Caenorhabditis elegans Heterochromatin protein 1 (HPL-2) links developmental plasticity, longevity and lipid metabolism.

Abstract:

BACKGROUND:Heterochromatin protein 1 (HP1) family proteins have a well-characterized role in heterochromatin packaging and gene regulation. Their function in organismal development, however, is less well understood. Here we used genome-wide expression profiling to assess novel functions of the Caenorhabditis elegans HP1 homolog HPL-2 at specific developmental stages. RESULTS:We show that HPL-2 regulates the expression of germline genes, extracellular matrix components and genes involved in lipid metabolism. Comparison of our expression data with HPL-2 ChIP-on-chip profiles reveals that a significant number of genes up- and down-regulated in the absence of HPL-2 are bound by HPL-2. Germline genes are specifically up-regulated in hpl-2 mutants, consistent with the function of HPL-2 as a repressor of ectopic germ cell fate. In addition, microarray results and phenotypic analysis suggest that HPL-2 regulates the dauer developmental decision, a striking example of phenotypic plasticity in which environmental conditions determine developmental fate. HPL-2 acts in dauer at least partly through modulation of daf-2/IIS and TGF-β signaling pathways, major determinants of the dauer program. hpl-2 mutants also show increased longevity and altered lipid metabolism, hallmarks of the long-lived, stress resistant dauers. CONCLUSIONS:Our results suggest that the worm HP1 homologue HPL-2 may coordinately regulate dauer diapause, longevity and lipid metabolism, three processes dependent on developmental input and environmental conditions. Our findings are of general interest as a paradigm of how chromatin factors can both stabilize development by buffering environmental variation, and guide the organism through remodeling events that require plasticity of cell fate regulation.

journal_name

Genome Biol

journal_title

Genome biology

authors

Meister P,Schott S,Bedet C,Xiao Y,Rohner S,Bodennec S,Hudry B,Molin L,Solari F,Gasser SM,Palladino F

doi

10.1186/gb-2011-12-12-r123

subject

Has Abstract

pub_date

2011-12-20 00:00:00

pages

R123

issue

12

eissn

1474-7596

issn

1474-760X

pii

gb-2011-12-12-r123

journal_volume

12

pub_type

杂志文章
  • The rate of the molecular clock and the cost of gratuitous protein synthesis.

    abstract:BACKGROUND:The nature of the protein molecular clock, the protein-specific rate of amino acid substitutions, is among the central questions of molecular evolution. Protein expression level is the dominant determinant of the clock rate in a number of organisms. It has been suggested that highly expressed proteins evolve...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2010-11-9-r98

    authors: Plata G,Gottesman ME,Vitkup D

    更新日期:2010-01-01 00:00:00

  • The functional spectrum of low-frequency coding variation.

    abstract:BACKGROUND:Rare coding variants constitute an important class of human genetic variation, but are underrepresented in current databases that are based on small population samples. Recent studies show that variants altering amino acid sequence and protein function are enriched at low variant allele frequency, 2 to 5%, b...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2011-12-9-r84

    authors: Marth GT,Yu F,Indap AR,Garimella K,Gravel S,Leong WF,Tyler-Smith C,Bainbridge M,Blackwell T,Zheng-Bradley X,Chen Y,Challis D,Clarke L,Ball EV,Cibulskis K,Cooper DN,Fulton B,Hartl C,Koboldt D,Muzny D,Smith R,Soug

    更新日期:2011-09-14 00:00:00

  • Escape from X inactivation in mice and humans.

    abstract::A subset of X-linked genes escapes silencing by X inactivation and is expressed from both X chromosomes in mammalian females. Species-specific differences in the identity of these genes have recently been discovered, suggesting a role in the evolution of sex differences. Chromatin analyses have aimed to discover how g...

