Size distribution of old and young inter-CDS regions in different yeast species. A) Saccharomyces cerevisiae, B) Kluyveromyces waltii, C) Zygosaccharomyces rouxii. Figure legends are: Young - interCDS regions that are not conserved in any other ten yeast species; Old - interCDS regions that are conserved in any other ten yeast species; BI - inter-CDS regions flanked by bidirectional/divergent gene neighbours; UNI - inter-CDS regions flanked by unidirectional/co-oriented gene neighbours; CON - inter-CDS regions flanked by convergent gene neighbours. See Additional file 1 for the remaining eight species.
Chen et al. BMC Genomics 2011 12:320 doi:10.1186/1471-2164-12-320