keyword
MENU ▼
Read by QxMD icon Read
search

Neogen

keyword
https://www.readbyqxmd.com/read/28280574/the-extreme-insular-adaptation-of-garganornis-ballmanni-meijer-2014-a-giant-anseriformes-of-the-neogene-of-the-mediterranean-basin
#1
Marco Pavia, Hanneke J M Meijer, Maria Adelaide Rossi, Ursula B Göhlich
New skeletal elements of the recently described endemic giant anseriform Garganornis ballmanni Meijer, 2014 are presented, coming from the type-area of the Gargano and from Scontrone, southern and central Italy, respectively. The new remains represent the first bird remains found at Scontrone so far, and another shared element between these two localities, both part of the Apulia-Abruzzi Palaeobioprovince. The presence of a very reduced carpometacarpus confirms its flightlessness, only previously supposed on the basis of the very large size, while the morphologies of tarsometatarsus and posterior phalanges clearly indicate the adaptation of G...
January 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28265503/neogene-paleogeography-provides-context-for-understanding-the-origin-and-spatial-distribution-of-cryptic-diversity-in-a-widespread-balkan-freshwater-amphipod
#2
Michał Grabowski, Tomasz Mamos, Karolina Bącela-Spychalska, Tomasz Rewicz, Remi A Wattier
BACKGROUND: The Balkans are a major worldwide biodiversity and endemism hotspot. Among the freshwater biota, amphipods are known for their high cryptic diversity. However, little is known about the temporal and paleogeographic aspects of their evolutionary history. We used paleogeography as a framework for understanding the onset of diversification in Gammarus roeselii: (1) we hypothesised that, given the high number of isolated waterbodies in the Balkans, the species is characterised by high level of cryptic diversity, even on a local scale; (2) the long geological history of the region might promote pre-Pleistocene divergence between lineages; (3) given that G...
2017: PeerJ
https://www.readbyqxmd.com/read/28215354/new-fungal-cephalothecoid-like-fructifications-from-central-european-neogene-deposits
#3
Grzegorz Worobiec, Frank Harald Neumann, Elżbieta Worobiec, Verena Nitz, Christoph Hartkopf-Fröder
Fragments of cephalothecoid fructifications (peridia) were encountered during palynological investigations of Neogene deposits in Mizerna-Nowa/Poland and Adendorf/Germany. Isolated plates of cephalothecoid ascoma in shape and cellular structure similar to the extant members of the family Cephalothecaceae are described as Cephalothecoidomyces neogenicus fossil gen. et sp. nov. while remnants of fungal sporocarps with cephalothecoid walls with indistinct lines of dehiscence, similar in structure to peridia with cephalothecoid morphology of extant representatives the family Chaetomiaceae (mainly genus Chaetomidium) are assigned to Adendorfia miocenica fossil gen...
March 2017: Fungal Biology
https://www.readbyqxmd.com/read/28202809/mammal-body-size-evolution-in-north-america-and-europe-over-20-myr-similar-trends-generated-by-different-processes
#4
Shan Huang, Jussi T Eronen, Christine M Janis, Juha J Saarinen, Daniele Silvestro, Susanne A Fritz
Because body size interacts with many fundamental biological properties of a species, body size evolution can be an essential component of the generation and maintenance of biodiversity. Here we investigate how body size evolution can be linked to the clade-specific diversification dynamics in different geographical regions. We analyse an extensive body size dataset of Neogene large herbivores (covering approx. 50% of the 970 species in the orders Artiodactyla and Perissodactyla) in Europe and North America in a Bayesian framework...
February 22, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28183978/decoupled-ecomorphological-evolution-and-diversification-in-neogene-quaternary-horses
#5
J L Cantalapiedra, J L Prado, M Hernández Fernández, M T Alberdi
Evolutionary theory has long proposed a connection between trait evolution and diversification rates. In this work, we used phylogenetic methods to evaluate the relationship of lineage-specific speciation rates and the mode of evolution of body size and tooth morphology in the Neogene and Quaternary radiation of horses (7 living and 131 extinct species). We show that diversification pulses are a recurrent feature of equid evolution but that these pulses are not correlated with rapid bursts in phenotypic evolution...
