Mapping of resistance genes to brown rust in 1R chromosome of rye (Secale cereale L.)

O.A. Baranova, A.P. Dmitriev, A.V. Voylocov and O.V. Solodukhina
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O.A. Baranova: All-Russian Institute of Plant Protection, St.-Petersburg-Pushkin 196608, Russia
A.P. Dmitriev: All-Russian Institute of Plant Protection, St.-Petersburg-Pushkin 196608, Russia
A.V. Voylocov: All-Russian Institute of Plant Protection, St.-Petersburg-Pushkin 196608, Russia
O.V. Solodukhina: All-Russian Institute of Plant Protection, St.-Petersburg-Pushkin 196608, Russia

Plant Protection Science, 2002, vol. 38, issue SI2-6thConfEFPP, 588-589

Abstract: Five resistance genes to single-pustule isolates Nos. 12, 81,108 and 7 of brown rust were mapped on 1R chromosome of rye using two different F2 populations. Under segregation analysis it was found linkage between genes controlling resistance to single-pustule isolates No. 12, 81, 108 and 25 and isozyme locus Prx7, which to be localized on chromosome 1R. The recombination frequencies are 0.32, 0.28, 0.29 and 0.32 correspondingly. Also we were found linkage between Prx7 and gene, controlling resistance to single-pustule isolate No. 7. Recombination frequency in this case was equal 0.10 and 0.29 in dependence on analyzing hybrids.

Keywords: genetic mapping; resistance genes; brown rust; Isozyme; Prx7; Secale cereale L.; 1R chromosome (search for similar items in EconPapers)
Date: 2002
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DOI: 10.17221/10562-PPS

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