ArticleHorticulture research2021
Divergence of three BRX homoeologs in Brassica rapa and its effect on leaf morphology.
Article in Horticulture research, 2021. 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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Who cites it
18 citing papers in PubMed, 29 citations in OpenAlex.
- Dynamic chromatin accessibility reveals BrKAN2 as a key regulator of Chinese cabbage leaf heading.Molecular horticulture · 2026Article
- Integrative machine learning and gene regulatory network analysis identifies novel genes for leafy head formation in Brassica rapa and B. oleracea.Molecular horticulture · 2026Article
- JULGI coordinates vascular development and leaf patterning through non-cell-autonomous regulation of miR165/166.Nature communications · 2026Article
- The wucai genome and DNA methylation regulation on the inner leaves' yellowing response to low temperature.Horticulture research · 2025Article
- Developmental landscape and asymmetric gene expression in the leaf vasculature ofHorticulture research · 2025Article
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- Comprehensive identification and systematical characterization of BRX gene family and the functional of GhBRXL5A in response to salt stress.BMC plant biology · 2024Article
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- Physiological Control and Genetic Basis of Leaf Curvature and Heading in Brassica rapa L.Journal of advanced research · 2023Review
- The Roles of Gibberellins in Regulating Leaf Development.Plants (Basel, Switzerland) · 2023Review
- Heterologous expression of a lycophyte protein enhances angiosperm seedling vigor.Development (Cambridge, England) · 2022Article
- BcWRKY33A Enhances Resistance toInternational journal of molecular sciences · 2022Article
- BrKAO2 mutations disrupt leafy head formation in Chinese cabbage (Brassica rapa L. ssp. pekinensis).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- The impacts of allopolyploidization on Methyl-CpG-Binding Domain (MBD) gene family in Brassica napus.BMC plant biology · 2022Article
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- Article
- Series-Spatial Transcriptome Profiling of Leafy Head Reveals the Key Transition Leaves for Head Formation in Chinese Cabbage.Frontiers in plant science · 2021Article
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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
The leafy head characteristic is a special phenotype of Chinese cabbage resulting from artificial selection during domestication and breeding. BREVIS RADIX (BRX) has been suggested to control root elongation, shoot growth, and tiller angle in Arabidopsis and rice. In Brassica rapa, three BrBRX homoeologs have been identified, but only BrBRX.1 and BrBRX.2 were found to be under selection in leaf-heading accessions, indicating their functional diversification in leafy head formation. Here, we show that these three BrBRX genes belong to a plant-specific BRX gene family but that they have significantly diverged from other BRX-like members on the basis of different phylogenetic classifications, motif compositions and expression patterns. Moreover, although the expression of these three BrBRX genes differed, compared with BrBRX.3, BrBRX.1, and BrBRX.2 displayed similar expression patterns. Arabidopsis mutant complementation studies showed that only BrBRX.1 could rescue the brx root phenotype, whereas BrBRX.2 and BrBRX.3 could not. However, overexpression of each of the three BrBRX genes in Arabidopsis resulted in similar pleiotropic leaf phenotypes, including epinastic leaf morphology, with an increase in leaf number and leaf petiole length and a reduction in leaf angle. These leaf traits are associated with leafy head formation. Further testing of a SNP (T/C) in BrBRX.2 confirmed that this allele in the heading accessions was strongly associated with the leaf-heading trait of B. rapa. Our results revealed that all three BrBRX genes may be involved in the leaf-heading trait, but they may have functionally diverged on the basis of their differential expression.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.