Release 20

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Goals and Timeline for Release #20

Timeline for Release: Goal is around the end of July or early Aug 2013

  • database should be loaded and available on the beta browser by Friday Aug 2nd

Summary and Announcements

The latest release of the Plant Ontology, version #20, is available on our Plant Ontology Browser.

This full release features the addition of 48 new terms, for both the Plant Anatomical Entity (44) and Plant Structure Development Stage (4) branches. It also includes new and updated annotation data for Oryza sativa, Gossypium hirsutum and Arabidopsis thaliana.

-Includes all revisions from 1761 and on.

-For more information, please see also: Details_of_Changes_to_Release_20

The release features revision to the following sections:

Revisions to the plant anatomical entity branch:

  • parts of the perianth:
  • protoxylem terms:
  • plant sap (PO:0025538) terms:
  • tapetum terms
  • paraclade terms
  • trichome terms


  • inflorescence branch (PO:0009081) terms
  • infructescence branch (PO:0025243) terms

Revisions to the plant structure development stage branch