Fig. 6. Distinct pathways involved in HOB gene regulation. Transcriptional regulation by egl-44 and egl-46 directs a cell-specific pathway necessary for HOB function in vulva location behavior. In the general ciliogenic pathway, the RFX-transcription factor DAF-19 controls expression of cilium structural genes to provide functional compartment common for all ciliated sensory neurons. DAF-19 has an additional influence on HOB neuronal function by affecting expression of downstream genes in the HOB-specific pathway through some unknown factor(s), indicated by Y. Genes in the shadowed box are the ones in which the Lov phenotype were analyzed in mutants (Barr and Sternberg, 1999) (this work). There are no existing mutants for ceh-26 and nlp-8.

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