Stochastic tunnels in evolutionary dynamics.

abstract：:Caenorhabditis elegans hermaphrodites make first sperm, then oocytes. By contrast, animals homozygous for any of six loss-of-function mutations in the gene mog-1 (for masculinization of the germ line) make sperm continuously and do not switch into oogenesis. Therefore, in mog-1 mutants, germ cells that normally would ...

journal_title：Genetics

authors： Graham PL,Kimble J

更新日期：1993-04-01 00:00:00

abstract：:The nuclear envelope in Saccharomyces cerevisiae harbors two essential macromolecular protein assemblies: the nuclear pore complexes (NPCs) that enable nucleocytoplasmic transport, and the spindle pole bodies (SPBs) that mediate chromosome segregation. Previously, based on metazoan and budding yeast studies, we report...

journal_title：Genetics

authors： Casey AK,Dawson TR,Chen J,Friederichs JM,Jaspersen SL,Wente SR

更新日期：2012-10-01 00:00:00

abstract：:The yeast pheromone/filamentous growth MAPK pathway mediates both mating and invasive-growth responses. The interface between this MAPK module and the transcriptional machinery consists of a network of two MAPKs, Fus3 and Kss1; two regulators, Rst1 and Rst2 (a.k.a. Dig1 and Dig2); and two transcription factors, Ste12 ...

journal_title：Genetics

authors： Breitkreutz A,Boucher L,Breitkreutz BJ,Sultan M,Jurisica I,Tyers M

更新日期：2003-11-01 00:00:00

abstract：:An extending axon growth cone is subjected to attractant and repellent cues. It is not clear how these growth cones discriminate the two opposing forces and select their projection paths. Here, we report that in the Drosophila nerve cord the growth cones of longitudinal tracts are subjected to attraction by the Netrin...

journal_title：Genetics

authors： Bhat KM

更新日期：2005-05-01 00:00:00

abstract：:Some mutant strains of the filamentous fungus Podospora anserina spontaneously present a growth impairment, which has been called Crippled Growth (CG). CG is caused by a cytoplasmic and infectious factor, C. C is efficiently transmitted during mitosis but is not transmitted to the progeny after sexual crosses. C is in...

journal_title：Genetics

authors： Silar P,Haedens V,Rossignol M,Lalucque H

更新日期：1999-01-01 00:00:00

abstract：:Samples of Rhynchosporium secalis were collected from two experimental barley populations known to carry a diverse array of alleles for resistance to this fungal pathogen. Classification of 163 isolates for four putative isozyme systems, a colony color dimorphism and 20 ribosomal DNA restriction fragment length varian...

journal_title：Genetics

authors： McDermott JM,McDonald BA,Allard RW,Webster RK

更新日期：1989-07-01 00:00:00

abstract：:We report a positive association between marital radius (distance between mates' birthplaces) and fertility detected in a large population. Spurious association due to socioeconomic factors is discarded by a conditional analysis involving income, education, and urbanicity. Strong evidence of consanguinity's deleteriou...

journal_title：Genetics

authors： Labouriau R,Amorim A

更新日期：2008-01-01 00:00:00

abstract：:We have precisely mapped and sequenced the three 5' exons of the Drosophila melanogaster Gld gene and have identified the start sites for transcription and translation. The first exon is composed of 335 nucleotides and does not contain any putative translation start codons. The second exon is separated from the first ...

journal_title：Genetics

authors： Whetten R,Organ E,Krasney P,Cox-Foster D,Cavener D

更新日期：1988-10-01 00:00:00

abstract：:In this article, we utilize stochastic search variable selection methodology to develop a Bayesian method for identifying multiple quantitative trait loci (QTL) for complex traits in experimental designs. The proposed procedure entails embedding multiple regression in a hierarchical normal mixture model, where latent ...

journal_title：Genetics

authors： Yi N,George V,Allison DB

更新日期：2003-07-01 00:00:00

abstract：:A study of spontaneous mutation in Arabidopsis thaliana was initiated from a single inbred Columbia founder; 120 lines were established and advanced 17 generations by single-seed descent. Here, we report an assay of reproductive traits in a random set of 40 lines from generations 8 and 17, grown together at the same t...

