Search Results - "Rossignol, J.L."

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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Synthesis and receptor binding of polynuclear organometallic estradiol derivatives by Vessieres, A, Jaouen, G, Gruselle, M, Rossignol, J L, Savignac, M, Top, S, Greenfield, S

“…Twelve novel organometallic derivatives of estradiol were synthesized with the aim of utilizing organometallic cold bioprobes as radioisotopic labels…”
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Gene conversion: point-mutation heterozygosities lower heteroduplex formation by Nicolas, A, Rossignol, J.L

“…The effects of heterozygosity on meiotic gene conversion characteristics have been studied in the fungus Ascobolus immersus. The non‐Mendelian segregation…”
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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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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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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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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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interaction during recombination between closely linked allelic frameshift mutant sites in Ascobolus immersus. II. A and B type mutant sites by Leblon, G, Rossignol, J.L

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Reciprocal exchanges instigated by large heterologies in the b2 gene of Ascobolus are not associated with long adjacent hybrid DNA stretches by Langin, T, Hamza, H, Haedens, V, Rossignol, J.L

“…In the gene b2 of Ascobolus immersus, large heterologies increase the frequencies of reciprocal exchanges on their upstream border (corresponding to the high…”
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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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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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Evidence for independent mismatch corrections along the same hybrid DNA tract during meiotic recombination in Ascobolus by Kalogeropoulos, A, Rossignol, J.L

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Disparity of gene conversion in frameshift mutants located in locus b2 of Ascobolus immersus [Fungi] by Rossignol, J.L, Paquette, N

“…The frequency of conversion and the disparity in the direction of conversion were studied for six frameshift mutants lying in locus b2 of Ascobolus immersus…”
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interaction during recombination between closely linked allelic frameshift mutant sites in Ascobolus immersus I. a (or B) and C type mutant sites by Rossignol, J.L, Haedens, V

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