ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2021
Fine mapping and candidate gene analysis of a major locus controlling ovule abortion and seed number per silique in Brassica napus L.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Identification and functional analysis of a gene regulating tolerance to freezing in Brassica Napus L. seedlings using BSA-seq and RNA-seq.BMC plant biology · 2025Article
- Dissection of B subgenome of Brassica juncea through monosomic addition lines in Brassica napus: phenomic, cytological and genotypic insights.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Genetic dissection of plant architecture reveals haplotypes controlling sink-related traits in oilseed rape under limited nitrogen fertilization.BMC plant biology · 2025Article
- Cytological and genetic analyses of the seed number per silique locus BnSNSC09 in Brassica napus.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Genome-wide association study reveals genetic loci for seed density per silique in rapeseed (Brassica napus L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Fine mapping and candidate gene analysis of the major QTL qSW-A03 for seed weight in Brassica napus.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Article
- Identification and evaluation of phenotypic characters and genetic diversity analysis of 1,558 foxtail millet germplasm resources for conservation and breeding.Frontiers in plant science · 2025Article
- Integrating GWAS, RNA-Seq and functional analysis revealed that BnaA02.SE mediates silique elongation by affecting cell proliferation and expansion in Brassica napus.Plant biotechnology journal · 2024Article
- 3D genome structural variations play important roles in regulating seed oil content of Brassica napus.Plant communications · 2024Article
- Dissection of the genetic basis and molecular mechanism of ovule number per ovary in oilseed rape (Frontiers in plant science · 2024Article
- Linkage and association mapping of ovule number per ovary (ON) in oilseed rape (Molecular breeding : new strategies in plant improvement · 2023Article
- QTL mapping for seed density per silique in Brassica napus.Scientific reports · 2023Article
- Article
- Genome-wide characterization of ovate family protein gene family associated with number of seeds per silique inFrontiers in plant science · 2022Article
- Genetic dissection of the natural variation of ovule number per ovary in oilseed rape germplasm (Frontiers in plant science · 2022Article
- Uncovering Trait Associations Resulting in Maximal Seed Yield in Winter and Spring Oilseed Rape.Frontiers in plant science · 2021Article
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12 authors.
Funding
Abstract
key messageA major QTL controlling ovule abortion and SN was fine-mapped to a 80.1-kb region on A8 in rapeseed, and BnaA08g07940D and BnaA08g07950D are the most likely candidate genes. The seed number per silique (SN), an important yield determining trait of rapeseed, is the final consequence of a complex developmental process including ovule initiation and the subsequent ovule/seed development. To explore the genetic mechanism regulating the natural variation of SN and its related components, quantitative trait locus (QTL) mapping was conducted using a doubled haploid (DH) population derived from the cross between C4-146 and C4-58B, which showed significant differences in SN and aborted ovule number (AON), but no obvious differences in ovule number (ON). QTL analysis identified 19 consensus QTLs for six SN-related traits across three environments. A novel QTL on chromosome A8, un.A8, which associates with multiple traits, except for ON, was stably detected across the three environments. This QTL explained more than 50% of the SN, AON and percentage of aborted ovules (PAO) variations as well as a moderate contribution on silique length (SL) and thousand seed weight (TSW). The C4-146 allele at the locus increases SN and SL but decreases AON, PAO and TSW. Further fine mapping narrowed down this locus into an 80.1-kb interval flanked by markers BM1668 and BM1672, and six predicted genes were annotated in the delimited region. Expression analyses and DNA sequencing showed that two homologs of Arabidopsis photosystem I subunit F (BnaA08g07940D) and zinc transporter 10 precursor (BnaA08g07950D) were the most promising candidate genes underlying this locus. These results provide a solid basis for cloning un.A8 to reduce the ovule abortion and increase SN in the yield improvement of rapeseed.
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