Usage: tlynx [-v|--verbosity VALUE] [-o|--output-file-basename NAME] COMMAND
Compare, examine, and simulate phylogenetic trees.
Available options:
-h,--help Show this help text
-V,--version Show version
-v,--verbosity VALUE Be verbose; one of: Quiet Warning Info
Debug (default: Info)
-o,--output-file-basename NAME
Specify base name of output file
Available commands:
distance Compute distances between many phylogenetic trees.
examine Compute summary statistics of phylogenetic trees.
simulate Simulate phylogenetic trees using birth and death
processes.
compare Compare two phylogenetic trees (compute distances and
branch-wise differences).
connect Connect two phylogenetic trees in all ways (possibly
honoring constraints).
shuffle Shuffle a phylogenetic tree (keep coalescent times,
but shuffle topology and leaves).
File formats:
- Newick
The ELynx Suite
---------------
A Haskell library and a tool set for computational biology. The goal of the
ELynx Suite is reproducible research. Evolutionary sequences and phylogenetic
trees can be read, viewed, modified and simulated. Exact specification of all
options is necessary, and nothing is assumed about the data (e.g., the type of
code). The command line with all arguments is consistently, and automatically
logged.
slynx Analyze, modify, and simulate evolutionary sequences.
tlynx Analyze, modify, and simulate phylogenetic trees.
Get help for specific commands:
slynx examine --help
Compare
Compute distances between phylogenetic trees.
tlynx compare --help
Usage: tlynx compare [-n|--normalize] [-b|--bipartitions] [-i|--newick-iqtree]
NAME
Compare two phylogenetic trees (compute distances and branch-wise
differences).
Available options:
-n,--normalize Normalize trees before comparison
-b,--bipartitions Print common and missing bipartitions
-i,--newick-iqtree Use IQ-TREE Newick format (internal node labels are
branch support values)
NAME Tree file
-h,--help Show this help text
Examine
Compute summary statistics of phylogenetic trees.
tlynx examine --help
Usage: tlynx examine [INPUT-FILE] [-i|--newick-iqtree]
Compute summary statistics of phylogenetic trees.
Available options:
INPUT-FILE Read trees from INPUT-FILE
-i,--newick-iqtree Use IQ-TREE Newick format (internal node labels are
branch support values)
-h,--help Show this help text
Simulate
Simulate phylogenetic trees using birth and death processes.
tlynx simulate --help
Usage: tlynx simulate [-t|--nTrees INT] [-n|--nLeaves INT] [-H|--height DOUBLE]
[-M|--condition-on-mrca] [-l|--lambda DOUBLE]
[-m|--mu DOUBLE] [-r|--rho DOUBLE] [-u|--sub-sample]
[-s|--summary-statistics] [-S|--seed [INT]]
Simulate phylogenetic trees using birth and death processes.
Available options:
-t,--nTrees INT Number of trees (default: 10)
-n,--nLeaves INT Number of leaves per tree (default: 5)
-H,--height DOUBLE Fix tree height (no default)
-M,--condition-on-mrca Do not condition on height of origin but on height of
MRCA
-l,--lambda DOUBLE Birth rate lambda (default: 1.0)
-m,--mu DOUBLE Death rate mu (default: 0.9)
-r,--rho DOUBLE Sampling probability rho (default: 1.0)
-u,--sub-sample Perform sub-sampling; see below.
-s,--summary-statistics Only output number of children for each branch
-S,--seed [INT] Seed for random number generator; list of 32 bit
integers with up to 256 elements (default: random)
-h,--help Show this help text
Height of Trees: if no tree height is given, the heights will be randomly drawn from the expected distribution given the number of leaves, the birth and the death rate.
Summary statistics only: only print (NumberOfExtantChildren BranchLength) pairs for each branch of each tree. The trees are separated by a newline character.
Sub-sampling: simulate one big tree with n'=round(n/rho), n'>=n, leaves, and randomly sample sub-trees with n leaves. Hence, with rho=1.0, the same tree is reported over and over again.
Gernhard, T. (2008). The conditioned reconstructed process. Journal of Theoretical Biology, 253(4), 769–778. http://doi.org/10.1016/j.jtbi.2008.04.005
ELynx
Documentation of the library can be found on Hackage:
