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Detection of epistatic and environmental interaction QTL s for leaf orientation‐related traits in maize
Author(s) -
Shi Yong,
Wang Xiaobo,
Guo Shulei,
Ren Zhenzhen,
Ku Lixia,
Zhu Yuguang,
Li Guohui,
Qi Jianshuang,
Zhang Xin,
Ren Zhaobin,
Chen Yanhui
Publication year - 2017
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/pbr.12431
Subject(s) - quantitative trait locus , biology , epistasis , family based qtl mapping , genetics , genetic architecture , inbred strain , inclusive composite interval mapping , candidate gene , gene mapping , gene , chromosome
Leaf architecture traits in maize are quantitative and have been studied by quantitative trait loci ( QTL s) mapping. However, additional QTL s for these traits require mapping and the interactions between mapped QTL s require studying because of the complicated genetic nature of these traits. To detect common QTL s and to find new ones, we investigated the maize traits of leaf angle, leaf flagging‐point length, leaf length and leaf orientation value using a set of recombinant inbred line populations and single nucleotide polymorphism markers. In total, 19 QTL s contributed 4.13–13.52% of the phenotypic effects to the corresponding traits that were mapped, and their candidate genes are provided. Common and major QTL s have also been detected. All of the QTL s showed significant additive effects and non‐significant additive × environment effects in combined environments. The majority showed additive × additive epistasis effects and non‐significant QTL × environment effects under single environments. Common and major QTL s provided information for fine mapping and gene cloning, and SNP markers can be used for marker‐assisted selection breeding.