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dc.contributor.authorCuesta-Marcos, Alfonso
dc.contributor.authorIgartua Arregui, Ernesto
dc.contributor.authorCiudad, F. J.
dc.contributor.authorCodesal, P.
dc.contributor.authorRussell, Joanne
dc.contributor.authorMolina Cano, José Luis
dc.contributor.authorMoralejo Vidal, Mª Angeles
dc.contributor.authorSzűcs, Péter
dc.contributor.authorGracia Gimeno, Ma. Pilar
dc.contributor.authorLasa Dolhagaray, José Manuel
dc.contributor.authorCasas Cendoya, Ana Maria
dc.date.accessioned2018-11-12T08:37:29Z
dc.date.available2018-11-12T08:37:29Z
dc.date.issued2008
dc.identifier.issn1380-3743
dc.identifier.urihttp://hdl.handle.net/10459.1/65070
dc.description.abstractHeading date is a key trait for the adaptation of barley to Mediterranean environments. We studied the genetic control of flowering time under Northern Spanish (Mediterranean) conditions using a new population derived from the spring/winter cross Beka/Mogador. A set of 120 doubled haploid lines was evaluated in the field, and under controlled temperature and photoperiod conditions. Genotyping was carried out with 215 markers (RFLP, STS, RAPD, AFLP, SSR), including markers for vernalization candidate genes, HvBM5 (Vrn-H1), HvZCCT (Vrn-H2), and HvT SNP22 (Ppd-H1). Four major QTL, and the interactions between them, accounted for most of the variation in both field (71–92%) and greenhouse trials (55–86%). These were coincident with the location of the major genes for response to vernalization and short photoperiod (Ppd-H2 on chromosome 1H). A major QTL, near the centromere of chromosome 2H was the most important under autumn sowing conditions. Although it is detected under all conditions, its action seems not independent from environmental cues. An epistatic interaction involving the two vernalization genes was detected when the plants were grown without vernalization and under long photoperiod. The simultaneous presence of the winter Mogador allele at the two loci produced a marked delay in heading date, beyond a mere additive effect. This interaction, combined with the effect of the gene responsive to short photoperiod, Ppd-H2, was found responsible of the phenomenon known as short-day vernalization, present in some of the lines of the population.ca_ES
dc.description.sponsorshipThis work was supported by the Spanish Ministry of Education and Research (Projects AGF98-0251-C03, AGL2001-2289, including a scholarship granted to Alfonso Cuesta-Marcos, and AGL2004-05311) and by the European Regional Development Fund.ca_ES
dc.language.isoengca_ES
dc.publisherSpringer Verlagca_ES
dc.relationMIECU/PN1996-1999/AGF98-0251-C03
dc.relationMICYT/PN2000-2003/AGL2001-2289
dc.relationMIECI/PN2004-2007/AGL2004-05311
dc.relation.isformatofVersió postprint del document publicat a https://doi.org/10.1007/s11032-007-9145-3ca_ES
dc.relation.ispartofMolecular Breeding, 2008, vol. 21, núm. 4, p. 455–471ca_ES
dc.rights(c) Springer Verlag, 2008ca_ES
dc.subjectBarleyca_ES
dc.subjectFlowering timeca_ES
dc.subjectPhotoperiodca_ES
dc.subjectQTLca_ES
dc.titleHeading date QTL in a spring × winter barley cross evaluated in Mediterranean environmentsca_ES
dc.typeinfo:eu-repo/semantics/articleca_ES
dc.identifier.idgrec011696
dc.type.versioninfo:eu-repo/semantics/acceptedVersionca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_ES
dc.identifier.doihttps://doi.org/10.1007/s11032-007-9145-3


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