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  • Female  (4)
  • Phylogeny  (4)
  • American Association for the Advancement of Science (AAAS)  (7)
  • Wiley
  • 2010-2014  (6)
  • 1995-1999  (1)
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  • 1
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    Archaeorhizomycetes: unearthing an ancient class of ubiquitous soil fungi (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-08-13
    Description: Estimates suggest that only one-tenth of the true fungal diversity has been described. Among numerous fungal lineages known only from environmental DNA sequences, Soil Clone Group 1 is the most ubiquitous. These globally distributed fungi may dominate below-ground fungal communities, but their placement in the fungal tree of life has been uncertain. Here, we report cultures of this group and describe the class, Archaeorhizomycetes, phylogenetically placed within subphylum Taphrinomycotina in the Ascomycota. Archaeorhizomycetes comprises hundreds of cryptically reproducing filamentous species that do not form recognizable mycorrhizal structures and have saprotrophic potential, yet are omnipresent in roots and rhizosphere soil and show ecosystem and host root habitat specificity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rosling, Anna -- Cox, Filipa -- Cruz-Martinez, Karelyn -- Ihrmark, Katarina -- Grelet, Gwen-Aelle -- Lindahl, Bjorn D -- Menkis, Audrius -- James, Timothy Y -- New York, N.Y. -- Science. 2011 Aug 12;333(6044):876-9. doi: 10.1126/science.1206958.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Forest Mycology and Pathology, Uppsala BioCentre, SLU, Box 7026, 750 07 Uppsala, Sweden. anna.rosling@slu.se〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21836015" target="_blank"〉PubMed〈/a〉
    Keywords: *Ascomycota/classification/genetics/growth & development/isolation & purification ; Coniferophyta/microbiology ; *Ecosystem ; Genes, Fungal ; Genes, rRNA ; Meristem/*microbiology ; Molecular Sequence Data ; *Mycorrhizae/classification/genetics ; Phylogeny ; Rhizosphere ; *Soil Microbiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Size variation in Middle Pleistocene humans (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-22
    Description: It has been suggested that European Middle Pleistocene humans, Neandertals, and prehistoric modern humans had a greater sexual dimorphism than modern humans. Analysis of body size variation and cranial capacity variation in the large sample from the Sima de los Huesos site in Spain showed instead that the sexual dimorphism is comparable in Middle Pleistocene and modern populations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arsuaga, J L -- Carretero, J M -- Lorenzo, C -- Gracia, A -- Martinez, I -- Bermudez de Castro, J M -- Carbonell, E -- New York, N.Y. -- Science. 1997 Aug 22;277(5329):1086-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departamento de Paleontologia, Instituto de Geologia Economica, Facultad de Ciencias Geologicas, Universidad Complutense de Madrid, Ciudad Universitaria 28040 Madrid, Spain.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9262474" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Body Constitution ; Female ; *Fossils ; Hominidae/*anatomy & histology ; Humans ; Male ; *Sex Characteristics ; Skull/*anatomy & histology ; Spain
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Erosion of lizard diversity by climate change and altered thermal niches (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-05-15
    Description: It is predicted that climate change will cause species extinctions and distributional shifts in coming decades, but data to validate these predictions are relatively scarce. Here, we compare recent and historical surveys for 48 Mexican lizard species at 200 sites. Since 1975, 12% of local populations have gone extinct. We verified physiological models of extinction risk with observed local extinctions and extended projections worldwide. Since 1975, we estimate that 4% of local populations have gone extinct worldwide, but by 2080 local extinctions are projected to reach 39% worldwide, and species extinctions may reach 20%. Global extinction projections were validated with local extinctions observed from 1975 to 2009 for regional biotas on four other continents, suggesting that lizards have already crossed a threshold for extinctions caused by climate change.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sinervo, Barry -- Mendez-de-la-Cruz, Fausto -- Miles, Donald B -- Heulin, Benoit -- Bastiaans, Elizabeth -- Villagran-Santa Cruz, Maricela -- Lara-Resendiz, Rafael -- Martinez-Mendez, Norberto -- Calderon-Espinosa, Martha Lucia -- Meza-Lazaro, Rubi Nelsi -- Gadsden, Hector -- Avila, Luciano Javier -- Morando, Mariana -- De la Riva, Ignacio J -- Victoriano Sepulveda, Pedro -- Rocha, Carlos Frederico Duarte -- Ibarguengoytia, Nora -- Aguilar Puntriano, Cesar -- Massot, Manuel -- Lepetz, Virginie -- Oksanen, Tuula A -- Chapple, David G -- Bauer, Aaron M -- Branch, William R -- Clobert, Jean -- Sites, Jack W Jr -- New York, N.Y. -- Science. 2010 May 14;328(5980):894-9. doi: 10.1126/science.1184695.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95064, USA. lizardrps@gmail.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20466932" target="_blank"〉PubMed〈/a〉
