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1.093 Aktuelle Fachpublikationen von Proceedings of the National Academy of Sciences

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Correction for Ling et al., Extremely high genetic diversity in a single tumor points to prevalence of non-Darwinian cell evolution [Correction]

02.02.2016 | Proceedings of the National Academy of Sciences current issue, 2016

EVOLUTION Correction for “Extremely high genetic diversity in a single tumor points to prevalence of non-Darwinian cell evolution,” by Shaoping Ling, Zheng Hu, Zuyu Yang, Fang Yang, Yawei Li, Pei Lin, Ke Chen, Lili Dong, Lihua Cao, Yong Tao, Lingtong Hao, Qingjian Chen, Qiang Gong, Dafei Wu, ...

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Stigmergic construction and topochemical information shape ant nest architecture [Evolution]

02.02.2016 | Anaïs Khuong; Jacques Gautrais; Andrea Perna; Chaker Sbaï; Maud Combe; Pascale Kuntz; Christian Jost; Guy Theraulaz, Proceedings of the National Academy of Sciences current issue, 2016

The nests of social insects are not only impressive because of their sheer complexity but also because they are built from individuals whose work is not centrally coordinated. A key question is how groups of insects coordinate their building actions. Here, we use a combination of experimental and ...

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Correction for Chen et al., Genome sequence of the Asian Tiger mosquito, Aedes albopictus, reveals insights into its biology, genetics, and evolution [Correction]

26.01.2016 | Proceedings of the National Academy of Sciences current issue, 2016

APPLIED BIOLOGICAL SCIENCES Correction for “Genome sequence of the Asian Tiger mosquito, Aedes albopictus, reveals insights into its biology, genetics, and evolution,” by Xiao-Guang Chen, Xuanting Jiang, Jinbao Gu, Meng Xu, Yang Wu, Yuhua Deng, Chi Zhang, Mariangela Bonizzoni, Wannes Dermauw, ...

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The impact of large terrestrial carnivores on Pleistocene ecosystems [Evolution]

26.01.2016 | Blaire Van Valkenburgh; Matthew W. Hayward; William J. Ripple; Carlo Meloro; V. Louise Roth, Proceedings of the National Academy of Sciences current issue, 2016

Large mammalian terrestrial herbivores, such as elephants, have dramatic effects on the ecosystems they inhabit and at high population densities their environmental impacts can be devastating. Pleistocene terrestrial ecosystems included a much greater diversity of megaherbivores (e.g., mammoths, ...

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Intuition, deliberation, and the evolution of cooperation [Evolution]

26.01.2016 | Adam Bear; David G. Rand, Proceedings of the National Academy of Sciences current issue, 2016

Humans often cooperate with strangers, despite the costs involved. A long tradition of theoretical modeling has sought ultimate evolutionary explanations for this seemingly altruistic behavior. More recently, an entirely separate body of experimental work has begun to investigate cooperation’s ...

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Phylogenetic uncertainty and fossil calibration of Asteraceae chronograms [Biological Sciences]

26.01.2016 | Jose L. Panero, Proceedings of the National Academy of Sciences current issue, 2016

Barreda et al. (1) claim a Cretaceous fossil pollen type is an extinct Asteraceae. Concluding this pollen type is “nested within Dasyphyllum (crown representative),” they calibrate a Dasyphyllum + Barnadesia crown node (Dasyphyllum crown absent) and estimate an 85.9-Ma Asteraceae crown age that ...

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Decanalization of wing development accompanied the evolution of large wings in high-altitude Drosophila [Evolution]

26.01.2016 | Justin B. Lack; Matthew J. Monette; Evan J. Johanning; Quentin D. Sprengelmeyer; John E. Pool, Proceedings of the National Academy of Sciences current issue, 2016

In higher organisms, the phenotypic impacts of potentially harmful or beneficial mutations are often modulated by complex developmental networks. Stabilizing selection may favor the evolution of developmental canalization—that is, robustness despite perturbation—to insulate development against ...

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The precise temporal calibration of dinosaur origins [Evolution]

19.01.2016 | Claudia A. Marsicano; Randall B. Irmis; Adriana C. Mancuso; Roland Mundil; Farid Chemale, Proceedings of the National Academy of Sciences current issue, 2016

Dinosaurs have been major components of ecosystems for over 200 million years. Although different macroevolutionary scenarios exist to explain the Triassic origin and subsequent rise to dominance of dinosaurs and their closest relatives (dinosauromorphs), all lack critical support from a precise ...

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Natural selection against a circadian clock gene mutation in mice [Evolution]

19.01.2016 | Kamiel Spoelstra; Martin Wikelski; Serge Daan; Andrew S. I. Loudon; Michaela Hau, Proceedings of the National Academy of Sciences current issue, 2016

Circadian rhythms with an endogenous period close to or equal to the natural light–dark cycle are considered evolutionarily adaptive (“circadian resonance hypothesis”). Despite remarkable insight into the molecular mechanisms driving circadian cycles, this hypothesis has not been tested under ...

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A rigorous comparison of sexual selection indexes via simulations of diverse mating systems [Evolution]

19.01.2016 | Jonathan M. Henshaw; Andrew T. Kahn; Karoline Fritzsche, Proceedings of the National Academy of Sciences current issue, 2016

Sexual selection is a cornerstone of evolutionary theory, but measuring it has proved surprisingly difficult and controversial. Various proxy measures—e.g., the Bateman gradient and the opportunity for sexual selection—are widely used in empirical studies. However, we do not know how reliably ...

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