An ancient genomic regulatory block conserved across bilaterians and its dismantling in tetrapods by retrogene replacement - Maeso, Ignacio; Irimia, Manuel; Tena, Juan J.; González-Pérez, Esther; Tran, David; Ravi, Vydianathan; Venkatesh, Byrappa; Campuzano, Sonsoles; Gómez-Skarmeta, José Luis; Garcia-Fernàndez, Jordi (Genome Research, 2012)