    Keywords: Acclimatization ; Animals ; *Biodiversity ; Biological Evolution ; Body Temperature ; *Climate Change ; *Ecosystem ; *Extinction, Biological ; Female ; Forecasting ; Geography ; Global Warming ; *Lizards/genetics/physiology ; Male ; Mexico ; Models, Biological ; Phylogeny ; Population Dynamics ; Reproduction ; Seasons ; Selection, Genetic ; Temperature
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Potential for chemolithoautotrophy among ubiquitous bacteria lineages in the dark ocean (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-03
    Description: Recent studies suggest that unidentified prokaryotes fix inorganic carbon at globally significant rates in the immense dark ocean. Using single-cell sorting and whole-genome amplification of prokaryotes from two subtropical gyres, we obtained genomic DNA from 738 cells representing most cosmopolitan lineages. Multiple cells of Deltaproteobacteria cluster SAR324, Gammaproteobacteria clusters ARCTIC96BD-19 and Agg47, and some Oceanospirillales from the lower mesopelagic contained ribulose-1,5-bisphosphate carboxylase-oxygenase and sulfur oxidation genes. These results corroborated community DNA and RNA profiling from diverse geographic regions. The SAR324 genomes also suggested C(1) metabolism and a particle-associated life-style. Microautoradiography and fluorescence in situ hybridization confirmed bicarbonate uptake and particle association of SAR324 cells. Our study suggests potential chemolithoautotrophy in several uncultured Proteobacteria lineages that are ubiquitous in the dark oxygenated ocean and provides new perspective on carbon cycling in the ocean's largest habitat.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Swan, Brandon K -- Martinez-Garcia, Manuel -- Preston, Christina M -- Sczyrba, Alexander -- Woyke, Tanja -- Lamy, Dominique -- Reinthaler, Thomas -- Poulton, Nicole J -- Masland, E Dashiell P -- Gomez, Monica Lluesma -- Sieracki, Michael E -- DeLong, Edward F -- Herndl, Gerhard J -- Stepanauskas, Ramunas -- New York, N.Y. -- Science. 2011 Sep 2;333(6047):1296-300. doi: 10.1126/science.1203690.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Bigelow Laboratory for Ocean Sciences, 180 McKown Point Road, Post Office Box 475, West Boothbay Harbor, ME 04575, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21885783" target="_blank"〉PubMed〈/a〉
    Keywords: ATP-Binding Cassette Transporters/genetics/metabolism ; Carbon Cycle ; Carbon Dioxide/metabolism ; *Chemoautotrophic Growth ; Darkness ; Deltaproteobacteria/classification/genetics/growth & development/*metabolism ; Gammaproteobacteria/classification/genetics/growth & development/*metabolism ; Genes, Bacterial ; Genome, Bacterial ; Metagenome ; Molecular Sequence Data ; Oceans and Seas ; Oxidation-Reduction ; Phylogeny ; Ribulose-Bisphosphate Carboxylase/genetics ; Seawater/*microbiology ; Sulfur/metabolism ; Sulfur Compounds/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    A basal dinosaur from the dawn of the dinosaur era in southwestern Pangaea (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-15
    Description: Upper Triassic rocks in northwestern Argentina preserve the most complete record of dinosaurs before their rise to dominance in the Early Jurassic. Here, we describe a previously unidentified basal theropod, reassess its contemporary Eoraptor as a basal sauropodomorph, divide the faunal record of the Ischigualasto Formation with biozones, and bracket the formation with (40)Ar/(39)Ar ages. Some 230 million years ago in the Late Triassic (mid Carnian), the earliest dinosaurs were the dominant terrestrial carnivores and small herbivores in southwestern Pangaea. The extinction of nondinosaurian herbivores is sequential and is not linked to an increase in dinosaurian diversity, which weakens the predominant scenario for dinosaurian ascendancy as opportunistic replacement.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Martinez, Ricardo N -- Sereno, Paul C -- Alcober, Oscar A -- Colombi, Carina E -- Renne, Paul R -- Montanez, Isabel P -- Currie, Brian S -- New York, N.Y. -- Science. 2011 Jan 14;331(6014):206-10. doi: 10.1126/science.1198467.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Instituto y Museo de Ciencias Naturales, Universidad Nacional de San Juan, San Juan 5400, Argentina.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21233386" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Argentina ; Biological Evolution ; Bone and Bones/anatomy & histology ; Dinosaurs/*anatomy & histology/*classification ; Extinction, Biological ; Femur/anatomy & histology ; *Fossils ; Phylogeny ; Skull/anatomy & histology ; Spine/anatomy & histology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Mutational inactivation of STAG2 causes aneuploidy in human cancer (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-08-20
