“…In S. cerevisiae, in addition to the SPO11 complex, there are at least nine other Spo11-or DSB-associated proteins, including Mre11, Rad50, Xrs2, Ski8, Rec102, Rec104, Rec114, Mei4, and Mer2 (157), which form different subcomplexes to promote Spo11-dependent DSB formation. There are also DSB-associated proteins in plants, including those that are plant specific or have diverged substantially, such as AtPRD1, AtPRD2, AtPRD3, AtDFO, OsCRC1, OsSDS, and OsP31 comet (OsBVF1) (58,105,150,163,235,248,252). Among these, AtPRD1 and At-PRD2 are likely the mouse homologs of, respectively, MEI1 and MEI4 (58,59), and AtPRD3, OsPAIR1, and AtDFO (DSB FORMATION) are likely plant-specific proteins (58,163,248).…”