Identification of genetic factors controlling phosphorus utilization efficiency in wheat by genome-wide association study with principal component analysis

文献类型： 外文期刊

第一作者： Bin Safdar, Luqman

作者： Bin Safdar, Luqman;Almas, Fakhrah;Uddin, Siraj;Quraishi, Umar Masood;Umer, Muhammad Jawad;Uddin, Siraj;Safdar, Qurra-tul-Ain;Blighe, Kevin

作者机构：

关键词： P utilization efficiency; Genome-wide association study; Phosphate rock

期刊名称：GENE （ 影响因子：3.688； 五年影响因子：3.329 ）

ISSN： 0378-1119

年卷期： 2021 年 768 卷

页码：

收录情况： SCI

摘要： Despite the economic importance of P utilization efficiency, information on genetic factors underlying this trait remains elusive. To address that, we performed a genome-wide association study in a spring wheat diversity panel ranging from landraces to elite varieties. We evaluated the phenotype variation for P utilization efficiency in controlled conditions and genotype variation using wheat 90 K SNP array. Phenotype variables were trans formed into a smaller set of uncorrelated principal components that captured the most important variation data. We identified two significant loci associated with both P utilization efficiency and the 1st principal component on chromosomes 3A and 4A: qPE1-3A and qPE2-4A. Annotation of genes at these loci revealed 53 wheat genes, among which 6 were identified in significantly enriched pathways. The expression pattern of these 6 genes indicated that TraesCS4A02G481800, involved in pyruvate metabolism and TCA cycle, had a significantly higher expression in the P efficient variety under limited P conditions. Further characterization of these loci and candidate genes can help stimulate P utilization efficiency in wheat.

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