journal_title：Genetics

authors： Shaw RG,Byers DL,Darmo E

更新日期：2000-05-01 00:00:00

abstract：:Heteroduplexes with single base pair mismatches of known sequence were prepared by annealing separated strands of bacteriophage lambda DNA and used to transfect Escherichia coli. A series of transition (G:T and A:C) and transversion (G:A and C:T) mismatches located throughout most of the bacteriophage lambda cI gene h...

journal_title：Genetics

authors： Jones M,Wagner R,Radman M

更新日期：1987-04-01 00:00:00

abstract：:The contribution of epigenetic alterations to natural variation for gene transcription levels remains unclear. In this study, we investigated the functional targets of the maize chromomethylase ZMET2 in multiple inbred lines to determine whether epigenetic changes conditioned by this chromomethylase are conserved or v...

journal_title：Genetics

authors： Makarevitch I,Stupar RM,Iniguez AL,Haun WJ,Barbazuk WB,Kaeppler SM,Springer NM

更新日期：2007-10-01 00:00:00

abstract：:Transposons can impact the host genome by altering gene expression and participating in chromosome rearrangements. Therefore, organisms evolved different ways to minimize the level of transposition. In Saccharomyces cerevisiae and its close relative S. paradoxus, Ty1 copy number control (CNC) is mediated by the self-e...

journal_title：Genetics

authors： Ahn HW,Tucker JM,Arribere JA,Garfinkel DJ

更新日期：2017-12-01 00:00:00

abstract：:The L1 family of single-pass transmembrane cell adhesion molecules (L1CAMs) is conserved from Caenorhabditis elegans and Drosophila to vertebrates and is required for axon guidance, neurite outgrowth, and maintenance of neuronal positions. The extracellular region of L1CAMs mediates cell adhesion via interactions with...

journal_title：Genetics

authors： Zhou S,Opperman K,Wang X,Chen L

更新日期：2008-11-01 00:00:00

abstract：:The Drosophila melanogaster Gld gene has multiple and diverse developmental and physiological functions. We report herein that interactions among proximal promoter elements and a cluster of intronically located enhancers and silencers specify the complex regulation of Gld that underlies its diverse functions. Gld expr...

journal_title：Genetics

authors： Keplinger BL,Guo X,Quine J,Feng Y,Cavener DR

更新日期：2001-02-01 00:00:00

abstract：:An elevated mutation rate can provide cells with a source of mutations to adapt to changing environments. We identified a negative epistatic interaction involving naturally occurring variants in the MLH1 and PMS1 mismatch repair (MMR) genes of Saccharomyces cerevisiae We hypothesized that this MMR incompatibility, cre...

journal_title：Genetics

authors： Bui DT,Friedrich A,Al-Sweel N,Liti G,Schacherer J,Aquadro CF,Alani E

更新日期：2017-04-01 00:00:00

abstract：:Pairwise linkage disequilibrium values (D) were estimated for 14 allozyme loci in two natural populations of lodgepole pine (Pinus contorta ssp. latifolia). Maternal multilocus genotypes were inferred from samples of (haploid) megagametophytic seed-endosperms. Coupling/repulsion double heterozygotes were distinguished...

journal_title：Genetics

authors： Epperson BK,Allard RW

更新日期：1987-02-01 00:00:00

abstract：:Genomic resources for hundreds of species of evolutionary, agricultural, economic, and medical importance are unavailable due to the expense of well-assembled genome sequences and difficulties with multigenerational studies. Teleost fish provide many models for human disease but possess anciently duplicated genomes th...

journal_title：Genetics

authors： Amores A,Catchen J,Ferrara A,Fontenot Q,Postlethwait JH

更新日期：2011-08-01 00:00:00

abstract：:The net rate of mutation to deleterious but nonlethal alleles and the sizes of effects of these mutations are of great significance for many evolutionary questions. Here we describe three replicate experiments in which mutations have been accumulated on chromosome 3 of Drosophila melanogaster by means of single-male b...

journal_title：Genetics

authors： Charlesworth B,Borthwick H,Bartolomé C,Pignatelli P

更新日期：2004-06-01 00:00:00

abstract：:We describe here a family of P elements that we refer to as type I repressors. These elements are identified by their repressor functions and their lack of any deletion within the first two-thirds of the canonical P sequence. Elements belonging to this repressor class were isolated from P strains and were made in vitr...

