Table 2. Races of Puccinia triticina in the U.S. in 2005 determined by virulence to 20 near-isogenic lines of Thatcher wheat with leaf rust-resistance genes. Differentials used were 1a, 2c, 3, 9, 16, 24, 26, 3ka, 11, 17, 30, B, 10, 14a, 18, 21, 28, 41, 42. An * indicates less than 0.6 %. For area designations, see Figure 3.
 Race  Virulence combination (inneffective Lr genes)  SE  NE  OH Valley  TX-OK  KS-NE  NM SD ND  CA  WA  U.S. Total
 #  %  #  %  #  %  #  %  #  %  #  %  #  %  #  %  #  %
 BBBDB  14a 0 * 0 0 0 0 0 0 0 0 1 * 0 0 0 0 2 0.3
 MBBJG  1,3,10,14a,28 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 25 2 0.3
 MBDSB  1,3,17,B,10,14a 6 4 2 8 3 11 9 4 1 2 6 2 7 35 1 13 35 4.4
 MBJJG  1,3,11,17,10,14a,28 1 * 0 0 0 0 0 0 0 0 0 0 0 0 4 50 5 0.6
 MBRKG  1,3,3ka,11,30,10,14a,18,28 12 8 0 0 0 0 0 0 2 3 0 0 0 0 0 0 14 1.8
 MBSJB  1,3,3ka,11,17,10,14a 0 0 0 0 0 0 0 0 0 0 0 0 2 10 0 0 2 0.3
 MBTSB  1,3,3ka,11,17,30,B,10,14a 1 * 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0.1
 MCDSB  1,3,26,17,B,10,14a 15 10 10 42 0 0 25 11 9 13 8 3 1 5 0 0 68 8.5
 MCDSG  1,3,26,17,B,10,14a,28 0 0 0 0 0 0 2 1 0 0 1 * 2 10 1 13 6 0.8
 MCPSC  1,3,26,3ka,17,30,B,10,14a,42 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0.3
 MCRKG  1,3,26,3ka,11,30,10,14a,18,28 30 19 0 0 0 0 1 * 0 0 1 * 0 0 0 0 32 4.0
 MCTSG  1,3,26,3ka,11,17,30,B,10,14a,28 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 2 0.3
 MDDSB  1,3,24,17,B,10,14a 0 0 0 0 0 0 2 1 0 0 1 0* 0 0 0 0 3 0.4
 MDGJH  1,3,24,11,10,14a,28,42 0 0 2 8 0 0 0 0 0 0 0 0 0 0 0 0 2 0.3
 MDNSB  1,3,24,3ka,17,B,10,14a 0 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 2 0.3
 MFBJG  1,3,24,26,10,14a,28 0 0 2 8 2 7 0 0 0 0 0 0 0 0 0 0 4 0.5
 MFDSB  1,3,24,26,17,B,10,14a 0 0 0 0 0 0 8 4 0 0 0 0 0 0 0 0 8 1.0
 MFGJG  1,3,24,26,11,10,14a,28 4 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0.5
 MFGJH  1,3,24,26,11,10,14a,28,42 8 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 1.0
 MFPSB  1,3,24,26,3ka,17,30,B,10,14a 2 1 0 0 0 0 2 1 0 0 0 0 0 0 0 0 4 0.5
 MFPSC  1,3,24,26,3ka,17,30,B,10,14a,42 2 1 0 0 3 11 24 11 5 7 27 10 4 20 0 0 65 8.2
 MFPSH  1,3,24,26,3ka,17,30,B,10,14a,28, 0 0 0 0 0 0 3 1 0 0 0 0 0 0 0 0 3 0.4
 MHDSB  1,3,16,26,17,B,10,14a 0 0 0 0 0 0 0 0 0 0 0 0 4 20 0 0 4 0.5
 MJBJH  1,3,16,24,10,14a,28,42 0 0 0 0 0 0 0 0 0 0 1 * 0 0 0 0 1 0.1
 MLDSB  1,3,9,17,B,10,14a 4 3 0 0 2 7 8 4 4 6 6 2 0 0 0 0 24 3.0
 SBDBG  1,2a,2c,17,28 0 0 0 0 0 0 4 2 0 0 0 0 0 0 0 0 4 0.5
 SBDDB  1,2a,2c,17,14a 0 0 0 0 0 0 1 * 2 3 1 * 0 0 0 0 4 0.5
 TBBGG  1,2a,2c,3,10,28 6 4 0 0 0 0 0 0 0 0 2 1 0 0 0 0 8 1.0
 TBBJG  1,2a,2c,3,10,14a,28 1 * 0 0 0 0 4 1 3 4 9 3 0 0 0 0 17 2.1
 TBDGH  1,2a,2c,3,17,10,28,42 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 2 0.3
 TBDJG  1,2a,2c,3,17,10,14a,28 0 0 0 0 0 0 0 0 2 3 4 2 0 0 0 0 6 0.8
 TBDSB  1,2a,2c,3,17,B,10,14a 3 2 0 0 0 0 3 1 0 0 1 * 0 0 0 0 7 0.9
 TBDSG  1,2a,2c,3,17,B,10,14a,28 0 0 0 0 0 0 0 0 0 0 1 * 0 0 0 0 1 0.1
 TBRKG  1,2a,2c,3,3ka,11,30,10,14a,18,28 12 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12 1.5
