The BAM H1 restriction site in the bacteriophage T4 chromosome is located in or near gene 8.

abstract：:In order to examine the mechanisms of mutagenesis by a bulky DNA lesion at the guanine N7 position, the replicative form DNA of phage M13AB28 (mp8 without the amber codons in phage genes) was modified in vitro with aflatoxin B1-2,3-dichloride and transfected into appropriate Escherichia coli cells. Forward mutations i...

journal_title：Genetics

authors： Sambamurti K,Callahan J,Luo X,Perkins CP,Jacobsen JS,Humayun MZ

更新日期：1988-12-01 00:00:00

abstract：:There are two common alleles at the Amylase-2 locus in populations of Gammarus palustris, the salt marsh amphipod. Intensive sampling of individuals from two localities at Jamaica Bay revealed a consistent pattern of heterozygote deficiency.-Five possible sources of heterozygote deficiency were examined in this study....

journal_title：Genetics

authors： Borowsky R,Borowsky B,Milani H,Greenberg P

更新日期：1985-10-01 00:00:00

abstract：:Previous mathematical analyses of mutation-selection balance for metric traits assume that selection acts on the relevant loci only through the character(s) under study. Thus, they implicitly assume that all of the relevant mutation and selection parameters are estimable. A more realistic analysis must recognize that ...

journal_title：Genetics

authors： Turelli M

更新日期：1985-09-01 00:00:00

abstract：:Many complex human traits exhibit differences between sexes. While numerous factors likely contribute to this phenomenon, growing evidence from genome-wide studies suggest a partial explanation: that males and females from the same population possess differing genetic architectures. Despite this, mapping gene-by-sex (...

journal_title：Genetics

authors： Funkhouser SA,Vazquez AI,Steibel JP,Ernst CW,Los Campos G

更新日期：2020-05-01 00:00:00

abstract：:Amoebae of the Colonia (CL) strain, which normally produce plasmodia in clones, are shown to cross with mt3 and mt4 amoebae under appropriate conditions. Strains carrying mt3 and mt4 in a CL genetic background were constructed and used in the genetic analysis of mutants isolated in CL. ...

journal_title：Genetics

authors： Adler PN,Holt CE

更新日期：1974-12-01 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：:Selection of suppressor mutations that correct growth defects caused by substitutions in an RNA or protein can reveal functionally important molecular structures and interactions in living cells. This approach is particularly useful for the study of complex biological pathways involving many macromolecules, such as pr...

journal_title：Genetics

authors： Brow DA

更新日期：2019-05-01 00:00:00

abstract：:An analysis of the effects of spontaneous mutations affecting age-specific mortality was conducted using 29 lines of Drosophila melanogaster that had accumulated spontaneous mutations for 19 generations. Divergence among the lines was used to estimate the mutational variance for weekly mortality rates and the covarian...

journal_title：Genetics

authors： Pletcher SD,Houle D,Curtsinger JW

更新日期：1998-01-01 00:00:00

abstract：:Biological evolution generates a surprising amount of site-specific variability in protein sequences. Yet, attempts at modeling this process have been only moderately successful, and current models based on protein structural metrics explain, at best, 60% of the observed variation. Surprisingly, simple measures of pro...

journal_title：Genetics

authors： Jiang Q,Teufel AI,Jackson EL,Wilke CO

更新日期：2018-04-01 00:00:00

abstract：:Previous studies on gene expression in aneuploids revealed numerous trans-acting dosage effects. Segmental aneuploidy of each varied chromosomal region exhibited predominantly inverse effects on several target genes. Here, dosage regulation was examined in a maize (Zea mays L.) ploidy series where the complete genomic...

journal_title：Genetics

authors： Guo M,Davis D,Birchler JA

更新日期：1996-04-01 00:00:00

abstract：:The phenomenon of heterosis describes the increased agronomic performance of heterozygous F(1) plants compared to their homozygous parental inbred plants. Heterosis is manifested during the early stages of root development in maize. The goal of this study was to identify nonadditive gene expression in primary roots of...

journal_title：Genetics

authors： Hoecker N,Keller B,Muthreich N,Chollet D,Descombes P,Piepho HP,Hochholdinger F

更新日期：2008-07-01 00:00:00

abstract：:Although maize is naturally an outcrossing organism, modern breeding utilizes highly inbred lines in controlled crosses to produce hybrids. The U.S. Department of Agriculture's reciprocal recurrent selection experiment between the Iowa Stiff Stalk Synthetic (BSSS) and the Iowa Corn Borer Synthetic No. 1 (BSCB1) popula...

journal_title：Genetics

authors： Gerke JP,Edwards JW,Guill KE,Ross-Ibarra J,McMullen MD

更新日期：2015-11-01 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：:During induction of the Caenorhabditis elegans hermaphrodite vulva by the anchor cell of the gonad, six multipotent vulval precursor cells (VPCs) have two distinct fates: three VPCs generate the vulva and the other three VPCs generate nonspecialized hypodermis. Genes that control the fates of the VPCs in response to t...

journal_title：Genetics

authors： Han M,Aroian RV,Sternberg PW

更新日期：1990-12-01 00:00:00

abstract：:Protein E, the lysis protein of bacteriophage phiX174, is a specific inhibitor of MraY, the phospho-MurNAc-pentapeptide translocase that catalyzes the synthesis of lipid I in the conserved pathway for peptidoglycan biosynthesis. The original evidence for this inhibition was the isolation of two spontaneous E-resistanc...

journal_title：Genetics

authors： Zheng Y,Struck DK,Bernhardt TG,Young R

更新日期：2008-11-01 00:00:00

abstract：:Reversion from the suppressed to nonsuppressed phenotype in strains of geno;type SUQ5 [psi+] ade2-1 his5-2 lys1-1 can1-100 ura3-1 has been induced by treatment with ethyl methanesulphonate, nitrosoguanidine or UV (254 nm) light. Spontaneously occurring revertants have also been selected by two different methods. Rever...

