The genetics of Ug99 stem rust resistance in spring wheat variety ‘Linkert‘

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cg.contributor.affiliationUniversity of Minnesotaen_US
cg.contributor.affiliationKenya Agricultural and Livestock Research Organizationen_US
cg.contributor.affiliationDebre Zeit Agricultural Research Centeren_US
cg.contributor.affiliationInternational Maize and Wheat Improvement Centeren_US
cg.contributor.affiliationUnited States Department of Agricultureen_US
cg.contributor.donorUnited States Department of Agricultureen_US
cg.contributor.donorCGIAR Trust Funden_US
cg.contributor.initiativeAccelerated Breedingen_US
cg.creator.identifierPrabin Bajgain: 0000-0002-3093-5582en_US
cg.creator.identifiersridhar bhavani: 0000-0002-4091-2608en_US
cg.creator.identifierJames Anderson: 0000-0003-4655-6517en_US
cg.creator.identifierMatthew Rouse: 0000-0001-7763-8203en_US
cg.howPublishedFormally Publisheden_US
cg.identifier.doihttps://doi.org/10.3389/fpls.2024.1343148en_US
cg.identifier.urlhttps://hdl.handle.net/10883/23128en_US
cg.isijournalISI Journalen_US
cg.issn1664-462Xen_US
cg.journalFrontiers in Plant Scienceen_US
cg.placeSwitzerlanden_US
cg.reviewStatusPeer Reviewen_US
cg.subject.actionAreaGenetic Innovationen_US
cg.subject.impactAreaNutrition, health and food securityen_US
cg.volume15en_US
dc.contributor.authorEdae, Erena A.en_US
dc.contributor.authorKosgey, Zennah C.en_US
dc.contributor.authorBajgain, Prabinen_US
dc.contributor.authorNdung'u, Kimani C.en_US
dc.contributor.authorGemechu, Ashenafen_US
dc.contributor.authorBhavani, Sridharen_US
dc.contributor.authorAnderson, James A.en_US
dc.contributor.authorRouse, Matthew N.en_US
dc.date.accessioned2024-11-21T15:00:47Zen_US
dc.date.available2024-11-21T15:00:47Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/162519en_US
dc.titleThe genetics of Ug99 stem rust resistance in spring wheat variety ‘Linkert‘en_US
dcterms.abstractWheat stem rust caused by Puccinia graminis f. sp. tritici (Pgt) threatens wheat production worldwide. The objective of this study was to characterize wheat stem rust resistance in ‘Linkert’, a variety with adult plant resistance effective to emerging wheat stem rust pathogen strain Ug99. Two doubled haploid (DH) populations and one recombinant inbred line (RIL) population were developed with ‘Linkert’ as a stem rust resistant parent. Hard red spring wheat variety ‘Forefront’ and genetic stock ‘LMPG’ were used as stem rust susceptible parents of the DH populations. Breeding line ‘MN07098-6’ was used as a susceptible parent of the RIL population. Both DH and RIL populations with their parents were evaluated both at the seedling stage and in the field against Pgt races. Genotyping data of the DH populations were generated using the wheat iSelect 90k SNP assay. The RIL population was genotyped by genotyping-by-sequencing. We found QTL consistently associated with wheat stem rust resistance on chromosome 2BS for the Linkert/Forefront DH population and the Linkert/MN07098-6 RIL population both in Ethiopia and Kenya. Additional reliable QTL were detected on chromosomes 5BL (125.91 cM) and 4AL (Sr7a) for the Linkert/LMPG population in Ethiopia and Kenya. Different QTL identified in the populations reflect the importance of examining the genetics of resistance in populations derived from adapted germplasm (Forefront and MN07098-6) in addition to a genetic stock (LMPG). The associated markers in this study could be used to track and select for the identified QTL in wheat breeding programs.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.available2024-03-07en_US
dcterms.bibliographicCitationEdae, E. A., Kosgey, Z. C., Bajgain, P., Ndung’u, K. C., Gemechu, A., Bhavani, S., Anderson, J., & Rouse, M. N. (2024). The genetics of Ug99 stem rust resistance in spring wheat variety ‘Linkert‘. Frontiers in Plant Science, 15, 1343148. https://doi.org/10.3389/fpls.2024.1343148en_US
dcterms.extent1343148en_US
dcterms.issued2024-03-07en_US
dcterms.languageenen_US
dcterms.licenseCC-BY-4.0en_US
dcterms.publisherFrontiers Media SAen_US
dcterms.subjectdisease resistanceen_US
dcterms.subjectquantitative trait locien_US
dcterms.subjectstem rusten_US
dcterms.subjectwheaten_US
dcterms.typeJournal Articleen_US

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