Found at: doi:10.1371/journal.pone.0005932.s006 (0.04 DOC) Table S2 Small RNA distribution tables used for generation [MS Excel] Found at: doi:10.1371/journal.pone.0005932.s007 (0.13 XLS) MB map MB File S1 Individual 5S rDNA sequences used for map generation [multi-FASTA] Found at: doi:10.1371/journal.pone.0005932.s008 (0.09 MB TXT) File S2 Multiple alignment of 5S rDNA sequences [MSF alignment format] Found at: doi:10.1371/journal.pone.0005932.s009 (0.26 MB TXT) References 1. Parker JS, Barford D (2006) Argonaute: A scaffold for the function of short regulatory RNAs. Trends Biochem Sci 31: 622–630. 2. Meins F Jr, Si-Ammour A, Blevins T (2005) RNA silencing systems and their relevance to plant development. Annu Rev Cell Dev Biol 21: 297–318. 3. Baulcombe D (2004) RNA silencing in plants. Nature 431: 356–363. 4. Pikaard CS (2006) Cell Biology of the Arabidopsis Nuclear siRNA Pathway for RNA-directed Chromatin Modification. Cold Spring Harb Symp Quant Biol 71: 473–480. 5. 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