Switching of a mating-type a mutant allele in budding yeast Saccharomyces cerevisiae.

abstract：:In multigene families, variation among loci and alleles can contribute to trait evolution. We explored patterns of functional and genetic variation in six duplicated Arabidopsis thaliana trypsin inhibitor (ATTI) loci. We demonstrate significant variation in constitutive and herbivore-induced transcription among ATTI l...

journal_title：Genetics

authors： Clauss MJ,Mitchell-Olds T

更新日期：2004-03-01 00:00:00

abstract：:Determining the patterns of DNA sequence variation in the human genome is a useful first step toward identifying the genetic basis of a common disease. A haplotype map (HapMap), aimed at describing these variation patterns across the entire genome, has been recently developed by the International HapMap Consortium. In...

journal_title：Genetics

authors： Liu T,Johnson JA,Casella G,Wu R

更新日期：2004-09-01 00:00:00

abstract：:Crossover interference in meiosis is often modeled via stationary renewal processes. Here we consider a new model to incorporate the known biological feature of "obligate chiasma" whereby in most organisms each bivalent almost always has at least one crossover. The initial crossover is modeled as uniformly distributed...

journal_title：Genetics

authors： Falque M,Mercier R,Mézard C,de Vienne D,Martin OC

更新日期：2007-07-01 00:00:00

abstract：:Data for Apis mellifera indicate that the P-3 proteins and one esterase enzyme are controlled by two genes, P-3 and Est, with two alleles each. The frequency of the P-3 alleles is different in the two subspecies (adansonii and ligustica), that for P-3(F) in Italian bees being 46.9% and in African 0.5%. The frequency o...

journal_title：Genetics

authors： Mestriner MA,Contel EP

更新日期：1972-12-01 00:00:00

abstract：:Interspecific hybridization in the genus Mus results in male sterility and X-linked placental dysplasia. We have generated several congenic laboratory mouse lines (Mus musculus) in which different parts of the maternal X chromosome were derived from M. spretus. A strict positive correlation between placental weight an...

journal_title：Genetics

authors： Hemberger MC,Pearsall RS,Zechner U,Orth A,Otto S,Rüschendorf F,Fundele R,Elliott R

更新日期：1999-09-01 00:00:00

abstract：:Sister-chromatid exchanges (SCE) were studied in allium cepa L. meristematic cells at the second and third divisions after BrdUrd-substitution during just the first or during the second and third cycles, respectively. The observed SCE nonreciprocal/reciprocal ratios detected at the third division in both experiments, ...

journal_title：Genetics

authors： Schvartzman JB,Cortés F,González-Fernández A,Gutiérrez C,López-Sáez JF

更新日期：1979-08-01 00:00:00

abstract：:Oligosyndactylism (Os) is a radiation-induced mutation on mouse chromosome 8 associated with early postimplantation lethality in homozygotes and abnormal development of the limbs and kidneys in heterozygotes. The recessive lethal effect of Os is due to a mitotic block of the embryonic cells that becomes apparent at th...

journal_title：Genetics

authors： Pravtcheva DD,Wise TL

更新日期：1996-12-01 00:00:00

abstract：:Mutants of Neurospora crassa have been isolated that lack the repressible alkaline phosphatase, but, unlike nuc-1 and nuc-2 mutants, are able to make the repressible acid phosphatase and the repressible phosphate permease under conditions of derepression (phosphate deprivation). The new mutants, called pho-2, map in L...

journal_title：Genetics

authors： Gleason MK,Metzenberg RL

更新日期：1974-10-01 00:00:00

abstract：:The mutation process at microsatellite loci typically occurs at high rates and with stepwise changes in allele sizes, features that may introduce bias when using classical measures of population differentiation based on allele identity (e.g., F(ST), Nei's Ds genetic distance). Allele size-based measures of differentia...

journal_title：Genetics

authors： Hardy OJ,Charbonnel N,Fréville H,Heuertz M

更新日期：2003-04-01 00:00:00

abstract：:We have studied a genome-wide set of single-nucleotide polymorphism (SNP) allele frequency measures for African-American, East Asian, and European-American samples. For this analysis we derived a simple, closed mathematical formulation for the spectrum of expected allele frequencies when the sampled populations have e...

