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Published online 20 May 2008
Published in Crop Sci 48:1037-1047 (2008)
© 2008 Crop Science Society of America
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Inheritance of Leaf Rust Resistance in the CIMMYT Wheat Weebill 1

Julia X. Zhanga, Ravi P. Singhb, James A. Kolmerc, Julio Huerta-Espinod, Yue Jinc and James A. Andersona,*

a Dep. of Agronomy and Plant Genetics, Univ. of Minnesota, St. Paul, MN 55108
b International Maize and Wheat Improvement Center (CIMMYT), Apdo Postal 6-641, 06600, Mexico D.F., Mexico
c USDA-ARS, Cereal Disease Laboratory, St. Paul, MN 55108
d Campo Experimental Valle de Mexico, INIFAP, Apdo. Postal 10, Chapingo, 56230 Edo de Mexico, Mexico


Figure 1
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  		Figure 1. Frequency distributions of leaf rust severities of F4- (F4:5 and F4:6) and F5-(F5:7) derived recombinant inbred lines (RILs) of Jupateco 73S/Weebill 1 evaluated in Mexico (A) and St. Paul (B). F1 data was collected in Ciudad Obregon in 2003. Data of F4-derived RILs planted in Mexico were based on means of F4:5 in 2003 and F4:6 in 2004 in Ciudad Obregon. Data of F5:7 RILs in Mexico were based on means of Ciudad Obregon in 2005 and El Batan in 2006 with two replications in each year. Data from St. Paul were collected in 2005 with one replication.

 

Figure 2
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  		Figure 2. Genetic distance in cM between two simple sequence repeat markers and the leaf rust resistance gene Lr17a. The linkage map was constructed using 129 F5:7 recombinant inbred lines of Jupateco 73S/Weebill 1. Names of markers and the gene are shown on the right.

 




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