by Mercè Pi­queras — Re­cently, 'Na­ture' pub­lished an ar­ti­cle about the genome se­quence and analy­sis of Phy­toph­thora in­fes­tans, the oomycete that caused the potato blight in the 19th cen­tury that changed the course of his­tory. Phy­toph­thora in­fes­tans is the rea­son that to­day about 11% of the pop­u­la­tion of the United States is of Irish ori­gin and...