February 10, 2017: Science
https://www.readbyqxmd.com/read/28144910/the-calibrated-phylogeny-of-the-drosophila-fasciola-subgroup-d-repleta-group-wasserman-indicates-neogene-diversification-of-its-internal-branches
#6
F F Franco, E C C Silva, D Y Barrios-Leal, F M Sene, M H Manfrin
The species of the Drosophila fasciola subgroup Wasserman represent the dominant section of the Drosophila repleta group Wasserman in the American rainforests and have a broad geographical distribution in the New World. However, despite of its wide range, the D. fasciola subgroup is one of the most overlooked D. repleta subgroups. Here, we report a molecular phylogenetic analysis focused on the D. fasciola subgroup using two mitochondrial [cytochrome oxidase subunit I (COI), cytochrome oxidase subunit II (COII)] and two nuclear [elongation factor-1alpha F1 (EF-alphaF1) and transformer (tra)] genes...
January 31, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28126515/post-eocene-climate-change-across-continental-australia-and-the-diversification-of-australasian-spiny-trapdoor-spiders-idiopidae-arbanitinae
#7
Michael G Rix, Steven J B Cooper, Karen Meusemann, Seraina Klopfstein, Sophie E Harrison, Mark S Harvey, Andrew D Austin
The formation and spread of the Australian arid zone during the Neogene was a profoundly transformative event in the biogeographic history of Australia, resulting in extinction or range contraction in lineages adapted to mesic habitats, as well as diversification and range expansion in arid-adapted taxa (most of which evolved from mesic ancestors). However, the geographic origins of the arid zone biota are still relatively poorly understood, especially among highly diverse invertebrate lineages, many of which are themselves poorly documented at the species level...
January 23, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28119436/validation-of-the-neogen%C3%A2-fentanyl-elisa-kit-for-blood-and-urine
#8
Nicholas B Tiscione, Kristin Wegner
The Neogen(®) Fentanyl ready-to-use enzyme-linked immunosorbent assay kit was validated following the Scientific Working Group for Forensic Toxicology Standard Practices for Method Validation in Forensic Toxicology Laboratory Guidelines. Two decision points, 0.5 and 1 ng/mL, were successfully validated for whole blood. For urine, two decision points, 1 and 5 ng/mL, were also successfully validated. The validation included the evaluation of sensitivity, precision, specificity, carryover, plate drift, ruggedness/robustness and a case sample evaluation...
January 23, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28118134/validation-of-the-accupoint-advanced-atp-hygiene-monitoring-system-for-sanitation-monitoring-through-detection-of-atp-from-stainless-steel-surfaces
#9
Ryan Viator, R Lucas Gray, Ron Sarver, Brent Steiner, Mark Mozola, Jennifer Rice
The AccuPoint Advanced ATP Hygeine Monitoring System was validated by an AOAC International <em>Performance Tested Method</em><sup>SM</sup> on the detection of ATP from stainless steel surfaces. Neogen Corp.'s system is a lightweight, hand-held diagnostic tool used to validate and verify a hygiene program's effectiveness by detecting organic residues remaining on surfaces and in liquids after cleaning. The system is composed of three primary components: an electronic luminometer, fully self-contained single-use samplers, and software...
November 30, 2016: Journal of AOAC International
https://www.readbyqxmd.com/read/28059714/regeneration-of-fat-cells-from-myofibroblasts-during-wound-healing
#10
Maksim V Plikus, Christian F Guerrero-Juarez, Mayumi Ito, Yun Rose Li, Priya H Dedhia, Ying Zheng, Mengle Shao, Denise L Gay, Raul Ramos, Tsai-Ching Hsi, Ji Won Oh, Xiaojie Wang, Amanda Ramirez, Sara E Konopelski, Arijh Elzein, Anne Wang, Rarinthip June Supapannachart, Hye-Lim Lee, Chae Ho Lim, Arben Nace, Amy Guo, Elsa Treffeisen, Thomas Andl, Ricardo N Ramirez, Rabi Murad, Stefan Offermanns, Daniel Metzger, Pierre Chambon, Alan D Widgerow, Tai-Lan Tuan, Ali Mortazavi, Rana K Gupta, Bruce A Hamilton, Sarah E Millar, Patrick Seale, Warren S Pear, Mitchell A Lazar, George Cotsarelis
Although regeneration through the reprogramming of one cell lineage to another occurs in fish and amphibians, it has not been observed in mammals. We discovered in the mouse that during wound healing, adipocytes regenerate from myofibroblasts, a cell type thought to be differentiated and nonadipogenic. Myofibroblast reprogramming required neogenic hair follicles, which triggered bone morphogenetic protein (BMP) signaling and then activation of adipocyte transcription factors expressed during development. Overexpression of the BMP antagonist Noggin in hair follicles or deletion of the BMP receptor in myofibroblasts prevented adipocyte formation...
