Table of Contents: February 2009


The oral jaws of Pseudotropheus elongatus.

Image Credit: Photograph by Ryan F. Bloomquist (Georgia Institute of Technology).
Issue Image

The jaws of vertebrates, their origins, and their associated dentitions have long been a topic of interest among both paleontologists and evolutionary developmental biologists. The modern diversity of Lake Malawi cichlids has been used here to offer a new perspective on the relationships between teeth on two sets of functional jaws—oral and pharyngeal—and the origins of the vertebrate dentition in the throat of jawless fishes some 500 million years ago (see Fraser et al., e1000031).


Unsolved Mystery



Research Articles

Cryptic Variation in the Human Mutation Rate

Alan Hodgkinson, Emmanuel Ladoukakis, Adam Eyre-Walker

An Ancient Gene Network Is Co-opted for Teeth on Old and New Jaws

Gareth J Fraser, C. Darrin Hulsey, Ryan F Bloomquist, Kristine Uyesugi, Nancy R Manley, J. Todd Streelman

Gene Regulatory Network Interactions in Sea Urchin Endomesoderm Induction

Aditya J Sethi, Robert C Angerer, Lynne M Angerer

The Interscutularis Muscle Connectome

Ju Lu, Juan Carlos Tapia, Olivia L White, Jeff W Lichtman

Neto1 Is a Novel CUB-Domain NMDA Receptor–Interacting Protein Required for Synaptic Plasticity and Learning

David Ng, Graham M Pitcher, Rachel K Szilard, Andréa Sertié, Marijana Kanisek, Steven J Clapcote, Tatiana Lipina, Lorraine V Kalia, Daisy Joo, Colin McKerlie, Miguel Cortez, John C Roder, Michael W Salter, Roderick R McInnes

The Atonal Proneural Transcription Factor Links Differentiation and Tumor Formation in Drosophila

Wouter Bossuyt, Natalie De Geest, Stein Aerts, Iris Leenaerts, Peter Marynen, Bassem A Hassan

Atonal homolog 1 Is a Tumor Suppressor Gene

Wouter Bossuyt, Avedis Kazanjian, Natalie De Geest, Sofie Van Kelst, Gert De Hertogh, Karel Geboes, Greg P Boivin, Judith Luciani, Francois Fuks, Marinee Chuah, Thierry VandenDriessche, Peter Marynen, Jan Cools, Noah F Shroyer, Bassem A Hassan

Genome-Wide Control of the Distribution of Meiotic Recombination

Corinne Grey, Frédéric Baudat, Bernard de Massy

Trans-Regulation of Mouse Meiotic Recombination Hotspots by Rcr1

Emil D Parvanov, Siemon H. S Ng, Petko M Petkov, Kenneth Paigen

Transcriptional Infidelity Promotes Heritable Phenotypic Change in a Bistable Gene Network

Alasdair J. E Gordon, Jennifer A Halliday, Matthew D Blankschien, Philip A Burns, Fumio Yatagai, Christophe Herman

Active-Site Inhibitors of mTOR Target Rapamycin-Resistant Outputs of mTORC1 and mTORC2

Morris E Feldman, Beth Apsel, Aino Uotila, Robbie Loewith, Zachary A Knight, Davide Ruggero, Kevan M Shokat

The Structural Basis of Gas-Responsive Transcription by the Human Nuclear Hormone Receptor REV-ERBβ

Keith I Pardee, Xiaohui Xu, Jeff Reinking, Anja Schuetz, Aiping Dong, Suya Liu, Rongguang Zhang, Jens Tiefenbach, Gilles Lajoie, Alexander N Plotnikov, Alexey Botchkarev, Henry M Krause, Aled Edwards

Structural Polymorphism of 441-Residue Tau at Single Residue Resolution

Marco D Mukrasch, Stefan Bibow, Jegannath Korukottu, Sadasivam Jeganathan, Jacek Biernat, Christian Griesinger, Eckhard Mandelkow, Markus Zweckstetter