abstract：:Protein aggregates are a common pathological feature of most neurodegenerative diseases (NDs). Understanding their formation and regulation will help clarify their controversial roles in disease pathogenesis. To date, there have been few systematic studies of aggregates formation in Drosophila, a model organism that h...

journal_title：Genetics

authors： Zhang S,Binari R,Zhou R,Perrimon N

更新日期：2010-04-01 00:00:00

abstract：:BTB-zinc finger transcription factors play many important roles in metazoan development. In these proteins, the BTB domain is critical for dimerization and for recruiting cofactors to target genes. Identification of these cofactors is important for understanding how BTB-zinc finger proteins influence transcription. He...

journal_title：Genetics

authors： Howell K,Arur S,Schedl T,Sundaram MV

更新日期：2010-04-01 00:00:00

abstract：:We describe a fast hierarchical Bayesian method for mapping quantitative trait loci by haplotype-based association, applicable when haplotypes are not observed directly but are inferred from multiple marker genotypes. The method avoids the use of a Monte Carlo Markov chain by employing priors for which the likelihood ...

journal_title：Genetics

authors： Durrant C,Mott R

更新日期：2010-03-01 00:00:00

abstract：:In many organisms, female and male meiosis display extensive sexual dimorphism in the temporal meiotic program, the number and location of recombination events, sex chromosome segregation, and checkpoint function. We show here that both meiotic prophase timing and germ-line apoptosis, one output of checkpoint signalin...

journal_title：Genetics

authors： Jaramillo-Lambert A,Engebrecht J

更新日期：2010-03-01 00:00:00

abstract：:TAHRE, the least abundant of the three retrotransposons forming telomeres in Drosophila melanogaster, has high sequence similarity to the gag gene and untranslated regions of HeT-A, the most abundant telomere-specific retrotransposon. Despite TAHRE's apparent evolutionary relationship to HeT-A, we find TAHRE Gag canno...

journal_title：Genetics

authors： Fuller AM,Cook EG,Kelley KJ,Pardue ML

更新日期：2010-03-01 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：:Active endogenous transposable elements, useful tools for gene isolation, have not been reported from any legume species. An active transposable element was suggested to reside in the W4 locus that governs flower color in soybean. Through biochemical and molecular analyses of several revertants of the w4-m allele, we ...

journal_title：Genetics

authors： Xu M,Brar HK,Grosic S,Palmer RG,Bhattacharyya MK

更新日期：2010-01-01 00:00:00

abstract：:An analysis of mortality is undertaken in two breeds of pigs: Danish Landrace and Yorkshire. Zero-inflated and standard versions of hierarchical Poisson, binomial, and negative binomial Bayesian models were fitted using Markov chain Monte Carlo (MCMC). The objectives of the study were to investigate whether there is s...

journal_title：Genetics

authors： Varona L,Sorensen D

更新日期：2010-01-01 00:00:00

abstract：:The Saccharomyces cerevisiae SEN1 gene codes for a nuclear-localized superfamily I helicase. SEN1 is an ortholog of human SETX (senataxin), which has been implicated in the neurological disorders ataxia-ocular apraxia type 2 and juvenile amyotrophic lateral sclerosis. Pleiotropic phenotypes conferred by sen1 mutations...

journal_title：Genetics

authors： Finkel JS,Chinchilla K,Ursic D,Culbertson MR

更新日期：2010-01-01 00:00:00

abstract：:The African fish Nothobranchius furzeri is the shortest-lived vertebrate species that can reproduce in captivity, with a median life span of 9-11 weeks for the shortest-lived strain. Natural populations of N. furzeri display differences in life span, aging biomarkers, behavior, and color, which make N. furzeri a uniqu...

journal_title：Genetics

authors： Valenzano DR,Kirschner J,Kamber RA,Zhang E,Weber D,Cellerino A,Englert C,Platzer M,Reichwald K,Brunet A

