Search Results - "Rossignol, J. L"

Suppression of crossing-over by DNA methylation in Ascobolus by Maloisel, L, Rossignol, J L

“…Homologous recombination between dispersed DNA repeats creates chromosomal rearrangements that are deleterious to the genome. The methylation associated with…”
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Eukaryotic DNA methylation as an evolutionary device by Colot, Vincent, Rossignol, Jean-Luc

“…DNA methylation is catalyzed by a family of conserved DNA methyltransferases and is widespread among protists, plants, fungi and animals. It is however absent…”
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Methylation Induced Premeiotically in Ascobolus: Coextension with DNA Repeat Lengths and Effect on Transcript Elongation by Barry, Caroline, Faugeron, Godeleine, Rossignol, Jean-Luc

“…The effect of duplications of gene fragments on the triggering of DNA methylation induced premeiotically (MIP) was studied in the sexual progeny of strains…”
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Interchromosomal Transfer of Epigenetic States in Ascobolus: Transfer of DNA Methylation Is Mechanistically Related to Homologous Recombination by Colot, Vincent, Maloisel, Laurent, Rossignol, Jean-Luc

“…The transfer of methylation between alleles represents a plausible epigenetic mutational mechanism to explain loss of imprinting in mammals and paramutation in…”
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Epimutation of repeated genes in Ascobolus immersus by Rhounim, L., Rossignol, J.L., Faugeron, G.

“…Ascobolus immersus artificial gene repeats were shown previously to be subject premeiotically to both cytosine methylation and inactivation. We studied sexual…”
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Gene inactivation triggered by recognition between DNA repeats by Rossignol, J L, Faugeron, G

“…This chapter focuses on phenomena of gene inactivation resulting from the presence of repeated gene copies within the genome of plants and fungi, and on their…”
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Extensive, nonrandom diversity of excision footprints generated by Ds-like transposon Ascot-1 suggests new parallels with V(D)J recombination by Colot, V, Haedens, V, Rossignol, J L

“…Upon insertion, transposable elements can disrupt or alter gene function in various ways. Transposons moving through a cut-and-paste mechanism are in addition…”
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How does the cell count the number of ectopic copies of a gene in the premeiotic inactivation process acting in Ascobolus immersus? by Faugeron, G. (C.N.R.S. Universite Paris-Sud, Orsay, France), Rhounim, L, Rossignol, J.L

“…Repeated genes, artificially introduced in Ascobolus immersus by integrative transformation, are frequently inactivated during the sexual phase. Inactivation…”
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Native DNA repeats and methylation in Ascobolus by Goyon, C, Rossignol, J.L, Faugeron, G

“…We identified two classes of native dispersed DNA repeats in the Ascobolus genome. The first class consisted of several kilobase long, methylated repeats…”
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Isolation of the Ascobolus immersus spore color gene b2 and study in single cells of gene silencing by methylation induced premeiotically by Colot, V, Rossignol, J. L

“…The ascomycete Ascobolus immersus has been extensively used as a model system for the genetic study of meiotic recombination. More recently, an epigenetic…”
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Methylation of DNA repeats of decreasing sizes in Ascobolus immersus by Goyon, C, Barry, C, Grégoire, A, Faugeron, G, Rossignol, J L

“…Article Usage Stats Services MCB Citing Articles Google Scholar PubMed Related Content Social Bookmarking CiteULike Delicious Digg Facebook Google+ Mendeley…”
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A Gene Essential for De Novo Methylation and Development in Ascobolus Reveals a Novel Type of Eukaryotic DNA Methyltransferase Structure by Malagnac, Fabienne, Wendel, Birgit, Goyon, Christophe, Faugeron, Godeleine, Zickler, Denise, Rossignol, Jean-Luc, Noyer-Weidner, Mario, Vollmayr, Peter, Trautner, Thomas A, Walter, Jörn

“…Molecular mechanisms determining methylation patterns in eukaryotic genomes still remain unresolved. We have characterized, in Ascobolus, a gene for de novo…”
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Masc2, a gene from Ascobolus encoding a protein with a DNA-methyltransferase activity in vitro, is dispensable for in vivo methylation by Malagnac, F, Gregoire, A, Goyon, C, Rossignol, J.L, Faugeron, G

“…We have shown previously that masc1, a gene encoding a putative C5‐DNA‐methyltransferase (MTase), was necessary for the de novo‘Methylation Induced…”
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MIP: an epigenetic gene silencing process in Ascobolus immersus by Rossignol, J L, Faugeron, G

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Premeiotic and meiotic instability generates numerous b2 mutation derivatives in Ascobolus by Nicolas, A, Hamza, H, Mekki-Berrada, A, Kalogeropoulos, A, Rossignol, J.L

“…We have studied the genetic characteristics of an unstable mutation located in the central region of the b2 gene of the fungus Ascobolus. In crosses to wild…”
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Molecular cloning and characterization of the met2 gene from Ascobolus immersus by Goyon, C, Faugeron, G, Rossignol, J L

“…We have cloned the met2 gene from Ascobolus immersus by heterologous hybridization with the MET2 gene of Saccharomyces cerevisiae. This gene codes for the…”
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Histone H1 is dispensable for methylation-associated gene silencing in Ascobolus immersus and essential for long life span by Barra, J L, Rhounim, L, Rossignol, J L, Faugeron, G

“…A gene encoding a protein that shows sequence similarity with the histone H1 family only was cloned in Ascobolus immersus. The deduced peptide sequence…”
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Large heterologies impose their gene conversion pattern onto closely linked point mutations by Hamza, H, Nicolas, A, Rossignol, J.L

“…We have studied the meiotic non-Mendelian segregation (NMS) pattern of seven large heterologous combinations located in the b2 ascospore gene of Ascobolus. The…”
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Hybrid DNA tracts may start at different sites during meiotic recombination in gene b2 of Ascobolus by Kalogeropoulos, A., Rossignol, J. L.

“…The initiation of hybrid DNA in the b2 spore colour gene was investigated by the analysis of non‐Mendelian segregation asci in the progeny of crosses involving…”
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Origins of gene conversion and reciprocal exchange in Ascobolus by Rossignol, J L, Nicolas, A, Hamza, H, Langin, T

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