Search Results - "Matzke, M A"

Transcriptional silencing and promoter methylation triggered by double-stranded RNA by Mette, M.F., Aufsatz, W., van der Winden, J., Matzke, M.A., Matzke, A.J.M.

“…Double‐stranded RNA induces a post‐transcriptional gene silencing process, termed RNAi, in diverse organisms. It is shown here that transcriptional gene…”
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How and why do plants inactivate homologous (trans)genes? by Matzke, M.A. (Austrian Academy of Sciences, Salzburg, Austria.), Matzke, A.J.M

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Integrated pararetroviral sequences define a unique class of dispersed repetitive DNA in plants by Jakowitsch, J, Mette, M.F, Winden, J. van der, Matzke, M.A, Matzke, A.J.M

“…Although integration of viral DNA into host chromosomes occurs regularly in bacteria and animals, there are few reported cases in plants, and these involve…”
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Transgene silencing by the host genome defense: implications for the evolution of epigenetic control mechanisms in plants and vertebrates by Matzke, M A, Mette, M F, Matzke, A J

“…Increasing evidence supports the idea that various transgene silencing phenomena reflect the activity of diverse host defense responses that act ordinarily on…”
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Endogenous viral sequences and their potential contribution to heritable virus resistance in plants by Mette, M.F., Kanno, T., Aufsatz, W., Jakowitsch, J., van der Winden, J., Matzke, M.A., Matzke, A.J.M.

“…Tobacco endogenous pararetroviruses (TEPRVs) represent the first virus‐derived repetitive sequence family found in plants. The sequence conservation of TEPRVs…”
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Gene silencing mediated by promoter homology occurs at the level of transcription and results in meiotically heritable alterations in methylation and gene activity by Park, Y.‐D., Papp, I., Moscone, E.A., Iglesias, V.A., Vaucheret, H., Matzke, A.J.M., Matzke, M.A.

“…The promoter homology‐dependent inactivation of a 35Spro‐hygromycin phosphotransferase (hpt) gene, which is present at the H2 locus, by the multipurpose 271…”
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Reversible methylation and inactivation of marker genes in sequentially transformed tobacco plants by Matzke, M. A., Primig, M., Trnovsky, J., Matzke, A. J. M.

“…Doubly transformed tobacco plants were obtained following sequential transformation steps using two T‐DNAs encoding different selection and screening markers:…”
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Exploring and explaining epigenetic effects by Henikoff, Steven, Matzke, Marjori A.

“…Epigenetic phenomena in diverse organisms comprise some of the most intriguing and actively investigated problems in genetics. The term `epigenetics' was…”
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Epigenetic silencing of plant transgenes as a consequence of diverse cellular defence responses by Matzke, M A, Matzke, A J

“…Linked and unlinked copies of transgenes and related endogenous genes in plants can be epigenetically silenced by homology-based mechanisms that operate at…”
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Production of aberrant promoter transcripts contributes to methylation and silencing of unlinked homologous promoters in trans by Mette, M.F, Winden, J. van der, Matzke, M.A, Matzke, A.J.M

“…Previous work has suggested that de novo methylation of plant nuclear genes can be triggered by an RNA–DNA interaction. To test whether transcription of a…”
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Rapid structural and epigenetic changes in polyploid and aneuploid genomes by Matzke, M.A., Scheid, O. Mittelsten, Matzke, A.J.M.

“…Recent work with plants has demonstrated that genome instability can be triggered by a change in chromosome number arising from either whole genome…”
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The use of combined FISH/GISH in conjunction with DAPI counterstaining to identify chromosomes containing transgene inserts in amphidiploid tobacco by Moscone, E A, Matzke, M A, Matzke, A J

“…We have used combined fluorescent and genomic in situ hybridization (FISH/GISH) together with 4',6-diamidino-2-phenylindole (DAPI) counterstaining to determine…”
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Homology-dependent gene silencing in transgenic plants: what does it really tell us? by Matzke, M.A., Matzke, A.J.M.

“…Few recent developments have created more of a stir among plant molecular biologists than the discovery that the presence of multiple copies of homologous…”
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Host defenses to transposable elements and the evolution of genomic imprinting by McDonald, J F, Matzke, M A, Matzke, A J

“…Genomic imprinting is the differential expression of maternally and paternally inherited alleles of specific genes. Several organismic level hypotheses have…”
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Resistance of RNA-mediated TGS to HC-Pro, a viral suppressor of PTGS, suggests alternative pathways for dsRNA processing by Mette, M.F, Matzke, A.J.M, Matzke, M.A

“…In plants, double-stranded (ds) RNA that is degraded to small (sm) RNAs that are ∼23 nucleotides in length can trigger the degradation of homologous RNAs in…”
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Polyploidy and transposons by Matzke, M.A, Matzke, A.J.M

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Differential inactivation and methylation of a transgene in plants by two suppressor loci containing homologous sequences by Matzke, M.A, Matzke, A.J.M

“…In a previous study on doubly transformed tobacco plants, we observed the unexpected inactivation in trans of T-DNA-I (encoding KanrNOS) following the…”
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Cloning Problems Don't Surprise Plant Biologists by Matzke, M. A., Matzke, A. J. M.

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Homology-dependent gene silencing in transgenic plants: epistatic silencing loci contain multiple copies of methylated transgenes by Matzke, A J, Neuhuber, F, Park, Y D, Ambros, P F, Matzke, M A

“…Previous work has shown that two homologous, unlinked transgene loci can interact in plant nuclei, leading to non-reciprocal trans-inactivation and methylation…”
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Epigenetics: Regulation Through Repression by Wolffe, Alan P., Matzke, Marjori A.

“…Epigenetics is the study of heritable changes in gene expression that occur without a change in DNA sequence. Epigenetic phenomena have major economic and…”
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