Complex epistasis for Dobzhansky-Muller hybrid incompatibility in solanum.

abstract：:The experimental population genetics of Y-chromosome drive in Drosophila melanogaster is approximated by studying the behavior of T(Y;2),SD lines. These exhibit "pseudo-Y" drive through the effective coupling of the Y chromosome to the second chromosome meiotic drive locus, Segregation distorter (SD). T(Y;2),SD males ...

journal_title：Genetics

authors： Lyttle TW

更新日期：1977-06-01 00:00:00

abstract：:Differential expression of mRNA among animal strains is one of the mechanisms for their diversity. cDNA microarray analysis of the prostates of BUF/Nac (BUF) and ACI/N (ACI) rats, which show different susceptibility to prostate cancers, found 195 differentially expressed genes. To identify loci that control differenti...

journal_title：Genetics

authors： Yamashita S,Wakazono K,Nomoto T,Tsujino Y,Kuramoto T,Ushijima T

更新日期：2005-11-01 00:00:00

abstract：:Notch signaling pathways can be regulated through a variety of cellular mechanisms, and genetically compromised systems provide useful platforms from which to search for the responsible modulators. The Caenorhabditis elegans gene aph-1 encodes a component of γ-secretase, which is essential for Notch signaling events t...

journal_title：Genetics

authors： Hale VA,Guiney EL,Goldberg LY,Haduong JH,Kwartler CS,Scangos KW,Goutte C

更新日期：2012-03-01 00:00:00

abstract：:Stem cells have a fascinating biology and offer great prospects for therapeutic applications, stimulating intense research on what controls their properties and behavior. Although there have been significant advances in our understanding of how local microenvironments, or niches, control the maintenance and activity o...

journal_title：Genetics

authors： Drummond-Barbosa D

更新日期：2008-12-01 00:00:00

abstract：:We have established the DNA sequence and analyzed the transcription and translation products of a series of putative nodulation (nod) genes in Rhizobium meliloti strain 1021. Four loci have been designated nodF, nodE, nodG and nodH. The correlation of transposon insertion positions with phenotypes and open reading fra...

journal_title：Genetics

authors： Fisher RF,Swanson JA,Mulligan JT,Long SR

更新日期：1987-10-01 00:00:00

abstract：:A series of clear mutants of the temperate phage 16-3 of Rhizobium meliloti were isolated that included various point and deletion mutants of the C cistron, coding for the phage repressor. It was observed that recombinant genotypes, such as c(+) and ti (temperature-sensitive allele), which form turbid plaques, can be ...

journal_title：Genetics

authors： Orosz L

更新日期：1980-02-01 00:00:00

abstract：:We analyzed linkage and chromosomal positions of genes in A. lyrata ssp. petraea that are located near the centromere (CEN) regions of A. thaliana, using at least two genes from the short and long arms of each chromosome. In our map, genes from all 10 A. thaliana chromosome arms are also tightly linked in A. lyrata. G...

journal_title：Genetics

authors： Kawabe A,Hansson B,Hagenblad J,Forrest A,Charlesworth D

更新日期：2006-07-01 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：:We examine the efficiency of different genotyping and phenotyping strategies in inbred line crosses from an information perspective. This provides a mathematical framework for the statistical aspects of QTL experimental design, while guiding our intuition. Our central result is a simple formula that quantifies the fra...

journal_title：Genetics

authors： Sen S,Satagopan JM,Churchill GA

更新日期：2005-05-01 00:00:00

abstract：:The alpha-Amylase locus in Drosophila pseudoobscura is a multigene family of one, two or three copies on the third chromosome. The nucleotide sequences of the three Amylase genes from a single chromosome of D. pseudoobscura are presented. The three Amylase genes differ at about 0.5% of their nucleotides. Each gene has...

journal_title：Genetics

authors： Brown CJ,Aquadro CF,Anderson WW

更新日期：1990-09-01 00:00:00

abstract：:The interval mapping method is widely used for the mapping of quantitative trait loci (QTLs) in segregating generations derived from crosses between inbred lines. The efficiency of detecting and the accuracy of mapping multiple QTLs by using genetic markers are much increased by employing multiple QTL models instead o...

journal_title：Genetics

authors： Jansen RC

更新日期：1993-09-01 00:00:00

abstract：:The heterochromatin of the third chromosome is the largest uncharacterized region of the Drosophila melanogaster genome, and the last major block of D. melanogaster heterochromatin to be thoroughly analyzed. In the present study, this region was genetically dissected by generating and analyzing a series of attached, d...

journal_title：Genetics

authors： Marchant GE,Holm DG

更新日期：1988-10-01 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：:Pseudo-homothallism is a reproductive strategy elected by some fungi producing heterokaryotic sexual spores containing genetically different but sexually compatible nuclei. This lifestyle appears as a compromise between true homothallism (self-fertility with predominant inbreeding) and complete heterothallism (with ex...

journal_title：Genetics

authors： Grognet P,Bidard F,Kuchly C,Tong LC,Coppin E,Benkhali JA,Couloux A,Wincker P,Debuchy R,Silar P

更新日期：2014-05-01 00:00:00

abstract：:A locus is described in Drosophila melanogaster that modifies the expression of the white eye color gene. This trans-acting modifier reduces the expression of the white gene in the eye, but elevates the expression in other adult tissues. Because of the eye phenotype in which the expression of white is lessened but not...

