Allelic Relationship between Lr9 and the Leaf Rust Resistance Gene in Kharchia Local Mutant of Wheat
Navjot Kaur Dhillon, Harcharan Singh Dhaliwal
DOI: 10.4236/ajps.2011.25083   PDF    HTML     4,108 Downloads   7,322 Views   Citations


To confirm allelic relationship between Lr9 and the leaf rust resistance gene in KLM4-3B, genetics of resistance was studied using crosses (WL711 + Lr9) × WL711 and (WL711 + LrKLM4-3B) × WL711. The F2 populations in cross (WL711 + Lr9) × WL711 and (WL711 + LrKLM4-3B) × WL711 segregated in ratio of 3:1 for disease reaction at seedling stage against pathotype 77-5 of leaf rust. This suggests that rust resistance in these stocks are under the control of single dominant genes. Further, to study allelic relationship betweenLr 9 and LrKLM4-3B, F2 population of the cross (WL711 + LrKLM4-3B) × (WL711 + Lr9) was studied. A segregation ratio of 15:1 implies that the two genes Lr9 and LrKLM4-3B are non-allelic genes.

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N. Dhillon and H. Dhaliwal, "Allelic Relationship between Lr9 and the Leaf Rust Resistance Gene in Kharchia Local Mutant of Wheat," American Journal of Plant Sciences, Vol. 2 No. 5, 2011, pp. 688-691. doi: 10.4236/ajps.2011.25083.

Conflicts of Interest

The authors declare no conflicts of interest.


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