trail cell

The Planarian Anatomoy Ontology (PLANA) is a collection of terms curated from the literature and other organism anatomy ontologies to describe anatomical features, life cycle stages and developmental processes in the regenerative flatworm Schmidtea mediterranea. The latest version of the PLANA Ontology is available through the Open Biological and Biomedical Ontology Foundry (OBO) . PLANA Ontology terms are searchable at the EMBL-EBI Ontology Lookup Service (OLS) and the PLANA Ontology Terms Page.

Below, the Overview Section is populated with infomration from the OLS.

Additional experimental information related to PLANA Ontology terms can be found in the Additional Term Information Section.



    ▻ Planarian Anatomy Ontology Term Overview

    ▻ Additional Term Information

      ▻ In Situ Hybridization Data

      ▻ Sequences




    Planarian Anatomy Ontology Term Overview


    NAME:

      trail cell


    DEFINITON:

      Ovo+ neoblasts and post-mitotic eye progenitors that simultaneously migrate and differentiate into photoreceptor neurons and non-neuronal pigment cup cells comprising the optic cup.


    TERM DEFINITION CITATIONS:

      PMID:22884275


    TERM ID:

      PLANA:0000095


    ABOUT THIS TERM:

      trail cell "is a" progenitor cell

      trail cell "contained in" dorsal compartment, anterior compartment, head and parenchymal compartment

      trail cell "existence overlaps" Stage 6, juvenile, asexual adult, sexually mature adult, Stage 8 and Stage 7

      trail cell "existence starts at point" Stage 6

      trail cell "part of" visual system and neoblast compartment


      eye, pigment cup cell and photoreceptor neuron "is a" trail cell


    BROWSE ONTOLOGY TREE (IN OLS):

    Click on the '-' and '+' to collapse and expand term 'is a' and 'part of' relationships.


    Planarian Anatomy Ontology


    EXPLORE ONTOLOGY GRAPH:


    Dynamically explore this term by selecting additional relationships to display ( checkboxes on the right ) and by expanding nodes by double clicking on a node. Single click on a node to display the definition below.

     

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    Additional Term Information


    All experimental data displayed here is from Davies et. al., 2017, Smed Embryogenesis Molecular Staging Resource


    IN SITU HYBRIDIZATION DATA:


    Smed IDAccessionNameAliasEnriched during stage(s)Tissue/PatternImages
    SMED30018592AFP48372.1ovoovoStage 6, Stage 7, Stage 8trail cell, photoreceptor neuron, optic cup, pigment cup cell, visual system, eye
    Click to see image symbols and abbreviations
    Abbreviation or symbolDefinition
    Ooral hemisphere
    Aaboral hemisphere
    Ddorsal
    Vventral
    Llateral
    black arrowheadembryonic pharynx
    red arrowheaddefinitive pharynx
    black arrowsprimitive gut
    yellow arrowsprimitive ectoderm cells
    cyan arrowsbrain
    cyan arrowheadsnerve cords
    blue arrowheadseye progenitors (trail cells)
    purple arrowheadseyes
    scale bar100 µm

     

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    SEQUENCES:

    smed_20140614 transcript sequences for genes validated by in situ hybridization (above).

    >SMED30018592 ID=SMED30018592|Name=ovo|organism=Schmidtea mediterranea sexual|type=transcript|length=1211bp
    GTCATATTGAACACTGAGACTAGCTATCAATAGCTGACAATTAGACGTATAAAATGTTAGGGTACGCCTTTTTGGCCATT
    ATTTCACACCAAAATTTCCATGAGTATTTTTCTAATAAGCACTCTACTCGCAAACGATGACGAAATGCCCACAGATTTGT
    CATCGAAAACTGAAAAGATTGAAAACCATGAAAAATCTGAAAGGAATCTCTGCAAGTATTCCAGTCAGTTTCTTTCCTGT
    TTTTATTCACAGGAAATGTTGACACTACTTATGAGAAAAAATTTCATCAATCAATATTCATTTTATTTAAAGATTTTCTC
    GGGGTTTCCACAATTCGTCGATAACTTCAACTTAGTAAATCCAACAGATTTCACCGTCAATTCAAATTCAACAACAATTT
    TGCCCTCATTCAACTTCCATAAAACGTCATTGAATATCGAAATGAACACCTCACTGGCCAATTCTTCAAGCACTGGTAGG
    TCGTCTCCAACTGAAACTGTGTCTGAAAATCTTTGGTTAGAAAAAGTAAAGGTGGAAAAATATTTCCATTTAATTGAAAA
    TCTATCACAATCCCAAGAGAACATTGAAGACATTGTCAAAACGATCAAAGTCAAACGAAGAAATTTTGCTGAATATATTA
    AGAAACTTTACCTAAGTGATCCAGCCAAATTTAAGTTGACAAATGGTGGAGATGGAATAGTAAATCCATTTAGAAAACAA
    TTCAAAGAAGAACGAGATAAATCTATGGACAAATTTTGCATCGAAGTTAATCACAATTATCAATGTAAGATATGTAACAA
    GGTGTTTCCTTCCAAAAAGCACATGCAACGTCATATACGTTCACACGGTGTAAATTTTGATTGGTTGTGTAAATATTGTT
    TTAAACCGTTTATTGATTCCTACGATTTAAAACGACATACGAGAGTCCATACAGGAGTTCAACCATACAAATGTCAAAGT
    TGCACAAGAAAATTCAGTCAACGATGCTCATTGGAAAGTCATCAGGTGAAAATCCATGGAGTAGCACTGAATTATCTATA
    CAAAGAAAGAAGGAACAAGTTGTATCCGTGTGAAATCTGCAGTTATAGTACGTCTTGTAAAGCAACTTGGTTGAGTCACA
    TCATTCAGGAGCACCCGAATTCACTTTATGCAAAAGAAGAAGCACTCAAAGGAAAATACAACTGACTTTGAAAAATATTG
    ATTTTTCAAGC

     

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