Table 2. Races of Puccinia triticina
in the U.S. in 2003 determined by virulence to 16 near-isogenic
lines of Thatcher wheat with leaf rust-resistance genes. Area
1 includes the U.S. states of AL, AR, FL, GA, LA, MS, NC, and
SC; Area 2, DE, MD, NJ, NY, PA, VA, and WV; Area 3, IL, IN, KY,
MI, MO, OH, TN, and WI; Area 4, NM, OK, and TX; Area 5, CO, IA,
KS, and NE; Area 6, MN, MT, ND, SD, and WY; Area 7, CA, and UT;
and Area 8, ID, OR, and WA (see Fig.
4).
| Race |
Virulence
combination (ineffective Lr genes) |
Area
1 |
Area
2 |
Area
3 |
Area
4 |
Area
5 |
Area
6 |
Area
7 |
U.S.
Total |
| # |
% |
# |
% |
# |
% |
# |
% |
# |
% |
# |
% |
# |
% |
# |
% |
| BBBD |
14a |
0 |
0 |
1 |
10.0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
3.4 |
2 |
0.3 |
| BBBG |
10 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
6 |
2.2 |
0 |
0 |
6 |
1.0 |
| CBMT |
3,3ka,30,B,10,14a,18 |
3 |
5.4 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
3 |
0.5 |
| KBBG |
2a,2c,3,10 |
1 |
1.8 |
0 |
0 |
0 |
0 |
0 |
0 |
3 |
4.1 |
16 |
5.9 |
0 |
0 |
20 |
3.4 |
| KBBJ |
2a,2c,3,10,14a |
0 |
0 |
0 |
0 |
1 |
5.6 |
0 |
0 |
1 |
1.4 |
7 |
2.6 |
0 |
0 |
9 |
1.6 |
| KCBJ |
2a,2c,3,26,10,14a |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
1.4 |
3 |
1.1 |
0 |
0 |
4 |
0.7 |
| KFBJ |
2a,2c,3,24,26,10,14a |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0.8 |
0 |
0 |
2 |
0.7 |
0 |
0 |
3 |
0.5 |
| KGBG |
2a,2c,3,16,10 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
10 |
3.7 |
2 |
6.9 |
12 |
2.1 |
| MBBJ |
1,3,10,14a |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
1.4 |
0 |
0 |
4 |
13.8 |
5 |
0.9 |
| MBBK |
1,3,10,14a,18 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
6.9 |
2 |
0.3 |
| MBDS |
1,3,17,B,10,14a |
8 |
14.3 |
0 |
0 |
1 0 |
55.6 |
37 |
30.3 |
18 |
24.7 |
28 |
10.4 |
8 |
27.6 |
109 |
18.8 |
| MBGJ |
1,3,11,10,14a |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0.2 |
| MBRJ |
1,3,3ka,11,30,10,14a |
2 |
3.6 |
0 |
0 |
0 |
0 |
5 |
4.1 |
5 |
4.1 |
1 |
0.4 |
0 |
0 |
9 |
1.6 |
| MBRK |
1,3,3ka,11,30,10,14a,18 |
4 |
7.1 |
0 |
0 |
0 |
0 |
2 |
1.6 |
0 |
0 |
0 |
0 |
0 |
0 |
6 |
1.0 |
| MBRK |
1,3,3ka,11,30,B,10,14a,18 |
1 |
1.8 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0.2 |
| MCBJ |
1,3,26,10,14a |
0 |
0 |
0 |
0 |
1 |
5.6 |
1 |
0.8 |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
0.3 |
| MCDS |
1,3,26,17,B,10,14a |
11 |
19.6 |
0 |
0 |
2 |
11.1 |
12 |
9.8 |
13 |
17.8 |
19 |
7.0 |
9 |
31.0 |
67 |
11.6 |
| MCJS |
1,3,26,11,17,B,10,14a |
0 |
0 |
6 |
60.0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
6 |
1.0 |
| MCRJ |
1,3,26,3ka,11,30,10,14a |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
1.6 |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
0.3 |
| MCRK |
1,3,26,3ka,11,30,10,14a,18 |
6 |
10.7 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
2.7 |
0 |
0 |
8 |
1.4 |
| MDBJ |
1,3,24,10,14a |
2 |
3.6 |
0 |
0 |
0 |
0 |
3 |
2.5 |
0 |
