Summary
The genetic relationships between three known genes for resistance to Puccinia hordei in barley, Pa 3, Pa5 and Pa 7, were re-examined because of conflicting reports in the literature. PA 3 was found to be independent of Pa 5 and Pa 7, but the latter two are linked with an estimated recombination value of 7.6±1.4%. Trisomic analysis confirmed Pa 7 to be on chromosome 3, but Pa 3 could not be associated with chromosomes 3 to 7 and, therefore, is inferred to be either on chromosome 1 or 2
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Tan, B.H. Verifying the genetic relationships between three leaf rust resistance genes in barley. Euphytica 27, 317–323 (1978). https://doi.org/10.1007/BF00039148
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DOI: https://doi.org/10.1007/BF00039148