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Localization of quantitative trait loci (QTL) for agronomic important characters by the use of a RFLP map in barley (Hordeum vulgare L.)

Details zur Publikation
Backes, G.; Graner, A.; Foroughi-Wehr, B.; Fischbeck, G.; Wenzel, G.; Jahoor, A.
TAG Theoretical and Applied Genetics

Zusammenfassung, Abstract
Two hundred and fifty doubled haploid lines were studied from a cross between two 2-row winter barley varieties. The lines were evaluated for several characters in a field experiment for 3 years on two locations with two replications. From a total of 431 RFLP probes 50 were found to be polymorphic and subsequently used to construct a linkage map. Quantitative trait loci (QTLs) were determined and localized for resistance against Rhynchosporium secalis and Erysiphe graminis, for lodging, stalk breaking and ear breaking tendency, for the physical state before harvest, plant height, heading date, several kernel parameters and kernel yield. The heritability of the traits ranged from 0.56 to 0.89. For each trait except for kernel thickness, QTLs have been localized that explain 5-52{\%} of the genetic variance. Transgressive segregation occurred for all of the traits studied.

Agronomic traits, Agronomische Eigenschaften, Barley, Barley powdery mildew, Blumeria graminis, Disease resistance, Erysiphe graminis, Gerste, Gerstenmehltau, Grain weight, Heading date, Heritabilität, Heritability, Hordeum, Hordeum vulgare, Kernel shape, Kernel weight, Kernel yield, Kopplungskarte, Kornertrag, Kornform, Korngewicht, Krankheitsresitenz, Lager, Linkage map, Lodging, Pflanzenhöhe, Plant height, QTL, QTL Analyse, QTL localisation, Quantitative Eigenschaft, Quantitative trait locus, Resistance, RFLP marker, Rhynchosporium secalis, Scald, Yield, Zeitpunkt des Ährenschiebens

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Zuletzt aktualisiert 2019-25-07 um 10:57