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. 2011 Jun 2;12:288. doi: 10.1186/1471-2164-12-288

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Copyright ©2011 Nunes et al; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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LTR-siRNAs mapping to the retrotransposable element MAGGY. (A) Distribution of small RNAs (black dotted box) to a ~ 0.8 Mb region of chromosome I show two major peaks on the plus (sense) and minus (antisense) strands. Closer inspection of boxed region reveals many small RNAs (black arrows) mapping to the full length (~ 5 kb) of MAGGY LTR-retrotransposon (red arrow). (B) Detailed inspection of boxed region shows LTR-siRNAs map in roughly equal proportions to both strands of MAGGY where the y axis corresponds to small RNA mappings to sense (red) and to antisense (green) strands and the X axis represents the full length MAGGY sequence. (C) Size distribution of MAGGY-derived LTR-siRNAs reveals a peak length of 22-23 nucleotides.