Change in chromosome number associated with a double deletion in the Neurospora crassa mitochondrial chromosome.

abstract：:The three-dimensional organization of polytene chromosomes within nuclei containing rearranged X chromosomes was examined in male Drosophila melanogaster. Salivary glands of third instar larvae containing either an inverted X chromosome (YSX.YL, In(1)EN/O) or a ring X chromosome (R(1) 2/BSYy+) were fixed, embedded, an...

journal_title：Genetics

authors： Mathog D,Sedat JW

更新日期：1989-02-01 00:00:00

abstract：:A family of protein kinases regulates translation in response to different cellular stresses by phosphorylation of the alpha subunit of eukaryotic initiation factor-2 (eIF-2alpha). In yeast, an eIF-2alpha kinase, GCN2, functions in translational control in response to amino acid starvation. It is thought that uncharge...

journal_title：Genetics

authors： Sood R,Porter AC,Olsen DA,Cavener DR,Wek RC

更新日期：2000-02-01 00:00:00

abstract：:How many genes contribute to reproductive isolation between closely related species? We determined the number of genes located in the 9D-12B region of the Drosophila mauritiana X chromosome that cause hybrid male sterility in a D. simulans background. Previous low resolution studies suggested that a single hybrid ster...

journal_title：Genetics

authors： Davis AW,Wu CI

更新日期：1996-07-01 00:00:00

abstract：:Studies of genetic variation at allozyme loci, assumed to be selectively neutral, have provided valuable insights into the genetic structure of numerous populations. The degree to which population structure of allozyme variation reflects that of quantitative traits, however, is not well resolved. Here, we compare esti...

journal_title：Genetics

authors： Podolsky RH,Holtsford TP

更新日期：1995-06-01 00:00:00

abstract：:We investigated genetic polymorphism in the Caenorhabditis elegans srh and str chemoreceptor gene families, each of which consists of approximately 300 genes encoding seven-pass G-protein-coupled receptors. Almost one-third of the genes in each family are annotated as pseudogenes because of apparent functional defects...

journal_title：Genetics

authors： Stewart MK,Clark NL,Merrihew G,Galloway EM,Thomas JH

更新日期：2005-04-01 00:00:00

abstract：:Type III galactosemia is a metabolic disorder caused by reduced activity of UDP-galactose-4-epimerase, which participates in galactose metabolism and the generation of various UDP-sugar species. We characterized gale-1 in Caenorhabditis elegans and found that a complete loss-of-function mutation is lethal, as has been...

journal_title：Genetics

authors： Brokate-Llanos AM,Monje JM,Murdoch Pdel S,Muñoz MJ

更新日期：2014-12-01 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：:We used ends-in gene targeting to generate knockout mutations of the nucleosome assembly protein 1 (Nap1) gene in Drosophila melanogaster. Three independent targeted null-knockout mutations were produced. No wild-type NAP1 protein could be detected in protein extracts. Homozygous Nap1(KO) knockout flies were either em...

journal_title：Genetics

authors： Lankenau S,Barnickel T,Marhold J,Lyko F,Mechler BM,Lankenau DH

更新日期：2003-02-01 00:00:00

abstract：:An algorithm for detecting local clusters of homologous genes was applied to the genome of Caenorhabditis elegans. Clusters of two or more homologous genes are abundant, totaling 1391 clusters containing 4607 genes, over one-fifth of all genes in C. elegans. Cluster genes are distributed unevenly in the genome, with t...

journal_title：Genetics

authors： Thomas JH

更新日期：2006-01-01 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：:Nucleosome-depleted regions (NDRs) are present immediately adjacent to the transcription start site in most eukaryotic promoters. Here we show that NDRs in the upstream promoter region can profoundly affect gene regulation. Chromatin at the yeast HO promoter is highly repressive and numerous coactivators are required ...

