ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2021
Functional homoeologous alleles of CONSTANS contribute to seasonal crop type in rapeseed.
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 6 papers.
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6 citing papers in PubMed, 14 citations in OpenAlex.
- BnaCIPK9 homoeologs mediate the dosage-dependent regulation of seed oil in allotetraploid Brassica napus L.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Characterization of FLOWERING LOCUS T-related genes and their putative gene regulatory network in semi-winter Brassica napus cultivar Zhongshaung11.The Plant journal : for cell and molecular biology · 2025Article
- The story of a decade: Genomics, functional genomics, and molecular breeding in Brassica napus.Plant communications · 2024Review
- De Novo Transcriptome Analysis Reveals Flowering-Related Genes That Potentially Contribute to Flowering-Time Control in the Japanese Cultivated GentianInternational journal of molecular sciences · 2022Article
- Transposon insertions within alleles of BnaFT.A2 are associated with seasonal crop type in rapeseed.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- Genome-wide identification of the mangoFrontiers in plant science · 2022Article
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Authors and funding
12 authors at 2 institutions in 2 countries.
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Abstract
key messageTwo CO paralogs in Brassica napus were confirmed and shown distinct expression pattern and function in promoting flowering and allelic variation s within BnaCO.A10 were found closely associated with ecotype divergence. CONSTANS (CO) is a key gene that responds to photoperiod and in Arabidopsis can promote flowering under long-day (LD) conditions. Brassica napus L. is a major oil crop and close relative of Arabidopsis, and arose via allopolyploidization from the diploids B. rapa (A genome) and B. oleracea (C genome). In this study, we confirmed that B. napus has two CO genes located on the A10 (BnaCO.A10) and C9 (BnaCO.C9) chromosomes. Significant differences in level and temporal pattern of transcription, as well as in protein function, of these homoeologous may have resulted from sequence variation in the promoter as well as in the coding region. Apart from two insertions of 527 bp and 2002 bp in the promoter of BnaCO.C9 that function as transcriptional enhancers, this gene is otherwise highly conserved in both promoter and coding region. However, BnaCO.A10 was classified into two haplotypes and transgene analysis in Arabidopsis and backcross analysis in rapeseed indicated that the winter-type haplotype had a greater effect in promoting flowering than the spring type. We discuss the contribution of CO alleles to species evolution, and for eco-geographic radiation following crop domestication, alongside scope for managing this locus in future breeding.
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