A cereal plant for use in the production of hybrid cereal plants, wherein the cereal plant comprises a monosomic alien addition chromosome carrying a male fertility restorer gene and at least one selection marker gene, wherein the male fertility restorer gene and the at least one selection marker gene are on the same side of the centromere of the monosomic alien addition chromosome; wherein the cereal plant is obtained or obtainable by a method as defined in any one of claims 6 to 8, and wherein the male fertility restorer gene comprises a nucleic acid sequence selected from the group consisting of: (i) a nucleic acid sequence as set forth in SEQ ID NO: 1, 6, 7, 8, or 10; (ii) a nucleic acid sequence with at least 80% sequence identity to the nucleic acid sequence as set forth in SEQ ID NO: 1, 6, 7, 8, or 10; (iii) a nucleic acid sequence having a coding sequence as set forth in SEQ ID NO: 2, 4, 9, 11, or 14; (iv) a nucleic acid sequence having a coding sequence with at least 80% sequence identity to the nucleic acid sequence as set forth in SEQ ID NO: 2, 4, 9, 11, or 14; (v) a nucleic acid sequence encoding an amino acid sequence as set forth in SEQ ID NO: 3, 5, 15, 42, or 43; (vi) a nucleic acid sequence encoding an amino acid sequence with at least 80% sequence identity to the amino acid sequence as set forth in SEQ ID NO: 3, 5, 15, 42, or 43, wherein the color marker gene is a blue aleurone gene, wherein the blue aleurone gene is from Agropyron elongatum, Agropyron trichophorum, or Triticum monococcum and wherein the blue aleurone gene comprises a nucleic acid sequence selected from the group consisting of: (i.i) a nucleic acid sequence having a coding sequence of SEQ ID NO: 44 or 12; (ii.i) a nucleic acid sequence having a coding sequence with at least 80% sequence identity to the nucleic acid sequence of SEQ ID NO: 44 or 12; (iii.i) a nucleic acid sequence encoding an amino acid sequence of SEQ ID NO: 45 or 13; (iv.i) a nucleic acid sequence encoding an amino acid sequence with at least 80% sequence identity to the amino acid sequence of SEQ ID NO: 45 or 13. wherein the cereal plant is obtained or obtainable by a method as defined in any one of claims 6 to 8, and wherein the male fertility restorer gene comprises a nucleic acid sequence selected from the group consisting of: (i) a nucleic acid sequence as set forth in SEQ ID NO: 1, 6, 7, 8, or 10; (ii) a nucleic acid sequence with at least 80% sequence identity to the nucleic acid sequence as set forth in SEQ ID NO: 1, 6, 7, 8, or 10; (iii) a nucleic acid sequence having a coding sequence as set forth in SEQ ID NO: 2, 4, 9, 11, or 14; (iv) a nucleic acid sequence having a coding sequence with at least 80% sequence identity to the nucleic acid sequence as set forth in SEQ ID NO: 2, 4, 9, 11, or 14; (v) a nucleic acid sequence encoding an amino acid sequence as set forth in SEQ ID NO: 3, 5, 15, 42, or 43; (vi) a nucleic acid sequence encoding an amino acid sequence with at least 80% sequence identity to the amino acid sequence as set forth in SEQ ID NO: 3, 5, 15, 42, or 43, (i) a nucleic acid sequence as set forth in SEQ ID NO: 1, 6, 7, 8, or 10; (ii) a nucleic acid sequence with at least 80% sequence identity to the nucleic acid sequence as set forth in SEQ ID NO: 1, 6, 7, 8, or 10; (iii) a nucleic acid sequence having a coding sequence as set forth in SEQ ID NO: 2, 4, 9, 11, or 14; (iv) a nucleic acid sequence having a coding sequence with at least 80% sequence identity to the nucleic acid sequence as set forth in SEQ ID NO: 2, 4, 9, 11, or 14; (v) a nucleic acid sequence encoding an amino acid sequence as set forth in SEQ ID NO: 3, 5, 15, 42, or 43; (vi) a nucleic acid sequence encoding an amino acid sequence with at least 80% sequence identity to the amino acid sequence as set forth in SEQ ID NO: 3, 5, 15, 42, or 43, wherein the color marker gene is a blue aleurone gene, wherein the blue aleurone gene is from Agropyron elongatum, Agropyron trichophorum, or Triticum monococcum and wherein the blue aleurone gene comprises a nucleic acid sequence selected from the group consisting of: (i.i) a nucleic acid sequence having a coding sequence of SEQ ID NO: 44 or 12; (ii.i) a nucleic acid sequence having a coding sequence with at least 80% sequence identity to the nucleic acid sequence of SEQ ID NO: 44 or 12; (iii.i) a nucleic acid sequence encoding an amino acid sequence of SEQ ID NO: 45 or 13; (iv.i) a nucleic acid sequence encoding an amino acid sequence with at least 80% sequence identity to the amino acid sequence of SEQ ID NO: 45 or 13. (i.i) a nucleic acid sequence having a coding sequence of SEQ ID NO: 44 or 12; (ii.i) a nucleic acid sequence having a coding sequence with at least 80% sequence identity to the nucleic acid sequence of SEQ ID NO: 44 or 12; (iii.i) a nucleic acid sequence encoding an amino acid sequence of SEQ ID NO: 45 or 13; (iv.i) a nucleic acid sequence encoding an amino acid sequence with at least 80% sequence identity to the amino acid sequence of SEQ ID NO: 45 or 13.