Visualization of pseudogenes in intracellular bacteria reveals the different tracks to gene destruction.

Abstract:

BACKGROUND:Pseudogenes reveal ancestral gene functions. Some obligate intracellular bacteria, such as Mycobacterium leprae and Rickettsia spp., carry substantial fractions of pseudogenes. Until recently, horizontal gene transfers were considered to be rare events in obligate host-associated bacteria. RESULTS:We present a visualization tool that displays the relationships and positions of degraded and partially overlapping gene sequences in multiple genomes. With this tool we explore the origin and deterioration patterns of the Rickettsia pseudogenes and find that variably present genes and pseudogenes tend to have been acquired more recently, are more divergent in sequence, and exhibit a different functional profile compared with genes conserved across all species. Overall, the origin of only one-quarter of the variable genes and pseudogenes can be traced back to the common ancestor of Rickettsia and the outgroup genera Orientia and Wolbachia. These sequences contain only a few disruptive mutations and show a broad functional distribution profile, much like the core genes. The remaining genes and pseudogenes are extensively degraded or solely present in a single species. Their functional profile was heavily biased toward the mobile gene pool and genes for components of the cell wall and the lipopolysaccharide. CONCLUSION:Reductive evolution of the vertically inherited genomic core accounts for 25% of the predicted genes in the variable segments of the Rickettsia genomes, whereas 75% stems from the flux of the mobile gene pool along with genes for cell surface structures. Thus, most of the variably present genes and pseudogenes in Rickettsia have arisen from recent acquisitions.

journal_name

Genome Biol

journal_title

Genome biology

authors

Fuxelius HH,Darby AC,Cho NH,Andersson SG

doi

10.1186/gb-2008-9-2-r42

subject

Has Abstract

pub_date

2008-01-01 00:00:00

pages

R42

issue

2

eissn

1474-7596

issn

1474-760X

pii

gb-2008-9-2-r42

journal_volume

9

pub_type

杂志文章
  • Recurrent evolution of heat-responsiveness in Brassicaceae COPIA elements.

    abstract:BACKGROUND:The mobilization of transposable elements (TEs) is suppressed by host genome defense mechanisms. Recent studies showed that the cis-regulatory region of Arabidopsis thaliana COPIA78/ONSEN retrotransposons contains heat-responsive elements (HREs), which cause their activation during heat stress. However, it r...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-016-1072-3

    authors: Pietzenuk B,Markus C,Gaubert H,Bagwan N,Merotto A,Bucher E,Pecinka A

    更新日期:2016-10-11 00:00:00

  • Selection in the evolution of gene duplications.

    abstract:BACKGROUND:Gene duplications have a major role in the evolution of new biological functions. Theoretical studies often assume that a duplication per se is selectively neutral and that, following a duplication, one of the gene copies is freed from purifying (stabilizing) selection, which creates the potential for evolut...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2002-3-2-research0008

    authors: Kondrashov FA,Rogozin IB,Wolf YI,Koonin EV

    更新日期:2002-01-01 00:00:00

  • Improved genome assembly and evidence-based global gene model set for the chordate Ciona intestinalis: new insight into intron and operon populations.

    abstract:BACKGROUND:The draft genome sequence of the ascidian Ciona intestinalis, along with associated gene models, has been a valuable research resource. However, recently accumulated expressed sequence tag (EST)/cDNA data have revealed numerous inconsistencies with the gene models due in part to intrinsic limitations in gene...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2008-9-10-r152

    authors: Satou Y,Mineta K,Ogasawara M,Sasakura Y,Shoguchi E,Ueno K,Yamada L,Matsumoto J,Wasserscheid J,Dewar K,Wiley GB,Macmil SL,Roe BA,Zeller RW,Hastings KE,Lemaire P,Lindquist E,Endo T,Hotta K,Inaba K

    更新日期:2008-10-14 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

  • Copy number variation goes clinical.

    abstract::A report of the First Golden Helix Symposium 'Copy Number Variation (CNV) and Genomic Alterations in Health and Disease', Athens, Greece, 28-29 November 2008. ...

    journal_title:Genome biology

    pub_type:

    doi:10.1186/gb-2009-10-1-301

    authors: Le Caignec C,Redon R

    更新日期:2009-01-01 00:00:00

  • Games with a scientific purpose.