    journal_title:Genome biology

    pub_type: 杂志文章,评审

    doi:10.1186/gb-2010-11-6-213

    authors: Berletch JB,Yang F,Disteche CM

    更新日期:2010-01-01 00:00:00

  • KDM5B focuses H3K4 methylation near promoters and enhancers during embryonic stem cell self-renewal and differentiation.

    abstract:BACKGROUND:Pluripotency of embryonic stem (ES) cells is controlled in part by chromatin-modifying factors that regulate histone H3 lysine 4 (H3K4) methylation. However, it remains unclear how H3K4 demethylation contributes to ES cell function. RESULTS:Here, we show that KDM5B, which demethylates lysine 4 of histone H3...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2014-15-2-r32

    authors: Kidder BL,Hu G,Zhao K

    更新日期:2014-02-04 00:00:00

  • Exome-chip meta-analysis identifies novel loci associated with cardiac conduction, including ADAMTS6.

    abstract:BACKGROUND:Genome-wide association studies conducted on QRS duration, an electrocardiographic measurement associated with heart failure and sudden cardiac death, have led to novel biological insights into cardiac function. However, the variants identified fall predominantly in non-coding regions and their underlying me...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-018-1457-6

    authors: Prins BP,Mead TJ,Brody JA,Sveinbjornsson G,Ntalla I,Bihlmeyer NA,van den Berg M,Bork-Jensen J,Cappellani S,Van Duijvenboden S,Klena NT,Gabriel GC,Liu X,Gulec C,Grarup N,Haessler J,Hall LM,Iorio A,Isaacs A,Li-Gao R,

    更新日期:2018-07-17 00:00:00

  • Domain atrophy creates rare cases of functional partial protein domains.

    abstract:BACKGROUND:Protein domains display a range of structural diversity, with numerous additions and deletions of secondary structural elements between related domains. We have observed a small number of cases of surprising large-scale deletions of core elements of structural domains. We propose a new concept called domain ...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-015-0655-8

    authors: Prakash A,Bateman A

    更新日期:2015-04-30 00:00:00

  • Searching for SNPs with cloud computing.

    abstract::As DNA sequencing outpaces improvements in computer speed, there is a critical need to accelerate tasks like alignment and SNP calling. Crossbow is a cloud-computing software tool that combines the aligner Bowtie and the SNP caller SOAPsnp. Executing in parallel using Hadoop, Crossbow analyzes data comprising 38-fold ...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2009-10-11-r134

    authors: Langmead B,Schatz MC,Lin J,Pop M,Salzberg SL

    更新日期:2009-01-01 00:00:00

  • Genome-wide analysis of the maternal-to-zygotic transition in Drosophila primordial germ cells.

    abstract:BACKGROUND:During the maternal-to-zygotic transition (MZT) vast changes in the embryonic transcriptome are produced by a combination of two processes: elimination of maternally provided mRNAs and synthesis of new transcripts from the zygotic genome. Previous genome-wide analyses of the MZT have been restricted to whole...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2012-13-2-r11

    authors: Siddiqui NU,Li X,Luo H,Karaiskakis A,Hou H,Kislinger T,Westwood JT,Morris Q,Lipshitz HD

    更新日期:2012-02-20 00:00:00

  • Asymmetric relationships between proteins shape genome evolution.

    abstract:BACKGROUND:The relationships between proteins are often asymmetric: one protein (A) depends for its function on another protein (B), but the second protein does not depend on the first. In metabolic networks there are multiple pathways that converge into one central pathway. The enzymes in the converging pathways depen...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2009-10-2-r19

    authors: Notebaart RA,Kensche PR,Huynen MA,Dutilh BE

    更新日期:2009-02-12 00:00:00

  • Transcriptome analysis reveals new insight into appressorium formation and function in the rice blast fungus Magnaporthe oryzae.

