Partial selfing and linkage: the effect of a heterotic locus on a neutral locus.

abstract：:Meiotically driven sex chromosomes can quickly spread to fixation and cause population extinction unless balanced by selection or suppressed by genetic modifiers. We report results of genetic analyses that demonstrate that extreme female-biased sex ratios in two sister species of stalk-eyed flies, Cyrtodiopsis dalmann...

journal_title：Genetics

authors： Presgraves DC,Severance E,Wilkinson GS

更新日期：1997-11-01 00:00:00

abstract：:We constructed a genetic linkage map of Gibberella zeae (Fusarium graminearum) by crossing complementary nitrate-nonutilizing (nit) mutants of G. zeae strains R-5470 (from Japan) and Z-3639 (from Kansas). We selected 99 nitrate-utilizing (recombinant) progeny and analyzed them for amplified fragment length polymorphis...

journal_title：Genetics

authors： Jurgenson JE,Bowden RL,Zeller KA,Leslie JF,Alexander NJ,Plattner RD

更新日期：2002-04-01 00:00:00

abstract：:Despite its importance to agriculture, the genetic basis of heterosis is still not well understood. The main competing hypotheses include dominance, overdominance, and epistasis. NC design III is an experimental design that has been used for estimating the average degree of dominance of quantitative trait loci (QTL) a...

journal_title：Genetics

authors： Garcia AA,Wang S,Melchinger AE,Zeng ZB

更新日期：2008-11-01 00:00:00

abstract：:The heat-shock response is a programmed change in gene expression carried out by cells in response to environmental stress, such as heat. This response is universal and is characterized by the synthesis of a small group of conserved protein chaperones. In Drosophila melanogaster the Hsp70 chaperone dominates the profi...

journal_title：Genetics

authors： Gong WJ,Golic KG

更新日期：2006-01-01 00:00:00

abstract：:Rodent inbred line crosses are widely used to map genetic loci associated with complex traits. This approach has proven to be powerful for detecting quantitative trait loci (QTL); however, the resolution of QTL locations, typically approximately 20 cM, means that hundreds of genes are implicated as potential candidate...

journal_title：Genetics

authors： Li R,Lyons MA,Wittenburg H,Paigen B,Churchill GA

更新日期：2005-03-01 00:00:00

abstract：:The neutral rate of allelic substitution is analyzed for a class-structured population subject to a stationary stochastic demographic process. The substitution rate is shown to be generally equal to the effective mutation rate, and under overlapping generations it can be expressed as the effective mutation rate in new...

journal_title：Genetics

authors： Lehmann L

更新日期：2014-05-01 00:00:00

abstract：:A study of spontaneous mutation in Arabidopsis thaliana was initiated from a single inbred Columbia founder; 120 lines were established and advanced 17 generations by single-seed descent. Here, we report an assay of reproductive traits in a random set of 40 lines from generations 8 and 17, grown together at the same t...

journal_title：Genetics

authors： Shaw RG,Byers DL,Darmo E

更新日期：2000-05-01 00:00:00

abstract：:The third hypervariable (V3) region of the HIV-1 gp120 protein is responsible for many aspects of viral infectivity. The tertiary structure of the V3 loop seems to influence the coreceptor usage of the virus, which is an important determinant of HIV pathogenesis. Hence, the information about preferred conformations of...

journal_title：Genetics

authors： Watabe T,Kishino H,Okuhara Y,Kitazoe Y

更新日期：2006-03-01 00:00:00

abstract：:The unicellular green alga Chlamydomonas reinhardtii is used extensively as a model to study eukaryotic photosynthesis, flagellar functions, and more recently the production of hydrogen as biofuel. Two of these processes, photosynthesis and hydrogen production, are highly dependent on iron-sulfur (Fe-S) enzymes. To un...

journal_title：Genetics

authors： Godman J,Balk J

更新日期：2008-05-01 00:00:00

abstract：:A procedure permitting deletion scanning of potential cis-regulatory sequences within a transgene whose genomic position remains fixed was applied to the study of the upstream sequences of the ecdysteroid-inducible Fat-body-protein-1 (Fbp1) gene. Deficiencies were induced in a Fbp1:Adh fusion transgene by means of a s...

