U12 type introns were lost at multiple occasions during evolution
1 Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy at University of Gothenburg, Box 440, SE-405 30 Göteborg, Sweden
2 Bioinformatics Group, Department of Computer Science and Interdisciplinary Center for Bioinformatics, University of Leipzig, Haertelstrasse 16-18, D-04107 Leipzig, Germany
BMC Genomics 2010, 11:106 doi:10.1186/1471-2164-11-106Published: 11 February 2010
Additional file 1:
Intron length statistics. Upper panel: Distribution of lengths in the size range 1-300 nt for all introns (U2 and U12) of T. spiralis, E. histolytica, A. castellanii, P. tricornutum, M. brevicollis, and C. reinhardtii. Lower panel: Mean intron lengths for all species with U12 introns considered in this work.
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