    abstract:BACKGROUND:Rice blast disease is caused by the filamentous Ascomycetous fungus Magnaporthe oryzae and results in significant annual rice yield losses worldwide. Infection by this and many other fungal plant pathogens requires the development of a specialized infection cell called an appressorium. The molecular processe...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2008-9-5-r85

    authors: Oh Y,Donofrio N,Pan H,Coughlan S,Brown DE,Meng S,Mitchell T,Dean RA

    更新日期:2008-01-01 00:00:00

  • Genomics through the lens of next-generation sequencing.

    abstract::A report on the 23rd annual meeting on 'The Biology of Genomes', 11-15 May 2010, Cold Spring Harbor, USA. ...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2010-11-6-306

    authors: Capra JA,Carbone L,Riesenfeld SJ,Wall JD

    更新日期:2010-01-01 00:00:00

  • Discovery and functional prioritization of Parkinson's disease candidate genes from large-scale whole exome sequencing.

    abstract:BACKGROUND:Whole-exome sequencing (WES) has been successful in identifying genes that cause familial Parkinson's disease (PD). However, until now this approach has not been deployed to study large cohorts of unrelated participants. To discover rare PD susceptibility variants, we performed WES in 1148 unrelated cases an...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-017-1147-9

    authors: Jansen IE,Ye H,Heetveld S,Lechler MC,Michels H,Seinstra RI,Lubbe SJ,Drouet V,Lesage S,Majounie E,Gibbs JR,Nalls MA,Ryten M,Botia JA,Vandrovcova J,Simon-Sanchez J,Castillo-Lizardo M,Rizzu P,Blauwendraat C,Chouhan AK

    更新日期:2017-01-30 00:00:00

  • The plasticity of the grapevine berry transcriptome.

    abstract:BACKGROUND:Phenotypic plasticity refers to the range of phenotypes a single genotype can express as a function of its environment. These phenotypic variations are attributable to the effect of the environment on the expression and function of genes influencing plastic traits. We investigated phenotypic plasticity in gr...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2013-14-6-r54

    authors: Dal Santo S,Tornielli GB,Zenoni S,Fasoli M,Farina L,Anesi A,Guzzo F,Delledonne M,Pezzotti M

    更新日期:2013-06-07 00:00:00

  • Single-cell sequencing reveals karyotype heterogeneity in murine and human malignancies.

    abstract:BACKGROUND:Chromosome instability leads to aneuploidy, a state in which cells have abnormal numbers of chromosomes, and is found in two out of three cancers. In a chromosomal instable p53 deficient mouse model with accelerated lymphomagenesis, we previously observed whole chromosome copy number changes affecting all ly...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-016-0971-7

    authors: Bakker B,Taudt A,Belderbos ME,Porubsky D,Spierings DC,de Jong TV,Halsema N,Kazemier HG,Hoekstra-Wakker K,Bradley A,de Bont ES,van den Berg A,Guryev V,Lansdorp PM,Colomé-Tatché M,Foijer F

    更新日期:2016-05-31 00:00:00

  • ELXR: a resource for rapid exon-directed sequence analysis.

    abstract::ELXR (Exon Locator and Extractor for Resequencing) streamlines the process of determining exon/intron boundaries and designing PCR and sequencing primers for high-throughput resequencing of exons. We have pre-computed ELXR primer sets for all exons identified from the human, mouse, and rat mRNA reference sequence (Ref...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2004-5-5-r36

    authors: Schageman JJ,Horton CJ,Niu S,Garner HR,Pertsemlidis A

    更新日期:2004-01-01 00:00:00

  • Uncovering metabolic pathways relevant to phenotypic traits of microbial genomes.

    abstract::Identifying the biochemical basis of microbial phenotypes is a main objective of comparative genomics. Here we present a novel method using multivariate machine learning techniques for comparing automatically derived metabolic reconstructions of sequenced genomes on a large scale. Applying our method to 266 genomes di...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2009-10-3-r28

    authors: Kastenmüller G,Schenk ME,Gasteiger J,Mewes HW

    更新日期:2009-01-01 00:00:00

  • Pigs taking wing with transposons and recombinases.

