Does random X-inactivation in mammals reflect a random choice between two X chromosomes?

abstract：:Synthetics play an important role in quantitative genetic research and plant breeding, but few studies have investigated the application of genomic prediction (GP) to these populations. Synthetics are generated by intermating a small number of parents ([Formula: see text] and thereby possess unique genetic properties,...

journal_title：Genetics

authors： Schopp P,Müller D,Technow F,Melchinger AE

更新日期：2017-01-01 00:00:00

abstract：:The progeny of crosses between wild-type strains of Phycomyces usually do not exhibit all of the expected genotypes from meiosis. By backcrossing, we have isolated a new (+) mating-type strain, A56, which is nearly isogenic with the (-) wild-type NRRL1555 commonly used in Phycomyces research. Tetrad analysis of the ba...

journal_title：Genetics

authors： Alvarez MI,Eslava AP

更新日期：1983-12-01 00:00:00

abstract：:The vertebrate limb serves as an experimental paradigm to study mechanisms that regulate development of the stereotypical skeletal elements. In this study, we simultaneously inactivated Sall4 using Hoxb6Cre and Plzf in mouse embryos, and found that their combined function regulates development of the proximal-anterior...

journal_title：Genetics

authors： Chen KQ,Tahara N,Anderson A,Kawakami H,Kawakami S,Nishinakamura R,Pandolfi PP,Kawakami Y

更新日期：2020-05-01 00:00:00

abstract：:The Drosophila melanogaster sex-peptide (melSP) is a seminal fluid component that induces postmating responses (PMR) of females via the sex-peptide receptor (SPR) . Although SP orthologs are found in many Drosophila species, their functions remain poorly characterized. It is unknown whether SP functions are conserved ...

journal_title：Genetics

authors： Tsuda M,Peyre JB,Asano T,Aigaki T

更新日期：2015-08-01 00:00:00

abstract：:Orthologous positions of 55 genes associated with height in four human populations were located on the bovine genome. Single nucleotide polymorphisms close to eight of these genes were significantly associated with stature in cattle (Bos taurus and Bos indicus). This suggests that these genes may contribute to control...

journal_title：Genetics

authors： Pryce JE,Hayes BJ,Bolormaa S,Goddard ME

更新日期：2011-03-01 00:00:00

abstract：:I describe a method for simulating samples from gene families of size two under a neutral coalescent process, for the case where the duplicate gene either has fixed recently in the population or is still segregating. When a duplicate locus has recently fixed by genetic drift, diversity in the new gene is expected to b...

journal_title：Genetics

authors： Thornton KR

更新日期：2007-10-01 00:00:00

abstract：:We describe a unified set of methods for the inference of demographic history using genealogies reconstructed from gene sequence data. We introduce the skyline plot, a graphical, nonparametric estimate of demographic history. We discuss both maximum-likelihood parameter estimation and demographic hypothesis testing. S...

journal_title：Genetics

authors： Pybus OG,Rambaut A,Harvey PH

更新日期：2000-07-01 00:00:00

abstract：:A mouse homolog of the Drosophila pair-rule gene Odd Oz (Odz4) maps to the critical region of the l7Rn3 locus on mouse chromosome 7. Here we show that Odz4 is an excellent candidate for this allelic series because (1) it spans the entire critical region, (2) the phenotypes correlate with embryonic expression, (3) the ...

journal_title：Genetics

authors： Lossie AC,Nakamura H,Thomas SE,Justice MJ

更新日期：2005-01-01 00:00:00

abstract：:New rudimentary (r) mutants have been isolated following mutagenesis with ethyl methanesulfonate (r(LE)), ICR-170 (r(LI)) and X rays (r(LX)). From wing phenotype measurements on homoallelic females, it has been shown that the r(LE) mutant series includes several leaky alleles, as well as alleles that produce moderate ...

journal_title：Genetics

authors： Rawls JM,Porter LA

更新日期：1979-09-01 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：:The mutational origin and subsequent evolution of de novo genes, which are hypothesized to be genes of recent origin that are not obviously related to ancestral coding sequence, are poorly understood. However, accumulating evidence suggests that such genes may often function in male reproduction. Here we use testis-de...

