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High-throughput reverse genetics: RNAi screens in Caenorhabditis elegans
Abstract:Two recent chromosome-wide screens for phenotypes caused by RNA-mediated interference (RNAi) in Caenorhabditis elegans have increased our understanding of essential genes in nematodes. These papers represent a major advance in functional genomics
- Authors :
Bargmann, Cornelia I
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Cilia are small, hair-like structures occurring on the apical surface of most of vertebrate cells. Defects in cilia cause a range of developmental phenotypes grouped into conditions called ciliopathies. Our aim is to dissect the structure and function of cilia and signalling pathways mediated by this organelle. To evaluate this, we are performing a high-throughput siRNA screen using siRNA pools...
The Caenorhabditis elegans vulva: A post-embryonic gene regulatory network controlling organogenesis
The Caenorhabditis elegans vulva is an elegant model for dissecting a gene regulatory network (GRN) that directs postembryonic organogenesis. The mature vulva comprises seven cell types (vulA, vulB1, vulB2, vulC, vulD, vulE, and vulF), each with its own unique pattern of spatial and temporal gene expression. The mechanisms that specify these cell types in a precise spatial pattern are not well ...
Osmotic avoidance in Caenorhabditis elegans: synaptic function of two genes, orthologues of human NRXN1 and NLGN1, as candidates for autism
Neurexins and neuroligins are cell adhesion molecules present in excitatory and inhibitory synapses, and they are required for correct neuron network function. These proteins are found at the presynaptic and postsynaptic membranes. Studies in mice indicate that neurexins and neurologins have an essential role in synaptic transmission. Recent reports have shown that altered neuronal connections ...
Biosynthesis and enzymology of the Caenorhabditis elegans cuticle: identification and characterization of a novel serine protease inhibitor.
The nematode Caenorhabditis elegans represents an excellent model in which to examine nematode gene expression and function. A completed genome, straightforward transgenesis, available mutants and practical genome-wide RNAi approaches provide an invaluable toolkit in the characterization of\ud nematode genes. We have performed a targeted RNAi screen in an attempt to identify components of the c...