Altered fidelity of mitotic chromosome transmission in cell cycle mutants of S. cerevisiae.

abstract：:The decrease of meiotic exchanges (crossing over and conversion) in two mutants of Sordaria macrospora correlated strongly with a reduction of chiasmata and of both types of "recombination nodules." Serial section reconstruction electron microscopy was used to compare the synapsis pattern of meiotic prophase I in wild...

journal_title：Genetics

authors： Zickler D,Moreau PJ,Huynh AD,Slezec AM

更新日期：1992-09-01 00:00:00

abstract：:Adaptation from de novo mutation can produce so-called soft selective sweeps, where adaptive alleles of independent mutational origin sweep through the population at the same time. Population genetic theory predicts that such soft sweeps should be likely if the product of the population size and the mutation rate towa...

journal_title：Genetics

authors： Wilson BA,Petrov DA,Messer PW

更新日期：2014-10-01 00:00:00

abstract：:Translocation induced in the immature oocyte, in meiotic prophase, affects division I orientation and segregation, the usual result being that the two halves of translocations are directed to opposite poles. Since interchange is usually (if not exclusively) between chromatids, this is to be expected from the creation ...

journal_title：Genetics

authors： Parker DR,Williamson JH

更新日期：1974-09-01 00:00:00

abstract：:The SUF13 and SUF14 genes were identified among extragenic suppressors of +1 frameshift mutations. SUF13 is synonymous with MBF1, a single-copy nonessential gene coding for a POLII transcription factor. The suf13-1 mutation is a two-nucleotide deletion in the SUF13/MBF1 coding region. A suf13::TRP1 null mutant suppres...

journal_title：Genetics

authors： Hendrick JL,Wilson PG,Edelman II,Sandbaken MG,Ursic D,Culbertson MR

更新日期：2001-03-01 00:00:00

abstract：:A genetic linkage map was constructed in a backcross family of the red flour beetle, Tribolium castaneum, based largely on sequences from bacterial artificial chromosome (BAC) ends and untranslated regions from random cDNA's. In most cases, dimorphisms were detected using heteroduplex or single-strand conformational p...

journal_title：Genetics

authors： Lorenzen MD,Doyungan Z,Savard J,Snow K,Crumly LR,Shippy TD,Stuart JJ,Brown SJ,Beeman RW

更新日期：2005-06-01 00:00:00

abstract：:We showed that sufficient overexpression of the wild-type recF gene interfered with three normal cell functions: (1) UV induction of transcription from the LexA-protein-repressed sulA promoter, (2) UV resistance and (3) cell viability at 42 degrees. To show this, we altered a low-level overexpressing recF+ plasmid wit...

journal_title：Genetics

authors： Sandler SJ,Clark AJ

更新日期：1993-11-01 00:00:00

abstract：:Key steps of essential metabolic pathways are housed in plant peroxisomes. We conducted a microscopy-based screen for anomalous distribution of peroxisomally targeted fluorescence in Arabidopsis thaliana This screen uncovered 34 novel alleles in 15 genes affecting oil body mobilization, fatty acid β-oxidation, the gly...

journal_title：Genetics

authors： Rinaldi MA,Patel AB,Park J,Lee K,Strader LC,Bartel B

更新日期：2016-11-01 00:00:00

abstract：:Remarkably complex patterns of aneuploidy have been observed in the genomes of many eukaryotic cell types, ranging from brewing yeasts to tumor cells. Such aberrant karyotypes are generally thought to take shape progressively over many generations, but evidence also suggests that genomes may undergo faster modes of ev...

journal_title：Genetics

authors： Heasley LR,Watson RA,Argueso JL

更新日期：2020-09-01 00:00:00

abstract：:The phenomenon of heterosis describes the increased agronomic performance of heterozygous F(1) plants compared to their homozygous parental inbred plants. Heterosis is manifested during the early stages of root development in maize. The goal of this study was to identify nonadditive gene expression in primary roots of...

journal_title：Genetics

authors： Hoecker N,Keller B,Muthreich N,Chollet D,Descombes P,Piepho HP,Hochholdinger F

更新日期：2008-07-01 00:00:00

abstract：:In response to an external source of adenine, yeast cells repress the expression of purine biosynthesis pathway genes. To identify necessary components of this signalling mechanism, we have isolated mutants that are constitutively active for expression. These mutants were named bra (for bypass of repression by adenine...

