In a paper published online in advance in Genome Research this week, researchers report their use of karyotype reconstruction across several ancestral grass species, which they say found "new mechanisms of genome shuffling as a source of plant evolution." Using paleogenomics, the team "delineated sequence intervals comprising a complete set of junction break points of orthologous regions from rice, maize, sorghum, and Brachypodium genomes" and that "the chromosome num