New QTL for resistance to Puccinia polysora Underw in maize

文献类型: 外文期刊

第一作者: Deng, Ce

作者: Deng, Ce;Li, Huimin;Li, Zhimin;Tian, Zhiqiang;Ding, Junqiang;Chen, Jiafa;Chen, Gengshen;Zhang, Xuecai;Chang, Yuxiao

作者机构:

关键词: Maize; Southern corn rust; QTL; SNP marker

期刊名称:JOURNAL OF APPLIED GENETICS ( 影响因子:3.24; 五年影响因子:2.756 )

ISSN: 1234-1983

年卷期: 2019 年 60 卷 2 期

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收录情况: SCI

摘要: Southern corn rust (SCR) is a prevalent foliar disease in maize. Deployment of resistant cultivars is an effective way to control SCR. In this study, resistance to SCR was evaluated in a BC1RIL population comprising 118 lines grown under three different field conditions. Combined with a genetic map constructed from 1635 SNP markers obtained from the maize 9.4 K SNP Affymetrix (R) Axiom (R) Genotyping Array, single quantitative trait loci (QTL) were mapped on chromosomes 4, 9, and 10, respectively. The QTL on chromosome 4 (qSCR4.08) and chromosome 9 (qSCR9.04) were stable across multiple environments, and each explained more than 10% of the phenotypic variation. The stable QTL detected could be desirable sources of SCR resistance in maize-breeding programs.

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