ArticlePlant molecular biology2001
Retrotransposons of the Tnt1B family are mobile in Nicotiana plumbaginifolia and can induce alternative splicing of the host gene upon insertion.
Article in Plant molecular biology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 31 citations in OpenAlex.
- Hybridization History and Repetitive Element Content in the Genome of a Homoploid Hybrid,Frontiers in plant science · 2020Article
- Genetic diversity of the conserved motifs of six bacterial leaf blight resistance genes in a set of rice landraces.BMC genetics · 2014Article
- Alternative splicing in the coding region of Ppo-A1 directly influences the polyphenol oxidase activity in common wheat (Triticum aestivum L.).Functional & integrative genomics · 2011Article
- Article
- Differential impact of retrotransposon populations on the genome of allotetraploid tobacco (Nicotiana tabacum).Molecular genetics and genomics : MGG · 2007Article
- Comparative cross-species alternative splicing in plants.Plant physiology · 2007Article
- Posttranslational regulation of nitrate reductase strongly affects the levels of free amino acids and nitrate, whereas transcriptional regulation has only minor influence.Plant physiology · 2006Article
- Article
- Genomic characterization of Rim2/Hipa elements reveals a CACTA-like transposon superfamily with unique features in the rice genome.Molecular genetics and genomics : MGG · 2003Article
- Seedling lethality in Nicotiana plumbaginifolia conferred by Ds transposable element insertion into a plant-specific gene.Plant molecular biology · 2002Article
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3 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Active retrotransposons have been identified in Nicotiana plumbaginifolia by their ability to disrupt the nitrate reductase gene in chlorate-resistant mutants selected from protoplast-derived cultures. In mutants E23 and F97, two independent insertions of Tnp2, a new retrotransposon closely related to the tobacco Tnt1 elements, were detected in the nitrate reductase gene. These two Tnp2 elements are members of the Tnt1B subfamily which shows that Tnt1B elements can be active and mutagenic in the N. plumbaginifolia genome. Furthermore, these results suggest that Tnt1B is the most active family of Tntl elements in N. plumbaginifolia, whereas in tobacco only members of the Tnt1A subfamily were found inserted in the nitrate reductase gene. The transcriptional regulations of Tnp2 and Tnt1A elements are most probably different due to non-conserved U3 regions. Our results thus support the hypothesis that different Nicotiana species contain different active Tntl subfamilies and that only one active Tntl subfamily might be maintained in each of these species. The Tnp2 insertion found in the F97 mutant was found to be spliced out of the nitrate reductase mRNA by activation of cryptic donor and acceptor sites in the nitrate reductase and the Tnp2 sequences respectively.
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