ArticlePlant physiology2023
Natural variation and artificial selection at the BnaC2.MYB28 locus modulate Brassica napus seed glucosinolate.
Article in Plant physiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 17 citations in OpenAlex.
- Comparative genomics and time-course transcriptomics uncover homoeologous exchange events reshaping glucosinolate metabolism in Brassica napus.Molecular horticulture · 2026Article
- BoOFP6 Negatively Regulates Glucosinolates Accumulation in Broccoli Sprouts by Cytoplasmic Sequestration of BoMYB34-3.Plant, cell & environment · 2026Article
- Glucosinolates inInternational journal of molecular sciences · 2026Review
- QTL and candidate gene analysis unveil genetic control of floret aliphatic glucosinolate side-chain modification inHorticulture research · 2025Article
- An alternative splicing caused by a natural variation in BnaC02.VTE4 gene affects vitamin E and glucosinolate content in rapeseed (Brassica napus L.).Plant biotechnology journal · 2025Article
- Deciphering the heterogeneous glucosinolates composition in leaves and seeds: strategies for developing Brassica napus genotypes with low seed glucosinolates content but high leaf glucosinolates content.Molecular horticulture · 2025Article
- Pan-genome analysis of the R2R3-MYB genes family inFrontiers in plant science · 2025Article
- Sulforaphane-Enriched Extracts from Broccoli Exhibit Antimicrobial Activity against Plant Pathogens, Promising a Natural Antimicrobial Agent for Crop Protection.Biomolecules · 2024Article
- Evolution and comparative transcriptome analysis of glucosinolate pathway genes inFrontiers in plant science · 2024Article
- Developing multifunctional crops by engineering Brassicaceae glucosinolate pathways.Plant communications · 2023Review
- Genome-Wide Association Study of Glucosinolate Metabolites (mGWAS) inPlants (Basel, Switzerland) · 2023Article
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12 authors at 2 institutions in 1 country.
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Abstract
The degradation products of glucosinolates (GSLs) greatly lower the nutritional value of rapeseed (Brassica napus) meal; thus, reduction of seed GSL content (SGC) has become an important objective of rapeseed breeding. In our previous study, we finely mapped a major QTL (qGSL-C2) for SGC to a 49-kb collinear region on B. rapa chromosome A2. Here, we experimentally validated that BnaC2.MYB28, encoding an R2R3-MYB transcription factor, is the causal gene of qGSL-C2. BnaC2.MYB28 is a nucleus-localized protein mainly expressed in vegetative tissues. Knockout of BnaC2.MYB28 in the high-SGC parent G120 reduced SGC to a value lower than that in the low-SGC parent ZY50, while overexpression of BnaC2.MYB28 in both parental lines (G120 and ZY50) led to extremely high SGC, indicating that BnaC2.MYB28 acts as a positive regulator of SGC in both parents. Molecular characterization revealed that BnaC2.MYB28 forms a homodimer and specifically interacts with BnaMYC3. Moreover, BnaC2.MYB28 can directly activate the expression of GSL biosynthesis genes. Differential expression abundance resulting from the polymorphic promoter sequences, in combination with the different capability in activating downstream genes involved in aliphatic GSL biosynthesis, caused the functional divergence of BnaC2.MYB28 in SGC regulation between the parents. Natural variation of BnaC2.MYB28 was highly associated with SGC in natural germplasm and has undergone artificial selection in modern low-GSL breeding. This study provides important insights into the core function of BnaC2.MYB28 in regulating SGC and a promising strategy for manipulating SGC in rapeseed.
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