ArticleBMC plant biology2009
Molecular characterization of a rice mutator-phenotype derived from an incompatible cross-pollination reveals transgenerational mobilization of multiple transposable elements and extensive epigenetic instability.
Article in BMC plant biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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20 citing papers in PubMed, 41 citations in OpenAlex.
- Genome-wide characterization and evolution analysis of miniature inverted-repeat transposable elements in Barley (Frontiers in plant science · 2024Article
- The Genomic Shock Hypothesis: Genetic and Epigenetic Alterations of Transposable Elements after Interspecific Hybridization in Plants.Epigenomes · 2023Review
- Specific suppression of long terminal repeat retrotransposon mobilization in plants.Plant physiology · 2023Article
- Epigenetic variation: A major player in facilitating plant fitness under changing environmental conditions.Frontiers in cell and developmental biology · 2022Review
- Extensively Current Activity of Transposable Elements in Natural Rice Accessions Revealed by Singleton Insertions.Frontiers in plant science · 2021Article
- Article
- Spike-Stalk Injection Method Causes Extensive Phenotypic and Genotypic Variations for Rice Germplasm.Frontiers in plant science · 2020Article
- Whole Genome Incorporation and Epigenetic Stability in a Newly Synthetic Allopolyploid of Gynogenetic Gibel Carp.Genome biology and evolution · 2018Article
- The gymnastics of epigenomics in rice.Plant cell reports · 2018Review
- Tracking the genome-wide outcomes of a transposable element burst over decades of amplification.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
- Inter-individual variation in DNA methylation is largely restricted to tissue-specific differentially methylated regions in maize.BMC plant biology · 2017Article
- Review
- Environmentally induced epigenetic transgenerational inheritance of sperm epimutations promote genetic mutations.Epigenetics · 2015Article
- Abiotic stress and genome dynamics: specific genes and transposable elements response to iron excess in rice.Rice (New York, N.Y.) · 2015Article
- Epigenetic control of mobile DNA as an interface between experience and genome change.Frontiers in genetics · 2014Review
- Genomewide variation in an introgression line of rice-Zizania revealed by whole-genome re-sequencing.PloS one · 2013Article
- Transpositional reactivation of the Dart transposon family in rice lines derived from introgressive hybridization with Zizania latifolia.BMC plant biology · 2010Article
- Mobile DNA and evolution in the 21st century.Mobile DNA · 2010Article
- Progress and Promise in using Arabidopsis to Study Adaptation, Divergence, and Speciation.The arabidopsis book · 2010Article
- Tissue culture-induced variation at simple sequence repeats in sorghum (Sorghum bicolor L.) is genotype-dependent and associated with down-regulated expression of a mismatch repair gene, MLH3.Plant cell reports · 2010Article
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9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundInter-specific hybridization occurs frequently in plants, which may induce genetic and epigenetic instabilities in the resultant hybrids, allopolyploids and introgressants. It remains unclear however whether pollination by alien pollens of an incompatible species may impose a "biological stress" even in the absence of genome-merger or genetic introgression, whereby genetic and/or epigenetic instability of the maternal recipient genome might be provoked.
resultsWe report here the identification of a rice mutator-phenotype from a set of rice plants derived from a crossing experiment involving two remote and apparently incompatible species, Oryza sativa L. and Oenothera biennis L. The mutator-phenotype (named Tong211-LP) showed distinct alteration in several traits, with the most striking being substantially enlarged panicles. Expectably, gel-blotting by total genomic DNA of the pollen-donor showed no evidence for introgression. Characterization of Tong211-LP (S0) and its selfed progenies (S1) ruled out contamination (via seed or pollen) or polyploidy as a cause for its dramatic phenotypic changes, but revealed transgenerational mobilization of several previously characterized transposable elements (TEs), including a MITE (mPing), and three LTR retrotransposons (Osr7, Osr23 and Tos17). AFLP and MSAP fingerprinting revealed extensive, transgenerational alterations in cytosine methylation and to a less extent also genetic variation in Tong211-LP and its immediate progenies. mPing mobility was found to correlate with cytosine methylation alteration detected by MSAP but not with genetic variation detected by AFLP. Assay by q-RT-PCR of the steady-state transcript abundance of a set of genes encoding for the various putative DNA methyltransferases, 5-methylcytosine DNA glycosylases, and small interference RNA (siRNA) pathway-related proteins showed that, relative to the rice parental line, heritable perturbation in expression of 12 out of the 13 genes occurred in the mutator-phenotype and its sefled progenies.
conclusionTransgenerational epigenetic instability in the form of altered cytosine methylation and its associated TE activity occurred in a rice mutator-phenotype produced by pollinating the rice stigma with pollens of O. biennis. Heritably perturbed homeostatic expression-state of genes involved in maintenance of chromatin structure is likely an underlying cause for the alien pollination-induced transgenerational epigenetic/genetic instability, and which occurred apparently without entailing genome merger or genetic introgression.
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