Insights into eukaryogenesis from the fossil record.

Abstract:

:Eukaryogenesis-the process by which the eukaryotic cell emerged-has long puzzled scientists. It has been assumed that the fossil record has little to say about this process, in part because important characters such as the nucleus and mitochondria are rarely preserved, and in part because the prevailing model of early eukaryotes implies that eukaryogenesis occurred before the appearance of the first eukaryotes recognized in the fossil record. Here, I propose a different scenario for early eukaryote evolution than is widely assumed. Rather than crown group eukaryotes originating in the late Paleoproterozoic and remaining ecologically minor components for more than half a billion years in a prokaryote-dominated world, I argue for a late Mesoproterozoic origin of the eukaryotic crown group, implying that eukaryogenesis can be studied using the fossil record. I review the proxy records of four crown group characters: the capacity to form cysts as evidenced by the presence of excystment structures; a complex cytoskeleton as evidenced by spines or pylomes; sterol synthesis as evidenced by steranes; and aerobic respiration-and therefore mitochondria-as evidenced by eukaryotes living in oxic environments, and argue that it might be possible to use these proxy records to infer the order in which these characters evolved. The records indicate that both cyst formation and a complex cytoskeleton appeared by late Paleoproterozoic time, and sterol synthesis appeared in the late Mesoproterozioc or early Neoproterozoic. The origin of aerobic respiration cannot as easily be pinned down, but current evidence permits the possibility that it evolved sometime in the Mesoproterozoic.

journal_name

Interface Focus

journal_title

Interface focus

authors

Porter SM

doi

10.1098/rsfs.2019.0105

subject

Has Abstract

pub_date

2020-08-06 00:00:00

pages

20190105

issue

4

eissn

2042-8898

issn

2042-8901

pii

rsfs20190105

journal_volume

10

pub_type

杂志文章,评审
  • Monster potential meets potential monster: pros and cons of deploying genetically modified microalgae for biofuels production.

    abstract::Biofuels production from microalgae attracts much attention but remains an unproven technology. We explore routes to enhance production through modifications to a range of generic microalgal physiological characteristics. Our analysis shows that biofuels production may be enhanced ca fivefold through genetic modificat...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2012.0037

    authors: Flynn KJ,Mitra A,Greenwell HC,Sui J

    更新日期:2013-02-06 00:00:00

  • Gradient biomaterials and their influences on cell migration.

    abstract::Cell migration participates in a variety of physiological and pathological processes such as embryonic development, cancer metastasis, blood vessel formation and remoulding, tissue regeneration, immune surveillance and inflammation. The cells specifically migrate to destiny sites induced by the gradually varying conce...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2011.0124

    authors: Wu J,Mao Z,Tan H,Han L,Ren T,Gao C

    更新日期:2012-06-06 00:00:00

  • Towards fungal computer.

    abstract::We propose that fungi Basidiomycetes can be used as computing devices: information is represented by spikes of electrical activity, a computation is implemented in a mycelium network and an interface is realized via fruit bodies. In a series of scoping experiments, we demonstrate that electrical activity recorded on f...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2018.0029

    authors: Adamatzky A

    更新日期:2018-12-06 00:00:00

  • A theory of biological relativity: no privileged level of causation.

    abstract::Must higher level biological processes always be derivable from lower level data and mechanisms, as assumed by the idea that an organism is completely defined by its genome? Or are higher level properties necessarily also causes of lower level behaviour, involving actions and interactions both ways? This article uses ...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2011.0067

    authors: Noble D

    更新日期:2012-02-06 00:00:00

  • Hierarchical self-assembly of chiral fibres from achiral particles.

    abstract::We investigate, by molecular dynamics simulation, the behaviour of discotic particles in a solvent of Lennard-Jones spheres. When chromonic disc-sphere interactions are imposed on these systems, three regimes of self-assembly are observed. At moderate temperatures, numerous short threads of discs develop, but these th...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2011.0104

    authors: Prybytak P,Frith WJ,Cleaver DJ

    更新日期:2012-10-06 00:00:00

  • Modelling cavitation erosion using fluid-material interaction simulations.