journal_title：Genetics

authors： Lapie P,Nasr F,Lepesant JA,Deutsch J

更新日期：1993-11-01 00:00:00

abstract：:The knotted1 gene was first defined by dominant mutations that affect leaf morphology. The original allele, Kn1-O, results from a 17-kb tandem duplication. Mutator (Mu) insertions near the junction of the two repeats suppress the leaf phenotype to different degrees depending on the position of the insertion. The Mu in...

journal_title：Genetics

authors： Mathern J,Hake S

更新日期：1997-09-01 00:00:00

abstract：:DNA topoisomerases, enzymes that alter the superhelicity of DNA, have been implicated in such critical cellular functions as transcription, DNA replication, and recombination. In the yeast Saccharomyces cerevisiae, a null mutation in the gene encoding topoisomerase I (TOP1) causes elevated levels of mitotic recombinat...

journal_title：Genetics

authors： Levin NA,Bjornsti MA,Fink GR

更新日期：1993-04-01 00:00:00

abstract：:We have employed a system that utilizes homologous pairs of human DNA-derived yeast artificial chromosomes (YACs) as marker chromosomes to assess the specific role(s) of conserved centromere DNA elements (CDEI, CDEII and CDEIII) in meiotic chromosome disjunction fidelity. Thirteen different centromere (CEN) mutations ...

journal_title：Genetics

authors： Sears DD,Hegemann JH,Shero JH,Hieter P

更新日期：1995-03-01 00:00:00

abstract：:Within the context of a conservation program the management of subdivided populations implies a compromise between the control of the global genetic diversity, the avoidance of high inbreeding levels, and, sometimes, the maintenance of a certain degree of differentiation between subpopulations. We present a dynamic an...

journal_title：Genetics

authors： Fernández J,Toro MA,Caballero A

更新日期：2008-05-01 00:00:00

abstract：:MCM (minichromosome maintenance) proteins function as a replication licensing factor (RLF-M), which contributes to limiting initiation of DNA replication to once per cell cycle. In the present study we show that a truncation of the pol II CTD in a S. cerevisiae strain harboring a mutation in mcm5 partially reverses it...

journal_title：Genetics

authors： Gauthier L,Dziak R,Kramer DJ,Leishman D,Song X,Ho J,Radovic M,Bentley D,Yankulov K

更新日期：2002-11-01 00:00:00

abstract：:Hybrid incompatibility can result from gene misregulation produced by divergence in trans-acting regulatory factors and their cis-regulatory targets. However, change in trans-acting factors may be constrained by pleiotropy, which would in turn limit the evolution of incompatibility. We employed a mechanistically expli...

journal_title：Genetics

authors： Tulchinsky AY,Johnson NA,Porter AH

更新日期：2014-12-01 00:00:00

abstract：:The pathogenic life cycle of the rice blast fungus Magnaporthe oryzae involves a series of morphogenetic changes, essential for its ability to cause disease. The smo mutation was identified > 25 years ago, and affects the shape and development of diverse cell types in M. oryzae, including conidia, appressoria, and asc...

journal_title：Genetics

authors： Kershaw MJ,Basiewicz M,Soanes DM,Yan X,Ryder LS,Csukai M,Oses-Ruiz M,Valent B,Talbot NJ

更新日期：2019-01-01 00:00:00

abstract：:Type II topoisomerases are essential ATP-dependent homodimeric enzymes required for transcription, replication, and chromosome segregation. These proteins alter DNA topology by generating transient enzyme-linked double-strand breaks for passage of one DNA strand through another. The central role of type II topoisomera...

journal_title：Genetics

authors： Hohl AM,Thompson M,Soshnev AA,Wu J,Morris J,Hsieh TS,Wu CT,Geyer PK

更新日期：2012-11-01 00:00:00

abstract：:During development signaling pathways coordinate cell fates and regulate the choice between cell survival or programmed cell death. The well-conserved Wingless/Wnt pathway is required for many developmental decisions in all animals. One transducer of the Wingless/Wnt signal is Armadillo/beta-catenin. Drosophila Armadi...