journal_title：Genetics

authors： Guetsova ML,Lecoq K,Daignan-Fornier B

更新日期：1997-10-01 00:00:00

abstract：:The change in frequencies of D. melanogaster and D. simulans in competition experiments was used to measure the effect of radiation on the fitness of a population. A dose of 250 or 500 rads given to the males of highly inbred lines of D. simulans at the beginning of competition and every three weeks thereafter increas...

journal_title：Genetics

authors： Blaylock BG,Shugart HH Jr

更新日期：1972-11-01 00:00:00

abstract：:Mapping of expression quantitative trait loci (eQTL) is a powerful means for elucidating the genetic architecture of gene regulation. Yet, eQTL mapping has not been applied toward investigating the regulation architecture of genes involved in the process of population divergence, ultimately leading to speciation event...

journal_title：Genetics

authors： Derome N,Bougas B,Rogers SM,Whiteley AR,Labbe A,Laroche J,Bernatchez L

更新日期：2008-08-01 00:00:00

abstract：:During induction of the Caenorhabditis elegans hermaphrodite vulva by the anchor cell of the gonad, six multipotent vulval precursor cells (VPCs) have two distinct fates: three VPCs generate the vulva and the other three VPCs generate nonspecialized hypodermis. Genes that control the fates of the VPCs in response to t...

journal_title：Genetics

authors： Han M,Aroian RV,Sternberg PW

更新日期：1990-12-01 00:00:00

abstract：:Transvection is the phenomenon where a transcriptional enhancer activates a promoter located on the homologous chromosome. It has been amply documented in Drosophila where homologs are closely paired in most, if not all, somatic nuclei, but it has been known to rarely occur in mammals as well. We have taken advantage ...

journal_title：Genetics

authors： Piwko P,Vitsaki I,Livadaras I,Delidakis C

更新日期：2019-06-01 00:00:00

abstract：:We use the ancestral influence graph (AIG) for a two-locus, two-allele selection model in the limit of a large population size to obtain an analytic approximation for the probability of ultimate fixation of a single mutant allele A. We assume that this new mutant is introduced at a given locus into a finite population...

journal_title：Genetics

authors： Lessard S,Kermany AR

更新日期：2012-02-01 00:00:00

abstract：:Extensive length polymorphism and heteroplasmy (multiple forms within an individual) of the D-loop region are observed in mitochondrial DNA of the white sturgeon (Acipenser transmontanus). The nucleotide sequence of this region, for both a short and a long form, shows that the differences are due to variable numbers o...

journal_title：Genetics

authors： Buroker NE,Brown JR,Gilbert TA,O'Hara PJ,Beckenbach AT,Thomas WK,Smith MJ

更新日期：1990-01-01 00:00:00

abstract：:Crossovers (COs) between homologous chromosomes are critical for meiotic chromosome segregation and form in the context of the synaptonemal complex (SC), a meiosis-specific structure that assembles between aligned homologs. During Caenorhabditis elegans meiosis, central region components of the SC (SYP proteins) are e...

journal_title：Genetics

authors： Cahoon CK,Helm JM,Libuda DE

更新日期：2019-10-01 00:00:00

abstract：:Dauer formation in Caenorhabditis elegans is induced by chemosensation of high levels of a constitutively secreted pheromone. Seven genes defined by mutations that confer a dauer-formation constitutive phenotype (Daf-c) can be congruently divided into two groups by any of three criteria. Group 1 genes (daf-11 and daf-...

journal_title：Genetics

authors： Thomas JH,Birnby DA,Vowels JJ

更新日期：1993-08-01 00:00:00

abstract：:Animal microRNAs (miRNA) are implicated in the control of nearly all cellular functions. Due to high sequence redundancy within the miRNA gene pool, loss of most of these 21- to 24-bp long RNAs individually does not cause a phenotype. Thus, only very few miRNAs have been associated with clear functional roles. We cons...

journal_title：Genetics

authors： Schertel C,Rutishauser T,Förstemann K,Basler K

更新日期：2012-12-01 00:00:00

abstract：:In meiosis, multiple different DNA sequence motifs help to position homologous recombination at hotspots in the genome. How do the seemingly disparate cis-acting regulatory modules each promote locally the activity of the basal recombination machinery? We defined molecular mechanisms of action for five different hotsp...

