Identification and Fine Mapping of qSCR4.01, a Novel Major QTL for Resistance to Puccinia polysora in Maize

Southern corn rust (SCR) is a prevalent foliar disease that can lead to severe yield losses in maize. Growing SCR-resistant varieties is the most effective way to control the disease. To identify major quantitative trait loci (QTLs) for SCR resistance, a recombinant inbred line population derived fr...

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Veröffentlicht in:Plant disease. - 1997. - 104(2020), 7 vom: 09. Juli, Seite 1944-1948
1. Verfasser: Deng, Ce (VerfasserIn)
Weitere Verfasser: Lv, Meng, Li, Xueying, Zhao, Xiaodi, Li, Huimin, Li, Zhimin, Tian, Zhiqiang, Leonard, April, Jaqueth, Jennifer, Li, Bailin, Hao, Junjie, Ding, Junqiang
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article fine mapping maize novel QTL southern corn rust
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520 |a Southern corn rust (SCR) is a prevalent foliar disease that can lead to severe yield losses in maize. Growing SCR-resistant varieties is the most effective way to control the disease. To identify major quantitative trait loci (QTLs) for SCR resistance, a recombinant inbred line population derived from a cross between CIMBL83 (resistant) and Lx9801 (susceptible) was analyzed. The resistance to SCR had high heritability within the population, and a major QTL on chromosome 4 (qSCR4.01), which can explain 48 to 65% of the total phenotypic variation, was consistently detected across multiple environments. Using a progeny-based fine-mapping strategy, we delimited qSCR4.01 to an interval of ∼770 kb. In contrast to other major QTLs for SCR resistance previously reported on the short arm of chromosome 10, qSCR4.01 is a novel QTL and, therefore, a desirable source of SCR resistance in maize breeding programs 
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700 1 |a Lv, Meng  |e verfasserin  |4 aut 
700 1 |a Li, Xueying  |e verfasserin  |4 aut 
700 1 |a Zhao, Xiaodi  |e verfasserin  |4 aut 
700 1 |a Li, Huimin  |e verfasserin  |4 aut 
700 1 |a Li, Zhimin  |e verfasserin  |4 aut 
700 1 |a Tian, Zhiqiang  |e verfasserin  |4 aut 
700 1 |a Leonard, April  |e verfasserin  |4 aut 
700 1 |a Jaqueth, Jennifer  |e verfasserin  |4 aut 
700 1 |a Li, Bailin  |e verfasserin  |4 aut 
700 1 |a Hao, Junjie  |e verfasserin  |4 aut 
700 1 |a Ding, Junqiang  |e verfasserin  |4 aut 
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