文献类型： 外文期刊

第一作者： Zeng, C. L.

作者： Zeng, C. L.;Wan, H. P.;Dai, X. G.;Chen, J. D.;Ji, Q. Q.;Qian, F.;Wu, X. M.

作者机构：

关键词： Brassica napus; low nitrogen tolerance index; quantitative trait loci; single-nucleotide polymorphisms

期刊名称：BIOLOGIA PLANTARUM （ 影响因子：1.601； 五年影响因子：1.898 ）

ISSN： 0006-3134

年卷期： 2021 年 65 卷

页码：

收录情况： SCI

摘要： The large application of nitrogen fertilizer will cause soil deterioration and pollute the environment. Reduction of nitrogen inputs and maintaining high yields are therefore essential to ensure a more sustainable agriculture. However, little information is available about rapeseed (Brassica napus L.) low nitrogen tolerance. We evaluated low nitrogen tolerance of 304 rapeseed accessions at seedling stage and performed a genome-wide association study to detect low nitrogen tolerance-related quantitative trait loci. A natural population comprising 304 B. napus inbred lines was genotyped with a Brassica 60K Illumina Infinium SNP array. Finally, 11 single-nucleotide polymorphisms were associated with 3 low nitrogen tolerance-related traits, which explained 5.79 7.57 % of the phenotypic variation. In addition, three possible candidate genes were located near the genetic region. Our results provide valuable information for understanding the genetic control of rapeseed low nitrogen tolerance at seedling stage and may facilitate a marker based breeding for rapeseed low nitrogen tolerance.

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