PMID:11137018

Citation	Piano, F, Schetter, AJ, Mangone, M, Stein, L and Kemphues, KJ RNAi analysis of genes expressed in the ovary of Caenorhabditis elegans. Curr. Biol. 10:1619-22
Abstract	As a step towards comprehensive functional analysis of genomes, systematic gene knockout projects have been initiated in several organisms [1]. In metazoans like C. elegans, however, maternal contribution can mask the effects of gene knockouts on embryogenesis. RNA interference (RNAi) provides an alternative rapid approach to obtain loss-of-function information that can also reveal embryonic roles for the genes targeted [2,3]. We have used RNAi to analyze a random set of ovarian transcripts and have identified 81 genes with essential roles in embryogenesis. Surprisingly, none of them maps on the X chromosome. Of these 81 genes, 68 showed defects before the eight-cell stage and could be grouped into ten phenotypic classes. To archive and distribute these data we have developed a database system directly linked to the C. elegans database (Wormbase). We conclude that screening cDNA libraries by RNAi is an efficient way of obtaining in vivo function for a large group of genes. Furthermore, this approach is directly applicable to other organisms sensitive to RNAi and whose genomes have not yet been sequenced.
Links	PubMed
Keywords	Animals; Caenorhabditis elegans/anatomy & histology; Caenorhabditis elegans/embryology; Caenorhabditis elegans/genetics; Caenorhabditis elegans/metabolism; Databases, Factual; Female; Gene Expression; Gene Expression Profiling; Gene Library; Genes, Helminth; Helminth Proteins/classification; Helminth Proteins/genetics; Morphogenesis; Ovary/physiology; RNA, Helminth/antagonists & inhibitors; RNA, Helminth/metabolism
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