ArticleAnnals of botany2021
Genome-wide association study dissects the genetic control of plant height and branch number in response to low-phosphorus stress in Brassica napus.
Article in Annals of botany, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 31 citations in OpenAlex.
- Genome-Wide Association Study Reveals Candidate Genes Regulating Plant Height and First-Branch Height inInternational journal of molecular sciences · 2025Article
- Detection of Different Patterns of Genome-Wide Gene Expression Disturbance in Three Nullisomy Lines in AllotetraploidPlants (Basel, Switzerland) · 2025Article
- Integrative GWAS and transcriptomic analyses reveal regulatory genes controlling shoot branching in sunflower.Frontiers in plant science · 2025Article
- Exploring silique number in Brassica napus L.: Genetic and molecular advances for improving yield.Plant biotechnology journal · 2024Review
- Dissection of quantitative trait nucleotides and candidate genes associated with agronomic and yield-related traits under drought stress in rapeseed varieties: integration of genome-wide association study and transcriptomic analysis.Frontiers in plant science · 2024Article
- Genome-wide association study reveals candidate genes controlling root system architecture under low phosphorus supply at seedling stage inMolecular breeding : new strategies in plant improvement · 2023Article
- Integrating genome-wide association studies with selective sweep reveals genetic loci associated with tolerance to low phosphate availability inMolecular breeding : new strategies in plant improvement · 2023Article
- Genome-wide association study identifies candidate genes and favorable haplotypes for seed yield inMolecular breeding : new strategies in plant improvement · 2022Article
- Differential alternative splicing genes and isoform co-expression networks ofFrontiers in plant science · 2022Article
- Genetic dissection of branch architecture in oilseed rape (Frontiers in plant science · 2022Article
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Authors and funding
11 authors at 2 institutions in 3 countries.
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Abstract
BACKGROUND AND
aimsOilseed rape (Brassica napus) is one of the most important oil crops worldwide. Phosphorus (P) deficiency severely decreases the plant height and branch number of B. napus. However, the genetic bases controlling plant height and branch number in B. napus under P deficiency remain largely unknown. This study aims to mine candidate genes for plant height and branch number by genome-wide association study (GWAS) and determine low-P-tolerance haplotypes.
methodsAn association panel of B. napus was grown in the field with a low P supply (P, 0 kg ha-1) and a sufficient P supply (P, 40 kg ha-1) across 2 years and plant height and branch number were investigated. More than five million single-nucleotide polymorphisms (SNPs) were used to conduct GWAS of plant height and branch number at two contrasting P supplies. KEY
resultsA total of 2127 SNPs were strongly associated (P < 6·25 × 10-07) with plant height and branch number at two P supplies. There was significant correlation between phenotypic variation and the number of favourable alleles of associated loci on chromosomes A10 (chrA10_821671) and C08 (chrC08_27999846), which will contribute to breeding improvement by aggregating these SNPs. BnaA10g09290D and BnaC08g26640D were identified to be associated with chrA10_821671 and chrC08_27999846, respectively. Candidate gene association analysis and haplotype analysis showed that the inbred lines carrying ATT at BnaA10g09290Hap1 and AAT at BnaC08g26640Hap1 had greater plant height than lines carrying other haplotype alleles at low P supply.
conclusionOur results demonstrate the power of GWAS in identifying genes of interest in B. napus and provided insights into the genetic basis of plant height and branch number at low P supply in B. napus. Candidate genes and favourable haplotypes may facilitate marker-based breeding efforts aimed at improving P use efficiency in B. napus.
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