Telomeric small RNAs in the genus Caenorhabditis

Models of telomere RNAs and chromosome termini. Comparisons of prominent species of small RNAs (orange) and chromosome termini (lavender) for (A) Caenorhabditis (Raices et al. 2008), (B) Tetrahymena (Jacob et al. 2001, 2003), and (C) mammals (Sfeir et al. 2005). The Caenorhabditis terminal (TA) dinucleotide indicates uncertain nucleotides at the end of the 3′ overhang, whereas the Tetrahymena and mammalian 3′ nucleotides have been confirmed experimentally, the most frequent indicated based on highest vertical position.