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Table of Contents: May 2013

COVER

The flower of Leavenworthia alabamica (Brassicaceae)

Image Credit: Dr. Jeremiah Busch
Issue Image

Many flowering plants avoid the problem of self-fertilization through systems of self-incompatibility, which allow plants to recognize and reject their own pollen. Self-pollen recognition was first described in the Brassicaceae, and has been identified in all members of this plant family studied to date. It is based on a gene that produces a receptor protein, the S-locus receptor kinase (SRK) gene, and a gene that produces a pollen protein, the S-locus cysteine-rich (SCR) gene. SRK and SCR were lost in the evolutionary lineage leading to Leavenworthia. In Leavenworthia, self-pollen recognition is based on a different receptor kinase gene and on an SCR-like gene, a finding that challenges the notion that the loss of self-pollen recognition is irreversible. See Chantha et al. (e1001560) in this issue.

Synopses

Essay

Perspective

The Case for Open Preprints in Biology

Philippe Desjardins-Proulx, Ethan P. White, Joel J. Adamson, Karthik Ram, Timothée Poisot, Dominique Gravel

Obituary

Primer

Community Page

Reinvigorating the Role of Science in Democracy

Andrew A. Rosenberg, Michael Halpern, Seth Shulman, Celia Wexler, Pallavi Phartiyal

Research Articles

Rare Species Support Vulnerable Functions in High-Diversity Ecosystems

David Mouillot, David R. Bellwood, Christopher Baraloto, Jerome Chave, Rene Galzin, Mireille Harmelin-Vivien, Michel Kulbicki, Sebastien Lavergne, Sandra Lavorel, Nicolas Mouquet, C. E. Timothy Paine, Julien Renaud, Wilfried Thuiller

Secondary Evolution of a Self-Incompatibility Locus in the Brassicaceae Genus Leavenworthia

Sier-Ching Chantha, Adam C. Herman, Adrian E. Platts, Xavier Vekemans, Daniel J. Schoen

The Drosophila Homologue of the Amyloid Precursor Protein Is a Conserved Modulator of Wnt PCP Signaling

Alessia Soldano, Zeynep Okray, Pavlina Janovska, Kateřina Tmejová, Elodie Reynaud, Annelies Claeys, Jiekun Yan, Zeynep Kalender Atak, Bart De Strooper, Jean-Maurice Dura, Vítězslav Bryja, Bassem A. Hassan

Dampening the Signals Transduced through Hedgehog via MicroRNA miR-7 Facilitates Notch-Induced Tumourigenesis

Vanina G. Da Ros, Irene Gutierrez-Perez, Dolors Ferres-Marco, Maria Dominguez

Multiplexing Stimulus Information through Rate and Temporal Codes in Primate Somatosensory Cortex

Michael A. Harvey, Hannes P. Saal, John F. Dammann III, Sliman J. Bensmaia

Parallel Patterns of Increased Virulence in a Recently Emerged Wildlife Pathogen

Dana M. Hawley, Erik E. Osnas, Andrew P. Dobson, Wesley M. Hochachka, David H. Ley, André A. Dhondt

Elimination of Self-Reactive T Cells in the Thymus: A Timeline for Negative Selection

Ivan Lilyanov Dzhagalov, Katherine Grace Chen, Paul Herzmark, Ellen A. Robey

Dual Host-Virus Arms Races Shape an Essential Housekeeping Protein

Ann Demogines, Jonathan Abraham, Hyeryun Choe, Michael Farzan, Sara L. Sawyer

Functional Interrogation of an Odorant Receptor Locus Reveals Multiple Axes of Transcriptional Regulation

Alexander Fleischmann, Ishmail Abdus-Saboor, Atef Sayed, Benjamin Shykind

Three-Dimensional Reconstruction of Bacteria with a Complex Endomembrane System

Rachel Santarella-Mellwig, Sabine Pruggnaller, Norbert Roos, Iain W. Mattaj, Damien P. Devos

Recruitment, Assembly, and Molecular Architecture of the SpoIIIE DNA Pump Revealed by Superresolution Microscopy

Jean-Bernard Fiche, Diego I. Cattoni, Nele Diekmann, Julio Mateos Langerak, Caroline Clerte, Catherine A. Royer, Emmanuel Margeat, Thierry Doan, Marcelo Nöllmann

Control of Translation and miRNA-Dependent Repression by a Novel Poly(A) Binding Protein, hnRNP-Q

Yuri V. Svitkin, Akiko Yanagiya, Alexey E. Karetnikov, Tommy Alain, Marc R. Fabian, Arkady Khoutorsky, Sandra Perreault, Ivan Topisirovic, Nahum Sonenberg