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dc.contributor.author
Figlan, Sandiswa  
dc.contributor.author
Hlongoane, Tsepiso  
dc.contributor.author
Bainotti, Carlos Tomas  
dc.contributor.author
Campos, Pablo  
dc.contributor.author
Vanzetti, Leonardo Sebastián  
dc.contributor.author
Tranquilli, Gabriela Edith  
dc.contributor.author
Tsilo, Toi John  
dc.date.available
2024-09-04T11:35:31Z  
dc.date.issued
2024-12  
dc.identifier.citation
Figlan, Sandiswa; Hlongoane, Tsepiso; Bainotti, Carlos Tomas; Campos, Pablo; Vanzetti, Leonardo Sebastián; et al.; Bread wheat cultivar Popo harbors QTLs for seedling and adult plant resistance to leaf rust in South African and Argentine environments; Elsevier; Plant Stress; 14; 12-2024; 1-10  
dc.identifier.issn
2667-064X  
dc.identifier.uri
http://hdl.handle.net/11336/243546  
dc.description.abstract
Leaf rust, caused by the fungus Puccinia triticina Eriks (Pt), is a destructive disease affecting wheat (Triticum aestivum L.) production in many countries, and a serious threat to food security. As a result, several breeding programs have included leaf rust resistance as an important trait. The discovery and identification of new resistance genes that could aid in incorporating durable or long-lasting leaf rust resistance into wheat is fundamental in these breeding programs. The present study aimed to identify quantitative trait loci (QTLs) for leaf rust resistance in 127 recombinant inbred lines (RIL) developed from the cross between the resistant wheat cultivar Popo and the susceptible cultivar Kariega. The RIL population and parental lines were phenotyped for leaf rust infection type and severity at seedling and adult plant stage, respectively. The former in the greenhouse (in Argentina) and the latter in multiple field test environments comprising 3 locations in South Africa (in Tygerhoek in the Western Cape Province during the 2014, 2015, 2017 and 2018 cropping seasons; Clarens during 2014, 2016 and 2017 cropping seasons and in Bethlehem in the Free State Province during 2017 cropping season) and in 1 location in Argentina (during the 2017 and 2018 cropping seasons in Marcos Juárez, Córdoba Province). The population was genotyped using genotyping-by-sequencing. A total of 12,080 silicoDArT and 2,669 SNP markers were used for QTL analysis. In total, 25 putative QTLs for resistance to leaf rust at seedling and adult plant stages were identified, including 5 QTLs for seedling and 20 QTLs for adult plant resistance (APR). Interestingly, both Popo and Kariega contributed with alleles for resistance. Significant loci for reducing leaf rust infection at seedling stage were designated QLr.arc-1A, QLr.arc-2B, QLr.arc-5B, QLr.arc-6A and QLr.arc-6D. Three minor QTLs derived from Popo designated as QLr.arc-1B1, QLr.arc-2D and QLr.arc-3D were also detected from the field tests, explaining 5–10%, 10–16% and 5–7% of the phenotypic variance, respectively. The identified QTLs and their closely linked silicoDArT and SNP-based markers can be used for fine mapping and candidate gene discovery in wheat breeding programs targeting durable leaf rust resistance.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/  
dc.subject
LEAF RUST  
dc.subject
QTL MAPPING  
dc.subject
BREEDING  
dc.subject
GENOTYPING BY SEQUENCING  
dc.subject.classification
Agricultura  
dc.subject.classification
Agricultura, Silvicultura y Pesca  
dc.subject.classification
CIENCIAS AGRÍCOLAS  
dc.title
Bread wheat cultivar Popo harbors QTLs for seedling and adult plant resistance to leaf rust in South African and Argentine environments  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2024-09-02T12:05:46Z  
dc.journal.volume
14  
dc.journal.pagination
1-10  
dc.journal.pais
Países Bajos  
dc.description.fil
Fil: Figlan, Sandiswa. University of South Africa; Sudáfrica  
dc.description.fil
Fil: Hlongoane, Tsepiso. No especifíca;  
dc.description.fil
Fil: Bainotti, Carlos Tomas. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Córdoba. Estación Experimental Agropecuaria Marcos Juárez; Argentina  
dc.description.fil
Fil: Campos, Pablo. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Bordenave; Argentina  
dc.description.fil
Fil: Vanzetti, Leonardo Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Córdoba. Estación Experimental Agropecuaria Marcos Juárez; Argentina  
dc.description.fil
Fil: Tranquilli, Gabriela Edith. Instituto Nacional de Tecnología Agropecuaria; Argentina  
dc.description.fil
Fil: Tsilo, Toi John. University of South Africa; Sudáfrica  
dc.journal.title
Plant Stress  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S2667064X24002239  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.stress.2024.100570