    abstract::Swine production has been an important part of our lives since the late Mesolithic or early Neolithic periods, and ranks number one in world meat production. Pig production also contributes to high-value-added medical markets in the form of pharmaceuticals, heart valves, and surgical materials. Genetic engineering, in...

    journal_title:Genome biology

    pub_type: 杂志文章,评审

    doi:10.1186/gb-2007-8-s1-s13

    authors: Clark KJ,Carlson DF,Fahrenkrug SC

    更新日期:2007-01-01 00:00:00

  • The developmental regulator PKL is required to maintain correct DNA methylation patterns at RNA-directed DNA methylation loci.

    abstract:BACKGROUND:The chromodomain helicase DNA-binding family of ATP-dependent chromatin remodeling factors play essential roles during eukaryote growth and development. They are recruited by specific transcription factors and regulate the expression of developmentally important genes. Here, we describe an unexpected role in...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-017-1226-y

    authors: Yang R,Zheng Z,Chen Q,Yang L,Huang H,Miki D,Wu W,Zeng L,Liu J,Zhou JX,Ogas J,Zhu JK,He XJ,Zhang H

    更新日期:2017-05-31 00:00:00

  • New tricks for old NODs.

    abstract::Recent work has identified the human NOD-like receptor NLRX1 as a negative regulator of intracellular signaling leading to type I interferon production. Here we discuss these findings and the questions and implications they raise regarding the function of NOD-like receptors in the antiviral response. ...

    journal_title:Genome biology

    pub_type: 杂志文章,评审

    doi:10.1186/gb-2008-9-4-217

    authors: Pietras EM,Cheng G

    更新日期:2008-04-25 00:00:00

  • Rapid draft sequencing and real-time nanopore sequencing in a hospital outbreak of Salmonella.

    abstract:BACKGROUND:Foodborne outbreaks of Salmonella remain a pressing public health concern. We recently detected a large outbreak of Salmonella enterica serovar Enteritidis phage type 14b affecting more than 30 patients in our hospital. This outbreak was linked to community, national and European-wide cases. Hospital patient...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-015-0677-2

    authors: Quick J,Ashton P,Calus S,Chatt C,Gossain S,Hawker J,Nair S,Neal K,Nye K,Peters T,De Pinna E,Robinson E,Struthers K,Webber M,Catto A,Dallman TJ,Hawkey P,Loman NJ

    更新日期:2015-05-30 00:00:00

  • Divergence in cis-regulatory networks: taking the 'species' out of cross-species analysis.

    abstract::Many essential transcription factors have conserved roles in regulating biological programs, yet their genomic occupancy can diverge significantly. A new study demonstrates that such variations are primarily due to cis-regulatory sequences, rather than differences between the regulators or nuclear environments. ...

    journal_title:Genome biology

    pub_type: 杂志文章,评审

    doi:10.1186/gb-2008-9-11-240

    authors: Zinzen RP,Furlong EE

    更新日期:2008-01-01 00:00:00

  • Activity map of the tammar X chromosome shows that marsupial X inactivation is incomplete and escape is stochastic.

    abstract:BACKGROUND:X chromosome inactivation is a spectacular example of epigenetic silencing. In order to deduce how this complex system evolved, we examined X inactivation in a model marsupial, the tammar wallaby (Macropus eugenii). In marsupials, X inactivation is known to be paternal, incomplete and tissue-specific, and oc...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2010-11-12-r122

    authors: Al Nadaf S,Waters PD,Koina E,Deakin JE,Jordan KS,Graves JA

    更新日期:2010-01-01 00:00:00

  • Accuracy and quality of massively parallel DNA pyrosequencing.

