Inbreeding in populations with overlapping generations.

abstract：:This study examines the intrinsic fitness burden associated with RNA polymerase (rpoB) mutations conferring rifampin resistance in Escherichia coli K12 (MG1655) and explores the nature of adaptation to the costs of resistance. Among 28 independent Rif(r) mutants, the per-generation fitness burden (in the absence of ri...

journal_title：Genetics

authors： Reynolds MG

更新日期：2000-12-01 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：:The distribution of fitness effects (DFE) encompasses the fraction of deleterious, neutral, and beneficial mutations. It conditions the evolutionary trajectory of populations, as well as the rate of adaptive molecular evolution (α). Inferring DFE and α from patterns of polymorphism, as given through the site frequency...

journal_title：Genetics

authors： Tataru P,Mollion M,Glémin S,Bataillon T

更新日期：2017-11-01 00:00:00

abstract：:A canon of population genetics concerns the properties of FST, a descriptor of spatial genetic structure. Interest for FST arose from Wright's early insights linking FST to dispersal parameters as well as to his concept of effective population size (e.g., Wright 1938, 1951). Although there is continued interest in thi...

journal_title：Genetics

authors： Rousset F

更新日期：2013-07-01 00:00:00

abstract：:The white-apricot (wa) allele differs from the wild-type white gene by the presence of the retrovirus-like transposable element copia within the transcription unit. Most RNAs derived from wa have 3' termini within this insertion, and only small amounts of structurally normal RNA are produced. The activity of wa is red...

journal_title：Genetics

authors： Peng XB,Mount SM

更新日期：1990-12-01 00:00:00

abstract：:Cyclin E together with its kinase partner Cdk2 is a critical regulator of entry into S phase. To identify novel genes that regulate the G1- to S-phase transition within a whole animal we made use of a hypomorphic cyclin E mutation, DmcycEJP, which results in a rough eye phenotype. We screened the X and third chromosom...

journal_title：Genetics

authors： Brumby A,Secombe J,Horsfield J,Coombe M,Amin N,Coates D,Saint R,Richardson H

更新日期：2004-09-01 00:00:00

abstract：:We report the identification of bang senseless (bss), a Drosophila melanogaster mutant exhibiting seizure-like behaviors, as an allele of the paralytic (para) voltage-gated Na(+) (Na(V)) channel gene. Mutants are more prone to seizure episodes than normal flies because of a lowered seizure threshold. The bss phenotype...

journal_title：Genetics

authors： Parker L,Padilla M,Du Y,Dong K,Tanouye MA

更新日期：2011-02-01 00:00:00

abstract：:The gilthead sea bream (Sparus aurata L.) is a marine fish of great importance for fisheries and aquaculture. It has also a peculiar sex-determination system, being a protandrous hermaphrodite. Here we report the construction of a first-generation genetic linkage map for S. aurata, based on 204 microsatellite markers....

journal_title：Genetics

authors： Franch R,Louro B,Tsalavouta M,Chatziplis D,Tsigenopoulos CS,Sarropoulou E,Antonello J,Magoulas A,Mylonas CC,Babbucci M,Patarnello T,Power DM,Kotoulas G,Bargelloni L

更新日期：2006-10-01 00:00:00

abstract：:The spatial distributions of genetic variation under selection-mutation equilibrium within populations that have limited dispersal are investigated. The results show that directional selection with moderate strength rapidly reduces the amount of genetic structure and spatial autocorrelations far below that predicted f...

journal_title：Genetics

authors： Epperson BK

更新日期：1990-03-01 00:00:00

abstract：:Y chromosome function, structure and evolution is poorly understood in many species, including the Anopheles genus of mosquitoes-an emerging model system for studying speciation that also represents the major vectors of malaria. While the Anopheline Y had previously been implicated in male mating behavior, recent data...

journal_title：Genetics

authors： Bernardini F,Galizi R,Wunderlich M,Taxiarchi C,Kranjc N,Kyrou K,Hammond A,Nolan T,Lawniczak MNK,Papathanos PA,Crisanti A,Windbichler N

