Abstract：
:The distribution within anthers of maize plants of microsporocytes of differing crossover class was studied by application of the serial-sectioning technique to plants heterozygous for a paracentric inversion. In such material, cells with four-strand double crossovers within the inversion are distinguishable from cells with other classes of crossovers within the inverted region and from cells with no crossovers within the inversion. Evidence was found for coarse clustering of cells with four-strand double crossovers within the inversion and for coarse clustering of cells of other crossover classes (with at least one crossover within the inversion). The local frequencies of these two major categories of crossover cells appeared to vary independently of each other, with regional increases in each occurring at the expense of noncrossover cells. There is also some suggestion that cells with four-strand doubles within the inversion may be clustered independently of other double-crossover classes within the inversion, but these other classes are not directly scorable.
journal_name
Geneticsjournal_title
Geneticsauthors
Maguire MPsubject
Has Abstractpub_date
1980-05-01 00:00:00pages
143-57issue
1eissn
0016-6731issn
1943-2631journal_volume
95pub_type
杂志文章相关文献
GENETICS文献大全abstract：:DNA double-strand breaks (DSBs) are repaired by homologous recombination (HR) and nonhomologous end-joining (NHEJ). NHEJ in yeast chromosomes has been observed only when HR is blocked, as in rad52 mutants or in the absence of a homologous repair template. We detected yKu70p-dependent imprecise NHEJ at a frequency of a...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：2001-02-01 00:00:00
abstract：:The Aspergillus nidulans rcoADelta mutant exhibits growth and developmental defects. We show that the rcoADelta mutant lacks cleistothecia and is self-sterile. In crosses with wild-type strains, rcoADelta nuclei do not contribute to the cleistothecial walls. Furthermore, sexual development resulting from veA overexpre...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.106.062893
更新日期：2006-11-01 00:00:00
abstract：:Nucleostemin 3 (NS3) is an evolutionarily conserved protein with profound roles in cell growth and viability. Here we analyze cell-autonomous and non-cell-autonomous growth control roles of NS3 in Drosophila and demonstrate its GTPase activity using genetic and biochemical assays. Two null alleles of ns3, and RNAi, de...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.112.149104
更新日期：2013-05-01 00:00:00
abstract：:Mendelian loci that control the expression levels of transcripts are called expression quantitative trait loci (eQTL). When mapping eQTL, we often deal with thousands of expression traits simultaneously, which complicates the statistical model and data analysis. Two simple approaches may be taken in eQTL analysis: (1)...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.106.065599
更新日期：2007-05-01 00:00:00
abstract：:The resistance of rice to its bacterial blight pathogen Xanthomonas oryzae pv. oryzae (Xoo) has both qualitative and quantitative components that were investigated using three near-isogenic line sets for four resistance (R) genes (Xa4, xa5, xa13, and Xa21) and 12 Xoo races. Our results indicate that these two resistan...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：2001-10-01 00:00:00
abstract：:Parameters of continuous distributions of effects and rates of spontaneous mutation for relative viability in Drosophila are estimated by maximum likelihood from data of two published experiments on accumulation of mutations on protected second chromosomes. A model of equal mutant effects gives a poor fit to the data ...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1994-12-01 00:00:00
abstract：:Analysis of raw pooled data from distinct studies of a single question generates a single statistical conclusion with greater power and precision than conventional metaanalysis based on within-study estimates. However, conducting analyses with pooled genetic data, in particular, is a daunting task that raises importan...
journal_title：Genetics
pub_type： 杂志文章,meta分析
doi：
更新日期：2001-11-01 00:00:00
abstract：:Individual inbreeding and historical demography can be estimated by analyzing runs of homozygosity (ROH), which are indicative of chromosomal segments of identity by descent (IBD). Such analyses have so far been rare in natural populations due to limited genomic resources. We analyzed ROH in whole genome sequences fro...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.116.198861
更新日期：2017-03-01 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
pub_type： 杂志文章
doi：
更新日期：1979-06-01 00:00:00
abstract：:To identify genomic regions required for establishment and patterning of the epidermis, we screened 58 deficiencies that collectively delete at least approximately 67% of the Caenorhabditis elegans genome. The epidermal pattern of deficiency homozygous embryos was analyzed by examining expression of a marker specific ...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1997-05-01 00:00:00
abstract：:Previously we have shown that the nucleolus organizer region (NOR) of Neurospora crassa changes size frequently during the premeiotic portion of the sexual phase. Here, we have investigated whether these changes in size originate only in specific regions of the NOR, or are distributed throughout the NOR. In two specia...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1990-10-01 00:00:00
abstract：:To identify the factors (selective or mutational) that affect the distribution of transposable elements (TEs) within a genome, it is necessary to compare the pattern of newly arising element insertions to the pattern of element insertions that have been fixed in a population. To do this, we analyzed the distribution o...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：2003-11-01 00:00:00
abstract：:Grain yield is a major goal for the improvement of durum wheat, particularly in drought-prone areas. In this study, the genetic basis of grain yield (GY), heading date (HD), and plant height (PH) was investigated in a durum wheat population of 249 recombinant inbred lines evaluated in 16 environments (10 rainfed and 6...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.107.077297
更新日期：2008-01-01 00:00:00
