GCAT genesT A C G GCAT Article Chromosome Evolution in the Free-Living Flatworms: First Evidence of Intrachromosomal Rearrangements in Karyotype Evolution of Macrostomum lignano (Platyhelminthes, Macrostomida) Kira S. Zadesenets 1,*, Nikita I. Ershov 1, Eugene Berezikov 1,2 and Nikolay B. ...