journal_title：Genetics

authors： Birchler JA,Bhadra U,Rabinow L,Linsk R,Nguyen-Huynh AT

更新日期：1994-08-01 00:00:00

abstract：:The extent of conservation of synteny and gene order in the Lepidoptera has been investigated previously only by comparing a small subset of linkage groups between the moth Bombyx mori and the butterfly Heliconius melpomene. Here we report the mapping of 64 additional conserved genes in H. melpomene, which contributed...

journal_title：Genetics

authors： Pringle EG,Baxter SW,Webster CL,Papanicolaou A,Lee SF,Jiggins CD

更新日期：2007-09-01 00:00:00

abstract：:An article by Singh and colleagues in this issue of GENETICS quantifies variation in recombination rate across a small region of the Drosophila melanogaster genome, providing an opportunity for instructors of genetics to introduce or reinforce important concepts such as recombination and recombination rate variation, ...

journal_title：Genetics

authors： Heil CS,Noor MA

更新日期：2013-06-01 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：: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：:The Saccharomyces cerevisiae mitochondrial endonuclease I-SceI creates a double-strand break as the initiating step in the gene conversional transfer of the omega+ intron to omega- DNA. We have expressed a galactose-inducible synthetic I-SceI gene in the nucleus of yeast that also carries the I-SceI recognition site o...

journal_title：Genetics

authors： Plessis A,Perrin A,Haber JE,Dujon B

更新日期：1992-03-01 00:00:00

abstract：:We have characterized a Saccharomyces cerevisiae mutant strain that is hypersensitive to cyclosporin A (CsA) and FK506, immunosuppressants that inhibit calcineurin, a serine-threonine-specific phosphatase (PP2B). A single nuclear mutation, designated cev1 for calcineurin essential for viability, is responsible for the...

journal_title：Genetics

authors： Hemenway CS,Dolinski K,Cardenas ME,Hiller MA,Jones EW,Heitman J

更新日期：1995-11-01 00:00:00

abstract：:A method for estimating the average level of gene flow among populations is introduced. The method provides an estimate of Nm, where N is the size of each local population in an island model and m is the migration rate. This method depends on knowing the phylogeny of the nonrecombining segments of DNA that are sampled...

journal_title：Genetics

authors： Slatkin M,Maddison WP

更新日期：1989-11-01 00:00:00

abstract：:We performed a comparative study of four subfamilies of olfactory receptor genes first identified in the dog to assess changes in the gene family during mammalian evolution, and to begin linking the dog genetic map to that of humans. The human subfamilies were localized to chromosomes 7, 11, and 19. The two subfamilie...

journal_title：Genetics

authors： Issel-Tarver L,Rine J

更新日期：1997-01-01 00:00:00

abstract：:The L-shaped distribution of estimated QTL effects (R(2)) has long been reported. We recently showed that a metabolic mechanism could account for this phenomenon. But other nonexclusive genetic or nongenetic causes may contribute to generate such a distribution. Using analysis and simulations of an additive genetic mo...

journal_title：Genetics

authors： Bost B,de Vienne D,Hospital F,Moreau L,Dillmann C

更新日期：2001-04-01 00:00:00

abstract：:Mutation of the two homothallic genes, HML alpha/HMLa and HMRa/HMR alpha, in homothallic strains of Saccharomyces cerevisiae was studied. Of 11 mutants of the HML alpha gene, eight were due to a phenotypic mutation from HML alpha to HMLa, i.e., a mutation causing a change in function of the original HML allele to that...

journal_title：Genetics

authors： Oshima T,Takano I

更新日期：1980-04-01 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：:Escherichia coli K12 does not metabolize beta-glucosides such as arbutin and salicin because of lack of expression of the bglBSRC operon, which contains structural genes for transport (bglC) and hydrolysis (bglB) of phospho-beta-glucosides. Mutants carrying lesions in the cis-acting regulatory site bglR metabolize bet...

journal_title：Genetics

authors： Defez R,De Felice M

更新日期：1981-01-01 00:00:00

abstract：:As a genetic mutation is passed down across generations, it distinguishes those genomes that have inherited it from those that have not, providing a glimpse of the genealogical tree relating the genomes to each other at that site. Statistical summaries of genetic variation therefore also describe the underlying geneal...

journal_title：Genetics

authors： Ralph P,Thornton K,Kelleher J

更新日期：2020-07-01 00:00:00

abstract：:If multiple linked polymorphisms are under natural selection, then conflicts arise and the efficiency of natural selection is hindered relative to the case of no linkage. This simple interaction between linkage and natural selection creates an opportunity for mutations that raise the level of recombination to increase...

journal_title：Genetics

authors： Hey J

更新日期：1998-08-01 00:00:00

abstract：:Reproductive isolation that initiates speciation is likely caused by incompatibility among multiple loci in organisms belonging to genetically diverging populations. Laboratory C57BL/6J mice, which predominantly originated from Mus musculus domesticus, and a MSM/Ms strain derived from Japanese wild mice (M. m. molossi...

journal_title：Genetics

authors： Oka A,Aoto T,Totsuka Y,Takahashi R,Ueda M,Mita A,Sakurai-Yamatani N,Yamamoto H,Kuriki S,Takagi N,Moriwaki K,Shiroishi T

更新日期：2007-01-01 00:00:00