February 17, 2017: Science
https://www.readbyqxmd.com/read/28054561/pliocene-oceanic-seaways-and-global-climate
#11
Cyrus Karas, Dirk Nürnberg, André Bahr, Jeroen Groeneveld, Jens O Herrle, Ralf Tiedemann, Peter B deMenocal
Tectonically induced changes in oceanic seaways had profound effects on global and regional climate during the Late Neogene. The constriction of the Central American Seaway reached a critical threshold during the early Pliocene ~4.8-4 million years (Ma) ago. Model simulations indicate the strengthening of the Atlantic Meridional Overturning Circulation (AMOC) with a signature warming response in the Northern Hemisphere and cooling in the Southern Hemisphere. Subsequently, between ~4-3 Ma, the constriction of the Indonesian Seaway impacted regional climate and might have accelerated the Northern Hemisphere Glaciation...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28006793/a-revision-of-the-neogene-conidae-and-conorbidae-gastropoda-of-the-paratethys-sea
#12
Mathias Harzhauser, Bernard Landau
The Miocene Conidae and Conorbidae of the central- and south-eastern European Paratethys Sea are revised. In total, 74 species are described of which 10 are new species and 5 are documented for the first time from Paratethyan localities. Species descriptions and delimitations are partly based on morphometric data. In addition, colour patterns are described for the first time for the majority of species. In respect to the ongoing discussion on the supraspecific treatment of extant Conidae, we strongly focus on generic allocations and provide a key for the genera as understood herein...
December 22, 2016: Zootaxa
https://www.readbyqxmd.com/read/27914887/comparative-performance-of-four-immunological-test-kits-for-the-detection-of-paralytic-shellfish-toxins-in-tasmanian-shellfish
#13
Juan José Dorantes-Aranda, Katrina Campbell, Andrew Bradbury, Christopher T Elliott, D Tim Harwood, Shauna A Murray, Sarah C Ugalde, Katrina Wilson, Megan Burgoyne, Gustaaf M Hallegraeff
Blooms of the toxic dinoflagellate Alexandrium tamarense (Group 1) seriously impacted the Tasmanian shellfish industry during 2012 and 2015, necessitating product recalls and intensive paralytic shellfish toxin (PST) product testing. The performance of four commercial PST test kits, Abraxis™, Europroxima™, Scotia™ and Neogen™, was compared with the official AOAC LC-FLD method for contaminated mussels and oysters. Abraxis and Europroxima kits underestimated PST in 35-100% of samples when using standard protocols but quantification improved when concentrated extracts were further diluted (underestimation ≤18%)...
January 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/27901094/late-oligocene-early-miocene-magnetochronology-of-the-mammalian-faunas-in-the-lanzhou-basin-environmental-changes-in-the-ne-margin-of-the-tibetan-plateau
#14
Peng Zhang, Hong Ao, Mark J Dekkers, Yongxiang Li, Zhisheng An
A large number of terrestrial mammalian fossils were reported in the well-exposed Paleogene and Neogene fluvio-lacustrine strata in Western China. Their accurate ages are crucial to understand the mammalian and environmental evolution associated with the step-wise uplift of the Tibetan Plateau. At present their ages are surprisingly poorly constrained. Here, we present a high-resolution magnetostratigraphic dating of the Late Oligocene-Early Miocene mammal assemblages from a 233-m thick fluvio-lacustrine section in the Lanzhou Basin located at the northeastern margin of the Tibetan Plateau, China...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27896030/historical-reconstruction-of-climatic-and-elevation-preferences-and-the-evolution-of-cloud-forest-adapted-tree-ferns-in-mesoamerica
#15
Victoria Sosa, Juan Francisco Ornelas, Santiago Ramírez-Barahona, Etelvina Gándara
BACKGROUND: Cloud forests, characterized by a persistent, frequent or seasonal low-level cloud cover and fragmented distribution, are one of the most threatened habitats, especially in the Neotropics. Tree ferns are among the most conspicuous elements in these forests, and ferns are restricted to regions in which minimum temperatures rarely drop below freezing and rainfall is high and evenly distributed around the year. Current phylogeographic data suggest that some of the cloud forest-adapted species remained in situ or expanded to the lowlands during glacial cycles and contracted allopatrically during the interglacials...
