Cited by 339Developmental Biology and Gene RegulationAxon Guidance and Neuronal SignalingNeurobiology and Insect Physiology Research

Rotation of photoreceptor clusters in the developing drosophila eye requires the nemo gene

Open access
Choi, Kwang-Wook, Benzer, Seymour·1994·Cell

Abstract

The Drosophila eye consists of a reiterative hexagonal array of photoreceptor cell clusters, the ommatidia. During normal morphogenesis, the clusters in the dorsal or ventral halves of the disc rotate 90 degrees in opposite directions, forming mirror images across a dorsoventral equator. In the mutant nemo (nmo), there is an initial turning of approximately 45 degrees, but further rotation is blocked. Genetic mosaic analysis indicates that the nmo gene acts upon each cluster as a whole; normal nmo function in one or more photoreceptor cells appears to be sufficient to induce full rotation. The nmo gene sequence encodes a serine/threonine protein kinase homolog, suggesting that the kinase is required to initiate the second step of rotation. In another mutant, roulette, excessive rotation through varying angles occurs in many ommatidia. This defect is suppressed by nmo, indicating that nmo acts upstream in a rotation-regulating pathway.

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Crossref · 10.1016/0092-8674(94)90579-7

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  • NLK is an evolutionarily conserved serine/threonine protein kinase.

    “NLK is an evolutionarily conserved serine/threonine protein kinase (Choi and Benzer, 1994; Banfi et al., 1996; Brott et al., 1998; Meneghini et al., 1999).”

    From Polyglutamine Disease Toxicity Is Regulated by Nemo-like Kinase in Spinocerebellar Ataxia Type 1 (2013) · cites this paper as Choi and Benzer, 1994

    The Introduction (page not supplied) says that the Drosophila nemo (nmo) locus encodes a homolog of serine/threonine protein kinases. The passages do not establish that NLK is evolutionarily conserved across species, so they support the kinase description but not that qualifier. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • NLK was originally identified in 1994 as the Drosophila gene nemo required for proper rotation of photoreceptor cells in the eye during ommatidia morphogenesis.

    “was originally identified in 1994 as the Drosophila gene nemo required for proper rotation of photoreceptor cells in the eye during ommatidia morphogenesis [14].”

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Authors
Choi, K.-W., & Benzer, S.
Affiliations
California Institute of Technology (US)
Venue
Cell
Publisher
Elsevier BV
Published
1994-07
Volume
78
Issue
1
Pages
125-136
ISSN
0092-8674 (ISSN-L)
OpenAlex
W1975803734
Cited by
339
References
49
Citations by year
2025: 2 · 2024: 4 · 2023: 4 · 2022: 10 · 2021: 6 · 2020: 5 · 2019: 5 · 2018: 4 · 2017: 5 · 2016: 5 · 2015: 7 · 2014: 5 · 2013: 9 · 2012: 10
FWCI
7.22
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
  • Zenodo (CERN European Organization for Nuclear Research) (cc-by)
Funders
  • National Science Foundation (8908154)
  • James G. Boswell Foundation
  • National Institutes of Health
  • National Eye Institute (EY0 9278)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Axon Guidance and Neuronal Signaling
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurobiology and Insect Physiology Research
Keywords
NEMO gene, serine/threonine kinase
MeSH terms
Amino Acid Sequence, Animals, Base Sequence, Chromosome Mapping, Cloning, Molecular, Drosophila, Eye, Female, Male, Molecular Sequence Data, Mutation, Suppression, Genetic, Gene Expression, Genes, Insect, Protein Serine-Threonine Kinases, Sequence Homology, Amino Acid, Sequence Analysis, DNA, Photoreceptor Cells, Invertebrate, Mitogen-Activated Protein Kinases, Drosophila Proteins

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