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Mapping of quantitative trait loci controlling partial resistance against rust incited by Uromyces pisi (Pers.) Wint. in a Pisum fulvum L. intraspecific cross

AuthorsBarilli, Eleonora ; Satovic, Zlatko; Rubiales, Diego ; Torres, Ana M.
KeywordsRAPD marker
STS markers
Pea rust
Uromyces pisi
Issue DateSep-2010
PublisherKluwer Academic Publishers
CitationEuphytica 175(2): 151-159 (2010)
AbstractA quantitative trait loci (QTL) associated with resistance to pea rust, caused by the fungus Uromyces pisi (Pers.) Wint., has been identified in a F2 population derived from an intraspecific cross between two wild pea (Pisum fulvum L.) accessions, IFPI3260 (resistant) and IFPI3251 (susceptible). Both parental lines and all the segregating population displayed a fully compatible interaction (high infection type), which indicates absence of hypersensitive response. Nevertheless, differences on the percentage of symptomatic area of the whole plant (disease severity) were observed. A genetic map was developed covering 1283.3 cM and including 146 markers (144 random amplified polymorphic DNA (RAPDs) and two sequence tagged sites (STSs) markers) distributed in 9 linkage groups. A QTL explaining 63% of the total phenotypic variation was located in linkage group 3. RAPDs markers (OPY111316 and OPV171078) flanking this QTL should allow, after their conversion in SCARs, a reliable marker-assisted selection for rust resistance. © 2010 Springer Science+Business Media B.V.
Identifiersdoi: 10.1007/s10681-010-0141-z
issn: 0014-2336
e-issn: 1573-5060
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