Correction

PLANT BIOLOGY. For the article “Detection of 91 potential conserved plant microRNAs in Arabidopsis thaliana and Oryza sativa identifies important target genes,” by Eric Bonnet, Jan Wuyts, Pierre Rouzé, and Yves Van de Peer, which appeared in issue 31, August 3, 2004, of Proc. Natl. Acad. Sci. USA (101, 11511–11516; first published July 22, 2004; 10.1073/pnas.0404025101), the authors note that the nomenclature initially adopted for the predicted microRNA sequences differs from that for sequences recently deposited in the miRNA registry of the RFAM database (1). For instance, the Arabidopsis candidate MIR1 might be mistaken for the Caenorhabditis miRNA cel-mir-1 or the Drosophila miRNA dme-mir-1. A list of miRNAs with nomenclature that is compatible with the existing nomenclature appears online at www.pnas.org/content/vol0/issue2005/images/data/0501139102/DC1/01139Table1.xls. When a candidate miRNA was located at the same locus as one described previously, the official miRNA registry nomenclature was used. When the locus was different and the sequence did not show a high degree of similarity to a known Arabidopsis miRNA sequence, a different prefix (mcat, standing for miRNA candidate in Arabidopsis thaliana) was used. In addition, the authors note that in some cases the computational pipeline predicted not only the correct position for a known miRNA, but also the sequence corresponding to the reverse complement of the same locus. Because most of the previously known miRNAs have experimental support, these candidates are most likely false positives and are no longer included in the list of candidate miRNAs. The corrected candidate miRNA table has been published online at www.pnas.org/content/vol0/issue2005/images/data/0501139102/DC1/01139Table1.xls. The authors regret any confusion in nomenclature that the original publication may have caused.