2016: PeerJ
https://www.readbyqxmd.com/read/27881865/bandicoot-fossils-and-dna-elucidate-lineage-antiquity-amongst-xeric-adapted-australasian-marsupials
#16
Benjamin P Kear, Ken P Aplin, Michael Westerman
Bandicoots (Peramelemorphia) are a unique order of Australasian marsupials whose sparse fossil record has been used as prima facie evidence for climate change coincident faunal turnover. In particular, the hypothesized replacement of ancient rainforest-dwelling extinct lineages by antecedents of xeric-tolerant extant taxa during the late Miocene (~10 Ma) has been advocated as a broader pattern evident amongst other marsupial clades. Problematically, however, this is in persistent conflict with DNA phylogenies...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27853534/young-relicts-and-old-relicts-a-novel-palaeoendemic-vertebrate-from-the-australian-central-uplands
#17
Paul M Oliver, Peter J McDonald
Climatic change, and in particular aridification, has played a dominant role in shaping Southern Hemisphere biotas since the mid-Neogene. In Australia, ancient and geologically stable ranges within the vast arid zone have functioned as refugia for populations of mesic taxa extirpated from surrounding areas, yet the extent to which relicts may be linked to major aridification events before or after the Pliocene has not been examined in detail. Here we use molecular phylogenetic and morphological data to show that isolated populations of saxicoline geckos in the genus Oedura from the Australian Central Uplands, formerly confounded as a single taxon, actually comprise two divergent species with contrasting histories of isolation...
October 2016: Royal Society Open Science
https://www.readbyqxmd.com/read/27812188/the-biogeographic-south-north-divide-of-polygonatum-asparagaceae-tribe-polygonateae-within-eastern-asia-and-its-recent-dispersals-in-the-northern-hemisphere
#18
Jia-Jian Wang, Yong-Ping Yang, Hang Sun, Jun Wen, Tao Deng, Ze-Long Nie, Ying Meng
Eastern Asia (EA) is a key region for the diversification of flowering plants in the Northern Hemisphere, but few studies have focused on the biogeographic history within EA in the context of the other northern continents. Polygonatum is an important medicinal genus widely distributed in the Northern Hemisphere with its highest species richness in EA, and it represents an excellent model for studying the evolution of biogeographic patterns in this region. Divergence time estimation was used to examine the biogeographic history of Polygonatum based on nuclear ITS and four plastid sequences (rbcL, matK, psbA-trnH and trnC-petN) from 30 Polygonatum species and 35 outgroup taxa...
2016: PloS One
https://www.readbyqxmd.com/read/27807871/low-cysteine-alpha-keratins-and-corneous-beta-proteins-are-initially-formed-in-the-regenerating-tail-epidermis-of-lizard
#19
L Alibardi, F Michieli, L Dalla Valle
During tail regeneration in lizards, the stratified regenerating epidermis progressively gives rise to neogenic scales that form a new epidermal generation. Initially, a soft, un-scaled, pliable, and extensible epidermis is formed that is progressively replaced by a resistant but non-extensible scaled epidermis. This suggests that the initial corneous proteins are later replaced with harder corneous proteins. Using PCR and immunocytochemistry, the present study shows an upregulation in the synthesis of low-cysteine type I and II alpha-keratins and of corneous beta-proteins with a medium cysteine content and a low content in glycine (formerly termed beta-keratins) produced at the beginning of epidermal regeneration...
January 2017: Journal of Morphology
https://www.readbyqxmd.com/read/27708037/a-pleistocene-ice-core-record-of-atmospheric-o2-concentrations
#20
D A Stolper, M L Bender, G B Dreyfus, Y Yan, J A Higgins
The history of atmospheric O2 partial pressures (Po2) is inextricably linked to the coevolution of life and Earth's biogeochemical cycles. Reconstructions of past Po2 rely on models and proxies but often markedly disagree. We present a record of Po2 reconstructed using O2/N2 ratios from ancient air trapped in ice. This record indicates that Po2 declined by 7 per mil (0.7%) over the past 800,000 years, requiring that O2 sinks were ~2% larger than sources. This decline is consistent with changes in burial and weathering fluxes of organic carbon and pyrite driven by either Neogene cooling or increasing Pleistocene erosion rates...
September 23, 2016: Science
keyword
keyword
61513
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"