    abstract::The protein folding game Foldit shows that games are an effective way to recruit, engage and organize ordinary citizens to help solve difficult scientific problems. ...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2011-12-12-135

    authors: Good BM,Su AI

    更新日期:2011-12-28 00:00:00

  • mirMark: a site-level and UTR-level classifier for miRNA target prediction.

    abstract::MiRNAs play important roles in many diseases including cancers. However computational prediction of miRNA target genes is challenging and the accuracies of existing methods remain poor. We report mirMark, a new machine learning-based method of miRNA target prediction at the site and UTR levels. This method uses experi...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-014-0500-5

    authors: Menor M,Ching T,Zhu X,Garmire D,Garmire LX

    更新日期:2014-01-01 00:00:00

  • Organizing knowledge to enable personalization of medicine in cancer.

    abstract::Interpretation of the clinical significance of genomic alterations remains the most severe bottleneck preventing the realization of personalized medicine in cancer. We propose a knowledge commons to facilitate collaborative contributions and open discussion of clinical decision-making based on genomic events in cancer...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-014-0438-7

    authors: Good BM,Ainscough BJ,McMichael JF,Su AI,Griffith OL

    更新日期:2014-08-27 00:00:00

  • The nuclear receptor ERβ engages AGO2 in regulation of gene transcription, RNA splicing and RISC loading.

    abstract:BACKGROUND:The RNA-binding protein Argonaute 2 (AGO2) is a key effector of RNA-silencing pathways It exerts a pivotal role in microRNA maturation and activity and can modulate chromatin remodeling, transcriptional gene regulation and RNA splicing. Estrogen receptor beta (ERβ) is endowed with oncosuppressive activities,...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-017-1321-0

    authors: Tarallo R,Giurato G,Bruno G,Ravo M,Rizzo F,Salvati A,Ricciardi L,Marchese G,Cordella A,Rocco T,Gigantino V,Pierri B,Cimmino G,Milanesi L,Ambrosino C,Nyman TA,Nassa G,Weisz A

    更新日期:2017-10-06 00:00:00

  • Mammalian conserved ADAR targets comprise only a small fragment of the human editosome.

    abstract:BACKGROUND:ADAR proteins are among the most extensively studied RNA binding proteins. They bind to their target and deaminate specific adenosines to inosines. ADAR activity is essential, and the editing of a subset of their targets is critical for viability. Recently, a huge number of novel ADAR targets were detected b...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2014-15-1-r5

    authors: Pinto Y,Cohen HY,Levanon EY

    更新日期:2014-01-07 00:00:00

  • MicroRNAs and their isomiRs function cooperatively to target common biological pathways.

    abstract:BACKGROUND:Variants of microRNAs (miRNAs), called isomiRs, are commonly reported in deep-sequencing studies; however, the functional significance of these variants remains controversial. Observational studies show that isomiR patterns are non-random, hinting that these molecules could be regulated and therefore functio...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2011-12-12-r126

    authors: Cloonan N,Wani S,Xu Q,Gu J,Lea K,Heater S,Barbacioru C,Steptoe AL,Martin HC,Nourbakhsh E,Krishnan K,Gardiner B,Wang X,Nones K,Steen JA,Matigian NA,Wood DL,Kassahn KS,Waddell N,Shepherd J,Lee C,Ichikawa J,McKer

    更新日期:2011-12-30 00:00:00

  • PIRCh-seq: functional classification of non-coding RNAs associated with distinct histone modifications.

    abstract::We develop PIRCh-seq, a method which enables a comprehensive survey of chromatin-associated RNAs in a histone modification-specific manner. We identify hundreds of chromatin-associated RNAs in several cell types with substantially less contamination by nascent transcripts. Non-coding RNAs are found enriched on chromat...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-019-1880-3

    authors: Fang J,Ma Q,Chu C,Huang B,Li L,Cai P,Batista PJ,Tolentino KEM,Xu J,Li R,Du P,Qu K,Chang HY

    更新日期:2019-12-20 00:00:00

  • Impact of transposable elements on genome structure and evolution in bread wheat.

    abstract:BACKGROUND:Transposable elements (TEs) are major components of large plant genomes and main drivers of genome evolution. The most recent assembly of hexaploid bread wheat recovered the highly repetitive TE space in an almost complete chromosomal context and enabled a detailed view into the dynamics of TEs in the A, B, ...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-018-1479-0

    authors: Wicker T,Gundlach H,Spannagl M,Uauy C,Borrill P,Ramírez-González RH,De Oliveira R,International Wheat Genome Sequencing Consortium.,Mayer KFX,Paux E,Choulet F