更新日期：2017-10-01 00:00:00

abstract：:The Caenorhabditis elegans pRb ortholog, LIN-35, functions in a wide range of cellular and developmental processes. This includes a role of LIN-35 in nutrient utilization by the intestine, which it carries out redundantly with SLR-2, a zinc-finger protein. This and other redundant functions of LIN-35 were identified i...

journal_title：Genetics

authors： Polley SR,Fay DS

更新日期：2012-08-01 00:00:00

abstract：:A sulfonamide-resistant mutant of pneumococcus, sulr-c, displays a genetic instability, regularly segregating to wild type. DNA extracts of derivatives of the strain possess transforming activities for both the mutant and wild-type alleles, establishing that the strain is a partial diploid. The linkage of sulr-c to st...

journal_title：Genetics

authors： Ledbetter ML,Hotchkiss RD

更新日期：1975-08-01 00:00:00

abstract：:The prune gene of Drosophila melanogaster is predicted to encode a phosphodiesterase. Null alleles of prune are viable but cause an eye-color phenotype. The abnormal wing discs gene encodes a nucleoside diphosphate kinase. Killer of prune is a missense mutation in the abnormal wing discs gene. Although it has no pheno...

journal_title：Genetics

authors： Provost E,Hersperger G,Timmons L,Ho WQ,Hersperger E,Alcazar R,Shearn A

更新日期：2006-01-01 00:00:00

abstract：:Isogenic lines, in which chromosomes sampled from natural populations of C. melanogaster are substituted into a common genetic background, were used to detect and partially characterize autosomal factors that affect the activities of the two pentose phosphate pathway enzymes, glucose 6-phosphate dehydrogenase (G6PD) a...

journal_title：Genetics

authors： Laurie-Ahlberg CC,Williamson JH,Cochrane BJ,Wilton AN,Chasalow FI

更新日期：1981-09-01 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：:Heterogeneous genetic divergence can accumulate across the genome when populations adapt to different habitats while still exchanging alleles. How long does diversification take and how much of the genome is affected? When divergence occurs in parallel from standing genetic variation, how often are the same haplotypes...

journal_title：Genetics

authors： Bassham S,Catchen J,Lescak E,von Hippel FA,Cresko WA

更新日期：2018-07-01 00:00:00

abstract：:The uaY gene encodes the transcriptional activator of purine catabolism genes in Aspergillus nidulans. uaY12 results in strongly defective growth on purines as nitrogen sources and in strongly diminished transcription of UaY-regulated genes. This mutation introduces an ATG codon 64 bp upstream of the uaY ATG, generati...

journal_title：Genetics

authors： Oestreicher N,Scazzocchio C

更新日期：2009-04-01 00:00:00

abstract：:Precocious entry into S phase due to overproduction of G1 regulators can cause genomic instability. The mechanisms of this phenomenon are largely unknown. We explored the consequences of precocious S phase in yeast by overproducing a deregulated form of Swi4 (Swi4-t). Swi4 is a late G1-specific transcriptional activat...

journal_title：Genetics

authors： Sidorova JM,Breeden LL

更新日期：2002-01-01 00:00:00

abstract：:According to theory, F(2) hybrid breakdown (lethality or sterility) is due to incompatibilities between interacting genes of the different species (i.e., the breaking up of coadapted gene complexes). Detection of such incompatibilities is particularly straightforward in haplodiploid species, because virgin F(1) hybrid...

journal_title：Genetics

authors： Gadau J,Page RE Jr,Werren JH

更新日期：1999-12-01 00:00:00

abstract：:The two cultivated rice species, Oryza sativa and Oryza glaberrima, are morphologically alike but are reproductively isolated from each other by hybrid sterility. The hybrid is male sterile but partially female fertile. Backcross experiments were conducted to introduce an alien factor controlling hybrid sterility from...

