title: Whole genome microarray analysis of C. elegans rrf-3 and eri-1 mutants.
abstract: We performed genome wide gene expression analysis on L4 stage Caenorhabditis elegans rrf-3(pk1426) and eri-1(mg366) mutant strains to study the effects caused by loss of their encoded proteins, which are required for the accumulation of endogenous secondary siRNAs. Mutant rrf-3 and eri-1 strains exhibited 72 transcripts that were co-over-expressed and 4 transcripts co-under-expressed (>2-fold, P<0.05) compared to N2 wild type strain. Ontology analysis indicated these transcripts were over represented for protein phosphorylation and sperm function genes. These results provide additional support for the hypothesis that RRF-3 and ERI-1 act together in the endo-siRNA pathway, and furthermore suggests their involvement in additional biological processes.
authors.affiliation: Department of Neurobiology, A.I. Virtanen Institute, Kuopio University, Kuopio 70211, Finland.
authors.forename: Suvi
authors.initials: S
authors.lastname: Asikainen
authors.forename: Markus
authors.initials: M
authors.lastname: Storvik
authors.forename: Merja
authors.initials: M
authors.lastname: Lakso
authors.forename: Garry
authors.initials: G
authors.lastname: Wong
mesh_terms: D000818:Animals; D017173:Caenorhabditis elegans / Q000235:genetics*; D029742:Caenorhabditis elegans Proteins / Q000235:genetics / Q000502:physiology*; D005095:Exoribonucleases / Q000235:genetics / Q000502:physiology*; D020869:Gene Expression Profiling; D005786:Gene Expression Regulation; D017238:Genes, Helminth; D016678:Genome; D020411:Oligonucleotide Array Sequence Analysis; D034741:RNA, Small Interfering / Q000378:metabolism; D012324:RNA-Dependent RNA Polymerase / Q000235:genetics / Q000502:physiology*; D020133:Reverse Transcriptase Polymerase Chain Reaction
chemical_list: D029742:Caenorhabditis elegans Proteins; D034741:RNA, Small Interfering; D012324:RNA-Dependent RNA Polymerase; C472756:RNA-directed RNA polymerase RRF-3, C elegans; C482202:ERI-1 protein, C elegans; D005095:Exoribonucleases