Distinct roles of transcription factors EGL-46 and DAF-19 in specifying the functionality of a polycystin-expressing sensory neuron necessary for C. elegans male vulva location behavior.
Caenorhabditis elegans polycystins LOV-1 and PKD-2 are expressed in the male-specific HOB neuron, and are necessary for sensation of the hermaphrodite vulva during mating. We demonstrate that male vulva location behavior and expression of lov-1 and pkd-2 in the ciliated sensory neuron HOB require the activities of transcription factor EGL-46 and to some extent also EGL-44. This EGL-46- regulated program is specific to HOB and is distinct from a general ciliogenic pathway functioning in all ciliated neurons. The ciliogenic pathway regulator DAF-19 affects downstream components of the HOB-specific program indirectly and is independent of EGL-46 activity. The sensory function of HOB requires the combined action of these two distinct regulatory pathways.
Yu
Hui
H
HHMI and Division of Biology, California Institute of Technology, Pasadena, CA 91125, USA.
Pretot
Rene F
RF
Burglin
Thomas R
TR
Sternberg
Paul W
PW
D000818:Animals; D030801:Animals, Genetically Modified; D017173:Caenorhabditis elegans / Q000033:anatomy & histology / Q000502:physiology*; D029742:Caenorhabditis elegans Proteins / Q000235:genetics / Q000378:metabolism*; D012734:Disorders of Sex Development; D005786:Gene Expression Regulation; D006801:Humans; D008297:Male; D008565:Membrane Proteins / Q000235:genetics / Q000378:metabolism*; D009475:Neurons, Afferent / Q000166:cytology / Q000378:metabolism*; D011506:Proteins / Q000235:genetics / Q000378:metabolism*; D011993:Recombinant Fusion Proteins / Q000235:genetics / Q000378:metabolism; D012726:Sexual Behavior, Animal / Q000502:physiology*; D050396:TRPP Cation Channels; D014157:Transcription Factors / Q000235:genetics / Q000378:metabolism*
D029742:Caenorhabditis elegans Proteins; D008565:Membrane Proteins; D011506:Proteins; D011993:Recombinant Fusion Proteins; D050396:TRPP Cation Channels; D014157:Transcription Factors; C410596:DAF-19 protein, C elegans; C479546:EGL-46 protein, C elegans