更新日期：2009-12-01 00:00:00

abstract：:We consider a population that adapts to a gradually changing environment. Our aim is to describe how ecological and genetic factors combine to determine the genetic basis of adaptation. Specifically, we consider the evolution of a polygenic trait that is under stabilizing selection with a moving optimum. The ecologica...

journal_title：Genetics

authors： Kopp M,Hermisson J

更新日期：2009-12-01 00:00:00

abstract：:The race-specific resistance gene Pi-ta has been effectively used to control blast disease, one of the most destructive plant diseases worldwide. A single amino acid change at the 918 position of the Pi-ta protein was known to determine resistance specificity. To understand the evolutionary dynamics present, we examin...

journal_title：Genetics

authors： Lee S,Costanzo S,Jia Y,Olsen KM,Caicedo AL

更新日期：2009-12-01 00:00:00

abstract：:Much recent work in the theoretical study of adaptation has focused on the so-called strong selection-weak mutation (SSWM) limit, wherein adaptation is due to new mutations of definite selective advantage. This work, in turn, has focused on the first step (substitution) during adaptive evolution. Here we extend this t...

journal_title：Genetics

authors： Unckless RL,Orr HA

更新日期：2009-11-01 00:00:00

abstract：:Magnesium (Mg) is an essential enzyme cofactor and a key structural component of biological molecules, but relatively little is known about the molecular components required for Mg homeostasis in eukaryotic cells. The yeast genome encodes four characterized members of the CorA Mg transporter superfamily located in the...

journal_title：Genetics

authors： Pisat NP,Pandey A,Macdiarmid CW

更新日期：2009-11-01 00:00:00

abstract：:In this work we study how mutations that change physical properties of cell proteins (stability) affect population survival and growth. We present a model in which the genotype is presented as a set folding free energies of cell proteins. Mutations occur upon replication, so stabilities of some proteins in daughter ce...

journal_title：Genetics

authors： Chen P,Shakhnovich EI

更新日期：2009-10-01 00:00:00

abstract：:The point mutation rate of phage PhiX174 was determined using the fluctuation test. After identifying the genetic changes associated with the selected phenotype, we obtained an estimate of 1.0x10(-6) substitutions per base per round of copying, which is consistent with Drake's rule (0.003 mutations per genome per roun...

journal_title：Genetics

authors： Cuevas JM,Duffy S,Sanjuán R

更新日期：2009-10-01 00:00:00

abstract：:We demonstrate that recent data from human males are consistent with constant interference levels among chromosomes under the two-pathway model, whereas inappropriately fitting shape parameters of Gamma distributions to immunofluorescent interfoci distances observed on finite chromosomes generates false interpretation...

journal_title：Genetics

authors： Housworth EA,Stahl FW

更新日期：2009-09-01 00:00:00

abstract：:Neutrality tests based on the frequency spectrum (e.g., Tajima's D or Fu and Li's F) are commonly used by population geneticists as routine tests to assess the goodness-of-fit of the standard neutral model on their data sets. Here, I show that these neutrality tests are specific instances of a general model that encom...

journal_title：Genetics

authors： Achaz G

更新日期：2009-09-01 00:00:00

abstract：:Chromatin insulators separate active from repressed chromatin domains. In yeast the RNA pol III transcription machinery bound to tRNA genes function with histone acetylases and chromatin remodelers to restrict the spread of heterochromatin. Our results collectively demonstrate that binding of TFIIIC is necessary for i...

journal_title：Genetics

authors： Valenzuela L,Dhillon N,Kamakaka RT

更新日期：2009-09-01 00:00:00

abstract：:Naturally transformable bacteria acquire chromosomal DNA from related species at lower frequencies than from cognate DNA sources. To determine how genome location affects heterogamic transformation in bacteria, we inserted an nptI marker into random chromosome locations in 19 different strains of the Acinetobacter gen...

