Table 1. Lists of available nullisomic­tetrasomic (NT) and ditelosomic (Dt) stocks and those analyzed by John Innes Centre (JIC) and Cornell University (CU).
 Stock *  Comments  JIC  CU  Stock *  Comments  JIC  CU
 N1A­T1B        Dt1AS      *
 N1A­T1D  Deletion in 7DL.  *  *  Dt1AL    *  *
 N1B­T1A    *    Dt1BS  Deletion in 7AL .  *  *
 N1B­T1D      *  Dt1BL    *  *
 N1D­T1A      *  Dt1DS      *
 N1D­T1B    *    Dt1DL    *  *
 N2A­T2B Very low fertility; maintained as monosomic-tetrasomic line.  *    Dt2AS  Not pure CS background; deletion in 3BS.  *  *
 N2A­T2D  Very low fertility; maintained as monosomic-tetrasomic line.      Dt2BL  Deletion in 4AL .  *  *
 N2B­T2A        Dt2DS    *  *
 N2B­T2D    *  *  Dt2DL  Not pure CS background; very low fertility    *
 N2D­T2A    *  *  Dt3AS    *  *
 N2D­T2B        Dt3AL      *
 N3A­T3B        Dt3BS  Undergoes asynapsis.    *
 N3A­T3D    *  *  Dt3BL    *  *
 N3B­T3A    *  *  Dt3DS    *  *
 N3B­T3D        Dt3DL    *  *
 N3D­T3A      *  Dt4AS      
 N3D­T3B    *    Dt4AL  T. durum/Ae. tauschii in background.  *  *
 N4A­T4B        Dt4BS      *
 N4A­T4D    *  *  Dt4DS    *  *
 N4B­T4A  Sterile; maintained as a monosomic-tetrasomic line.      Dt4DL    *  *
 N4B­T4D  Sterile; maintained as a monosomic-tetrasomic line.  *    Dt5AL    *  *
 N4D­T4A  Very low fertility.      Dt5BL  Possible deletion in 2DS.  *  *
 N4D­T4B    *  *  Dt5DL    *  *
 N5A­T5B    *  *  Dt6AS    *  *
 N5A­T5D        Dt6AL  Not pure CS background; pure CS line available from AJ Lukaszewski   * 
 N5B­T5A  Carries a T2AS·5AL translocation.      Dt6BS  Deletion in 2BS.  *  *
 N5B­T5D  May carry translocations due to homoeologous recombination.  *  *  Dt6BL  Very low fertility.    *
 N5D­T5A    *    Dt6DS    *  *
 N5D­T5B      *  Dt6DL      *
 N6A­T6B        Dt7AS    *  *
 N6A­T6D    *  *  Dt7AL      *
 N6B­T6A  Correct identification is N6B­T6D.  *    Dt7BS    *  *
 N6B­T6D      *  Dt7BL  Not pure CS background.  *  *
 N6D­T6A        Dt7DS      *
 N6D­T6B  Not pure CS background.  *  *        
 N7A­T7B              
 N7A­T7D    *  *        
 N7B­T7A    *  *        
 N7B­T7D              
 N7D­T7A      *        
 N7D­T7B  Pilot, Thatcher and Hope in background.  *          

 * All stocks are maintained at and available from S.M. Reader at the John Innes Centre; A. Hang, P.O. Box 307, Aberdeen, ID 83210, USA; J.P. Gustafson at 206 Curtis Hall, University of Missouri, Columbia, MI 65211, USA; and A.J. Lukaszewski at University of California, Riverside, USA.

Editor's note: These stocks also are maintained by the Wheat Genetics Resource Center, Throckmorton Hall, Plant Pathology Department, Kansas State University, Manhattan, KS 66506-5502 U.S.A.




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