Enhanced canavanine uptake is associated with nucleotide permeability in a thymidylate auxotroph of Saccharomyces cerevisiae.

abstract：:The wheat mitochondrial (mt) cox3 has been localized and sequenced. The gene exists as a single copy in the wheat mt master chromosome and is transcribed into a single 1.2 kb RNA, whose extremities have been mapped. Comparison of the wheat and Oenothera cox3 sequences gives ambiguous indications concerning the amino a...

journal_title：Current genetics

authors： Gualberto JM,Domon C,Weil JH,Grienenberger JM

更新日期：1990-01-01 00:00:00

abstract：:Adaptation by natural selection might improve the fitness of an organism and its probability to survive in unfavorable environmental conditions. Decoding the genetic basis of adaptive evolution is one of the great challenges to deal with. To this purpose, Saccharomyces cerevisiae has been largely investigated because ...

journal_title：Current genetics

authors： Tosato V,Sims J,West N,Colombin M,Bruschi CV

更新日期：2017-05-01 00:00:00

abstract：:The isoprenoid pathway of the ectomycorrhizal fungus Tuber borchii Vittad is investigated to better understand the molecular mechanisms at work, in particular during the maturation of the complex ascomata (the so-called "truffles"). Three T. borchii genes coding for the most important regulatory enzymes of the isopren...

journal_title：Current genetics

authors： Guidi C,Zeppa S,Annibalini G,Pierleoni R,Guescini M,Buffalini M,Zambonelli A,Stocchi V

更新日期：2006-12-01 00:00:00

abstract：:A cluster of three tRNA genes located on fragment Bam6a from Vicia faba chloroplast DNA has been sequenced: it contains the genes for tRNA(CAALeu), tRNA(UAALeu) and tRNA(Phe). The two tRNA(Leu) genes are separated by 443 bp and are transcribed divergently from different DNA strands. The intergenic region contains a se...

journal_title：Current genetics

authors： Bonnard G,Weil JH,Steinmetz A

更新日期：1985-01-01 00:00:00

abstract：:The PEL1 gene of Saccharomyces cerevisiae is essential for the cell viability of mitochondrial petite mutants, for the ability to utilize glycerol and ethanol on synthetic medium, and for cell growth at higher temperatures. By tetrad analysis the gene was assigned to chromosome III, centromere proximal of LEU2. The PE...

journal_title：Current genetics

authors： Janitor M,Subík J

更新日期：1993-10-01 00:00:00

abstract：:Broad bean (Vicia faba) mitochondrial DNA (mtDNA) includes three circular plasmids: mt-plasmid 1 (1,704 ntp), mt-plasmid 2 (1,695 ntp) and mt-plasmid 3 (1,476 ntp). Partially replicated circular forms of these mt-plasmids have been observed in electron microscope preparations. Restriction enzymes that cleave either mt...

journal_title：Current genetics

authors： Wahleithner JA,Wolstenholme DR

更新日期：1988-08-01 00:00:00

abstract：:The unicellular green alga Chlamydomonas reinhardtii has emerged as a superb model species in plant biology. Although the alga is easily transformable, the low efficiency of transgene expression from the Chlamydomonas nuclear genome has severely hampered functional genomics research. For example, poor transgene expres...

journal_title：Current genetics

authors： Shao N,Bock R

更新日期：2008-06-01 00:00:00

abstract：:We previously reported the isolation of mutants hypersensitive to the genotoxic agent 4-nitroquinoline-1-oxide, a potent inducer of oxidative stress. One of the mutants was defective in a gene designated yPTPA1, encoding a protein related to the human phosphotyrosyl phosphatase activator hPTPA, which is believed to pl...

journal_title：Current genetics

authors： Douville J,David J,Fortier PK,Ramotar D

更新日期：2004-08-01 00:00:00

abstract：:Mutants resistant to 200 micrograms/ml of the alkaloid lycorine (LYCR) in non-fermentable substrate were isolated after nitrosoguanidine mutagenesis. Tetrad analysis and growth of heterozygous (LYCR/lycS) diploids from two different mutants revealed that a single nuclear and dominant mutation is responsible for the re...

journal_title：Current genetics

authors： Del Giudice L,Massardo DR,Manna F,Wolf K

更新日期：1986-01-01 00:00:00

abstract：:The RAD50 gene in yeast is required for recombination-repair (i.e., the double strand break repair pathway) in mitosis, and for meiotic recombination and sporulation. Both of these processes are complex and seem likely to require a relatively large number of gene products. In order to help define other genes required ...