    更新日期:2018-08-17 00:00:00

  • A genome-wide screen for modifiers of transgene variegation identifies genes with critical roles in development.

    abstract:BACKGROUND:Some years ago we established an N-ethyl-N-nitrosourea screen for modifiers of transgene variegation in the mouse and a preliminary description of the first six mutant lines, named MommeD1-D6, has been published. We have reported the underlying genes in three cases: MommeD1 is a mutation in SMC hinge domain ...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2008-9-12-r182

    authors: Ashe A,Morgan DK,Whitelaw NC,Bruxner TJ,Vickaryous NK,Cox LL,Butterfield NC,Wicking C,Blewitt ME,Wilkins SJ,Anderson GJ,Cox TC,Whitelaw E

    更新日期:2008-01-01 00:00:00

  • Ancient DNA and the rewriting of human history: be sparing with Occam's razor.

    abstract::Ancient DNA research is revealing a human history far more complex than that inferred from parsimonious models based on modern DNA. Here, we review some of the key events in the peopling of the world in the light of the findings of work on ancient DNA. ...

    journal_title:Genome biology

    pub_type: 历史文章,杂志文章,评审

    doi:10.1186/s13059-015-0866-z

    authors: Haber M,Mezzavilla M,Xue Y,Tyler-Smith C

    更新日期:2016-01-11 00:00:00

  • Archaeal phylogeny based on proteins of the transcription and translation machineries: tackling the Methanopyrus kandleri paradox.

    abstract:BACKGROUND:Phylogenetic analysis of the Archaea has been mainly established by 16S rRNA sequence comparison. With the accumulation of completely sequenced genomes, it is now possible to test alternative approaches by using large sequence datasets. We analyzed archaeal phylogeny using two concatenated datasets consistin...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2004-5-3-r17

    authors: Brochier C,Forterre P,Gribaldo S

    更新日期:2004-01-01 00:00:00

  • Using orthologous and paralogous proteins to identify specificity determining residues.

    abstract:BACKGROUND:Concepts of orthology and paralogy are become increasingly important as whole-genome comparison allows their identification in complete genomes. Functional specificity of proteins is assumed to be conserved among orthologs and is different among paralogs. We used this assumption to identify residues which de...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2002-3-3-preprint0002

    authors: Mirny LA,Gelfand MS

    更新日期:2002-01-01 00:00:00

  • Studying alternative splicing regulatory networks through partial correlation analysis.

    abstract:BACKGROUND:Alternative pre-mRNA splicing is an important gene regulation mechanism for expanding proteomic diversity in higher eukaryotes. Each splicing regulator can potentially influence a large group of alternative exons. Meanwhile, each alternative exon is controlled by multiple splicing regulators. The rapid accum...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2009-10-1-r3

    authors: Chen L,Zheng S

    更新日期:2009-01-01 00:00:00

  • Decontamination of ambient RNA in single-cell RNA-seq with DecontX.

    abstract::Droplet-based microfluidic devices have become widely used to perform single-cell RNA sequencing (scRNA-seq). However, ambient RNA present in the cell suspension can be aberrantly counted along with a cell's native mRNA and result in cross-contamination of transcripts between different cell populations. DecontX is a n...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-020-1950-6

    authors: Yang S,Corbett SE,Koga Y,Wang Z,Johnson WE,Yajima M,Campbell JD

    更新日期:2020-03-05 00:00:00

  • A network perspective on the evolution of metabolism by gene duplication.

    abstract:BACKGROUND:Gene duplication followed by divergence is one of the main sources of metabolic versatility. The patchwork and stepwise models of metabolic evolution help us to understand these processes, but their assumptions are relatively simplistic. We used a network-based approach to determine the influence of metaboli...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2007-8-2-r26

    authors: Díaz-Mejía JJ,Pérez-Rueda E,Segovia L

    更新日期:2007-01-01 00:00:00

  • Old soldiers never die ....

    abstract::An ancestral supersoldier phenotype of Pheidole ants can be recovered when selection for supersoldiers re-emerges, indicating that the developmental potential for caste pathways is retained. ...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb4000

    authors: Boomsma JJ,Nygaard S

    更新日期:2012-02-22 00:00:00

  • Intraepithelial gamma delta T cells exposed by functional genomics.

