Molecular mapping of the rust resistance gene R ( 4 ) to a large NBS-LRR cluster on linkage group 13 of sunflower.
Qi LL, Hulke BS, Vick BA, Gulya TJ. Molecular mapping of the rust resistance gene R ( 4 ) to a large NBS-LRR cluster on linkage group 13 of sunflower. Theor Appl Genet. 2011 Jul; 123(2):351-8.