    abstract::Material deformation and pitting from cavitation bubble collapse is investigated using fluid and material dynamics and their interaction. In the fluid, a novel hybrid approach, which links a boundary element method and a compressible finite difference method, is used to capture non-spherical bubble dynamics and result...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2015.0016

    authors: Chahine GL,Hsiao CT

    更新日期:2015-10-06 00:00:00

  • Survival dynamical systems: individual-level survival analysis from population-level epidemic models.

    abstract::In this paper, we show that solutions to ordinary differential equations describing the large-population limits of Markovian stochastic epidemic models can be interpreted as survival or cumulative hazard functions when analysing data on individuals sampled from the population. We refer to the individual-level survival...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2019.0048

    authors: KhudaBukhsh WR,Choi B,Kenah E,Rempała GA

    更新日期:2020-02-06 00:00:00

  • How linear features alter predator movement and the functional response.

    abstract::In areas of oil and gas exploration, seismic lines have been reported to alter the movement patterns of wolves (Canis lupus). We developed a mechanistic first passage time model, based on an anisotropic elliptic partial differential equation, and used this to explore how wolf movement responses to seismic lines influe...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2011.0086

    authors: McKenzie HW,Merrill EH,Spiteri RJ,Lewis MA

    更新日期:2012-04-06 00:00:00

  • The effect of graphene-poly(methyl methacrylate) fibres on microbial growth.

    abstract::A novel class of ultra-thin fibres, which affect microbial growth, were explored. The microbial properties of poly(methyl methacrylate) fibres containing 2, 4 and 8 wt% of graphene nanoplatelets (GNPs) were studied. GNPs were dispersed in a polymeric solution and processed using pressurized gyration. Electron microsco...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2017.0058

    authors: Matharu RK,Porwal H,Ciric L,Edirisinghe M

    更新日期:2018-06-06 00:00:00

  • Local modulation of chemoattractant concentrations by single cells: dissection using a bulk-surface computational model.

    abstract::Chemoattractant gradients are usually considered in terms of sources and sinks that are independent of the chemotactic cell. However, recent interest has focused on 'self-generated' gradients, in which cell populations create their own local gradients as they move. Here, we consider the interplay between chemoattracta...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2016.0036

    authors: Mackenzie JA,Nolan M,Insall RH

    更新日期:2016-10-06 00:00:00

  • Slip knots and unfastening topologies enhance toughness without reducing strength of silk fibroin fibres.

    abstract::The combination of high strength and high toughness is a desirable feature that structural materials should display. However, while in the past, engineers had to compromise on either strength or toughness depending on the requested application, nowadays, new toughening strategies are available to provide strong materi...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2015.0060

    authors: Berardo A,Pantano MF,Pugno NM

    更新日期:2016-02-06 00:00:00

  • The mathematician's control toolbox for management of type 1 diabetes.

    abstract::Blood glucose levels are controlled by well-known physiological feedback loops: high glucose levels promote insulin release from the pancreas, which in turn stimulates cellular glucose uptake. Low blood glucose levels promote pancreatic glucagon release, stimulating glycogen breakdown to glucose in the liver. In healt...

    journal_title:Interface focus

    pub_type: 杂志文章,评审

    doi:10.1098/rsfs.2014.0042

    authors: Csete M,Doyle J

    更新日期:2014-10-06 00:00:00

  • Antenatal architecture and activity of the human heart.

    abstract::We construct the components for a family of computational models of the electrophysiology of the human foetal heart from 60 days gestational age (DGA) to full term. This requires both cell excitation models that reconstruct the myocyte action potentials, and datasets of cardiac geometry and architecture. Fast low-angl...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2012.0065

    authors: Pervolaraki E,Anderson RA,Benson AP,Hayes-Gill B,Holden AV,Moore BJ,Paley MN,Zhang H

    更新日期:2013-04-06 00:00:00

  • Bacteria and game theory: the rise and fall of cooperation in spatially heterogeneous environments.

    abstract::One of the predictions of game theory is that cooperative behaviours are vulnerable to exploitation by selfish individuals, but this result seemingly contradicts the survival of cooperation observed in nature. In this review, we will introduce game theoretical concepts that lead to this conclusion and show how the spa...