 TCBJG  1,2a,2c,3,26,10,14a,28 0 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 2 0.3
 TCRKG  1,2a,2c,3,26,3ka,11,30,10,14a,18,28 17 11 2 8 2 7 2 1 0 0 2 1 0 0 0 0 25 3.1
 TCTDB  1,2a,2c,3,26,3ka,11,17,30,14a 0 0 0 0 0 0 1 * 0 0 0 0 0 0 0 0 1 0.1
 TDBGG  1,2a,2c,3,24,10,28 2 1 0 0 4 15 10 5 8 12 10 4 0 0 0 0 34 4.3
 TDBGH  1,2a,2c,3,24,10,28,42 4 3 0 0 0 0 32 15 17 25 30 11 0 0 0 0 83 10.4
 TDBJG  1,2a,2c,3,24,10,14a,28 0 0 0 0 2 7 7 3 2 3 2 1 0 0 0 0 13 1.6
 TDBJH  1,2a,2c,3,24,10,14a,28,42 0 0 0 0 2 7 0 0 0 0 0 0 0 0 0 0 2 0.3
 TDDGH  1,2a,2c,3,24,17,10,28,42 0 0 0 0 0 0 0 0 0 0 9 3 0 0 0 0 9 1.1
 TDDJH  1,2a,2c,3,24,17,10,14a,28,42 0 0 0 0 0 0 0 0 0 0 9 3 0 0 0 0 9 1.1
 TDMJG  1,2a,2c,3,24,3ka,30,10,14a,28 0 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 2 0.3
 TFBGH  1,2a,2c,3,24,26,10,28,42 0 0 0 0 2 7 5 2 0 0 3 1 0 0 0 0 10 1.3
 TFBJG  1,2a,2c,3,24,26,10,14a,28 0 0 2 8 1 4 7 3 0 0 0 0 0 0 0 0 10 1.3
 TFDJH  1,2a,2c,3,24,26,17,10,14a,28,42 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0.3
 TFDSB  1,2a,2c,3,24,26,17,B,10,14a 0 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 2 0.3
 TGBGH  1,2a,2c,3,16,10,28,42 0 0 0 0 0 0 0 0 0 0 3 1 0 0 0 0 3 0.4
 TGBJG  1,2a,2c,3,16,10,14a,28 0 0 0 0 0 0 0 0 0 0 13 5 0 0 0 0 13 1.6
 TGDGG  1,2a,2c,3,16,17,10,28 0 0 0 0 0 0 0 0 0 0 11 4 0 0 0 0 11 1.4
 TGDJG  1,2a,2c,3,16,17,10,14a,28 0 0 0 0 0 0 0 0 0 0 1 * 0 0 0 0 1 0.1
 TGDSB  1,2a,2c,3,16,17,B,10,14a 0 0 0 0 2 7 0 0 0 0 1 * 0 0 0 0 3 0.4
 TGDSG  1,2a,2c,3,16,17,B,10,14a,28 0 0 0 0 0 0 0 0 0 0 8 3 0 0 0 0 8 1.0
 TGLJG  1,2a,2c,3,16,3ka,10,14a,28 4 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0.5
 THBJG  1,2a,2c,3,16,26,10,14a,28 0 0 0 0 0 0 0 0 2 3 2 1 0 0 0 0 4 0.5
 TJBGG  1,2a,2c,3,16,24,10,28 0 0 0 0 0 0 0 0 0 0 16 6 0 0 0 0 16 2.0
 TJBGH  1,2a,2c,3,16,24,10,28,42 2 1 0 0 0 0 0 0 0 0 12 4 0 0 0 0 14 1.8
 TJBJH  1,2a,2c,3,16,24,10,14a,28,42 0 0 0 0 0 0 1 * 3 4 5 2 0 0 0 0 9 1.1
 TJDGG  1,2a,2c,3,16,24,17,10,28 0 0 0 0 0 0 0 0 0 0 1 * 0 0 0 0 1 0.1
 TJDGH  1,2a,2c,3,16,24,17,10,28,42 0 0 0 0 0 0 0 0 0 0 32 12 0 0 0 0 32 4.0
 TKBGG  1,2a,2c,3,16,24,26,10,28 0 0 0 0 0 0 0 0 0 0 1 * 0 0 0 0 1 0.1
 TKBGH  1,2a,2c,3,16,24,26,10,28,42 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 2 0.3
 TKBJG  1,2a,2c,3,16,24,26,10,14a,28 0 0 0 0 0 0 0 0 0 0 4 2 0 0 0 0 4 0.5
 TKBJH  1,2a,2c,3,16,24,26,10,14a,28,42 0 0 0 0 0 0 1 * 0 0 2 1 0 0 0 0 3 0.4
 TKDJG  1,2a,2c,3,16,24,26,17,10,14a,280 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 2 0.3
 TLBDG  1,2a,2c,3,9,14a,28 0 0 0 0 2 7 0 0 0 0 0 0 0 0 0 0 2 0.3
 TLGJG  1,2a,2c,3,9,11,10,14a,28 4 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0.5
 TLRJG  1,2a,2c,3,9,3ka,11,30,10,14a,28 2 1 0 0 0 0 0 0 3 4 0 0 0 0 0 0 5 0.6
 TMGJG  1,2a,2c,3,9,26,11,10,14a,28 0 0 0 0 0 0 3 1 0 0 1 * 0 0 0 0 4 0.3
 TNRJJ  1,2a,2c,3,9,24,3ka,11,30,10,14a,28,41 9 6 4 17 0 0 17 8 4 6 2 1 0 0 0 0 36 4.5
 TNRJK  1,2a,2c,3,9,24,3ka,11,30,10,14a,28,41,42 2 1 0 0 0 0 30 13.6 1 2 14 5 0 0 0 0 47 5.9
 Total   158   24   27   220   68   272   20   8   797