home .. general references  .. nomenclature .. abdominal PNS organization .. sensory organ description .. antibodies .. enhancer-traps and reporters .. Gal4 lines .. questions .. search


D. melanogaster embryonic and larval peripheral nervous system

V. Orgogozo1 and W. Grueber2  
1.  FRE2852, Université Pierre et Marie Curie, 7 Quai Saint Bernard, 75005 Paris, France
2. Physiology and Cellular Biophysics, Columbia University, 630 West 168th Street, New York, NY 10032, USA

Last update: March 2008

If you use this web site in your work, please cite our paper:
FlyPNS, a database of the Drosophila embryonic and larval peripheral nervous system. BMC Dev Biol. 2005, 5:4. Medline. PDF

    Here are described the embryonic and larval sensory organs of D. melanogaster that are located in abdominal segments A1-A7 (their pattern, morphology and development). Motoneurons and glial cells that are not associated to sensory organs are not considered here. The embryonic expression pattern of useful sensory markers, some of which have not been reported previously, is also indicated. Although the embryonic PNS is extensively studied as a powerful model of developmental biology, many discrepancies regarding the abdominal PNS pattern (number of neurons, relative positions of the cells...) are still found in the literature. This web page is intended to synthesize all the present studies and proposes a consensual PNS pattern.

    All the sensory organ cells described here are formed during embryogenesis from stage 11 to stage 15. As opposed to most other insects, no additional sensory cell arises during larval stages. Thus, the embryonic PNS greatly resembles the larval PNS. Each of the seven abdominal segments A1-A7 show the same sensory organ pattern.

general references


abdominal PNS organization
(Firefox, Mozilla or Internet Explorer are recommended)

sensory organ description
(Firefox, Mozilla or Internet Explorer are recommended)

expression patterns:  antibodies, enhancer-traps and reporter genes, Gal4 lines
(Firefox, Mozilla or Internet Explorer are recommended)


We thank FlyBase for providing a link to this web site.

Comments and additions are welcome at: Virginie.Orgogozo snv.jussieu.fr