    journal_title:Interface focus

    pub_type: 杂志文章,评审

    doi:10.1098/rsfs.2014.0029

    authors: Lambert G,Vyawahare S,Austin RH

    更新日期:2014-08-06 00:00:00

  • Differential and integral views of genetics in computational systems biology.

    abstract::This article uses an integrative systems biological view of the relationship between genotypes and phenotypes to clarify some conceptual problems in biological debates about causality. The differential (gene-centric) view is incomplete in a sense analogous to using differentiation without integration in mathematics. D...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2010.0444

    authors: Noble D

    更新日期:2011-02-06 00:00:00

  • Bioinspiration: something for everyone.

    abstract::'Bioinspiration'-using phenomena in biology to stimulate research in non-biological science and technology-is a strategy that suggests new areas for research. Beyond its potential to nucleate new ideas, bioinspiration has two other interesting characteristics. It can suggest subjects in research that are relatively si...

    journal_title:Interface focus

    pub_type: 杂志文章,评审

    doi:10.1098/rsfs.2015.0031

    authors: Whitesides GM

    更新日期:2015-08-06 00:00:00

  • Correction to 'Why an extended evolutionary synthesis is necessary'.

    abstract::[This corrects the article DOI: 10.1098/rsfs.2017.0015.]. ...

    journal_title:Interface focus

    pub_type: 杂志文章,已发布勘误

    doi:10.1098/rsfs.2017.0065

    authors: Müller GB

    更新日期:2017-12-06 00:00:00

  • Real-time quasi-static ultrasound elastography.

    abstract::Ultrasound elastography is a technique used for clinical imaging of tissue stiffness with a conventional ultrasound machine. It was first proposed two decades ago, but active research continues in this area to the present day. Numerous clinical applications have been investigated, mostly related to cancer imaging, and...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2011.0011

    authors: Treece G,Lindop J,Chen L,Housden J,Prager R,Gee A

    更新日期:2011-08-06 00:00:00

  • A model of ionic transport and osmotic volume control in cochlear outer hair cells.

    abstract::A computational model of the outer hair cell (OHC) of the mammalian cochlea is presented. It addresses the way in which movement of ions controls the cell shape and regulates pH. The model takes into account the possible chloride-bicarbonate exchange function of prestin, a protein highly expressed in the plasma membra...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2014.0018

    authors: West T,Ashmore J

    更新日期:2014-12-06 00:00:00

  • Evolution of intratumoral phenotypic heterogeneity: the role of trait inheritance.

    abstract::A tumour is a heterogeneous population of cells that competes for limited resources. In the clinic, we typically probe the tumour by biopsy, and then characterize it by the dominant genetic clone. But genotypes are only the first link in the chain of hierarchical events that leads to a specific cell phenotype. The rel...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2013.0016

    authors: Gallaher J,Anderson AR

    更新日期:2013-08-06 00:00:00

  • Rotation invariant visual processing for spatial memory in insects.

    abstract::Visual memory is crucial to navigation in many animals, including insects. Here, we focus on the problem of visual homing, that is, using comparison of the view at a current location with a view stored at the home location to control movement towards home by a novel shortcut. Insects show several visual specialization...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2018.0010

    authors: Stone T,Mangan M,Wystrach A,Webb B

    更新日期:2018-08-06 00:00:00

  • Modulation of the conformational state of mitochondrial complex I as a target for therapeutic intervention.

    abstract::In recent years, there have been significant advances in our understanding of the functions of mitochondrial complex I other than the generation of energy. These include its role in generation of reactive oxygen species, involvement in the hypoxic tissue response and its possible regulation by nitric oxide (NO) metabo...

    journal_title:Interface focus

    pub_type: 杂志文章,评审

    doi:10.1098/rsfs.2016.0104

    authors: Galkin A,Moncada S

    更新日期:2017-04-06 00:00:00

  • Multiscale modelling of the feto-placental vasculature.

