ArticleMolecular genetics and genomics : MGG2003
High-resolution genetic and physical mapping of the cauliflower high-beta-carotene gene Or ( Orange).
Article in Molecular genetics and genomics : MGG, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Development of Or-gene-based co-dominant markers and their utilization in marker-assisted breeding for ß-carotene biofortification in different maturity groups of cauliflower.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Transcriptome Analysis of Green and White Leaf Ornamental Kale Reveals Coloration-Related Genes and Pathways.Frontiers in plant science · 2022Article
- Diversity of Plastid Types and Their Interconversions.Frontiers in plant science · 2021Review
- Genetic mapping of green curd gene Gr in cauliflower.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Article
- The cauliflower Or gene encodes a DnaJ cysteine-rich domain-containing protein that mediates high levels of beta-carotene accumulation.The Plant cell · 2006Article
- Construction and characterization of a peanut HindIII BAC library.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2005Article
- Molecular and biochemical characterization of the selenocysteine Se-methyltransferase gene and Se-methylselenocysteine synthesis in broccoli.Plant physiology · 2005Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Mutation in the cauliflower gene Or causes high levels of beta-carotene to accumulate in various tissues of the plant that are normally devoid of carotenoids. To decipher the molecular basis by which Or regulates carotenoid accumulation, we have undertaken the isolation of Or by a map-based cloning strategy. Two previously isolated, locus-specific, sequence-characterized amplified region (SCAR) markers that flank Or were employed for the analysis of a large segregating population consisting of 1632 F(2) individuals, and a high-resolution genetic linkage map of the Or locus region was developed. To facilitate positional cloning, we constructed a cauliflower genomic library in a bacterial artificial chromosome (BAC) vector, using high molecular weight DNA from Or homozygotes. The BAC library comprises 60,288 clones with an average insert size of 110 kb, and represents an estimated 10-fold coverage of the genome. A BAC contig encompassing the Or locus was established by screening the library with a marker that is closely linked to Or and by identifying overlapping BAC clones by chromosome walking. Physical mapping delimited the Or locus to a 50-kb DNA fragment within a single BAC clone, which corresponds to a genetic interval of 0.3 cM.
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