    abstract::Epithelial tissues house gammadelta T cells, which are important for the mucosal immune system and may be involved in controlling malignancies, infections and inflammation. Whole-genome gene-expression analysis provides a new way to study the signals required for the activation of gammadelta T cells, their mode of act...

    journal_title:Genome biology

    pub_type: 杂志文章,评审

    doi:10.1186/gb-2001-2-11-reviews1031

    authors: Boismenu R,Havran WL

    更新日期:2001-01-01 00:00:00

  • DNA polymerase epsilon is required for heterochromatin maintenance in Arabidopsis.

    abstract:BACKGROUND:Chromatin organizes DNA and regulates its transcriptional activity through epigenetic modifications. Heterochromatic regions of the genome are generally transcriptionally silent, while euchromatin is more prone to transcription. During DNA replication, both genetic information and chromatin modifications mus...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-020-02190-1

    authors: Bourguet P,López-González L,Gómez-Zambrano Á,Pélissier T,Hesketh A,Potok ME,Pouch-Pélissier MN,Perez M,Da Ines O,Latrasse D,White CI,Jacobsen SE,Benhamed M,Mathieu O

    更新日期:2020-11-25 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

  • Broad network-based predictability of Saccharomyces cerevisiae gene loss-of-function phenotypes.

    abstract::We demonstrate that loss-of-function yeast phenotypes are predictable by guilt-by-association in functional gene networks. Testing 1,102 loss-of-function phenotypes from genome-wide assays of yeast reveals predictability of diverse phenotypes, spanning cellular morphology, growth, metabolism, and quantitative cell sha...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2007-8-12-r258

    authors: McGary KL,Lee I,Marcotte EM

    更新日期:2007-01-01 00:00:00

  • SuperTranscripts: a data driven reference for analysis and visualisation of transcriptomes.

    abstract::Numerous methods have been developed to analyse RNA sequencing (RNA-seq) data, but most rely on the availability of a reference genome, making them unsuitable for non-model organisms. Here we present superTranscripts, a substitute for a reference genome, where each gene with multiple transcripts is represented by a si...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-017-1284-1

    authors: Davidson NM,Hawkins ADK,Oshlack A

    更新日期:2017-08-04 00:00:00

  • FitSNPs: highly differentially expressed genes are more likely to have variants associated with disease.

    abstract:BACKGROUND:Candidate single nucleotide polymorphisms (SNPs) from genome-wide association studies (GWASs) were often selected for validation based on their functional annotation, which was inadequate and biased. We propose to use the more than 200,000 microarray studies in the Gene Expression Omnibus to systematically p...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2008-9-12-r170

    authors: Chen R,Morgan AA,Dudley J,Deshpande T,Li L,Kodama K,Chiang AP,Butte AJ

    更新日期:2008-01-01 00:00:00

  • The Smads.

    abstract:SUMMARY:The large transforming growth factor-beta (TGFbeta) superfamily of secreted proteins regulate the growth, development and differentiation of cells in diverse organisms, including nematode worms, flies, mice and humans. Signals are initiated upon binding of TGFbeta superfamily members to cell-surface serine/thre...

    journal_title:Genome biology

    pub_type: 杂志文章,评审

    doi:10.1186/gb-2001-2-8-reviews3010

    authors: Attisano L,Lee-Hoeflich ST

    更新日期:2001-01-01 00:00:00

  • An ontology for cell types.

    abstract::We describe an ontology for cell types that covers the prokaryotic, fungal, animal and plant worlds. It includes over 680 cell types. These cell types are classified under several generic categories and are organized as a directed acyclic graph. The ontology is available in the formats adopted by the Open Biological O...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2005-6-2-r21

    authors: Bard J,Rhee SY,Ashburner M

    更新日期:2005-01-01 00:00:00

  • POSaM: a fast, flexible, open-source, inkjet oligonucleotide synthesizer and microarrayer.

    abstract::DNA arrays are valuable tools in molecular biology laboratories. Their rapid acceptance was aided by the release of plans for a pin-spotting microarrayer by researchers at Stanford. Inkjet microarraying is a flexible, complementary technique that allows the synthesis of arrays of any oligonucleotide sequences de novo....

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2004-5-8-r58

    authors: Lausted C,Dahl T,Warren C,King K,Smith K,Johnson M,Saleem R,Aitchison J,Hood L,Lasky SR

    更新日期:2004-01-01 00:00:00