journal_title：Current genetics

authors： Malone RE,Jordan K,Wardman W

更新日期：1985-01-01 00:00:00

abstract：:The nucleotide sequences of the plastidal psbD genes of Bumilleriopsis filiformis and Porphyridium purpureum (encoding the D2 protein of photosystem II) are reported in this paper. The Bumilleriopsis sequence clusters together with Porphyridium when a most parsimonious protein tree of D2 sequences is constructed. A co...

journal_title：Current genetics

authors： Scherer S,Lechner S,Böger P

更新日期：1993-11-01 00:00:00

abstract：:Five haploid monokaryons of the basidiomycete Coprinus cinereus were already known to be unable to form sclerotia (asexual resting structures) on the vegetative monokaryotic mycelium. Genetic analyses had shown that four distinct genes (symbolised scl were represented, all being "recessive" to their sclerotium-produci...

journal_title：Current genetics

authors： Moore D

更新日期：1981-05-01 00:00:00

abstract：:Cell fusion occurs regularly during the vegetative and sexual phases of the life cycle in filamentous fungi. Here, we present a simple and efficient method that can detect even rare hyphal fusion events. Using the homothallic ascomycete Sordaria macrospora as an experimental system, we developed a histone-assisted mer...

journal_title：Current genetics

authors： Rech C,Engh I,Kück U

更新日期：2007-11-01 00:00:00

abstract：:1. Nuclear mutants lacking cytochrome c l spectrum have been isolated. 2. The electron flow through the respiratory chain of the mutants is defect in the cytochrome bc 1-segment. 3. Complementation analysis has yielded two major complementation groups. 4. Tetrade analysis has established the two complementation groups...

journal_title：Current genetics

authors： Lang BF,Kaudewitz F

更新日期：1982-12-01 00:00:00

abstract：:Caffeine is a well known base analogue and is cytotoxic to both animal and yeast cells. There are two possible mechanisms by which yeast cells tolerate caffeine concentrations higher than normal, by mutation or by physiological adaptation. We have isolated novel caffeine-resistant mutants of S. pombe which define thre...

journal_title：Current genetics

authors： Benko Z,Miklos I,Carr AM,Sipiczki M

更新日期：1997-06-01 00:00:00

abstract：:A PCR-based technique, involving the random amplification of polymorphic DNA (RAPD), was used for assessing genomic variability among a wide range of culture collection strains of black Aspergilli and related species. The performance of this technique is compared with that of the two other genetic techniques most comm...

journal_title：Current genetics

authors： Megnegneau B,Debets F,Hoekstra RF

更新日期：1993-01-01 00:00:00

abstract：:Cochliobolus heterostrophus has alternate genes (MAT-1 and MAT-2) at its mating-type locus. Transformants of a MAT-1 or a MAT-2 strain carrying a transgene of opposite mating type can self and are dual maters; the transgene, however, promotes development of pseudothecia only, not ascospores. To determine if the reside...

journal_title：Current genetics

authors： Wirsel S,Turgeon BG,Yoder OC

更新日期：1996-02-01 00:00:00

abstract：:Sequences hybridizing to mitochondrial DNA probes from Saccharomyces cerevisiae have been mapped in six mitochondrial genomes from the Dekkera/Brettanomyces yeasts and in mtDNA from the closely related Eeniella nana. Sequence order for the 34.5 kbp mtDNA of E. nana is identical to that for mtDNAs from B. custersianus ...

journal_title：Current genetics

authors： Hoeben P,Clark-Walker GD

更新日期：1986-01-01 00:00:00

abstract：:During evolution, most of the bacterial genes from the ancestral endosymbiotic alpha-proteobacteria at the origin of mitochondria have been either lost or transferred to the nuclear genome. A crucial evolutionary step was the establishment of macromolecule import systems to allow the come back of proteins and RNAs int...

journal_title：Current genetics

authors： Duchêne AM,Pujol C,Maréchal-Drouard L

更新日期：2009-02-01 00:00:00

abstract：:Seven MboI fragments spanning the mitochondrial apocytochrome b gene in Saccharomyces cerevisiae strain D273-10B were cloned in the BamHI site of the integrative yeast vector YIp5 and the capacity for autonomous replication was subsequently assayed in yeast. The positive correlation found between the ars-like activity...