journal_title：Genetics

authors： Marth GT,Czabarka E,Murvai J,Sherry ST

更新日期：2004-01-01 00:00:00

abstract：:Though much has been learned about the process of ovarian follicle maturation through studies of oogenesis in both vertebrate and invertebrate systems, less is known about how follicles form initially. In Drosophila, two somatic follicle stem cells (FSCs) in each ovariole give rise to all polar cells, stalk cells, and...

journal_title：Genetics

authors： Nystul T,Spradling A

更新日期：2010-02-01 00:00:00

abstract：:We explicitly solve and analyze a series of deterministic continent-island models to delimit the effects of pollen and seed migration on cytonuclear frequencies and disequilibria in random-mating, mixed-mating and self-fertilized populations. Given the critical assumption of maternal cytoplasmic inheritance, five majo...

journal_title：Genetics

authors： Asmussen MA,Schnabel A

更新日期：1991-07-01 00:00:00

abstract：:Microsatellite markers are extensively used to evaluate genetic diversity in natural or experimental evolving populations. Their high degree of polymorphism reflects their high mutation rates. Estimates of the mutation rates are therefore necessary when characterizing diversity in populations. As a complement to the c...

journal_title：Genetics

authors： Raquin AL,Depaulis F,Lambert A,Galic N,Brabant P,Goldringer I

更新日期：2008-08-01 00:00:00

abstract：:Using zinc-finger nucleases (ZFNs) to cleave the chromosomal target, we have achieved high frequencies of gene targeting in the Drosophila germline. Both local mutagenesis through nonhomologous end joining (NHEJ) and gene replacement via homologous recombination (HR) are stimulated by target cleavage. In this study we...

journal_title：Genetics

authors： Bozas A,Beumer KJ,Trautman JK,Carroll D

更新日期：2009-07-01 00:00:00

abstract：:Nontandem terminal chromosome duplications derived from N. crassa translocation T(I-->VI)NM103 give rise mitotically to some daughter nuclei which have become euploid by loss of one or the other of the two duplicated segments. Loss of the segment in normal sequence occurs as often as loss of the translocated segment. ...

journal_title：Genetics

authors： Turner BC

更新日期：1977-03-01 00:00:00

abstract：:The Drosophila mei-S332 gene acts to maintain sister-chromatid cohesion before anaphase II of meiosis in both males and females. By isolating and analyzing seven new alleles and a deficiency uncovering the mei-S332 gene we have demonstrated that the onset of the requirement for mei-S332 is not until late anaphase I. A...

journal_title：Genetics

authors： Kerrebrock AW,Miyazaki WY,Birnby D,Orr-Weaver TL

更新日期：1992-04-01 00:00:00

abstract：:We formalize the use of allele frequency and geographic information for the construction of gene trees at the intraspecific level and extend the concept of evolutionary parsimony to molecular variance parsimony. The central principle is to consider a particular gene tree as a variable to be optimized in the estimation...

journal_title：Genetics

authors： Excoffier L,Smouse PE

更新日期：1994-01-01 00:00:00

abstract：:We present here a molecular analysis of the region surrounding the structural gene encoding alcohol dehydrogenase (Adh) in 47 lines of Drosophila melanogaster that have each accumulated mutations for 300 generations. While these lines show a significant increase in variation of alcohol dehydrogenase enzyme activity co...

journal_title：Genetics

authors： Aquadro CF,Tachida H,Langley CH,Harada K,Mukai T

更新日期：1990-12-01 00:00:00

abstract：:Inactivation of the maternal or paternal X chromosome in a mammalian embryonic XX cell is believed to involve random choice between the two X's. We propose two alternative models. One suggests that choice is not random, while the other is consistent with random choice, but not one between two X's. ...

journal_title：Genetics

authors： Williams BR,Wu CT

更新日期：2004-07-01 00:00:00

abstract：:In random mating autopolyploid populations which have not reached equilibrium, two alleles may be interdependent as a result of the phenomenon of gametic recombination, i.e. the maintenance through successive gamete generations of an association of two alleles from the same gamete in a source reference generation. Any...

