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Identification of Candidate Genes for Low Phosphorus Tolerance in Maize Seedling Stage Based on GWAS and Transcriptome

文献类型：期刊论文

作者Hao, Xiaojia2,3; Lei, Gonxin2,3; Zhong, Zhiming1; Zhuang, Zelong2,3; Bian, Jianwen2,3; Zhang, Lei2,3; Ta, Wanling2,3; Ren, Zhenping2,3; Peng, Yunling2,3
刊名PLANTS-BASEL
出版日期2025-09-11
卷号14期号:18页码:2836
关键词candidate genes differentially expressed genes (DEGs) genome-wide association study (GWAS) low phosphorus tolerance maize seedling stage transcriptome sequencing
ISSN号2223-7747
DOI10.3390/plants14182836
产权排序3
文献子类Article
英文摘要Phosphorus is an essential nutrient for maize growth and development, and its deficiency can significantly inhibit plant growth, leading to reduced yield and quality. To elucidate the genetic mechanisms underlying low phosphorus tolerance in maize, this study utilized a panel of 257 maize inbred lines and conducted controlled experiments under low phosphorus (LP) and normal phosphorus (CK) conditions in artificial climate chambers. Through genome-wide association study (GWAS), a total of 46 SNP loci significantly associated with low phosphorus tolerance were detected, and 74 candidate genes were predicted. To further investigate, the low-phosphorus tolerant material CML422 and the phosphorus-sensitive material CIMBL90 were selected for transcriptome sequencing, which identified a total of 7232 differentially expressed genes (DEGs). KEGG enrichment analysis revealed that these genes were significantly enriched in key pathways such as plant hormone signal transduction, MAPK signaling pathway, and starch and sucrose metabolism, suggesting that maize responds to low phosphorus stress through the coordinated regulation of multiple pathways. By integrating GWAS and transcriptome data, 18 co-localized genes were screened, ultimately identifying 10 candidate genes closely associated with low phosphorus tolerance during the maize seedling stage, which are potentially involved in regulating growth and development under phosphorus stress. This study preliminarily elucidates the molecular mechanisms underlying low phosphorus tolerance in maize through multi-omics analysis, providing both a theoretical basis and genetic resources for breeding new maize varieties with high phosphorus use efficiency.
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WOS关键词ZEA-MAYS L. ; PHOSPHATE DEFICIENCY ; ARABIDOPSIS ; EXPRESSION ; RESPONSES ; OVEREXPRESSION ; RESISTANCE ; MECHANISM ; REVEALS ; DISEASE
WOS研究方向Plant Sciences
语种英语
WOS记录号WOS:001579901300001
出版者MDPI
源URL[http://ir.igsnrr.ac.cn/handle/311030/217466]  
专题拉萨站高原生态系统研究中心_外文论文
通讯作者Peng, Yunling
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Gansu Agr Univ, Gansu Prov Key Lab Aridland Crop Sci, Lanzhou 730070, Peoples R China;
3.Gansu Agr Univ, Coll Agron, Lanzhou 730070, Peoples R China;
推荐引用方式
GB/T 7714		 Hao, Xiaojia,Lei, Gonxin,Zhong, Zhiming,et al. Identification of Candidate Genes for Low Phosphorus Tolerance in Maize Seedling Stage Based on GWAS and Transcriptome[J]. PLANTS-BASEL,2025,14(18):2836.
APA Hao, Xiaojia.,Lei, Gonxin.,Zhong, Zhiming.,Zhuang, Zelong.,Bian, Jianwen.,...&Peng, Yunling.(2025).Identification of Candidate Genes for Low Phosphorus Tolerance in Maize Seedling Stage Based on GWAS and Transcriptome.PLANTS-BASEL,14(18),2836.
MLA Hao, Xiaojia,et al."Identification of Candidate Genes for Low Phosphorus Tolerance in Maize Seedling Stage Based on GWAS and Transcriptome".PLANTS-BASEL 14.18(2025):2836.

入库方式： OAI收割

来源：地理科学与资源研究所

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