journal_title：Current genetics

authors： Delouya D,Bonjardim CA,Nobrega FG

更新日期：1987-01-01 00:00:00

abstract：:Wild-type Neurospora crassa, strain Singapore, was transformed with a N. crassa metallothionein promoter/protyrosinase fusion gene. Transformants produced tyrosinase during vegetative growth, as determined by Western analyses and activity assays. This is in sharp contrast to wild-type strains, where this enzyme is onl...

journal_title：Current genetics

authors： Kupper U,Linden M,Cao KZ,Lerch K

更新日期：1990-11-01 00:00:00

abstract：:Ime1 plays a pivotal role in the initiation of meiosis in a/alpha diploid cells of Saccharomyces cerevisiae. In the absence of glucose and nitrogen, IME1 expression is greater in a/alpha cells than in either a or alpha cells and therefore only a/alpha, but not a/a or alpha/alpha, cells are committed to sporulation. It...

journal_title：Current genetics

authors： Mizuno T,Nakazawa N,Remgsamrarn P,Kunoh T,Oshima Y,Harashima S

更新日期：1998-04-01 00:00:00

abstract：:The cloning and characterization of the Thcut1 gene, which encodes a cutinase protein of the biocontrol fungus Trichoderma harzianum T34, is reported. Cutinases, which are secreted enzymes that hydrolyse cutin, belong to a class of serine esterases able to hydrolyze fatty acid esters and emulsified triglycerides. The ...

journal_title：Current genetics

authors： Rubio MB,Cardoza RE,Hermosa R,Gutiérrez S,Monte E

更新日期：2008-12-01 00:00:00

abstract：:The meiotic recombination gene rec10, which encodes a region-specific activator of recombination in Schizosaccharomyces pombe, has been cloned by genetic complementation and its nucleotide sequence determined. The rec10 gene was identified in a 5.6-kb cloned fragment by partial-deletion and insertion experiments. The ...

journal_title：Current genetics

authors： Lin Y,Smith GR

更新日期：1995-04-01 00:00:00

abstract：:In eukaryotes, genomic DNA is packaged into the nucleus together with histone proteins, forming chromatin. The fundamental repeating unit of chromatin is the nucleosome, a naturally symmetric structure that wraps DNA and is the substrate for numerous regulatory post-translational modifications. However, the biological...

journal_title：Current genetics

authors： Ichikawa Y,Kaufman PD

更新日期：2019-04-01 00:00:00

abstract：:Cells of all living organisms contain complex signal transduction networks to ensure that a wide range of physiological properties are properly adapted to the environmental conditions. The fundamental concepts and individual building blocks of these signalling networks are generally well-conserved from yeast to man; y...

journal_title：Current genetics

authors： Smets B,Ghillebert R,De Snijder P,Binda M,Swinnen E,De Virgilio C,Winderickx J

更新日期：2010-02-01 00:00:00

abstract：:To gain a deeper insight into the evolution of mating-type genes from filamentous ascomycetes, a comprehensive sequence analysis of PCR-amplified sequences corresponding to A- and a-specific mating-type sequences was undertaken. The study included nine homothallic (compatible) and eight heterothallic (incompatible) me...

journal_title：Current genetics

authors： Pöggeler S

更新日期：1999-10-01 00:00:00

abstract：:Although cell division is usually portrayed as an equitable process by which a progenitor cell originates two identical daughter cells, there are multiple examples of asymmetric divisions that generate two cells that differ in their content, morphology and/or proliferative potential. The capacity of the cells to gener...

journal_title：Current genetics

authors： Manzano-López J,Monje-Casas F

更新日期：2020-08-01 00:00:00

abstract：:In fungi, vegetative incompatibility is a conspecific non-self recognition mechanism that restricts formation of viable heterokaryons when incompatible alleles of specific het loci interact. In Podospora anserina, three non-allelic incompatibility systems have been genetically defined involving interactions between he...

journal_title：Current genetics

authors： Chevanne D,Bastiaans E,Debets A,Saupe SJ,Clavé C,Paoletti M

更新日期：2009-02-01 00:00:00

abstract：:A class of large site-specific deletions (del-B) occurs with exceptionally-high frequencies of 10(-3) in the mitochondrial COX1 gene of Mn(2+)-treated yeast cells. This work shows that del-B deletions are associated with COX1 intron aI1. All five deletion mutants studied have their upstream end at the authentic 3' spl...

journal_title：Current genetics

authors： Weiller GF

更新日期：1994-11-01 00:00:00