Alternative olfactory neuron fates are specified by the LIM homeobox gene lim-4

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Alternative olfactory neuron fates are specified by the LIM homeobox gene lim-4.

The Caenorhabditis elegans AWA, AWB, and AWC olfactory neurons are each required for the recognition of a specific subset of volatile odorants. lim-4 mutants express an AWC reporter gene inappropriately in the AWB olfactory neurons and fail to express an AWB reporter gene. The AWB cells are morphologically transformed toward an AWC fate in lim-4 mutants, adopting cilia and axon morphologies cha...

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The lin-11 LIM homeobox gene specifies olfactory and chemosensory neuron fates in C. elegans.

Chemosensory neuron diversity in C. elegans arises from the action of transcription factors that specify different aspects of sensory neuron fate. In the AWB and AWA olfactory neurons, the LIM homeobox gene lim-4 and the nuclear hormone receptor gene odr-7 are required to confer AWB and AWA-specific characteristics respectively, and to repress an AWC olfactory neuron-like default fate. Here, we...

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The Lim homeobox gene Lhx2 is required for olfactory sensory neuron identity.

Progenitor cells in the mouse olfactory epithelium generate over a thousand subpopulations of neurons, each expressing a unique odorant receptor (OR) gene. This event is under the control of spatial cues, since neurons in different epithelial regions are restricted to express region-specific subsets of OR genes. We show that progenitors and neurons express the LIM-homeobox gene Lhx2 and that ne...

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The C. elegans LIM homeobox gene lin-11 specifies multiple cell fates during vulval development.

LIM homeobox family members regulate a variety of cell fate choices during animal development. In C. elegans, mutations in the LIM homeobox gene lin-11 have previously been shown to alter the cell division pattern of a subset of the 2 degrees lineage vulval cells. We demonstrate multiple functions of lin-11 during vulval development. We examined the fate of vulval cells in lin-11 mutant animals...

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Requirement for LIM Homeobox Gene Isl1 in Motor Neuron Generation Reveals a Motor Neuron– Dependent Step in Interneuron Differentiation

Motor neuron differentiation is accompanied by the expression of a LIM homeodomain transcription factor, Islet1 (ISL1). To assess the involvement of ISL1 in the generation of motor neurons, we analyzed cell differentiation in the neural tube of embryos in which ISL1 expression has been eliminated by gene targeting. Motor neurons are not generated without ISL1, although many other aspects of cel...

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ژورنال

عنوان ژورنال: Genes & Development

سال: 1999

ISSN: 0890-9369

DOI: 10.1101/gad.13.14.1794