Richard B. Flavell
John Innes Centre
5 Papers
109 Citations
Richard B. Flavell is an academic researcher from John Innes Centre. The author has contributed to research in topics: Gene & Promoter. The author has an hindex of 4, co-authored 5 publications.
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Papers
Details of T-DNA structural organization from a transgenic Petunia population exhibiting co-suppression.
TL;DR: Analysis of Agrobacterium-transferred DNA revealed strong correlations between transgene structures and floral pigmentation patterns from chalcone synthase (chs) co-suppression among 47 Petunia transformants, and the full details of T-DNA structural organization in that population are presented.
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Correlation between the size of the intergenic regulatory region, the status of cytosine methylation of rRNA genes and nucleolar expression in wheat
TL;DR: The results have been integrated into a model for the control of rDNA expression based on correlations between cytosine methylation patterns and the number of upstream 135 by repeats in intergenic regions, which plays a part in the Control of gene activity by binding a protein(s) that is in limiting supply.
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Protein-binding to reiterated motifs within the wheat rRNA gene promoter and upstream repeats.
TL;DR: Results endorse the hypothesis that ribosomal RNA gene transcription is regulated by the extent of binding of a protein to many sites upstream of the transcriptional start site.
17
Regulatory DNA of ribosomal RNA genes and control of nucleolus organizer activity in wheat
TL;DR: It is concluded that the processes that produce different numbers of regulatory DNA sequences between rRNA genes are responsible for the differential expression of nucleolus organisers in hexaploid wheat and in interspecies hybrids.
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Transgene-promoted epigenetic switches of chalcone synthase activity in petunia plants.
Richard B. Flavell,Michael O'Dell,M. Metzlaff +2 more
- 01 Jan 1998
TL;DR: The probability, extent and developmental location of chalcone synthase RNA breakdown are related to the number and organization of transgenes in the genome but epigenetic switches that affect RNA turnover probably occur in meristems and between sexual generations.
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