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  1. Plant Ontology DB
    Full Name of the Resource : Controlled vocabulary of plant structures and growth stages
    Resource Category : Databases -> Genomic Databases (Non-Human) -> Genome Annotation Terms, Ontologies and Nomenclature

    Brief Description : The Plant Ontology (PO, is a collaborative effort among several plant databases and experts in plant systematics, botany and genomics. The goal of the PO is to develop simple yet robust and extensible controlled vocabularies that accurately reflect the biology of plant structures (morphology and anatomy) and developmental stages. Once implemented, these provide a network of vocabularies linked by relationships (ontology) to facilitate queries that cut across data sets within a database or between multiple databases. Using the ontology browser (, over 5000 gene annotations from Arabidopsis, maize and rice can be searched. Using the same browser a user can also search the plant structure (e.g. root hair) and growth stage (e.g. reproductive stage) terms. Learn how to browse and use the ontologies by visiting The vocabularies, annotations, mappings and the database can be downloaded by following the instructions provided at Learn more about the ontologies, design and development aspects by visiting
    Subject Area : Plant Ontology

    Institute/s :
    Department of Department of Plant Breeding, 240 Emerson Hall, Cornell University, Ithaca, NY, 14853, USA
    Cold Spring Harbor Laboratory, 1 Bungtown Rd, Cold Spring Harbor, NY 11724, USA
    Carnegie Institution of Washington, Stanford, CA 94305, USA
    Department of Biology, University of Missouri at St. Louis, St. Louis MO 63121, USA
    Maize Genetics Cooperation - Stock Center, Department of Crop Sciences - University of Illinois, Urbana, IL 61801, USA
    Agricultural Research Service, United States Department of Agriculture, USA
    Curtis Hall University of Missouri-Columbia, Columbia, MO 65211, USA
    Missouri Botanical Garden, 4344-Shaw Boulevard, St. Louis, MO 63110

    Country : United States

    Year : 2008