Genetic analysis of chemosensory control of dauer formation in Caenorhabditis elegans
Article Abstract:
Dauer formation refers to the developmental arrest undergone by the L2 molt of Caenorhabditis elegans in response to adverse environmental conditions. An investigation was conducted to identify and characterize genes involved in the chemosensory transduction that controls dauer formation. Single and double mutation analysis revealed that most of the genes involved in dauer formation constitute a linear epistatic pathway. One gene, daf-11, was identified as an important regulator of the chemosensory transduction mechanism. Based on the results, a model for the function of the different dauer-formation genes is presented.
Publication Name: Genetics
Subject: Biological sciences
ISSN: 0016-6731
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
Characterization of Caenorhabditis elegans lectin-binding mutants
Article Abstract:
Forty five Caenorhabditis elegans mutants were identified using lectins from wheatgerm and soybeans. The recessive mutations spans six genes, namely srf-2, srf-3, srf-4, srf-5, srf-8 and srf-9. srf-2, -3 and -5 mutants are essentially normal except for their different lectin-binding reaction. On the other hand, the other three mutants possess various structural abnormalities in addition to aberant lectin reaction. Among these defects are aberant egg-laying, movement incoordination and abnormal morphogenesis of the copulatory bursa.
Publication Name: Genetics
Subject: Biological sciences
ISSN: 0016-6731
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: The mitochondrial genomes of two nematodes, Caenorhabditis elegans and Ascaris suum. Testing for equality of evolutionary rates
- Abstracts: par-4, a gene required for cytoplasmic localization and determination of specific cell types in Caenorhabditis elegans embryogenesis
- Abstracts: Purification and properties of an extracellular agarase from Alteromonas sp.strain C-1. part 2 Regeneration of phosphorus and nitrogen by four species of heterotrophic nanoflagellates feeding on three nutritional states of a single bacterial strain
- Abstracts: Development of monoclonal antibodies that identify Vibrio species commonly isolated from infections of humans, fish, and shellfish. part 2
- Abstracts: On-line visualization of the competitive behavior of antagonistic bacteria. Diversity and antagonistic potential of bacteria associated with bryophytes from nutrient-poor habitats of the Baltic Sea coast