Molecular mapping and identification of a candidate gene for new locus Hg2 conferring hairy glume in wheat

文献类型： 外文期刊

第一作者： Wu, Peipei

作者： Wu, Peipei;Yang, Li;Hu, Jinghuang;Qiu, Dan;Li, Yahui;Shi, Xiaohan;Zhang, Hongjun;Liu, Hongwei;Sun, Guozhong;Zhou, Yang;Li, Hongjie;Guo, Guanghao;Liu, Zhiyong;Zhao, Juntao

作者机构：

关键词： BSR-Seq; Glume pubescence; Hexaploid synthetic wheat; Triticum aestivum

期刊名称：PLANT SCIENCE （ 影响因子：3.591； 五年影响因子：4.253 ）

ISSN： 0168-9452

年卷期： 2021 年 307 卷

页码：

收录情况： SCI

摘要： Glume hairiness or pubescence that occurs in hexaploid common wheat and its relatives at different ploidy levels is a distinct morphological marker. Current knowledge about the genetic control of wheat glume hairiness is based on study of Hg1 (formerly Hg) on chromosome 1AS. Here, we report characterization of a new locus for hairy glume Hg2 in synthetic hexaploid wheat line CIGM86.944. Hg2 was inherited a dominant allele. Bulked segregant analysis and RNA-sequencing (BSR-Seq) was performed on an F-2:3 population from cross CIGM86.944 x Shannong 29 (glabrous glume), which localized Hg2 in a 2.02 cM genetic interval corresponding to similar to 1.08 Mb (754,001,564-755,082,433 Mb) on chromosome 2BL in the Chinese Spring reference genome. Gene annotation and expression identified TraesCS2B02 G562300.1 encoding diacylglycerol kinase 5 protein and TraesCS2B02 G561400.1 encoding a wound-responsive family protein as possible candidate genes regulating development of glume hairiness. The identification of Hg2 provides new insights into the genetic control of glume hairiness in wheat.

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