journal_title：Genetics

authors： Ray JL,Harms K,Wikmark OG,Starikova I,Johnsen PJ,Nielsen KM

更新日期：2009-08-01 00:00:00

abstract：:DNA sequence analysis and genetic mapping of loci from mating-type-specific chromosomes of the smut fungus Microbotryum violaceum demonstrated that the nonrecombining mating-type-specific region in this species comprises approximately 25% ( approximately 1 Mb) of the chromosome length. Divergence between homologous ma...

journal_title：Genetics

authors： Votintseva AA,Filatov DA

更新日期：2009-08-01 00:00:00

abstract：:Centric regions of eukaryotic genomes are packaged into heterochromatin, which possesses the ability to spread along the chromosome and silence gene expression. The process of spreading has been challenging to study at the molecular level due to repetitious sequences within centric regions. A heterochromatin protein 1...

journal_title：Genetics

authors： Hines KA,Cryderman DE,Flannery KM,Yang H,Vitalini MW,Hazelrigg T,Mizzen CA,Wallrath LL

更新日期：2009-08-01 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：:The transcription factors Adr1 and Cat8 act in concert to regulate the expression of numerous yeast genes after the diauxic shift. Their activities are regulated by Snf1, the yeast homolog of the AMP-activated protein kinase of higher eukaryotes. Cat8 is regulated directly by Snf1, but how Snf1 regulates Adr1 is unkno...

journal_title：Genetics

authors： Ratnakumar S,Kacherovsky N,Arms E,Young ET

更新日期：2009-07-01 00:00:00

abstract：:The formation of the Aspergillus nidulans fruiting body is affected by a number of genetic and environmental factors. Here, the nsdC (never in sexual development) gene-encoding a putative transcription factor carrying a novel type of zinc-finger DNA-binding domain consisting of two C(2)H(2)'s and a C(2)HC motif that a...

journal_title：Genetics

authors： Kim HR,Chae KS,Han KH,Han DM

更新日期：2009-07-01 00:00:00

abstract：:To gain new mechanistic insight into ER homeostasis and the biogenesis of secretory proteins, we screened a genomewide collection of yeast mutants for defective intracellular retention of the ER chaperone, Kar2p. We identified 87 Kar2p-secreting strains, including a number of known components in secretory protein modi...

journal_title：Genetics

authors： Copic A,Dorrington M,Pagant S,Barry J,Lee MC,Singh I,Hartman JL 4th,Miller EA

更新日期：2009-07-01 00:00:00

abstract：:Genomic integrity is threatened by multiple sources of DNA damage. DNA double-strand breaks (DSBs) are among the most dangerous types of DNA lesions and can be generated by endogenous or exogenous agents, but they can arise also during DNA replication. Sister chromatid recombination (SCR) is a key mechanism for the re...

journal_title：Genetics

authors： Conde F,Refolio E,Cordón-Preciado V,Cortés-Ledesma F,Aragón L,Aguilera A,San-Segundo PA

更新日期：2009-06-01 00:00:00

abstract：:Stress-induced mutagenesis is a collection of mechanisms observed in bacterial, yeast, and human cells in which adverse conditions provoke mutagenesis, often under the control of stress responses. Control of mutagenesis by stress responses may accelerate evolution specifically when cells are maladapted to their enviro...

journal_title：Genetics

authors： Galhardo RS,Do R,Yamada M,Friedberg EC,Hastings PJ,Nohmi T,Rosenberg SM

更新日期：2009-05-01 00:00:00

abstract：:The availability of genomewide dense markers brings opportunities and challenges to breeding programs. An important question concerns the ways in which dense markers and pedigrees, together with phenotypic records, should be used to arrive at predictions of genetic values for complex traits. If a large number of marke...

journal_title：Genetics

authors： de los Campos G,Naya H,Gianola D,Crossa J,Legarra A,Manfredi E,Weigel K,Cotes JM

