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

被引:2
|
作者
Zhai, Laiyuan [1 ,2 ]
Li, Duxiong [1 ,3 ,4 ]
Ren, Ningning [1 ,3 ,4 ]
Zhu, Shuangbing [1 ]
Wang, Dengji [2 ]
Shen, Congcong [1 ]
Chen, Kai [1 ]
Xu, Jianlong [1 ,2 ]
机构
[1] Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Shenzhen Branch, Guangdong Lab Lingnan Modern Agr, Shenzhen 518120, Peoples R China
[2] Chinese Acad Agr Sci, Inst Crop Sci, State Key Lab Crop Gene Resources & Breeding, Beijing 100081, Peoples R China
[3] Henan Univ, Sch Life Sci, State Key Lab Crop Stress Adaptat & Improvement, Kaifeng 475004, Peoples R China
[4] Henan Univ, Shenzhen Res Inst, Shenzhen 518000, Peoples R China
来源
AGRONOMY-BASEL | 2023年 / 13卷 / 11期
关键词
temperate geng group (Oryza sativa L.); GWAS; lodging resistance; quantitative trait loci/locus (QTL); candidate genes; SALINITY TOLERANCE; AGRONOMIC TRAITS; RICE;
D O I
10.3390/agronomy13112711
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
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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页数:18
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