数字农科院2.0

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

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

作者机构：

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

期刊名称： BMC PLANT BIOLOGY

ISSN： 1471-2229

年卷期： 2021 年 21 卷 1 期

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收录情况： JCR（2021版）

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. © 2021, The Author(s).

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