journal_title：Genetics

authors： Yarrington RM,Goodrum JM,Stillman DJ

更新日期：2016-02-01 00:00:00

abstract：:Motile and immotile (or primary) cilia are microtubule-based structures that mediate multiple cellular functions, including the transduction of environmental cues, developmental signaling, cellular motility, and modulation of fluid flow. Although their core architectures are similar, motile and primary cilia exhibit m...

journal_title：Genetics

authors： Kazatskaya A,Kuhns S,Lambacher NJ,Kennedy JE,Brear AG,McManus GJ,Sengupta P,Blacque OE

更新日期：2017-12-01 00:00:00

abstract：:The rate of decline in reproductive fitness in populations of Drosophila melanogaster inbred at an initial rate of approximately 1% per generation has been investigated under both competitive and noncompetitive conditions. Breeding population size was variable in the inbred lines with an estimated harmonic mean of 66....

journal_title：Genetics

authors： Latter BD,Mulley JC,Reid D,Pascoe L

更新日期：1995-01-01 00:00:00

abstract：:During animal development, transcription factor activities are modulated by several means, including subcellular localization. The Hox cofactor Extradenticle (Exd) has a dynamic subcellular localization, such that Exd is cytoplasmic by default, but is nuclear when complexed with another homeodomain protein, Homothorax...

journal_title：Genetics

authors： Stevens KE,Mann RS

更新日期：2007-04-01 00:00:00

abstract：:The T-box genes comprise an ancient family of putative transcription factors conserved across species as divergent as Mus musculus and Caenorhabditis elegans. All T-box gene products are characterized by a novel 174-186-amino acid DNA binding domain called the T-box that was first discovered in the polypeptide product...

journal_title：Genetics

authors： Agulnik SI,Garvey N,Hancock S,Ruvinsky I,Chapman DL,Agulnik I,Bollag R,Papaioannou V,Silver LM

更新日期：1996-09-01 00:00:00

abstract：:In Caenorhabditis elegans embryos, specification of the germ lineage depends on PIE-1, a maternal protein that blocks mRNA transcription in germline blastomeres. Studies in mammalian cell culture have suggested that PIE-1 inhibits P-TEFb, a kinase that phosphorylates serine 2 in the carboxyl-terminal domain (CTD) repe...

journal_title：Genetics

authors： Ghosh D,Seydoux G

更新日期：2008-01-01 00:00:00

abstract：:We use three allopatric populations of the stalk-eyed fly Teleopsis dalmanni from Southeast Asia to test two predictions made by the sex chromosome drive hypothesis for Haldane's rule. The first is that modifiers that suppress or enhance drive should evolve rapidly and independently in isolated populations. The second...

journal_title：Genetics

authors： Wilkinson GS,Christianson SJ,Brand CL,Ru G,Shell W

更新日期：2014-11-01 00:00:00

abstract：:In most species, size homeostasis appears to be exerted in late G1 phase as cells commit to division, called Start in yeast and the Restriction Point in metazoans. This size threshold couples cell growth to division, and, thereby, establishes long-term size homeostasis. Our former investigations have shown that hundre...

journal_title：Genetics

authors： Chaillot J,Tebbji F,Mallick J,Sellam A

更新日期：2019-02-01 00:00:00

abstract：:We have investigated meiotic changes in CAG repeat tracts embedded in a yeast chromosome. Repeat tracts undergo either conversion events between homologs or expansion and contraction events that appear to be confined to a single chromatid. We did not find evidence for conversion of tract interruptions or excess exchan...

journal_title：Genetics

authors： Schweitzer JK,Reinke SS,Livingston DM

更新日期：2001-12-01 00:00:00

abstract：:Yip1p is the first identified Rab-interacting membrane protein and the founder member of the YIP1 family, with both orthologs and paralogs found in all eukaryotic genomes. The exact role of Yip1p is unclear; YIP1 is an essential gene and defective alleles severely disrupt membrane transport and inhibit ER vesicle budd...