    Description: Most cancer cells are characterized by aneuploidy, an abnormal number of chromosomes. We have identified a clue to the mechanistic origins of aneuploidy through integrative genomic analyses of human tumors. A diverse range of tumor types were found to harbor deletions or inactivating mutations of STAG2, a gene encoding a subunit of the cohesin complex, which regulates the separation of sister chromatids during cell division. Because STAG2 is on the X chromosome, its inactivation requires only a single mutational event. Studying a near-diploid human cell line with a stable karyotype, we found that targeted inactivation of STAG2 led to chromatid cohesion defects and aneuploidy, whereas in two aneuploid human glioblastoma cell lines, targeted correction of the endogenous mutant alleles of STAG2 led to enhanced chromosomal stability. Thus, genetic disruption of cohesin is a cause of aneuploidy in human cancer.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3374335/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3374335/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Solomon, David A -- Kim, Taeyeon -- Diaz-Martinez, Laura A -- Fair, Joshlean -- Elkahloun, Abdel G -- Harris, Brent T -- Toretsky, Jeffrey A -- Rosenberg, Steven A -- Shukla, Neerav -- Ladanyi, Marc -- Samuels, Yardena -- James, C David -- Yu, Hongtao -- Kim, Jung-Sik -- Waldman, Todd -- CA097257/CA/NCI NIH HHS/ -- R01 CA133662/CA/NCI NIH HHS/ -- R01 CA138212/CA/NCI NIH HHS/ -- R01 CA169345/CA/NCI NIH HHS/ -- R01CA115699/CA/NCI NIH HHS/ -- R21CA143282/CA/NCI NIH HHS/ -- Z01 HG200337-01/Intramural NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Aug 19;333(6045):1039-43. doi: 10.1126/science.1203619.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University School of Medicine, Washington, DC 20057, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21852505" target="_blank"〉PubMed〈/a〉
    Keywords: *Aneuploidy ; Antigens, Nuclear/*genetics/*physiology ; Cell Cycle ; Cell Line ; Cell Line, Tumor ; Chromatids/physiology ; *Chromosomal Instability ; Chromosomes, Human, X/genetics ; Female ; Gene Deletion ; Gene Expression Profiling ; Gene Expression Regulation, Neoplastic ; Gene Silencing ; Gene Targeting ; Glioblastoma/*genetics ; Humans ; Karyotyping ; Male ; Melanoma/genetics ; Mutation ; Neoplasms/*genetics ; Polymorphism, Single Nucleotide ; Sarcoma, Ewing/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Hippocampal neurogenesis regulates forgetting during adulthood and infancy (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-05-09
    Description: Throughout life, new neurons are continuously added to the dentate gyrus. As this continuous addition remodels hippocampal circuits, computational models predict that neurogenesis leads to degradation or forgetting of established memories. Consistent with this, increasing neurogenesis after the formation of a memory was sufficient to induce forgetting in adult mice. By contrast, during infancy, when hippocampal neurogenesis levels are high and freshly generated memories tend to be rapidly forgotten (infantile amnesia), decreasing neurogenesis after memory formation mitigated forgetting. In precocial species, including guinea pigs and degus, most granule cells are generated prenatally. Consistent with reduced levels of postnatal hippocampal neurogenesis, infant guinea pigs and degus did not exhibit forgetting. However, increasing neurogenesis after memory formation induced infantile amnesia in these species.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Akers, Katherine G -- Martinez-Canabal, Alonso -- Restivo, Leonardo -- Yiu, Adelaide P -- De Cristofaro, Antonietta -- Hsiang, Hwa-Lin Liz -- Wheeler, Anne L -- Guskjolen, Axel -- Niibori, Yosuke -- Shoji, Hirotaka -- Ohira, Koji -- Richards, Blake A -- Miyakawa, Tsuyoshi -- Josselyn, Sheena A -- Frankland, Paul W -- MOP74650/Canadian Institutes of Health Research/Canada -- MOP86762/Canadian Institutes of Health Research/Canada -- New York, N.Y. -- Science. 2014 May 9;344(6184):598-602. doi: 10.1126/science.1248903.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Neurosciences and Mental Health, The Hospital for Sick Children, Toronto, M5G 1X8, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24812394" target="_blank"〉PubMed〈/a〉
    Keywords: Amnesia/*pathology/*physiopathology ; Animals ; Dentate Gyrus/cytology ; Female ; Guinea Pigs ; Hippocampus/*cytology ; Male ; *Memory ; Mice ; Mice, Inbred C57BL ; *Neurogenesis ; Neurons/cytology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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