ArticlePlant biotechnology journal2019
A novel quantitative trait locus on chromosome A9 controlling oleic acid content in Brassica napus.
Article in Plant biotechnology journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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18 citing papers in PubMed, 40 citations in OpenAlex.
- Genetic Origin ofPlants (Basel, Switzerland) · 2026Article
- The chromosome-scale genomes of two cultivated safflowers (Carthamus tinctorius) provide insights into the genetic diversity resulting from domestication.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Identification of transcription factor BnHDG4-A08 as a novel candidate associated with the accumulation of oleic, linoleic, linolenic, and erucic acid in Brassica napus.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- The story of a decade: Genomics, functional genomics, and molecular breeding in Brassica napus.Plant communications · 2024Review
- Comparative Transcriptomics Uncovers Upstream Factors RegulatingPlants (Basel, Switzerland) · 2024Article
- Article
- 3D genome structural variations play important roles in regulating seed oil content of Brassica napus.Plant communications · 2024Article
- Identification of Quantitative Trait Nucleotides and Development of Diagnostic Markers for Nine Fatty Acids in the Peanut.Plants (Basel, Switzerland) · 2023Article
- Fine mapping and candidate gene analysis of a major QTL for oil content in the seed of Brassica napus.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- Lipid Metabolism and Improvement in Oilseed Crops: Recent Advances in Multi-Omics Studies.Metabolites · 2023Review
- Genetic improvement of tocotrienol content enhances the oxidative stability of canola oil.Frontiers in plant science · 2023Article
- Clone and Function Verification of the OPR gene in Brassica napus Related to Linoleic Acid Synthesis.BMC plant biology · 2022Article
- CRISPR/Cas9-mediated editing of double loci ofFrontiers in plant science · 2022Article
- Construction of a Quantitative Genomic Map, Identification and Expression Analysis of Candidate Genes for Agronomic and Disease-Related Traits inFrontiers in plant science · 2022Article
- Exploring the gene pool of Brassica napus by genomics-based approaches.Plant biotechnology journal · 2021Review
- Identification and Development of KASP Markers for Novel MutantFrontiers in plant science · 2021Article
- Identification of QTLs Containing Resistance Genes for Sclerotinia Stem Rot inFrontiers in plant science · 2020Article
- Heterogeneous Distribution of Erucic Acid inFrontiers in plant science · 2019Article
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
One of the most important goals in the breeding of oilseed crops, including Brassica napus, is to improve the quality of edible vegetable oil, which is mainly determined by the seed fatty acid composition, particularly the C18:1 content. Previous studies have indicated that the C18:1 content is a polygenic trait, and no stable quantitative trait loci (QTLs) except for FAD2 have been reported. By performing a GWAS using 375 low erucic acid B. napus accessions genotyped with the Brassica 60K SNP array and constructing a high-density SNP-based genetic map of a 150 DH population, we identified a novel QTL on the A9 chromosome. The novel locus could explain 11.25%, 5.72% and 6.29% of phenotypic variation during three consecutive seasons and increased the C18:1 content by approximately 3%-5%. By fine mapping and gene expression analysis, we found three potential candidate genes and verified the fatty acids in a homologous gene mutant of Arabidopsis. A metal ion-binding protein was found to be the most likely candidate gene in the region. Thus, the C18:1 content can be further increased to about 80% with this novel locus together with FAD2 mutant allele without compromise of agronomic performance. A closely linked marker, BnA129, for this novel QTL (OLEA9) was developed so that we can effectively identify materials with high C18:1 content at an early growth stage by marker-assisted selection. Our results may also provide new insight for understanding the complex genetic mechanism of fatty acid metabolism.
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