Identification of Advantaged Genes for Lodging Resistance-Related Traits in the Temperate geng Group (Oryza sativa L.) Using a Genome-Wide Association Study

文献类型： 外文期刊

第一作者： Zhai, Laiyuan

作者： Zhai, Laiyuan;Li, Duxiong;Ren, Ningning;Zhu, Shuangbing;Shen, Congcong;Chen, Kai;Xu, Jianlong;Zhai, Laiyuan;Wang, Dengji;Xu, Jianlong;Li, Duxiong;Ren, Ningning;Li, Duxiong;Ren, Ningning

作者机构：

关键词： temperate geng group (Oryza sativa L.); GWAS; lodging resistance; quantitative trait loci/locus (QTL); candidate genes

期刊名称：AGRONOMY-BASEL （ 影响因子：3.7； 五年影响因子：4.0 ）

ISSN：

年卷期： 2023 年 13 卷 11 期

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收录情况： SCI

摘要： With the endless growth of the population and development of the economy and living standards, a high yield with good grain quality has become the prime objective of breeding. However, lodging is a major factor leading to a significant decline in rice (Oryza sativa L.) production and quality. We conducted genome-wide association analysis to detect quantitative trait loci (QTL)-related lodging resistance, using 395 temperate geng accessions. A total of 50 QTL affecting the six traits were detected, using 1,438,279 high-quality single nucleotide polymorphism markers. Five important QTL clusters were detected affecting the lodging resistance-related traits. The ten candidate genes were detected by performing gene differential expression analysis and haplotype analysis. Among them, LOC_Os07g48570 (OsDof-23) for qLA7.2, qSA7.2 and qPR7.3, LOC_Os08g29110 (wp2) for qLA8 and qSA8, and LOC_Os11g36440 (MHZ5) for qPR11 and qBR11.1 were considered the most likely candidate genes based on functional annotations. The results may facilitate the breeding of rice varieties resistant to lodging, to overcome the adverse effects of climate change.

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