<?xml version="1.0" encoding="utf-8" standalone="no"?>
<?xml-stylesheet type='text/xsl' href='/oai-pmh/oai2.xsl'?>
<OAI-PMH xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd" xmlns="http://www.openarchives.org/OAI/2.0/">
  <responseDate>2026-10-14</responseDate>
  <request verb="GetRecord" identifier="oai:researchdata.se:doi-10-17044-scilifelab-24039510/0" metadataPrefix="oai_dc">https://api.researchdata.se/oai-pmh</request>
  <GetRecord>
    <record>
      <header>
        <identifier>oai:researchdata.se:doi-10-17044-scilifelab-24039510/0</identifier>
        <datestamp>2023-10-19</datestamp>
        <setSpec>subject:ssif:3</setSpec>
        <setSpec>subject:ssif:10611</setSpec>
        <setSpec>subject:ssif:106</setSpec>
        <setSpec>subject:ssif:1</setSpec>
        <setSpec>principal:slug:uppsala-university</setSpec>
      </header>
      <metadata>
        <oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
          <dc:type>info:eu-repo/semantics/other</dc:type>
          <dc:type>http://purl.org/dc/dcmitype/Dataset</dc:type>
          <dc:identifier>https://doi.org/10.17044/SCILIFELAB.24039510</dc:identifier>
          <dc:title xml:lang="en">3. Comparative population transcriptomics in krill: orthogroups (FASTA, TSV files)</dc:title>
          <dc:creator>https://orcid.org/0000-0002-9081-9663</dc:creator>
          <dc:subject xml:lang="en">Medical and Health Sciences</dc:subject>
          <dc:subject xml:lang="sv">Medicin och hälsovetenskap</dc:subject>
          <dc:subject xml:lang="en">Ecology</dc:subject>
          <dc:subject xml:lang="sv">Ekologi</dc:subject>
          <dc:description xml:lang="en">This item contains a gzipped archive with ~13,000 orthogroups used to study molecular evolution in this project.

Archive:

krill.orthogroups.tar.gz

Contents of archive (FILE,SIZE,SPECIES,SAMPLES,SNPs):

- krill.proteinortho.tsv - the primary output table from Proteinortho. Describes which protein sequences from which species belong to the same orthogroup. Format according to the standard output of the program.
- krill.proteinortho.tsv.seqs.csv - a processed table that also contains the actual sequences line by line (see below).
- the alignments directory, which contains all OGs in unaligned and aligned files in FASTA format (see below).
Format of the krill.proteinortho.tsv.seqs.csv table

The fields are:

- NR = orthogroup number
- ORTHO_GROUP = orthogroup ID
- N_SPECIES = the number of species
- N_GENES = the number of genes/sequences in this orthogroup
- N_MATCHING[o] = number of sequences matching outgroup species for this orthogroup
- N_NON_MATCHING = number of sequences matching ingroup species for this orthogroup
- HEADER = the name of this particular sequence
- SEQ = the protein sequence
Contents of the alignments directory

Each orthogroup is represented by up to four FASTA files:

- OG*.cds.ginsi.fasta.orig = the original, unaligned and unfiltered sequences
- OG*.cds.ginsi.fasta = the aligned and filtered sequences
- OG*.cds.ginsi.fasta.without_cold_euphausia.fasta = the aligned and filtered sequences after removing cold-associated Euphausia species
- OG*.cds.ginsi.fasta.without_cold_thysanoessa.fasta = the aligned and filtered sequences after removing cold-associated Thysanoessa species</dc:description>
          <dc:rights>https://creativecommons.org/licenses/by-sa/4.0/</dc:rights>
          <dc:publisher xml:lang="en">Uppsala University</dc:publisher>
          <dc:publisher xml:lang="sv">Uppsala universitet</dc:publisher>
          <dc:date>2023-10-19T00:00:00Z</dc:date>
        </oai_dc:dc>
      </metadata>
    </record>
  </GetRecord>
</OAI-PMH>