ArticlePlant physiology2001
B-Bolivia, an allele of the maize b1 gene with variable expression, contains a high copy retrotransposon-related sequence immediately upstream.
Article in Plant physiology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed, 55 citations in OpenAlex.
- Regulation of Flavonoid Biosynthesis by the MYB-bHLH-WDR (MBW) Complex in Plants and Its Specific Features in Cereals.International journal of molecular sciences · 2025Review
- A single dominant GLOBOSA allele accounts for repeated origins of hose-in-hose flowers in Sinningia (Gesneriaceae).The Plant cell · 2024Article
- The double flower variant of yellowhorn is due to a LINE1 transposon-mediated insertion.Plant physiology · 2023Article
- Pan-3D genome analysis reveals structural and functional differentiation of soybean genomes.Genome biology · 2023Article
- Conservation Study of Imprinted Genes in Maize Triparental Heterozygotic Kernels.International journal of molecular sciences · 2022Article
- Demonstration of local adaptation in maize landraces by reciprocal transplantation.Evolutionary applications · 2022Article
- A B73×Palomero Toluqueño mapping population reveals local adaptation in Mexican highland maize.G3 (Bethesda, Md.) · 2022Article
- Whole-genome variation of transposable element insertions in a maize diversity panel.G3 (Bethesda, Md.) · 2021Article
- Distribution and Characteristics of Transposable Elements in the Mulberry Genome.The plant genome · 2019Article
- Article
- Creating Order from Chaos: Epigenome Dynamics in Plants with Complex Genomes.The Plant cell · 2016Review
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- Diverse gene-silencing mechanisms with distinct requirements for RNA polymerase subunits in Zea mays.Genetics · 2014Article
- Imprinting in plants as a mechanism to generate seed phenotypic diversity.Frontiers in plant science · 2014Review
- Transposable elements: powerful contributors to angiosperm evolution and diversity.Genome biology and evolution · 2013Article
- How important are transposons for plant evolution?Nature reviews. Genetics · 2013Review
- Parent-of-origin effects on gene expression and DNA methylation in the maize endosperm.The Plant cell · 2011Article
- Assessing the efficiency of RNA interference for maize functional genomics.Plant physiology · 2007Article
- Three non-allelic epistatically interacting methyltransferase mutations produce novel tocopherol (vitamin E) profiles in sunflower.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2006Article
- Transcriptionally silenced transgenes in maize are activated by three mutations defective in paramutation.Genetics · 2006Article
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2 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
The maize (Zea mays) b1 gene encodes a transcription factor that regulates the anthocyanin pigment pathway. Of the b1 alleles with distinct tissue-specific expression, B-Peru and B-Bolivia are the only alleles that confer seed pigmentation. B-Bolivia produces variable and weaker seed expression but darker, more regular plant expression relative to B-Peru. Our experiments demonstrated that B-Bolivia is not expressed in the seed when transmitted through the male. When transmitted through the female the proportion of kernels pigmented and the intensity of pigment varied. Molecular characterization of B-Bolivia demonstrated that it shares the first 530 bp of the upstream region with B-Peru, a region sufficient for seed expression. Immediately upstream of 530 bp, B-Bolivia is completely divergent from B-Peru. These sequences share sequence similarity to retrotransposons. Transient expression assays of various promoter constructs identified a 33-bp region in B-Bolivia that can account for the reduced aleurone pigment amounts (40%) observed with B-Bolivia relative to B-Peru. Transgenic plants carrying the B-Bolivia promoter proximal region produced pigmented seeds. Similar to native B-Bolivia, some transgene loci are variably expressed in seeds. In contrast to native B-Bolivia, the transgene loci are expressed in seeds when transmitted through both the male and female. Some transgenic lines produced pigment in vegetative tissues, but the tissue-specificity was different from B-Bolivia, suggesting the introduced sequences do not contain the B-Bolivia plant-specific regulatory sequences. We hypothesize that the chromatin context of the B-Bolivia allele controls its epigenetic seed expression properties, which could be influenced by the adjacent highly repeated retrotransposon sequence.
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