Mining sources of resistance to durum leaf rust among tetraploid wheat accessions from CIMMYT’s Germplasm Bank

dc.creatorHuerta-Espino, J.
dc.creatorSingh, R.P.
dc.creatorVillaseñor Mir, H.E.
dc.creatorAmmar, K.
dc.date2023-01-19T01:20:12Z
dc.date2023-01-19T01:20:12Z
dc.date2023
dc.date.accessioned2023-07-17T20:10:13Z
dc.date.available2023-07-17T20:10:13Z
dc.identifierhttps://hdl.handle.net/10883/22439
dc.identifier10.3390/plants12010049
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7514184
dc.descriptionA collection of 482 tetraploid wheat accessions from the CIMMYT Germplasm Bank was screened in the greenhouse for resistance to leaf rust disease caused by the fungus Puccinia triticina E. The accessions were screened against two races CBG/BP and BBG/BP in the field at two locations: against race CBG/BP at the Norman E. Borlaug Experimental Station (CENEB) located in the Yaqui Valley in the northern state of Sonora in Mexico during the 2014–2015 growing season; and against race BBG/BP at CIMMYT headquarters in El Batan, Texcoco, in the state of Mexico in the summer of 2015. Among the accessions, 79 durum genotypes were identified, of which 68 continued demonstrating their resistance in the field (past the seedling stage) against the two leaf rust races. An additional set of 41 genotypes was susceptible at the seedling stage, but adult plant race-specific resistance was identified in the field. The 79 seedling-resistant genotypes were tested against 15 different leaf rust races at the seedling stage to measure the usefulness of their resistance in a breeding program. Among the 79 accessions tested, 35 were resistant to all races used in the tests. Two sample sources, CIMMYT (18/35) pre-breeding germplasm and Ethiopian landraces (17/35), showed seedling resistance to all races tested except for seven landraces from Ethiopia, which became susceptible to the Cirno race identified in 2017.
dc.languageEnglish
dc.publisherMDPI
dc.relationhttps://www.mdpi.com/article/10.3390/plants12010049/s1
dc.rightsCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose
dc.rightsOpen Access
dc.source1
dc.source12
dc.source2223-7747
dc.sourcePlants
dc.source49
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectDurum Wheat
dc.subjectPuccinia triticina
dc.subjectSeedling Resistance
dc.subjectAdult Plant Race-Specific Resistance
dc.subjectHARD WHEAT
dc.subjectLANDRACES
dc.subjectPUCCINIA RECONDITA
dc.subjectSEEDLINGS
dc.subjectADULT PLANT RESISTANCE
dc.subjectWheat
dc.titleMining sources of resistance to durum leaf rust among tetraploid wheat accessions from CIMMYT’s Germplasm Bank
dc.typeArticle
dc.typePublished Version
dc.coverageBasel (Switzerland)


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