abstract：:A previously employed method that uses the composition of noncoding DNA as the basis of a test for selection between synonymous codons in plastid genes is reevaluated. The test requires the assumption that in the absence of selective differences between synonymous codons the composition of silent sites in coding seque...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：2001-09-01 00:00:00
abstract：:Maintenance of proper neuronal excitability is vital to nervous system function and normal behavior. A subset of Drosophila mutants that exhibit altered behavior also exhibit defective motor neuron excitability, which can be monitored with electrophysiological methods. One such mutant is the P-element insertion mutant...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：2002-07-01 00:00:00
abstract：:Dealing with physiological stress is a necessity for all organisms, and the pathways charged with this task are highly conserved in Metazoa . Accumulating evidence highlights cell-nonautonomous activation as an important mode of integrating stress responses at the organism level. Work in Caenorhabditis elegans highlig...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.118.301446
更新日期：2018-12-01 00:00:00
abstract：:Stress caused by the increased salinity of irrigated fields impairs plant growth and is one of the major constraints that limits crop productivity in many important agricultural areas. As a contribution to solving such agronomic problems, we have carried out a large-scale screening for Arabidopsis thaliana mutants ind...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：2000-01-01 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
pub_type： 杂志文章
doi：10.1534/genetics.109.109538
更新日期：2010-02-01 00:00:00
abstract：:A unique aspect of meiosis is the segregation of homologous chromosomes at the meiosis I division. The pairing of homologous chromosomes is a critical aspect of meiotic prophase I that aids proper disjunction at anaphase I. We have used a site-specific recombination assay in Saccharomyces cerevisiae to examine allelic...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.105.050658
更新日期：2006-07-01 00:00:00
abstract：:The binding of alpha-factor to its receptor (Ste2p) activates a G-protein-signaling pathway leading to conjugation of MATa cells of the budding yeast S. cerevisiae. We conducted a genetic screen to identify constitutively activating mutations in the N-terminal region of the alpha-factor receptor that includes transmem...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：2002-02-01 00:00:00
abstract：:Repair replication of DNA has been studied in first instar larvae of Drosophila melanogaster with isopycnic centrifugation techniques. Larvae were fed BUdR, FUdR, streptomycin, penicillin, and Fungazone for two to four hours prior to exposure to UV, X-rays, MMS, or EMS. Feeding was continued for four hours in the pres...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1974-08-01 00:00:00
abstract：:A location of the structural gene(s) for dopa decarboxylase (EC 4.1.1.26) is proposed on the basis of enzyme determinations in a set of duplication-bearing aneuploids, which revealed only one dosage-sensitive region in the Drosophila genome. This region lies between 36EF and 37D on the left arm of chromosome 2. ...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1975-01-01 00:00:00
abstract：:In yeast, 17 histidine-requiring mutants derived from and interallelically complementary to his1-7 were analyzed. The genetic basis of the complementation response was elucidated by mitotic and meiotic gene conversion. Each allele probably carries an unaltered 7-site mutation and a unique second-site alteration. The s...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1978-11-01 00:00:00
abstract：:The nature of DNA sequence changes induced by methyl methanesulfonate (MMS) at the vermilion locus of Drosophila melanogaster was determined after exposure of postmeiotic male germ cell stages. MMS is a carcinogen with strong preference for base nitrogen alkylation (s = 0.86). The spectrum of 40 intralocus mutations w...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1992-07-01 00:00:00
abstract：:In plants, many major regulatory genes that control plant growth and development have been identified and characterized. Despite a detailed knowledge of the function of these genes little is known about how they contribute to the natural variation for complex traits. To determine whether major regulatory genes of maiz...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.107.080424
更新日期：2007-12-01 00:00:00
abstract：:Initial events in double-strand break repair by homologous recombination in vivo involve homology searching, 3' strand invasion, and new DNA synthesis. While studies in yeast have contributed much to our knowledge of these processes, in comparison, little is known of the early events in the integrated mammalian system...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.110.115196
更新日期：2010-06-01 00:00:00
abstract：:Most species of the Drosophila genus and other Diptera are polymorphic for paracentric inversions. A common observation is that successful inversions are of intermediate size. We test here the hypothesis that the selected property is the recombination length of inversions, not their physical length. If so, physical le...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1999-09-01 00:00:00
abstract：:Drosophila melanogaster males dosage compensate by twofold upregulation of the expression of genes on their single X chromosome. This process requires at least five proteins and two noncoding RNAs, roX1 and roX2, which paint the male X chromosome. We used a deletion analysis to search for functional RNA domains within...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：2003-07-01 00:00:00
abstract：:The mak7-1 mutant loses the killer toxin-encoding M1 dsRNA. MAK7 is RPL4A, one of two genes encoding ribosomal protein L4. KRB1 is a dominant suppressor of mak7-1 that is tightly centromerelinked, but not linked to centromere markers of chromosomes I-XVI. Our orthogonal field agarose gel electrophoresis analysis of ch...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1995-05-01 00:00:00
abstract：:Various management strategies aim at maintaining pesticide resistance frequency under a threshold value by taking advantage of the benefit of the fitness penalty (the cost) expressed by the resistance allele outside the treated area or during the pesticide selection "off years." One method to estimate a fitness cost i...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.104.036541
更新日期：2006-06-01 00:00:00