journal_title：Genetics

authors： Chen CZ,Calero M,DeRegis CJ,Heidtman M,Barlowe C,Collins RN

更新日期：2004-12-01 00:00:00

abstract：:Sphingolipid signaling plays an important role in the regulation of central cellular processes, including cell growth, survival, and differentiation. Many of the essential pathways responsible for sphingolipid biogenesis, and key cellular responses to changes in sphingolipid balance, are conserved between mammalian an...

journal_title：Genetics

authors： Brace JL,Lester RL,Dickson RC,Rudin CM

更新日期：2007-01-01 00:00:00

abstract：:I factors in Drosophila melanogaster are non-LTR retrotransposons that transpose at very high frequencies in the germ line of females resulting from crosses between reactive females (devoid of active I factors) and inducer males (containing active I factors). Constructs containing I factor ORF1 under the control of th...

journal_title：Genetics

authors： Malinsky S,Bucheton A,Busseau I

更新日期：2000-11-01 00:00:00

abstract：:Parentage analysis is an important method that is used widely in zoological and ecological studies. Current mathematical models of parentage analyses usually assume that a population has a uniform genetic structure and that mating is panmictic. In a natural population, the geographic or social structure of a populatio...

journal_title：Genetics

authors： Huang K,Mi R,Dunn DW,Wang T,Li B

更新日期：2018-12-01 00:00:00

abstract：:HO endonuclease-induced double-strand breaks (DSBs) within a direct duplication of Escherichia coli lacZ genes are repaired either by gene conversion or by single-strand annealing (SSA), with > 80% being SSA. Previously it was demonstrated that the RAD52 gene is required for DSB-induced SSA. In the present study, the ...

journal_title：Genetics

authors： Ivanov EL,Sugawara N,Fishman-Lobell J,Haber JE

更新日期：1996-03-01 00:00:00

abstract：:Explanations of the evolution of diploidy have focused on the advantages gained from masking deleterious alleles. Recent theory has shown, however, that masking does not always provide an advantage to diploidy and would never favor diploidy in predominantly asexual organisms. We explore a neglected alternative theory ...

journal_title：Genetics

authors： Orr HA,Otto SP

更新日期：1994-04-01 00:00:00

abstract：:Sxl appears to head a regulatory gene hierarchy that controls Drosophila sexual dimorphism in response to the X chromosome/autosome balance. Only XXAA cells normally have Sxl(+) activity. It maintains both the female morphogenetic sequence and a level of X-linked dosage-compensated gene expression compatible with dipl...

journal_title：Genetics

authors： Cline TW

更新日期：1984-06-01 00:00:00

abstract：:We present methods for estimating the parameters of inheritance and selection that appear in a quantitative genetic model for the evolution growth trajectories and other "infinite-dimensional" traits that we recently introduced. Two methods for estimating the additive genetic covariance function are developed, a "full...

journal_title：Genetics

authors： Kirkpatrick M,Lofsvold D,Bulmer M

更新日期：1990-04-01 00:00:00

abstract：:In experiments with directional selection on a quantitative character a "reversed response" to selection is occasionally observed, when selection of individuals for a higher (lower) value of the character results in a lower (higher) value of the character among their offspring. A sudden change in environments or rando...

journal_title：Genetics

authors： Gimelfarb A

更新日期：1986-09-01 00:00:00

abstract：:Adaptation in diploids is predicted to proceed via mutations that are at least partially dominant in fitness. Recently, we argued that many adaptive mutations might also be commonly overdominant in fitness. Natural (directional) selection acting on overdominant mutations should drive them into the population but then,...

journal_title：Genetics

authors： Sellis D,Kvitek DJ,Dunn B,Sherlock G,Petrov DA

更新日期：2016-07-01 00:00:00

abstract：:We develop a maximum penalized-likelihood (MPL) method to estimate the fitnesses of amino acids and the distribution of selection coefficients (S = 2Ns) in protein-coding genes from phylogenetic data. This improves on a previous maximum-likelihood method. Various penalty functions are used to penalize extreme estimate...

journal_title：Genetics

authors： Tamuri AU,Goldman N,dos Reis M

更新日期：2014-05-01 00:00:00