Add workflow for producing the Nextclade dengue dataset

README.md

@@ -4,6 +4,7 @@ This repository contains two workflows for the analysis of dengue virus data:
 
 - [`ingest/`](./ingest) - Download data from GenBank, clean and curate it and upload it to S3
 - [`phylogenetic/`](./phylogenetic) - Make phylogenetic trees for nextstrain.org
+- [`nextclade/`](./nextclade) - Make Nextclade datasets for nextstrain/nextclade_data
 
 Each folder contains a README.md with more information.
 

nextclade/README.md

@@ -0,0 +1,50 @@
+# Nextclade
+
+Previously, all "official" Nextclade workflows lived in a [central GitHub repository](https://github.com/neherlab/nextclade_data_workflows).
+The new standard would be to include the Nextclade workflow within the pathogen repo.
+
+This workflow is used to create the Nextclade datasets for this pathogen.
+All official Nextclade datasets are available at https://github.com/nextstrain/nextclade_data.
+
+## Workflow Usage
+
+The workflow can be run from the top level pathogen repo directory:
+```
+nextstrain build nextclade
+```
+
+Alternatively, the workflow can also be run from within the nextclade directory:
+```
+cd nextclade
+nextstrain build .
+```
+
+This produces the default outputs of the nextclade workflow:
+
+- nextclade_dataset(s) = datasets/<build_name>/*
+
+## Defaults
+
+The defaults directory contains all of the default configurations for the Nextclade workflow.
+
+[defaults/config.yaml](defaults/config.yaml) contains all of the default configuration parameters
+used for the Nextclade workflow. Use Snakemake's `--configfile`/`--config`
+options to override these default values.
+
+## Snakefile and rules
+
+The rules directory contains separate Snakefiles (`*.smk`) as modules of the core Nextclade workflow.
+The modules of the workflow are in separate files to keep the main nextclade [Snakefile](Snakefile) succinct and organized.
+
+The `workdir` is hardcoded to be the nextclade directory so all filepaths for
+inputs/outputs should be relative to the nextclade directory.
+
+Modules are all [included](https://snakemake.readthedocs.io/en/stable/snakefiles/modularization.html#includes)
+in the main Snakefile in the order that they are expected to run.
+
+## Build configs
+
+The build-configs directory contains custom configs and rules that override and/or
+extend the default workflow.
+
+- [test-dataset](build-configs/test-dataset/) - build to test new Nextclade dataset

nextclade/Snakefile

@@ -0,0 +1,34 @@
+configfile: "config/config_dengue.yaml"
+
+serotypes = ['all', 'denv1', 'denv2', 'denv3', 'denv4']
+genes = ['genome']
+
+wildcard_constraints:
+    serotype = "|".join(serotypes),
+    gene = "|".join(genes)
+
+rule all:
+    input:
+        auspice_json = expand("auspice/dengue_{serotype}_{gene}.json", serotype=serotypes, gene=genes),
+        nextclade_dataset = expand("datasets/{serotype}/tree.json", serotype=serotypes),
+        test_dataset = expand("test_output/{serotype}", serotype=serotypes),
+
+include: "rules/prepare_sequences.smk"
+include: "rules/construct_phylogeny.smk"
+include: "rules/annotate_phylogeny.smk"
+include: "rules/export.smk"
+include: "rules/assemble_dataset.smk"
+
+# Include custom rules defined in the config.
+if "custom_rules" in config:
+    for rule_file in config["custom_rules"]:
+
+        include: rule_file
+
+rule clean:
+    """Removing directories: {params}"""
+    params:
+        "results ",
+        "auspice"
+    shell:
+        "rm -rfv {params}"

nextclade/config/config_dengue.yaml

@@ -0,0 +1,39 @@
+# Sequences must be FASTA and metadata must be TSV
+# Both files must be zstd compressed
+# Both files must have a {serotype} expandable field to be replaced by all, denv1-denv4
+sequences_url: "https://data.nextstrain.org/files/workflows/dengue/sequences_{serotype}.fasta.zst"
+metadata_url: "https://data.nextstrain.org/files/workflows/dengue/metadata_{serotype}.tsv.zst"
+
+strain_id_field: "genbank_accession"
+display_strain_field: "strain"
+
+filter:
+  exclude: "../phylogenetic/config/exclude.txt"
+  include: "../phylogenetic/config/include_{serotype}.txt"
+  group_by: "year region"
+  min_length:
+    genome: 5000
+    E: 1000
+  sequences_per_group:
+    all: '10'
+    denv1: '36'
+    denv2: '36'
+    denv3: '36'
+    denv4: '36'
+
+traits:
+  sampling_bias_correction: '3'
+  traits_columns:
+    all: 'region serotype_genbank genotype_nextclade'
+    denv1: 'country region serotype_genbank genotype_nextclade'
+    denv2: 'country region serotype_genbank genotype_nextclade'
+    denv3: 'country region serotype_genbank genotype_nextclade'
+    denv4: 'country region serotype_genbank genotype_nextclade'
+
+clades:
+  clade_definitions:
+    all: '../phylogenetic/config/clades_serotypes.tsv'
+    denv1: '../phylogenetic/config/clades_genotypes.tsv'
+    denv2: '../phylogenetic/config/clades_genotypes.tsv'
+    denv3: '../phylogenetic/config/clades_genotypes.tsv'
+    denv4: '../phylogenetic/config/clades_genotypes.tsv'