    abstract::The placenta provides all the nutrients required for the fetus through pregnancy. It develops dynamically, and, to avoid rejection of the fetus, there is no mixing of fetal and maternal blood; rather, the branched placental villi 'bathe' in blood supplied from the uterine arteries. Within the villi, the feto-placental...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2014.0078

    authors: Clark AR,Lin M,Tawhai M,Saghian R,James JL

    更新日期:2015-04-06 00:00:00

  • An automated computational biomechanics workflow for improving breast cancer diagnosis and treatment.

    abstract::Clinicians face many challenges when diagnosing and treating breast cancer. These challenges include interpreting and co-locating information between different medical imaging modalities that are used to identify tumours and predicting where these tumours move to during different treatment procedures. We have develope...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2019.0034

    authors: Babarenda Gamage TP,Malcolm DTK,Maso Talou G,Mîra A,Doyle A,Nielsen PMF,Nash MP

    更新日期:2019-08-06 00:00:00

  • Exocytosis from pancreatic β-cells: mathematical modelling of the exit of low-molecular-weight granule content.

    abstract::Pancreatic β-cells use Ca(2+)-dependent exocytosis of large dense core vesicles to release insulin. Exocytosis in β-cells has been studied biochemically, biophysically and optically. We have previously developed a biophysical method to monitor release of endogenous intragranular constituents that are co-released with ...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2010.0006

    authors: Galvanovskis J,Braun M,Rorsman P

    更新日期:2011-02-06 00:00:00

  • Bioadhesion in ascidians: a developmental and functional genomics perspective.

    abstract::The development of bioadhesives inspired from marine animals is a promising approach to generate new tissue-compatible medical components. A number of marine species, through their adhesive properties, also represent significant foulers that become increasingly problematic to aquaculture, shipping or local biodiversit...

    journal_title:Interface focus

    pub_type: 杂志文章,评审

    doi:10.1098/rsfs.2014.0061

    authors: Pennati R,Rothbächer U

    更新日期:2015-02-06 00:00:00

  • Coherent backscattering of light by an anisotropic biological network.

    abstract::The scattering strength of a random medium relies on the geometry and spatial distribution of its components as well as on their refractive index. Anisotropy can, therefore, play a major role in the optimization of the scattering efficiency in both biological and synthetic materials. In this study, we show that, by ex...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2018.0050

    authors: Jacucci G,Onelli OD,De Luca A,Bertolotti J,Sapienza R,Vignolini S

    更新日期:2019-02-06 00:00:00

  • Dye-sensitized PS-b-P2VP-templated nickel oxide films for photoelectrochemical applications.

    abstract::Moving from homogeneous water-splitting photocatalytic systems to photoelectrochemical devices requires the preparation and evaluation of novel p-type transparent conductive photoelectrode substrates. We report here on the sensitization of polystyrene-block-poly-(2-vinylpyridine) (PS-b-P2VP) diblock copolymer-template...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2014.0083

    authors: Massin J,Bräutigam M,Kaeffer N,Queyriaux N,Field MJ,Schacher FH,Popp J,Chavarot-Kerlidou M,Dietzek B,Artero V

    更新日期:2015-06-06 00:00:00

  • Mesoporous silica nanoparticles equipped with surface nanovalves for pH-controlled liberation of doxorubicin.

    abstract::Silica carriers equipped with molecular and supramolecular pH-sensitive nanovalves were designed by combination of sol-gel synthesis and selective postsynthetic modification. Mesoporous structure of synthesized materials was characterized by low-temperature nitrogen adsorption-desorption, small-angle X-ray diffraction...

    journal_title:Interface focus

    pub_type: 杂志文章

    doi:10.1098/rsfs.2016.0041

    authors: Roik NV,Belyakova LA

    更新日期:2016-12-06 00:00:00

  • Features of owl wings that promote silent flight.

    abstract::Owls are an order of birds of prey that are known for the development of a silent flight. We review here the morphological adaptations of owls leading to silent flight and discuss also aerodynamic properties of owl wings. We start with early observations (until 2005), and then turn to recent advances. The large wings ...

    journal_title:Interface focus

    pub_type: 杂志文章,评审

    doi:10.1098/rsfs.2016.0078

    authors: Wagner H,Weger M,Klaas M,Schröder W

    更新日期:2017-02-06 00:00:00