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Large-scale analysis of gene function in Caenorhabditis elegans by high-throughput RNAi.

Curr. Biol.2001 Feb 06;11(3):171-6
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摘要


Genome-wide analysis of gene function is essential for the post-genome era, and development of efficient and economical technology suitable for it has been in demand. Here we report a large-scale inactivation of the expressed genes in the nematode Caenorhabditis elegans. For this purpose, we have established a high-throughput methodology by modifying the conventional method [1, 2]. A set of tag-sequenced, nonredundant cDNAs corresponding to approximately 10,000 genes [3] (representing half of the predicted genes [4]) was used for the systematic duanyu1615 analysis. We have processed approximately 2500 genes to date. In development, 27% of them showed detectable phenotypes, such as embryonic lethality, post-embryonic lethality, sterility, and morphological abnormality. Of these, we analyzed the phenotypes of F1 sterility in detail, and we have identified 24 genes that might play important roles in germline development. Combined with the ongoing analysis of expression patterns of these cDNAs [3, 5], the functional information obtained in this work will provide a starting point for the further analysis of each gene. Another finding from this screening is that the incidence of essential genes is significantly lower in the X chromosome than in the autosomes.

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