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Table of Contents

May 2010

Cover

Cell size patterning in Arabidopsis flowers.
Issue Image

A confocal projection of the cluster of flowers surrounding the growing tip of Arabidopsis shows the formation of cells with a large range of sizes on the sepals of the developing flowers. The variable decisions of cells on the outer surface of the sepals, concerning division time and when to stop dividing, create this characteristic pattern (see Roeder et al., e1000367). Cell nuclei and plasma membranes are shown in green; chloroplasts are in red for contrast. The pattern develops progressively from the youngest flowers near the center to the older flowers on the periphery.

Image Credit: Adrienne Roeder (California Institute of Technology)

Synopses

Right Time, Right Place: The Four-Dimensional Pattern of Fly Neuron Development

Richard Robinson

PLOS Biology: published May 11, 2010 | https://doi.org/10.1371/journal.pbio.1000369

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Sex on the Fly

Kira Heller

PLOS Biology: published May 4, 2010 | https://doi.org/10.1371/journal.pbio.1000364

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Dark Matter Transcripts: Sound and Fury, Signifying Nothing?

Richard Robinson

PLOS Biology: published May 18, 2010 | https://doi.org/10.1371/journal.pbio.1000370

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Essay

Ontologies in Quantitative Biology: A Basis for Comparison, Integration, and Discovery

Lars J. Jensen, Peer Bork

PLOS Biology: published May 25, 2010 | https://doi.org/10.1371/journal.pbio.1000374

Unsolved Mystery

Extreme Endurance Migration: What Is the Limit to Non-Stop Flight?

Anders Hedenström

PLOS Biology: published May 4, 2010 | https://doi.org/10.1371/journal.pbio.1000362

Perspective

Institutional Open Access Funds: Now Is the Time

Charles D. Eckman, Beth T. Weil

PLOS Biology: published May 25, 2010 | https://doi.org/10.1371/journal.pbio.1000375

Primers

Spatial Dynamics and Ecosystem Functioning

Oswald J. Schmitz

PLOS Biology: published May 25, 2010 | https://doi.org/10.1371/journal.pbio.1000378

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Cell Lineage Determination in State Space: A Systems View Brings Flexibility to Dogmatic Canonical Rules

Sui Huang

PLOS Biology: published May 25, 2010 | https://doi.org/10.1371/journal.pbio.1000380

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Research Articles

Spatial Pattern Enhances Ecosystem Functioning in an African Savanna

Robert M. Pringle, Daniel F. Doak, Alison K. Brody, Rudy Jocqué, Todd M. Palmer

PLOS Biology: published May 25, 2010 | https://doi.org/10.1371/journal.pbio.1000377

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A Neuromedin U Receptor Acts with the Sensory System to Modulate Food Type-Dependent Effects on C. elegans Lifespan

Wolfgang Maier, Bakhtiyor Adilov, Martin Regenass, Joy Alcedo

PLOS Biology: published May 25, 2010 | https://doi.org/10.1371/journal.pbio.1000376

Insulin Signaling and Dietary Restriction Differentially Influence the Decline of Learning and Memory with Age

Amanda L. Kauffman, Jasmine M. Ashraf, M. Ryan Corces-Zimmerman, Jessica N. Landis, Coleen T. Murphy

PLOS Biology: published May 18, 2010 | https://doi.org/10.1371/journal.pbio.1000372

Directing Astroglia from the Cerebral Cortex into Subtype Specific Functional Neurons

Christophe Heinrich, Robert Blum, Sergio Gascón, Giacomo Masserdotti, Pratibha Tripathi, Rodrigo Sánchez, Steffen Tiedt, Timm Schroeder, Magdalena Götz, Benedikt Berninger

PLOS Biology: published May 18, 2010 | https://doi.org/10.1371/journal.pbio.1000373

Segment-Specific Neuronal Subtype Specification by the Integration of Anteroposterior and Temporal Cues

Daniel Karlsson, Magnus Baumgardt, Stefan Thor

PLOS Biology: published May 11, 2010 | https://doi.org/10.1371/journal.pbio.1000368

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Variability in the Control of Cell Division Underlies Sepal Epidermal Patterning in Arabidopsis thaliana

Adrienne H. K. Roeder, Vijay Chickarmane, Alexandre Cunha, Boguslaw Obara, B. S. Manjunath, Elliot M. Meyerowitz

PLOS Biology: published May 11, 2010 | https://doi.org/10.1371/journal.pbio.1000367

Functional Heterogeneity of Embryonic Stem Cells Revealed through Translational Amplification of an Early Endodermal Transcript

Maurice A. Canham, Alexei A. Sharov, Minoru S. H. Ko, Joshua M. Brickman

PLOS Biology: published May 25, 2010 | https://doi.org/10.1371/journal.pbio.1000379

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Tec1 Mediates the Pheromone Response of the White Phenotype of Candida albicans: Insights into the Evolution of New Signal Transduction Pathways

Nidhi Sahni, Song Yi, Karla J. Daniels, Guanghua Huang, Thyagarajan Srikantha, David R. Soll

PLOS Biology: published May 4, 2010 | https://doi.org/10.1371/journal.pbio.1000363

Sex and the Single Cell. II. There Is a Time and Place for Sex

Carmen C. Robinett, Alexander G. Vaughan, Jon-Michael Knapp, Bruce S. Baker

PLOS Biology: published May 4, 2010 | https://doi.org/10.1371/journal.pbio.1000365

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Most “Dark Matter” Transcripts Are Associated With Known Genes

Harm van Bakel, Corey Nislow, Benjamin J. Blencowe, Timothy R. Hughes

PLOS Biology: published May 18, 2010 | https://doi.org/10.1371/journal.pbio.1000371

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A Large Fraction of Extragenic RNA Pol II Transcription Sites Overlap Enhancers

Francesca De Santa, Iros Barozzi, Flore Mietton, Serena Ghisletti, Sara Polletti, Betsabeh Khoramian Tusi, Heiko Muller, Jiannis Ragoussis, Chia-Lin Wei, Gioacchino Natoli

PLOS Biology: published May 11, 2010 | https://doi.org/10.1371/journal.pbio.1000384

Book Review%2FScience in the Media

Evolution Is a Quantitative Science

John F. Y. Brookfield

PLOS Biology: published May 25, 2010 | https://doi.org/10.1371/journal.pbio.1000381