Science 24 November 2006: 1286-1289.
Published online 19 October 2006 [DOI: 10.1126/science.1130776] (in Science Express Reports)
GRACE satellite analysis of regional changes in the gravity of the Greenland Ice Sheet implies that the ice sheet lost about 100 gigatons of ice each year from 2003 to 2005.
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Abundance Distributions Imply Elevated Complexity of Post-Paleozoic Marine Ecosystems
Peter J. Wagner, Matthew A. Kosnik, and Scott Lidgard
Science 24 November 2006: 1289-1292.
Analysis of the abundance of marine species since the Cambrian indicate that ecological complexity, characterized by mobile taxa, increased greatly after the Permian extinction.
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Two Dobzhansky-Muller Genes Interact to Cause Hybrid Lethality in Drosophila
Nicholas J. Brideau, Heather A. Flores, Jun Wang, Shamoni Maheshwari, Xu Wang, and Daniel A. Barbash
Science 24 November 2006: 1292-1295.
Sterility in the hybrid offspring of two fruit fly species is caused by a pair of interacting genes, one of which has been positively selected.
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Localization of Iron in Arabidopsis Seed Requires the Vacuolar Membrane Transporter VIT1
Sun A. Kim, Tracy Punshon, Antonio Lanzirotti, Liangtao Li, José M. Alonso, Joseph R. Ecker, Jerry Kaplan, and Mary Lou Guerinot
Science 24 November 2006: 1295-1298.
Published online 2 November 2006 [DOI: 10.1126/science.1132563] (in Science Express Reports)
A transporter sequesters iron essential for plant growth in the vacuoles of embryonic vascular cells and may provide a way to enrich the iron content of grains.
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A NAC Gene Regulating Senescence Improves Grain Protein, Zinc, and Iron Content in Wheat
Cristobal Uauy, Assaf Distelfeld, Tzion Fahima, Ann Blechl, and Jorge Dubcovsky
Science 24 November 2006: 1298-1301.
A gene in wild wheat increases its protein, zinc, and iron content and could be inserted into domesticated wheat to increase its nutritional value.
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Evolutionary History of Salmonella Typhi
Philippe Roumagnac, François-Xavier Weill, Christiane Dolecek, Stephen Baker, Sylvain Brisse, Nguyen Tran Chinh, Thi Anh Hong Le, Camilo J. Acosta, Jeremy Farrar, Gordon Dougan, and Mark Achtman
Science 24 November 2006: 1301-1304.
A large survey of the bacterial strain that causes human typhoid fever suggests that it spread globally during epidemics and persists in asymptomatic carriers.
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Dissecting the Functions of the Mammalian Clock Protein BMAL1 by Tissue-Specific Rescue in Mice
Erin L. McDearmon, Kush N. Patel, Caroline H. Ko, Jacqueline A. Walisser, Andrew C. Schook, Jason L. Chong, Lisa D. Wilsbacher, Eun J. Song, Hee-Kyung Hong, Christopher A. Bradfield, and Joseph S. Takahashi
Science 24 November 2006: 1304-1308.
A transcription factor required in the mouse brain for producing circadian rhythms also acts in muscle to control the animals' activity and body weight.
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A Bacterial Protein Enhances the Release and Efficacy of Liposomal Cancer Drugs
Ian Cheong, Xin Huang, Chetan Bettegowda, Luis A. Diaz, Jr., Kenneth W. Kinzler, Shibin Zhou, and Bert Vogelstein
Science 24 November 2006: 1308-1311.
A lipid-cleaving enzyme from a bacterium that selectively infects tumors can cause the tumor-specific release of chemotherapeutic drugs carried by liposomes.
Abstract »| Full Text »| PDF »| Supporting Online Material »|
Predictive Codes for Forthcoming Perception in the Frontal Cortex
Christopher Summerfield, Tobias Egner, Matthew Greene, Etienne Koechlin, Jennifer Mangels, and Joy Hirsch
Science 24 November 2006: 1311-1314.
Functional brain imaging reveals that, as individuals visually identify objects, neural activity in the frontal cortex influences activity in the visual cortex.
Abstract »| Full Text »| PDF »| Supporting Online Material »|
Technical Comments
Comment on Papers by Chong et al., Nishio et al., and Suri et al. on Diabetes Reversal in NOD Mice
Denise L. Faustman, Simon D. Tran, Shohta Kodama, Beatrijs M. Lodde, Ildiko Szalayova, Sharon Key, Zsuzsanna E. Toth, and Éva Mezey
Science 24 November 2006: 1243.
Abstract »| Full Text »| PDF »|
Response to Comment on Chong et al. on Diabetes Reversal in NOD Mice
Anita S. Chong, Jikun Shen, Jing Tao, Dengping Yin, Andrey Kuznetsov, Manami Hara, and Louis H. Philipson
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