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Halachmi, N., Nachman, A., Salzberg, A. (2016). A newly identified type of attachment cell is critical for normal patterning of chordotonal neurons.  Dev. Biol. 411(1): 61--71.
FlyBase ID
FBrf0231059
Publication Type
Research paper
Abstract

This work describes unknown aspects of chordotonal organ (ChO) morphogenesis revealed in post-embryonic stages through the use of new fluorescently labeled markers. We show that towards the end of embryogenesis a hitherto unnoticed phase of cell migration commences in which the cap cells of the ventral ChOs elongate and migrate towards their prospective attachment sites. This migration and consequent cell attachment generates a continuous zigzag line of proprioceptors, stretching from the ventral midline to a dorsolateral position in each abdominal segment. Our observation that the cap cell of the ventral-most ChO attaches to a large tendon cell near the midline provides the first evidence for a direct physical connection between the contractile and proprioceptive systems in Drosophila. Our analysis has also provided an answer to a longstanding enigma that is what anchors the neurons of the ligamentless ventral ChOs on their axonal side. We identified a new type of ChO attachment cell, which binds to the scolopale cells of these organs, thus behaving like a ligament cell, but on the other hand exhibits all the typical features of a ChO attachment cell and is critical for the correct anchoring of these organs.

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    Language of Publication
    English
    Additional Languages of Abstract
    Parent Publication
    Publication Type
    Journal
    Abbreviation
    Dev. Biol.
    Title
    Developmental Biology
    Publication Year
    1959-
    ISBN/ISSN
    0012-1606
    Data From Reference
    Aberrations (1)
    Alleles (11)
    Genes (11)
    Natural transposons (1)
    Insertions (2)
    Experimental Tools (2)
    Transgenic Constructs (5)