Linkage analysis, GWAS, transcriptome analysis to identify candidate genes for rice seedlings in response to high temperature stress

文献类型： 外文期刊

第一作者： Wei, Zhaoran

作者： Wei, Zhaoran;Yuan, Qiaoling;Lin, Hai;Li, Xiaoxia;Zhang, Chao;Gao, Hongsheng;Zhang, Bin;He, Huiying;Liu, Tianjiao;Jie, Zhang;Gao, Xu;Shi, Shandang;Wang, Bo;Qian, Qian;Shang, Lianguang;Wei, Zhaoran;Kong, Lingrang;Gao, Zhenyu;Qian, Qian

作者机构：

关键词： Linkage analysis; GWAS; Transcriptome analysis; Rice seedling; High-temperature-mediated growth response

期刊名称：BMC PLANT BIOLOGY （ 影响因子：4.215； 五年影响因子：4.96 ）

ISSN： 1471-2229

年卷期： 2021 年 21 卷 1 期

页码：

收录情况： SCI

摘要： Background Rice plants suffer from the rising temperature which is becoming more and more prominent. Mining heat-resistant genes and applying them to rice breeding is a feasible and effective way to solve the problem. Result Three main biomass traits, including shoot length, dry weight, and fresh weight, changed after abnormally high-temperature treatment in the rice seedling stage of a recombinant inbred lines and the natural indica germplasm population. Based on a comparison of the results of linkage analysis and genome-wide association analysis, two loci with lengths of 57 kb and 69 kb in qDW7 and qFW6, respectively, were associated with the rice response to abnormally high temperatures at the seedling stage. Meanwhile, based on integrated transcriptome analysis, some genes are considered as important candidate genes. Combining with known genes and analysis of homologous genes, it was found that there are eight genes in candidate intervals that need to be focused on in subsequent research. Conclusions The results indicated several relevant loci, which would help researchers to further discover beneficial heat-resistant genes that can be applied to rice heat-resistant breeding.

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