A Novel QTL Conferring Crown Rot Resistance Located on Chromosome Arm 6HL in Barley.

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ID: 64822
2019
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Ranked #65 of 187 articles by views in Frontiers in plant science

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Abstract
crown rot (FCR), caused primarily by , is a devastating disease for cereal production in semi-arid regions worldwide. To identify and characterize loci conferring FCR resistance, we assessed a landrace AWCS799 which is among the best lines identified from a systematic screening of more than 1,000 genotypes. Genetic control of its resistance was investigated by generating and analyzing two populations of recombinant inbred lines with AWCS799 as the common parent. One of the populations was used for QTL detection and the other for validation. A novel QTL, located on the long arm of chromosome 6H (designated as ), was consistently detected in each of the four FCR severity tests conducted against the mapping population. The QTL explained up to 28.3% of the phenotypic variance, and its effect was confirmed in the validation population. Significant interaction between this resistance locus and either plant height or heading date was not detected, further facilitating its manipulation in breeding programs.
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gao2019afrontiers Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Gao, Shang;Zheng, Zhi;Hu, Haiyan;Shi, Haoran;Ma, Jian;Liu, Yaxi;Wei, Yuming;Zheng, You-Liang;Zhou, Meixue;Liu, Chunji;
Journal Frontiers in plant science
Year 2019
DOI
10.3389/fpls.2019.01206
URL
Keywords
qtl breeding barley (hordeum vulgare l.) fusarium crown rot (fcr) ril population

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