journal_title：Genetics

authors： Cox BS,Tuite MF,Mundy CJ

更新日期：1980-07-01 00:00:00

abstract：:The contributions of direct and inverted repeats to deletion formation were studied by characterizing Ampr revertants of plasmids with a series of insertion mutations at a specific site in the pBR322 ampicillin resistance (amp) gene. The inserts at this site are palindromic, variable in length, and bracketed by 9- or ...

journal_title：Genetics

authors： Weston-Hafer K,Berg DE

更新日期：1989-04-01 00:00:00

abstract：:Very few mutations derived from Mutator maize lines have been studied at the molecular level. The variety of Mu elements that can induce mutations, the relative frequency of mutant induction by insertion of a given class of Mu elements or by a Mu-induced genomic rearrangement, a possible intragenic insertion site spec...

journal_title：Genetics

authors： Brown WE,Robertson DS,Bennetzen JL

更新日期：1989-06-01 00:00:00

abstract：:The infinite-sites model with no recombination is extended to include mutations that affect electrophoretic mobility. The model allows the effect of a single-site mutation to have a continuous effect on mobility. Formulae are obtained for the variance of electrophoretic mobility of alleles after an arbitrary lenght of...

journal_title：Genetics

authors： Cobbs G

更新日期：1979-06-01 00:00:00

abstract：:Mating behavior in adult male nematodes can be assayed by mating efficiency, i.e., the number of cross progeny sired by males under standard conditions. Mutant males from 220 strains, representing most of the known complementation groups of C. elegans, have been examined for mating efficiency and for anatomical abnorm...

journal_title：Genetics

authors： Hodgkin J

更新日期：1983-01-01 00:00:00

abstract：:Genetic information can be altered by base substitutions, frameshift mutations, and addition or deletion of nucleotides. Deletions represent an important class of genetic aberration occurring at DNA sequences where it is often possible to predict the existence of intermediates of mutation. Instability within tracts of...

journal_title：Genetics

authors： Bichara M,Schumacher S,Fuchs RP

更新日期：1995-07-01 00:00:00

abstract：:Loss of heterozygosity (LOH) can be a driving force in the evolution of mitotic/somatic diploid cells, and cellular changes that increase the rate of LOH have been proposed to facilitate this process. In the yeast Saccharomyces cerevisiae, spontaneous LOH occurs by a number of mechanisms including chromosome loss and ...

journal_title：Genetics

authors： Andersen MP,Nelson ZW,Hetrick ED,Gottschling DE

更新日期：2008-07-01 00:00:00

abstract：:Abnormalities in chromosome number that occurred during meiosis were evaluated with a specially-constructed diploid strain of Saccharomyces cerevisiae. The strain is heterozygous for six markers of the right arm of chromosome V and heterozygous for cyh2 (resistance to cycloheximide) on chromosome VII.-Selection of mei...

journal_title：Genetics

authors： Sora S,Lucchini G,Magni GE

更新日期：1982-05-01 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：:Drosophila melanogaster males deficient for the crystal (cry) locus of the Y chromosome that carry between 15 and 60 copies of the X-linked Stellate (Ste) gene are semisterile, have elevated levels of nondisjunction, produce distorted sperm genotype ratios (meiotic drive), and evince hyperactive transcription of Ste i...

journal_title：Genetics

authors： Belloni M,Tritto P,Bozzetti MP,Palumbo G,Robbins LG

更新日期：2002-08-01 00:00:00

abstract：:Seed dormancy and germination in higher plants are partially controlled by the plant hormones abscisic acid (ABA) and gibberellic acid (GA). ABA establishes dormancy during embryo maturation, whereas GA breaks dormancy and induces germination. Previous attempts to identify GA response genes were confounded because GA ...

journal_title：Genetics

authors： Steber CM,Cooney SE,McCourt P

更新日期：1998-06-01 00:00:00

abstract：:Interactions with bacteria play a major role in immune responses, ecology, and evolution of all animals, but they have been neglected until recently in the case of C. elegans. We report a genetic investigation of the interaction of C. elegans with the nematode-specific pathogen Microbacterium nematophilum, which colon...

journal_title：Genetics

authors： Gravato-Nobre MJ,Nicholas HR,Nijland R,O'Rourke D,Whittington DE,Yook KJ,Hodgkin J

更新日期：2005-11-01 00:00:00

abstract：:Although neurons are highly polarized, how neuronal polarity is generated remains poorly understood. An evolutionarily conserved inositol-producing enzyme myo-inositol monophosphatase (IMPase) is essential for polarized localization of synaptic molecules in Caenorhabditis elegans and can be inhibited by lithium, a dru...

journal_title：Genetics

authors： Kimata T,Tanizawa Y,Can Y,Ikeda S,Kuhara A,Mori I

更新日期：2012-06-01 00:00:00

abstract：:Mapping quantitative trait loci in plants is usually conducted using a population derived from a cross between two inbred lines. The power of such QTL detection and the parameter estimates depend largely on the choice of the two parental lines. Thus, the QTL detected in such populations represent only a small part of ...

journal_title：Genetics

authors： Crepieux S,Lebreton C,Servin B,Charmet G

更新日期：2004-11-01 00:00:00

abstract：:The standard approaches to estimation of quantitative genetic parameters and prediction of response to selection on quantitative traits are based on theory derived for populations undergoing random mating. Many studies demonstrate, however, that mating systems in natural populations often involve inbreeding in various...

journal_title：Genetics

authors： Shaw RG,Byers DL,Shaw FH

更新日期：1998-12-01 00:00:00