Phenotypic characterization of the glossy1 mutant and fine mapping of GLOSSY1 in common wheat (Triticum aestivum L.)

文献类型： 外文期刊

第一作者： Li, Linghong

作者： Li, Linghong;Chai, Lingling;Xu, Huanwen;You, Mingshan;Peng, Huiru;Yao, Yingyin;Hu, Zhaorong;Xin, Mingming;Guo, Weilong;Sun, Qixin;Ni, Zhongfu;Li, Linghong;Chai, Lingling;Xu, Huanwen;You, Mingshan;Peng, Huiru;Yao, Yingyin;Hu, Zhaorong;Xin, Mingming;Guo, Weilong;Sun, Qixin;Ni, Zhongfu;Zhai, Huijie;Wang, Tianya;Zhang, Mingyi;Chen, Xiyong

作者机构：

期刊名称：THEORETICAL AND APPLIED GENETICS （ 影响因子：5.699； 五年影响因子：5.565 ）

ISSN： 0040-5752

年卷期： 2021 年 134 卷 3 期

页码：

收录情况： SCI

摘要： Key message A novel wax locus GLOSSY1 was finely mapped to an approximately 308.1-kbp genomic interval on chromosome 2DS of wheat. The epicuticular wax, the outermost layer of aerial organs, gives plants their bluish-white (glaucous) appearance. Epicuticular wax is ubiquitous and provides an essential protective function against environmental stresses. In this study, we identified the glossy1 mutant on the basis of its glossy glume from an EMS population in the elite wheat (Triticum aestivum L.) cultivar Jimai22. The mutant had a dramatically different profile in total wax load and composition of individual wax constituents relative to the wild type, resulting in the increased cuticle permeability of glumes. The glossy glume phenotype was controlled by a single, semidominant locus mapping to the short arm of chromosome 2D, within a 308.1-kbp genomic interval that contained ten annotated protein-coding genes. These results pave the way for an in-depth analysis of the underlying genetic basis of wax formation patterns and enrich our understanding of mechanisms regulating wax metabolism.

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