journal_title：Genetics

authors： Gallais A

更新日期：1974-03-01 00:00:00

abstract：:We describe here a new variant of transposon Tn10 especially adapted for transposon analysis of cloned yeast genes; it can equally well be used for analysis of prokaryotic genes. We have applied this element to analysis of the LEU2, RAD50, and CDC48 genes of Saccharomyces cerevisiae. This transposon, nicknamed mini-Tn...

journal_title：Genetics

authors： Huisman O,Raymond W,Froehlich KU,Errada P,Kleckner N,Botstein D,Hoyt MA

更新日期：1987-06-01 00:00:00

abstract：:An association was found earlier between the Ep(1) gene locus coding for an endopeptidase and the endosperm color gene Y(1) on chromosome 6 of Zea mays. By employing primary trisomics we have unequivocally placed the Ep(1) gene on chromosome 6, closely linked to the Y(1) locus. Additionally we describe new alleles at ...

journal_title：Genetics

authors： Nielsen G,Scandalios JG

更新日期：1974-08-01 00:00:00

abstract：:As hamster scrapie cannot infect mice, due to sequence differences in their PrP proteins, we find "species barriers" to transmission of the [URE3] prion in Saccharomyces cerevisiae among Ure2 proteins of S. cerevisiae, paradoxus, bayanus, cariocanus, and mikatae on the basis of differences among their Ure2p prion doma...

journal_title：Genetics

authors： Edskes HK,McCann LM,Hebert AM,Wickner RB

更新日期：2009-03-01 00:00:00

abstract：:Transposable element activity is repressed in the germline in animals by PIWI-interacting RNAs (piRNAs), a class of small RNAs produced by genomic loci mostly composed of TE sequences. The mechanism of induction of piRNA production by these loci is still enigmatic. We have shown that, in Drosophila melanogaster, a clu...

journal_title：Genetics

authors： Hermant C,Boivin A,Teysset L,Delmarre V,Asif-Laidin A,van den Beek M,Antoniewski C,Ronsseray S

更新日期：2015-12-01 00:00:00

abstract：:Regulation of development and entry into sporulation is critical for fungi to ensure survival of unfavorable environmental conditions. Here we present an analysis of gene sets regulating sporulation in the homothallic ascomycete Ashbya gossypii. Deletion of components of the conserved pheromone/starvation MAP kinase c...

journal_title：Genetics

authors： Wasserstrom L,Lengeler KB,Walther A,Wendland J

更新日期：2013-09-01 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：:Several quantitative trait loci (QTL) mapping strategies can successfully identify major-effect loci, but often have poor success detecting loci with minor effects, potentially due to the confounding effects of major loci, epistasis, and limited sample sizes. To overcome such difficulties, we used a targeted backcross...

journal_title：Genetics

authors： Sinha H,David L,Pascon RC,Clauder-Münster S,Krishnakumar S,Nguyen M,Shi G,Dean J,Davis RW,Oefner PJ,McCusker JH,Steinmetz LM

更新日期：2008-11-01 00:00:00

abstract：:In Xiphophorus, the causative genetic information for melanoma formation has been assigned by classical genetics to chromosomal loci, which are located on the sex chromosomes. In our attempts to molecularly clone these melanoma-determining loci, named Tu, we have looked for restriction-fragment-length markers (RFLMs) ...

journal_title：Genetics

authors： Schartl M

更新日期：1988-07-01 00:00:00

abstract：:Two sets of overlapping experiments were conducted to examine recombination and spontaneous mutation events within clusters of resistance genes in lettuce. Multiple generations were screened for recombinants using PCR-based markers flanking Dm3. The Dm3 region is not highly recombinagenic, exhibiting a recombination f...

journal_title：Genetics

authors： Chin DB,Arroyo-Garcia R,Ochoa OE,Kesseli RV,Lavelle DO,Michelmore RW

更新日期：2001-02-01 00:00:00

abstract：:In hybrids between Drosophila simulans and D. mauritiana, males are sterile and females are fertile, in compliance with HALDANE's rule. The genetic basis of this phenomenon was investigated by introgression of segments of the mauritiana genome into a simulans background. A total of 87 positions throughout the mauritia...

journal_title：Genetics

authors： True JR,Weir BS,Laurie CC

更新日期：1996-03-01 00:00:00