journal_title：Genetics

authors： Cox RT,McEwen DG,Myster DL,Duronio RJ,Loureiro J,Peifer M

更新日期：2000-08-01 00:00:00

abstract：:In diploid Saccharomyces cerevisiae cells, bud-site selection is determined by two cortical landmarks, Bud8p and Bud9p, at the distal and proximal poles, respectively. Their localizations depend on the multigenerational proteins Rax1p/Rax2p. Many genes involved in bud-site selection were identified previously by genom...

journal_title：Genetics

authors： Kato Y,Kawasaki H,Ohyama Y,Morishita T,Iwasaki H,Kokubo T,Hirano H

更新日期：2011-08-01 00:00:00

abstract：:To identify in vivo pathways that compensate for impaired proliferating cell nuclear antigen (PCNA or Pol30p in yeast) activity, we performed a synthetic lethal screen with the yeast pol30-104 mutation. We identified nine mutations that display synthetic lethality with pol30-104; three mutations affected the structura...

journal_title：Genetics

authors： Merrill BJ,Holm C

更新日期：1998-02-01 00:00:00

abstract：:Identifying loci under natural selection from genomic surveys is of great interest in different research areas. Commonly used methods to separate neutral effects from adaptive effects are based on locus-specific population differentiation coefficients to identify outliers. Here we extend such an approach to estimate d...

journal_title：Genetics

authors： Foll M,Gaggiotti O

更新日期：2008-10-01 00:00:00

abstract：:Following transformation of a Drosophila melanogaster true M strain with an autonomous P element, six lines were established and monitored for their molecular and phenotypic properties during a 4-yr period. The number of P elements increased with time in all the lines but the rate of increase differed among lines. Fur...

journal_title：Genetics

authors： Daniels SB,Clark SH,Kidwell MG,Chovnick A

更新日期：1987-04-01 00:00:00

abstract：:Doubly uniparental inheritance (DUI) provides an intriguing system for addressing aspects of molecular evolution and intermolecular recombination of mitochondrial DNA. For this reason, a large sequence analysis has been performed on Tapes philippinarum (Bivalvia, Veneridae), which has mitochondrial DNA heteroplasmy th...

journal_title：Genetics

authors： Passamonti M,Boore JL,Scali V

更新日期：2003-06-01 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：: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：:Caenorhabditis elegans' behavioral states, like those of other animals, are shaped by its immediate environment, its past experiences, and by internal factors. We here review the literature on C. elegans behavioral states and their regulation. We discuss dwelling and roaming, local and global search, mate finding, sle...

journal_title：Genetics

authors： Flavell SW,Raizen DM,You YJ

更新日期：2020-10-01 00:00:00

abstract：:Long-range migrations and the resulting admixtures between populations have been important forces shaping human genetic diversity. Most existing methods for detecting and reconstructing historical admixture events are based on allele frequency divergences or patterns of ancestry segments in chromosomes of admixed indi...

journal_title：Genetics

authors： Loh PR,Lipson M,Patterson N,Moorjani P,Pickrell JK,Reich D,Berger B

更新日期：2013-04-01 00:00:00

abstract：:The recent progress in sequencing technologies makes possible large-scale medical sequencing efforts to assess the importance of rare variants in complex diseases. The results of such efforts depend heavily on the use of efficient study designs and analytical methods. We introduce here a unified framework for associat...

journal_title：Genetics

authors： Ionita-Laza I,Ottman R

更新日期：2011-11-01 00:00:00

abstract：:In budding yeast, at least 10 proteins are required for formation of the double-strand breaks (DSBs) that initiate meiotic recombination. Spo11 is the enzyme responsible for cleaving DNA and is found in a complex that also contains Ski8, Rec102, and Rec104. The Mre11/Rad50/Xrs2 complex is required for both DSB formati...

journal_title：Genetics

authors： Li J,Hooker GW,Roeder GS

更新日期：2006-08-01 00:00:00