Molecular mapping of the suppressor gene Igc1 to the gametocidal gene Gc3-C1 in common wheat.

Several species of the genus Aegilops, wild relatives of wheat (Triticum aestivum, 2n = 6x = 42, AABBDD) carry gametocidal (Gc) genes. Gc genes kill the gametes without themselves by causing chromosomal breakage during post-meiotic cell divisions, and therefore are strong segregation distorters. The Gc gene Gc3-C1 derived from chromosome 3C of Ae.