journal_title：Genetics

authors： Mukiza TO,Protacio RU,Davidson MK,Steiner WW,Wahls WP

更新日期：2019-11-01 00:00:00

abstract：:All living organisms require nutrient minerals for growth and have developed mechanisms to acquire, utilize, and store nutrient minerals effectively. In the aqueous cellular environment, these elements exist as charged ions that, together with protons and hydroxide ions, facilitate biochemical reactions and establish ...

journal_title：Genetics

authors： Cyert MS,Philpott CC

更新日期：2013-03-01 00:00:00

abstract：:We study levels of X-linked vs. autosomal diversity using a model developed to analyze the hitchhiking effect. Repeated bouts of hitchhiking are thought to lower X-linked diversity for two reasons: first, because sojourn times of beneficial mutations are shorter on the X, and second, because adaptive substitutions may...

journal_title：Genetics

authors： Betancourt AJ,Kim Y,Orr HA

更新日期：2004-12-01 00:00:00

abstract：:The Genetics Society of America's (GSA) Edward Novitski Prize is awarded to researchers who have solved challenging problems in genetics through experiments that demonstrate exceptional creativity and ingenuity. Job Dekker of the University of Massachusetts Medical School has been selected for the 2018 award in recogn...

journal_title：Genetics

authors： Haloupek N

更新日期：2018-11-01 00:00:00

abstract：:Microsatellites are tandemly repeated short DNA sequences that are favored as molecular-genetic markers due to their high polymorphism index. Plant genomes characterized to date exhibit taxon-specific differences in frequency, genomic location, and motif structure of microsatellites, indicating that extant microsatell...

journal_title：Genetics

authors： Mun JH,Kim DJ,Choi HK,Gish J,Debellé F,Mudge J,Denny R,Endré G,Saurat O,Dudez AM,Kiss GB,Roe B,Young ND,Cook DR

更新日期：2006-04-01 00:00:00

abstract：:When individuals' fitnesses depend on the genetic composition of the population in which they are found, selection is then frequency dependent. Frequency-dependent selection (FDS) is often invoked as a heuristic explanation for the maintenance of large numbers of alleles at a locus. The pairwise interaction model is a...

journal_title：Genetics

authors： Trotter MV,Spencer HG

更新日期：2007-07-01 00:00:00

abstract：:RNA polymerase II (RNAPII) in eukaryotic cells drives transcription of most messenger RNAs. RNAPII core enzyme is composed of 12 polypeptides where Rpb1 is the largest subunit. To further understand the mechanisms of RNAPII transcription, we isolated and characterized novel point mutants of RPB1 that are sensitive to ...

journal_title：Genetics

authors： Malagon F,Kireeva ML,Shafer BK,Lubkowska L,Kashlev M,Strathern JN

更新日期：2006-04-01 00:00:00

abstract：:The occurrence and patterns of linkage disequilibrium between an inversion and allozymic loci within it or nearby have been used in attempts to discriminate among different hypotheses for the maintenance of variability. The interpretation of the data on the best-documented case, that of the nonrandom association betwe...

journal_title：Genetics

authors： Malpica JM,Vassallo JM,Frías A,Fuentes-Bol F

更新日期：1987-01-01 00:00:00

abstract：:Genome-wide association studies (GWAS) have been widely used for identifying common variants associated with complex diseases. Despite remarkable success in uncovering many risk variants and providing novel insights into disease biology, genetic variants identified to date fail to explain the vast majority of the heri...

journal_title：Genetics

authors： Huang J,Wang K,Wei P,Liu X,Liu X,Tan K,Boerwinkle E,Potash JB,Han S

更新日期：2016-03-01 00:00:00

abstract：:The need to regulate X chromosome expression in Caenorhabditis elegans arises as a consequence of the primary sex-determining signal, the X/A ratio (the ratio of X chromosomes to sets of autosomes), which directs 1X@A animals to develop as males and 2X/2A animals to develop as hermaphrodites. C. elegans possesses a do...

journal_title：Genetics

authors： Hsu DR,Meyer BJ

更新日期：1994-08-01 00:00:00

abstract：:The double-strand break repair models for homologous recombination propose that a double-strand break in a duplex DNA segment is repaired by gene conversion copying a homologous DNA segment. This is a type of conservative recombination, or two-progeny recombination, which generates two duplex DNA segments from two dup...

journal_title：Genetics

authors： Yokochi T,Kusano K,Kobayashi I

更新日期：1995-01-01 00:00:00