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Ponce-Molina LJ, Huerta-Espino J, Singh RP, Basnet BR, Alvarado G, Randhawa MS, Lan CX, Aguilar-Rincón VH, Lobato-Ortiz R, García-Zavala JJ. Characterization of Leaf Rust and Stripe Rust Resistance in Spring Wheat 'Chilero'. Plant Dis 2018; 102:421-427. [PMID: 30673516 DOI: 10.1094/pdis-11-16-1545-re] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Since 1984, the 'Chilero' spring wheat line developed by CIMMYT has proven to be highly resistant to leaf rust and stripe rust. Amid efforts to understand the basis of resistance of this line, a recombinant inbred line (RIL) population derived from a cross between Avocet and Chilero was studied. The parents and RILs were characterized in field trials for leaf rust and stripe rust in three locations in Mexico between 2012 and 2015 and genotyped with DArT-array, DArT-GBS, and SSR markers. A total of 6,168 polymorphic markers were used to construct genetic linkage maps. Inclusive composite interval mapping detected four colocated resistance loci to both rust diseases and two stripe rust resistant loci in the Avocet × Chilero population. Among these, the quantitative trait locus (QTL) on chromosome 1BL was identified as a pleotropic adult plant resistance gene Lr46/Yr29, whereas QLr.cim-5DS/QYr.cim-5DS was a newly discovered colocated resistance locus to both rust diseases in Chilero. Additionally, one new stripe rust resistance locus on chromosome 7BL was mapped in the current population. Avocet also contributed two minor colocated resistance QTLs situated on chromosomes 1DL and 4BS. The flanking SNP markers can be converted to breeder friendly Kompetitive Allele Specific PCR (KASP) markers for wheat breeding programs.
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Affiliation(s)
- L J Ponce-Molina
- National Institute of Agricultural and Livestock Researches (INIAP-Ecuador), Santa Catalina Experimental Station, Quito, Ecuador; and Colegio de Postgraduados (CP), Campus Montecillo, Montecillo, Texcoco 56230, State of México, México
| | - J Huerta-Espino
- Campo Experimental Valle de México INIFAP, 56230 Chapingo, State of México, México
| | - R P Singh
- International Maize and Wheat Improvement Center (CIMMYT), 56237 México, DF, México
| | - B R Basnet
- International Maize and Wheat Improvement Center (CIMMYT), 56237 México, DF, México
| | - G Alvarado
- International Maize and Wheat Improvement Center (CIMMYT), 56237 México, DF, México
| | - M S Randhawa
- International Maize and Wheat Improvement Center (CIMMYT), 56237 México, DF, México
| | - C X Lan
- International Maize and Wheat Improvement Center (CIMMYT), 56237 México, DF, México
| | - V H Aguilar-Rincón
- Colegio de Postgraduados (CP), Campus Montecillo, Montecillo, Texcoco 56230, State of México, México
| | - R Lobato-Ortiz
- Colegio de Postgraduados (CP), Campus Montecillo, Montecillo, Texcoco 56230, State of México, México
| | - J J García-Zavala
- Colegio de Postgraduados (CP), Campus Montecillo, Montecillo, Texcoco 56230, State of México, México
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Ren Y, Singh RP, Basnet BR, Lan CX, Huerta-Espino J, Lagudah ES, Ponce-Molina LJ. Identification and Mapping of Adult Plant Resistance Loci to Leaf Rust and Stripe Rust in Common Wheat Cultivar Kundan. Plant Dis 2017; 101:456-463. [PMID: 30677352 DOI: 10.1094/pdis-06-16-0890-re] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Leaf rust (LR) and stripe rust (YR) are important diseases of wheat worldwide. We used 148 recombinant inbred lines (RIL) from the cross of Avocet × Kundan for determining and mapping the genetic basis of adult plant resistance (APR) loci. The population was phenotyped LR and YR for three seasons in field trials conducted in Mexico and genotyped with the diversity arrays technology sequencing (DArT-Seq) and simple sequence repeat markers. The final genetic map was constructed using 2,937 polymorphic markers with an average distance of 1.29 centimorgans between markers. Inclusive composite interval mapping identified two co-located APR quantitative trait loci (QTL) for LR and YR, two LR QTL, and three YR QTL. The co-located resistance QTL on chromosome 1BL corresponded to the pleiotropic APR gene Lr46/Yr29. QLr.cim-2BL, QYr.cim-2AL, and QYr.cim-5AS could be identified as new resistance loci in this population. Lr46/Yr29 contributed 49.5 to 65.1 and 49.2 to 66.1% of LR and YR variations, respectively. The additive interaction between detected QTL showed that LR severities for RIL combining four QTL ranged between 5.3 and 25.8%, whereas the lowest YR severities were for RIL carrying QTL on chromosomes 1BL + 2AL + 6AL. The high-density DArT-Seq markers across chromosomes can be used in fine mapping of the targeted loci and development SNP markers.