更新日期：2009-05-01 00:00:00

abstract：:We propose a novel approximate-likelihood method to fit demographic models to human genomewide single-nucleotide polymorphism (SNP) data. We divide the genome into windows of constant genetic map width and then tabulate the number of distinct haplotypes and the frequency of the most common haplotype for each window. W...

journal_title：Genetics

authors： Lohmueller KE,Bustamante CD,Clark AG

更新日期：2009-05-01 00:00:00

abstract：:Several adhesins are induced by pheromones during mating in Saccharomyces cerevisiae, including Aga1p, Aga2p, Sag1p (Agalpha1p), and Fig2p. These four proteins all participate in or influence a well-studied agglutinin interaction mediated by Aga1p-Aga2p complexes and Sag1p; however, they also play redundant and essent...

journal_title：Genetics

authors： Huang G,Dougherty SD,Erdman SE

更新日期：2009-05-01 00:00:00

abstract：:Selective genotyping and phenotyping strategies are used to lower the cost of quantitative trait locus studies. Their efficiency has been studied primarily in simplified contexts--when a single locus contributes to the phenotype, and when the residual error (phenotype conditional on the genotype) is normally distribut...

journal_title：Genetics

authors： Sen S,Johannes F,Broman KW

更新日期：2009-04-01 00:00:00

abstract：:This work demonstrates that environmental conditions experienced by individuals can shape their development and affect the stability of genetic associations. The implication of this observation is that the environmental response may influence the evolution of traits in the wild. Here, we examined how the genetic archi...

journal_title：Genetics

authors： Robinson MR,Wilson AJ,Pilkington JG,Clutton-Brock TH,Pemberton JM,Kruuk LE

更新日期：2009-04-01 00:00:00

abstract：:Functional analyses of the Arabidopsis genome require analysis of the gametophytic generation, since approximately 10% of the genes are expressed in the male gametophyte and approximately 9% in the female gametophyte. Here we describe the genetic and molecular characterization of 67 Ds insertion lines that show reduce...

journal_title：Genetics

authors： Boavida LC,Shuai B,Yu HJ,Pagnussat GC,Sundaresan V,McCormick S

更新日期：2009-04-01 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：:Insulin-like growth factors (IGFs) control cell and organism growth through evolutionarily conserved signaling pathways. The mammalian acid-labile subunit (ALS) is a secreted protein that complexes with IGFs to modulate their activity. Recent work has shown that a Drosophila homolog of ALS, dALS, can also complex with...

journal_title：Genetics

authors： Swanson LE,Yu M,Nelson KS,Laprise P,Tepass U,Beitel GJ

更新日期：2009-04-01 00:00:00

abstract：:Receptor tyrosine kinases (RTKs) are an important family of signaling molecules with the unusual property that they are able to transduce their signals using the same downstream pathways. This has led to an unresolved debate as to whether individual receptors are interchangeable, or if each receptor can mediate specif...

journal_title：Genetics

authors： Leatherbarrow JR,Halfon MS

更新日期：2009-04-01 00:00:00

abstract：:Many aspects of plant biology depend on the ubiquitin proteasome system for degradation of regulatory proteins. Ubiquitin E3 ligases confer substrate specificity in this pathway, and SCF-type ligases comprise a major class of E3s. SCF ligases have four subunits: SKP1, CUL1, RBX1, and an F-box protein for substrate rec...

journal_title：Genetics

authors： Gilkerson J,Hu J,Brown J,Jones A,Sun TP,Callis J

更新日期：2009-03-01 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：:Cell-cell fusion is essential for a variety of developmental steps in many eukaryotic organisms, during both fertilization and vegetative cell growth. Although the molecular mechanisms associated with intracellular membrane fusion are well characterized, the molecular mechanisms of plasma membrane merger between cells...

journal_title：Genetics

authors： Fleissner A,Diamond S,Glass NL

更新日期：2009-02-01 00:00:00