0 |
0 |
0 |
0 |
0 |
5 |
0.9 |
| MDRJ |
1,3,24,3ka,11,30,10,14a |
0 |
0 |
0 |
0 |
0 |
0 |
4 |
3.3 |
0 |
0 |
0 |
0 |
0 |
0 |
4 |
0.7 |
| MJBJ |
1,3,16,24,10,14a |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
1.4 |
1 |
0.4 |
0 |
0 |
2 |
0.3 |
| NBBK |
1,2c,10,14a,18 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0.4 |
0 |
0 |
1 |
0.2 |
| SBDB |
1,2a,2c,17 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
2.7 |
0 |
0 |
0 |
0 |
2 |
0.3 |
| SBDD |
1,2a,2c,17,14a |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
3 |
4.1 |
0 |
0 |
0 |
0 |
3 |
0.5 |
| SBDJ |
1,2a,2c,17,10,14a |
0 |
0 |
0 |
0 |
0 |
0 |
3 |
2.5 |
1 |
1.4 |
0 |
0 |
0 |
0 |
4 |
0.7 |
| TBBD |
1,2a,2c,3,14a |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
1.4 |
0 |
0 |
0 |
0 |
1 |
0.2 |
| TBBJ |
1,2a,2c,3,10,14a |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
1.6 |
6 |
8.2 |
48 |
17.8 |
0 |
0 |
56 |
9.7 |
| TBBS |
1,2a,2c,3,B,10,14a |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
8 |
3.0 |
0 |
0 |
8 |
1.4 |
| TBDF |
1,2a,2c,3,17,14a,18 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
0.7 |
0 |
0 |
2 |
0.3 |
| TBDS |
1,2a,2c,3,17,B,10,14a |
0 |
0 |
0 |
0 |
4 |
22.2 |
8 |
6.6 |
6 |
8.2 |
19 |
7.0 |
0 |
0 |
37 |
6.4 |
| TCBJ |
1,2a,2c,3,26,10,14a |
1 |
1.8 |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
2.7 |
0 |
0 |
0 |
0 |
3 |
0.5 |
| TCDS |
1,2a,2c,3,26,17,B,10,14a |
1 |
1.8 |
0 |
0 |
0 |
0 |
6 |
4.9 |
4 |
5.5 |
10 |
3.7 |
0 |
0 |
21 |
3.6 |
| TCTD |
1,2a,2c,3,26,3ka,11,17,30,14a |
0 |
0 |
2 |
20.0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
0.3 |
| TDBJ |
1,2a,2c,3,24,10,14a |
1 |
1.8 |
0 |
0 |
0 |
0 |
1 |
0.8 |
2 |
2.7 |
2 |
0.7 |
0 |
0 |
6 |
1.0 |
| TFBG |
1,2a,2c,3,24,26,10 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
4 |
1.5 |
0 |
0 |
4 |
0.7 |
| TFBJ |
1,2a,2c,3,24,26,10,14a |
2 |
3.6 |
0 |
0 |
0 |
0 |
4 |
3.3 |
3 |
4.1 |
1 |
0.4 |
2 |
6.9 |
12 |
2.1 |
| TGBJ |
1,2a,2c,3,16,10,14a |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
1.4 |
7 |
2.6 |
0 |
0 |
8 |
1.4 |
| TGDS |
1,2a,2c,3,16,17,B,10,14a |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0.8 |
0 |
0 |
7 |
2.6 |
0 |
0 |
8 |
1.4 |
| THBJ |
1,2a,2c,3,16,26,10,14a |
0 |
0 |
0 |
0 |
0 |
0 |
10 |
8.2 |
2 |
2.7 |
56 |
20.7 |
0 |
0 |
68 |
11.7 |
| THMJ |
1,2a,2c,3,16,26,3ka,30,10,14a |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0.8 |
0 |
0 |
1 |
0.4 |
0 |
0 |
2 |
0.3 |
| TLGJ |
1,2a,2c,3,9,11,10,14a |
13 |
23.2 |
0 |
0 |
0 |
0 |
2 |
1.6 |
0 |
0 |
0 |
0 |
0 |
0 |
15 |
2.6 |
| TLGK |
1,2a,2c,3,9,11,10,14a |
0 |
0 |
1 |
10.0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0.2 |
| TNBJ |
1,2a,2c,3,9,11,10,14a |
0 |
0 |
0 |
0 |
0 |
0 |
3 |
2.5 |
0 |
0 |
0 |
0 |
0 |
0 |
3 |
0.5 |
| TNRJ |
1,2a,2c,3,9,24,3ka,11,30,10,14a |
0 |
0 |
0 |
0 |
0 |
0 |
14 |
11.5 |
1 |
1.4 |
9 |
3.3 |
1 |
3.4 |
25 |
4.3 |
| Total |
|
56 |
|
10 |
|
18 |
|
122 |
|
73 |
|
270 |
|
29 |
|
580 |
|