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Affiliation(s)
- Y Ren
- Mianyang Institute of Agricultural Science/Mianyang Branch of National Wheat Improvement Center, Mianyang 621023, Sichuan, China
| | - R P Singh
- International Maize and Wheat Improvement Center (CIMMYT), 06600 México D.F., Mexico
| | - B R Basnet
- International Maize and Wheat Improvement Center (CIMMYT), 06600 México D.F., Mexico
| | - C X Lan
- International Maize and Wheat Improvement Center (CIMMYT), 06600 México D.F., Mexico
| | - J Huerta-Espino
- Campo Experimental Valle de México INIFAP, 56230 Chapingo, Edo. de México, Mexico
| | - E S Lagudah
- CSIRO Agriculture, Canberra, ACT 2601, Australia
| | - L J Ponce-Molina
- National Institute of Agricultural and Livestock Researches (INIAP-Ecuador), Santa Catalina Experimental Station, Quito, Ecuador
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Calvo-Salazar V, Singh RP, Huerta-Espino J, Cruz-Izquierdo S, Lobato-Ortiz R, Sandoval-Islas S, Vargas-Hernández M, German S, Silva P, Basnet BR, Lan CX, Herrera-Foessel SA. Genetic Analysis of Resistance to Leaf Rust and Yellow Rust in Spring Wheat Cultivar Kenya Kongoni. Plant Dis 2015; 99:1153-1160. [PMID: 30695943 DOI: 10.1094/pdis-07-14-0718-re] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The Kenyan wheat (Triticum aestivum L.) 'Kenya Kongoni' exhibits high levels of adult plant resistance (APR) to leaf rust (LR) and yellow rust (YR). We determined the genomic regions associated with LR and YR resistance in a population of 148 recombinant inbred lines generated from a cross between 'Avocet-YrA' and Kenya Kongoni. Field experiments to characterize APR to LR and YR were conducted in four and two Mexican or Uruguayan environments, respectively. A linkage map was constructed with 438 diversity arrays technology and 16 simple-sequence repeat markers by JoinMap 4.1 software. Genetic analyses showed that resistance to both rusts was determined by four to five APR genes, including Lr46/Yr29 and Sr2/Lr27/Yr30. Quantitative trait loci (QTL) analysis indicated that pleiotropic APR loci QYLr.cim-1BL corresponding to Lr46/Yr29 and QYLr.cim-7BL that is a putative novel QTL accounted for 5 to 57% and 12 to 35% of the phenotypic variation for resistance to LR and YR, respectively. These loci, in combination with another three LR QTL and two YR QTL, respectively, conferred high levels of resistance to both LR and YR in wheat under Mexican and Uruguayan environments. Among other detected QTL, QLr.cim-1DS, QLr.cim-2BL, and QYLr.icm-7BL may be new loci for APR to both rusts in common wheat.
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Affiliation(s)
- V Calvo-Salazar
- International Maize and Wheat Improvement Center (CIMMYT), Apdo. Postal 6-641, 06600 Mexico D.F., Mexico and Colegio de Post-graduados-Genética, Campus Montecillo, Carretera Mexico-Texcoco Km 36.5, Montecillo, Texcoco 56230, Estado de Mexico
| | | | - J Huerta-Espino
- Campo Experimental Valle de Mexico INIFAP, Apdo. Postal 10, 56230, Chapingo, Edo. de Mexico, Mexico
| | | | | | | | | | - S German
- National Institute of Agricultural Research (INIA), Route 50 km 11.500, CP 70000, Colonia, Uruguay
| | - P Silva
- National Institute of Agricultural Research (INIA), Route 50 km 11.500, CP 70000, Colonia, Uruguay
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Basnet BR, Singh RP, Herrera-Foessel SA, Ibrahim AMH, Huerta-Espino J, Calvo-Salazar V, Rudd JC. Genetic Analysis of Adult Plant Resistance to Yellow Rust and Leaf Rust in Common Spring Wheat Quaiu 3. Plant Dis 2013; 97:728-736. [PMID: 30722591 DOI: 10.1094/pdis-02-12-0141-re] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Identifying and utilizing rust resistance genes in wheat has been hampered by the continuous and rapid emergence of new pathogen races. A major focus of many wheat breeding programs is achieving durable adult plant resistance (APR) to yellow (stripe) rust (YR) and leaf (brown) rust (LR), caused by Puccinia striiformis and P. triticina, respectively. This study aimed to determine the genetic basis of resistance to YR and LR in the common spring wheat 'Quaiu 3'. To that end, we evaluated 198 F5 recombinant inbred lines (RILs), derived from a cross of susceptible 'Avocet-YrA' with Quaiu 3, for APR to LR and YR in artificially inoculated field trials conducted in Mexico during the 2009 and 2010 growing seasons. High narrow-sense heritability (h2) estimates, ranging between 0.91 and 0.95, were obtained for both LR and YR disease severities for both years. The quantitative and qualitative approaches used to estimate gene numbers showed that, in addition to known resistance genes, there are at least two to three APR genes associated with LR and YR resistance in the RIL population. The moderately effective race-specific resistance gene Lr42 and the pleiotropic slow-rusting APR gene Lr46/Yr29 were found to interact with additional unidentified APR genes. The unidentified APR genes should be of particular interest for further characterization through molecular mapping, and for utilization by wheat breeding programs.
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Affiliation(s)
- B R Basnet
- International Maize and Wheat Improvement Center (CIMMYT) Apdo. Postal 6-641, C.P. 06600, D.F., Mexico and Department of Soil and Crop Sciences, Texas A&M University, College Station 77843
| | | | | | - A M H Ibrahim
- Department of Soil and Crop Sciences, Texas A&M University
| | - J Huerta-Espino
- Campo Experimental Valle de Mexico INIFAP, Apdo. Postal 10, 56230 Chapingo, Edo. de Mexico, Mexico
| | | | - J C Rudd
- Department of Soil and Crop Sciences, Texas A&M University
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