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August 2011

A pseudo-colored scanning electron micrograph of the sex comb of D. melanogaster, ventral view. The sex comb is an example of a recently evolved and rapidly diversifying sex-specific structure. Tanaka et al. (e1001131) describe the genetic mechanism underlying its origin.

Image Credit: Artyom Kopp

Essay

Fertilizing Nature: A Tragedy of Excess in the Commons

Allen G. Good, Perrin H. Beatty

Unsolved Mystery

Community Page

Workshops without Walls: Broadening Access to Science around the World

Betül K. Arslan, Eric S. Boyd, Wendy W. Dolci, K. Estelle Dodson, Marco S. Boldt, Carl B. Pilcher

Research Articles

How Many Species Are There on Earth and in the Ocean?

Camilo Mora, Derek P. Tittensor, Sina Adl, Alastair G. B. Simpson, Boris Worm

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Functional Dissection of the Proton Pumping Modules of Mitochondrial Complex I

Stefan Dröse, Stephanie Krack, Lucie Sokolova, Klaus Zwicker, Hans-Dieter Barth, Nina Morgner, Heinrich Heide, Mirco Steger, Esther Nübel, Volker Zickermann, Stefan Kerscher, Bernhard Brutschy, Michael Radermacher, Ulrich Brandt

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Sex Chromosome-Specific Regulation in the Drosophila Male Germline But Little Evidence for Chromosomal Dosage Compensation or Meiotic Inactivation

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Evolution of Sex-Specific Traits through Changes in HOX-Dependent doublesex Expression

Kohtaro Tanaka, Olga Barmina, Laura E. Sanders, Michelle N. Arbeitman, Artyom Kopp

Three Distinct Roles for Notch in Drosophila R7 Photoreceptor Specification

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Song Yi, Nidhi Sahni, Karla J. Daniels, Kevin L. Lu, Thyagarajan Srikantha, Guanghua Huang, Adam M. Garnaas, David R. Soll

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