journal_title：Genetics

authors： Begun DJ,Lindfors HA,Kern AD,Jones CD

更新日期：2007-06-01 00:00:00

abstract：:bld2-1 mutant Chlamydomonas reinhardtii strains assemble basal bodies with singlet microtubules; bld2-1 cells display flagellar assembly defects as well as positioning defects of the mitotic spindle and cleavage furrow. To further understand the role of the BLD2 gene, we have isolated three new bld2 alleles and three ...

journal_title：Genetics

authors： Preble AM,Giddings TH Jr,Dutcher SK

更新日期：2001-01-01 00:00:00

abstract：:Bacteriophage T4 DNA metabolism is largely insulated from that of its host, although some host functions assist in the repair of T4 DNA damage. Environmental factors sometimes affect survival and mutagenesis after ultraviolet (UV) irradiation of T4, and can affect mutagenesis in many organisms. We therefore tested the...

journal_title：Genetics

authors： Smith LA,Drake JW

更新日期：1998-04-01 00:00:00

abstract：:Genetic analysis of 131 independent transpositions of the tetracycline-resistance element Tn10 from a single site in phage P22 into the histidine operon of Salmonella typhimurium reveals that Tn10 insertions are not randomly distributed along this chromosomal target. The insertions occur in 22 different "clusters"; in...

journal_title：Genetics

authors： Kleckner N,Steele DA,Reichardt K,Botstein D

更新日期：1979-08-01 00:00:00

abstract：:Critically shortened telomeres can be subjected to DNA repair events that generate end-to-end chromosome fusions. The resulting dicentric chromosomes can enter breakage-fusion-bridge cycles, thereby impeding elucidation of the structures of the initial fusion events and a mechanistic understanding of their genesis. Cu...

journal_title：Genetics

authors： Lowden MR,Meier B,Lee TW,Hall J,Ahmed S

更新日期：2008-10-01 00:00:00

abstract：:Infantile neuronal ceroid lipofuscinosis (INCL) is a pediatric neurodegenerative disease caused by mutations in the human CLN1 gene. CLN1 encodes palmitoyl-protein thioesterase 1 (PPT1), suggesting an important role for the regulation of palmitoylation in normal neuronal function. To further elucidate Ppt1 function, w...

journal_title：Genetics

authors： Buff H,Smith AC,Korey CA

更新日期：2007-05-01 00:00:00

abstract：:Genomic resources for hundreds of species of evolutionary, agricultural, economic, and medical importance are unavailable due to the expense of well-assembled genome sequences and difficulties with multigenerational studies. Teleost fish provide many models for human disease but possess anciently duplicated genomes th...

journal_title：Genetics

authors： Amores A,Catchen J,Ferrara A,Fontenot Q,Postlethwait JH

更新日期：2011-08-01 00:00:00

abstract：:Zinc plays many critical roles in biological systems: zinc bound to proteins has structural and catalytic functions, and zinc is proposed to act as a signaling molecule. Because zinc deficiency and excess result in toxicity, animals have evolved sophisticated mechanisms for zinc metabolism and homeostasis. However, th...

journal_title：Genetics

authors： Bruinsma JJ,Schneider DL,Davis DE,Kornfeld K

更新日期：2008-06-01 00:00:00

abstract：:The Drosophila melanogaster Chd3 gene encodes a member of the CHD group of SNF2/RAD54 ATPases. CHD proteins are conserved from yeast to man and many are subunits of chromatin-remodeling complexes that facilitate transcription. Drosophila CHD3 proteins are not found in protein complexes, but as monomers that remodel ch...

journal_title：Genetics

authors： Cooper MT,Conant AW,Kennison JA

更新日期：2010-07-01 00:00:00

abstract：:Four genes encoding the major egg yolk polypeptides of the Mediterranean fruit fly Ceratitis capitata, vitellogenins 1 and 2 (VG1 and VG2), were cloned, characterized and partially sequenced. The genes are located on the same region of chromosome 5 and are organized in pairs, each encoding the two polypeptides on oppo...

