Constrain Sequencing Platform to a predefined list of platforms

[marcosmro]

Using free-text entry for the Sequencing Platform field (instrument_model in the submission.xml file) has generated NCBI processing issues in previous submissions. For example, entering "Illumina HiSeq2500" instead of "Illumina HiSeq 2500" generates the following processing error:

<Response error_source="system" status="processed-error">
      <Message severity="error-stop">An error occurred during submission processing. Please contact SRA helpdesk for more information. Please do not create another (duplicate) submission with the same data.</Message>
</Response>

[marcosmro]

A spreadsheet with the list of instrument models can be downloaded from the SRA submission portal (templates tab, SRA section): https://submit.ncbi.nlm.nih.gov/templates/. Available here too: SRA_metadata_acc.xlsx

The tab labelled "Library and Platform Terms" contains the valid values for the following attributes in the submission.xml file:

• library_source
• library_selection
• library_strategy
• instrument_model

We need to update the MiAIRR template to constrain the corresponding fields to those values.