journal_title：Genetics

authors： Gloor GB,Preston CR,Johnson-Schlitz DM,Nassif NA,Phillis RW,Benz WK,Robertson HM,Engels WR

更新日期：1993-09-01 00:00:00

abstract：:Mutations in the genealogy of the sequences in a random sample from a population can be classified as external and internal. External mutations are mutations that occurred in the external branches and internal mutations are mutations that occurred in the internal branches of the genealogy. Under the assumption of sele...

journal_title：Genetics

authors： Fu YX,Li WH

更新日期：1993-03-01 00:00:00

abstract：:Genetic material sequenced from ancient samples is revolutionizing our understanding of the recent evolutionary past. However, ancient DNA is often degraded, resulting in low coverage, error-prone sequencing. Several solutions exist to this problem, ranging from simple approach, such as selecting a read at random for ...

journal_title：Genetics

authors： Schraiber JG

更新日期：2018-01-01 00:00:00

abstract：:This study attempted to assay the zygotic contribution of X chromosome genes to the genetic control of embryonic morphogenesis in Drosophila melanogaster. A systematic screen for X-linked genes which affect the morphology of the embryo was undertaken, employing the phenotype of whole mount embryos as the major screeni...

journal_title：Genetics

authors： Eberl DF,Hilliker AJ

更新日期：1988-01-01 00:00:00

abstract：:Serrate (Ser) is an essential gene in Drosophila melanogaster best known for the Ser dominant (SerD) allele and its effects on wing development. Animals heterozygous or homozygous for SerD are viable and exhibit loss of wing margin tissue and associated bristles and hairs. The Beaded of Goldschmidt (BdG) allele of Ser...

journal_title：Genetics

authors： Hukriede NA,Fleming RJ

更新日期：1997-02-01 00:00:00

abstract：:In eukaryotic cells, the organization of genomic DNA into chromatin regulates many biological processes, from the control of gene expression to the regulation of chromosome segregation. The proper maintenance of this structure upon cell division is therefore of prime importance during development for the maintenance o...

journal_title：Genetics

authors： Roelens B,Clémot M,Leroux-Coyau M,Klapholz B,Dostatni N

更新日期：2017-01-01 00:00:00

abstract：:The consequences of a discontinuity in the migration rate and of a geographical barrier in the habitat are studied in a diffusion model of migration and selection. The treatment is restricted to a single diallelic locus in a monoecious population in the absence of mutation and random drift. It is supposed further that...

journal_title：Genetics

authors： Nagylaki T

更新日期：1976-08-01 00:00:00

abstract：:Mutations were induced in synchronous Chinese hamster cells by bromodeoxyuridine (BUdR) incorporated into cells for one-hour periods in the cell cycle. There was a very pronounced temporal dependence during the first half of the DNA synthesis period for the induction of damage leading to 6-thioguanine (6TG) and ouabai...

journal_title：Genetics

authors： Burki HJ,Aebersold PM

更新日期：1978-10-01 00:00:00

abstract：:Birds are characterized by female heterogamety; females carry the Z and W sex chromosomes, while males have two copies of the Z chromosome. We suggest here that full differentiation of the Z and W sex chromosomes of birds did not take place until after the split of major contemporary lineages, in the late Cretaceous. ...

journal_title：Genetics

authors： Ellegren H,Carmichael A

更新日期：2001-05-01 00:00:00

abstract：:Meiotically driven sex chromosomes can quickly spread to fixation and cause population extinction unless balanced by selection or suppressed by genetic modifiers. We report results of genetic analyses that demonstrate that extreme female-biased sex ratios in two sister species of stalk-eyed flies, Cyrtodiopsis dalmann...

journal_title：Genetics

authors： Presgraves DC,Severance E,Wilkinson GS

更新日期：1997-11-01 00:00:00

abstract：:The fixation probability is determined when population size and selection change over time and differs from Kimura's result, with long-term implications for a population. It is found that changes in population size are not equivalent to the corresponding changes in selection and can result in less drift than anticipat...

journal_title：Genetics

authors： Waxman D

更新日期：2011-08-01 00:00:00