    abstract:BACKGROUND:Massively parallel pyrosequencing systems have increased the efficiency of DNA sequencing, although the published per-base accuracy of a Roche GS20 is only 96%. In genome projects, highly redundant consensus assemblies can compensate for sequencing errors. In contrast, studies of microbial diversity that cat...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2007-8-7-r143

    authors: Huse SM,Huber JA,Morrison HG,Sogin ML,Welch DM

    更新日期:2007-01-01 00:00:00

  • A showcase of future plant biology: moving towards next-generation plant genetics assisted by genome sequencing and systems biology.

    abstract::A report on the Cold Spring Harbor Asia conference on Genome Assisted Biology of Crops and Model Plant Systems Meeting, held in Suzhou, China, April 21-25, 2014. ...

    journal_title:Genome biology

    pub_type:

    doi:10.1186/gb4176

    authors: Lee I

    更新日期:2014-05-23 00:00:00

  • An improved method for detecting and delineating genomic regions with altered gene expression in cancer.

    abstract::Genomic regions with altered gene expression are a characteristic feature of cancer cells. We present a novel method for identifying such regions in gene expression maps. This method is based on total variation minimization, a classical signal restoration technique. In systematic evaluations, we show that our method c...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2008-9-1-r13

    authors: Nilsson B,Johansson M,Heyden A,Nelander S,Fioretos T

    更新日期:2008-01-21 00:00:00

  • Recurrent insertion and duplication generate networks of transposable element sequences in the Drosophila melanogaster genome.

    abstract:BACKGROUND:The recent availability of genome sequences has provided unparalleled insights into the broad-scale patterns of transposable element (TE) sequences in eukaryotic genomes. Nevertheless, the difficulties that TEs pose for genome assembly and annotation have prevented detailed, quantitative inferences about the...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2006-7-11-r112

    authors: Bergman CM,Quesneville H,Anxolabéhère D,Ashburner M

    更新日期:2006-01-01 00:00:00

  • Detection of circular RNA expression and related quantitative trait loci in the human dorsolateral prefrontal cortex.

    abstract:BACKGROUND:Circular RNAs (circRNAs) are implicated in various biological processes. As a layer of the gene regulatory network, circRNA expression is also an intermediate phenotype bridging genetic variation and phenotypic changes. Thus, analyzing circRNA expression variation will shed light on molecular fundamentals of...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-019-1701-8

    authors: Liu Z,Ran Y,Tao C,Li S,Chen J,Yang E

    更新日期:2019-05-20 00:00:00

  • High-resolution genomic analysis: the tumor-immune interface comes into focus.

    abstract::A genomic analysis of heterogeneous colorectal tumor samples has uncovered interactions between immunophenotype and various aspects of tumor biology, with implications for informing the choice of immunotherapies for specific patients and guiding the design of personalized neoantigen-based vaccines. ...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-015-0631-3

    authors: Havel JJ,Chan TA

    更新日期:2015-03-31 00:00:00

  • Transposable elements in the mammalian embryo: pioneers surviving through stealth and service.

    abstract::Transposable elements (TEs) are notable drivers of genetic innovation. Over evolutionary time, TE insertions can supply new promoter, enhancer, and insulator elements to protein-coding genes and establish novel, species-specific gene regulatory networks. Conversely, ongoing TE-driven insertional mutagenesis, nonhomolo...

    journal_title:Genome biology

    pub_type: 杂志文章,评审

    doi:10.1186/s13059-016-0965-5

    authors: Gerdes P,Richardson SR,Mager DL,Faulkner GJ

    更新日期:2016-05-09 00:00:00

  • Mining physical protein-protein interactions from the literature.

    abstract:BACKGROUND:Deciphering physical protein-protein interactions is fundamental to elucidating both the functions of proteins and biological processes. The development of high-throughput experimental technologies such as the yeast two-hybrid screening has produced an explosion in data relating to interactions. Since manual...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2008-9-s2-s12

    authors: Huang M,Ding S,Wang H,Zhu X

    更新日期:2008-01-01 00:00:00