journal_title：Genetics

authors： Rina M,Savakis C

更新日期：1991-04-01 00:00:00

abstract：:Determining parentage is a fundamental problem in biology and in applications such as identifying pedigrees. Difficulties inferring parentage derive from extensive inbreeding within the population, whether natural or planned; using an insufficient number of hypervariable loci; and from allele mismatches caused by muta...

journal_title：Genetics

authors： Berry DA,Seltzer JD,Xie C,Wright DL,Jones ES,Sebastian S,Smith JS

更新日期：2003-09-01 00:00:00

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：:For more than 60 years, evolutionary cytogeneticists have been using naturally occurring chromosomal inversions to infer phylogenetic histories, especially in insects with polytene chromosomes. The validity of this method is predicated on the assumption that inversions arise only once in the history of a lineage, so t...

journal_title：Genetics

authors： Caccone A,Min GS,Powell JR

更新日期：1998-10-01 00:00:00

abstract：:We have shown that the phenotypes resulting from hypomorphic mutations (causing reduction but not complete loss of function) in two X-linked genes can be used as a genetic assay for X-chromosome dosage compensation in Caenorhabditis elegans between males (XO) and hermaphrodites (XX). In addition we show that recessive...

journal_title：Genetics

authors： Meneely PM,Wood WB

更新日期：1987-09-01 00:00:00

abstract：:Interchromosomal duplications are especially important for the study of X-linked genes. Males inheriting a mutation in a vital X-linked gene cannot survive unless there is a wild-type copy of the gene duplicated elsewhere in the genome. Rescuing the lethality of an X-linked mutation with a duplication allows the mutat...

journal_title：Genetics

authors： Cook RK,Deal ME,Deal JA,Garton RD,Brown CA,Ward ME,Andrade RS,Spana EP,Kaufman TC,Cook KR

更新日期：2010-12-01 00:00:00

abstract：:N6-methyladenosine (m6A), catalyzed by Mettl3 methyltransferase, is a highly conserved epigenetic modification in eukaryotic messenger RNA (mRNA). Previous studies have implicated m6A modification in multiple biological processes, but the in vivo function of m6A has been difficult to study, because mettl3 mutants are ...

journal_title：Genetics

authors： Xia H,Zhong C,Wu X,Chen J,Tao B,Xia X,Shi M,Zhu Z,Trudeau VL,Hu W

更新日期：2018-02-01 00:00:00

abstract：:The Spt-Ada-Gcn5-acetyltransferase (SAGA) complex of Saccharomyces cerevisiae is a multifunctional coactivator complex that has been shown to regulate transcription by distinct mechanisms. Previous results have shown that the Spt3 and Spt8 components of SAGA regulate initiation of transcription of particular genes by ...

journal_title：Genetics

authors： Laprade L,Rose D,Winston F

更新日期：2007-12-01 00:00:00

abstract：:Seventeen lines, each homozygous for a different X chromosome but all with a common autosomal genetic blackground, were constructed and assayed for abdominal bristle number to determine whether dosage compensation operates for sex-linked genes affecting this character. --The regression coefficient of male mean on fema...

journal_title：Genetics

authors： Frankham R

更新日期：1977-01-01 00:00:00

abstract：:Using an insertional mutagenesis approach, a series of Neurospora crassa mutants affected in the ability to control entry into the conidiation developmental program were isolated. One such mutant, GTH16-T4, was found to lack normal vegetative hyphae and to undergo constitutive conidiation. The affected gene has been n...

journal_title：Genetics

authors： Kothe GO,Free SJ

更新日期：1998-05-01 00:00:00

abstract：:A method for the estimation of population dynamic history from sequence data is described and used to investigate the past population dynamics of HIV-1 subtypes A and B. Using both gag and env gene alignments the effective population size of each subtype is estimated and found to be surprisingly small. This may be a r...

journal_title：Genetics

authors： Grassly NC,Harvey PH,Holmes EC

更新日期：1999-02-01 00:00:00