journal_title：Genetics

authors： Sano Y

更新日期：1990-05-01 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：:We show by molecular analysis of behavioral and physiological mutants that the Drosophila Dmca1A calcium-channel alpha1 subunit is encoded by the cacophony (cac) gene and that nightblind-A and lethal(1)L13 mutations are allelic to cac with respect to an expanded array of behavioral and physiological phenotypes associa...

journal_title：Genetics

authors： Smith LA,Peixoto AA,Kramer EM,Villella A,Hall JC

更新日期：1998-07-01 00:00:00

abstract：:Vegetative incompatibility in fungi has long been known to reduce the transmission of viruses between individuals, but the barrier to transmission is incomplete. In replicated laboratory assays, we showed conclusively that the transmission of viruses between individuals of the chestnut blight fungus Cryphonectria para...

journal_title：Genetics

authors： Cortesi P,McCulloch CE,Song H,Lin H,Milgroom MG

更新日期：2001-09-01 00:00:00

abstract：:Behavior is influenced by an organism's genes and environment, including its interactions with same or opposite sex individuals. Drosophila melanogaster perform innate, yet socially modifiable, courtship behaviors that are sex specific and require rapid integration and response to multiple sensory cues. Furthermore, m...

journal_title：Genetics

authors： Ellis LL,Carney GE

更新日期：2011-01-01 00:00:00

abstract：:Meiosis is a specialized cell division that generates gametes, such as eggs and sperm. Errors in meiosis result in miscarriages and are the leading cause of birth defects; however, the molecular origins of these defects remain unknown. Studies in model organisms are beginning to identify the genes and pathways importa...

journal_title：Genetics

authors： Blyth J,Makrantoni V,Barton RE,Spanos C,Rappsilber J,Marston AL

更新日期：2018-02-01 00:00:00

abstract：:In diploid eukaryotes, repair of double-stranded DNA breaks by homologous recombination often leads to loss of heterozygosity (LOH). Most previous studies of mitotic recombination in Saccharomyces cerevisiae have focused on a single chromosome or a single region of one chromosome at which LOH events can be selected. I...

journal_title：Genetics

authors： St Charles J,Hazkani-Covo E,Yin Y,Andersen SL,Dietrich FS,Greenwell PW,Malc E,Mieczkowski P,Petes TD

更新日期：2012-04-01 00:00:00

abstract：:Persistence time of a mutant allele, the expected number of generations before its elimination from the population, can be estimated as the ratio of the number of segregating mutations per individual over the mutation rate per generation. We screened two natural populations of Drosophila melanogaster for mutations cau...

journal_title：Genetics

authors： Yampolsky LY,Allen C,Shabalina SA,Kondrashov AS

更新日期：2005-12-01 00:00:00

abstract：:The ade6-M26 mutation of Schizosaccharomyces pombe has previously been reported to stimulate ade6 intragenic meiotic recombination. We report here that the ade6-M26 mutation is a single G----T nucleotide change, that M26 stimulated recombination within ade6 but not at other distinct loci, and that M26 stimulated meiot...

journal_title：Genetics

authors： Ponticelli AS,Sena EP,Smith GR

更新日期：1988-07-01 00:00:00

abstract：:Cells expend a large amount of energy to maintain their DNA sequence. DNA repair pathways, cell cycle checkpoint activation, proofreading polymerases, and chromatin structure are ways in which the cell minimizes changes to the genome. During replication, the DNA-damage tolerance pathway allows the replication forks to...

journal_title：Genetics

authors： Thurston AK,Radebaugh CA,Almeida AR,Argueso JL,Stargell LA

更新日期：2018-12-01 00:00:00

abstract：:The genetic and environmental components of variance for two quantitative characters were measured in the descendants of Drosophila melanogaster populations which had been grown for several generations at densities of 100, 200, 300, and 400 eggs per vial. Populations subject to intermediate densities had a greater pro...

journal_title：Genetics

authors： Long T,Long G

更新日期：1974-03-01 00:00:00