nextclade/datasets/all/CHANGELOG.md

@@ -0,0 +1,5 @@
+## Unreleased
+
+Initial release for Nextclade v3!
+
+Read more about Nextclade datasets in the documentation: https://docs.nextstrain.org/projects/nextclade/en/stable/user/datasets.html

nextclade/datasets/all/README.md

@@ -0,0 +1,7 @@
+# Nextclade dataset for "Dengue Virus"
+
+## Dataset attributes
+
+Nextclade dataset
+
+Read more about Nextclade datasets in Nextclade documentation: https://docs.nextstrain.org/projects/nextclade/en/stable/user/datasets.html

nextclade/datasets/all/genome_annotation.gff3

@@ -0,0 +1,14 @@
+##gff-version 3
+##sequence-region NC_002640.1 1 10649
+NC_002640.1	feature	gene	102	440	.	+	.	codon_start=1;gene=C;gene_name=C;
+NC_002640.1	feature	gene	441	713	.	+	.	codon_start=1;gene=pr;gene_name=pr;
+NC_002640.1	feature	gene	441	938	.	+	.	codon_start=1;gene=M;gene_name=M;
+NC_002640.1	feature	gene	939	2423	.	+	.	codon_start=1;gene=E;gene_name=E;
+NC_002640.1	feature	gene	2424	3479	.	+	.	codon_start=1;gene=NS1;gene_name=NS1;
+NC_002640.1	feature	gene	3480	4133	.	+	.	codon_start=1;gene=NS2A;gene_name=NS2A;
+NC_002640.1	feature	gene	4134	4523	.	+	.	codon_start=1;gene=NS2B;gene_name=NS2B;
+NC_002640.1	feature	gene	4524	6377	.	+	.	codon_start=1;gene=NS3;gene_name=NS3;
+NC_002640.1	feature	gene	6378	6758	.	+	.	codon_start=1;gene=NS4A;gene_name=NS4A;
+NC_002640.1	feature	gene	6759	6827	.	+	.	codon_start=1;gene=2K;gene_name=2K;
+NC_002640.1	feature	gene	6828	7562	.	+	.	codon_start=1;gene=NS4B;gene_name=NS4B;
+NC_002640.1	feature	gene	7563	10262	.	+	.	codon_start=1;gene=NS5;gene_name=NS5;

nextclade/datasets/all/pathogen.json

@@ -0,0 +1,67 @@
+{
+  "alignmentParams": {
+    "minSeedCover": 0.01,
+    "minLength": 1000
+  },
+  "attributes": {
+    "name": "Dengue virus All serotypes",
+    "reference accession": "NC_002640",
+    "reference name": "dengue virus type 4"
+  },
+  "compatibility": {
+    "cli": "3.0.0-alpha.0",
+    "web": "3.0.0-alpha.0"
+  },
+  "deprecated": false,
+  "enabled": true,
+  "experimental": true,
+  "files": {
+    "changelog": "CHANGELOG.md",
+    "examples": "sequences.fasta",
+    "genomeAnnotation": "genome_annotation.gff3",
+    "pathogenJson": "pathogen.json",
+    "readme": "README.md",
+    "reference": "reference.fasta",
+    "treeJson": "tree.json"
+  },
+  "meta": {
+    "bugs": "https://github.com/nextstrain/nextclade_data/issues",
+    "source code": "https://github.com/nextstrain/nextclade_data"
+  },
+  "qc": {
+    "frameShifts": {
+      "enabled": false
+    },
+    "missingData": {
+      "enabled": false,
+      "missingDataThreshold": 2700,
+      "scoreBias": 300
+    },
+    "mixedSites": {
+      "enabled": false,
+      "mixedSitesThreshold": 10
+    },
+    "privateMutations": {
+      "cutoff": 24,
+      "enabled": false,
+      "typical": 8,
+      "weightLabeledSubstitutions": 2,
+      "weightReversionSubstitutions": 1,
+      "weightUnlabeledSubstitutions": 1
+    },
+    "snpClusters": {
+      "clusterCutOff": 5,
+      "enabled": false,
+      "scoreWeight": 50,
+      "windowSize": 100
+    },
+    "stopCodons": {
+      "enabled": false
+    }
+  },
+  "schemaVersion": "3.0.0",
+  "version": {
+    "tag": "unreleased"
+  },
+  "defaultCds": "E"
+}