@article{988, abstract = {The current-phase relation (CPR) of a Josephson junction (JJ) determines how the supercurrent evolves with the superconducting phase difference across the junction. Knowledge of the CPR is essential in order to understand the response of a JJ to various external parameters. Despite the rising interest in ultraclean encapsulated graphene JJs, the CPR of such junctions remains unknown. Here, we use a fully gate-tunable graphene superconducting quantum intereference device (SQUID) to determine the CPR of ballistic graphene JJs. Each of the two JJs in the SQUID is made with graphene encapsulated in hexagonal boron nitride. By independently controlling the critical current of the JJs, we can operate the SQUID either in a symmetric or asymmetric configuration. The highly asymmetric SQUID allows us to phase-bias one of the JJs and thereby directly obtain its CPR. The CPR is found to be skewed, deviating significantly from a sinusoidal form. The skewness can be tuned with the gate voltage and oscillates in antiphase with Fabry-Pérot resistance oscillations of the ballistic graphene cavity. We compare our experiments with tight-binding calculations that include realistic graphene-superconductor interfaces and find a good qualitative agreement.}, author = {Nanda, Gaurav and Aguilera Servin, Juan L and Rakyta, Péter and Kormányos, Andor and Kleiner, Reinhold and Koelle, Dieter and Watanabe, Kazuo and Taniguchi, Takashi and Vandersypen, Lieven and Goswami, Srijit}, issn = {1530-6984}, journal = {Nano Letters}, number = {6}, pages = {3396 -- 3401}, publisher = {American Chemical Society}, title = {{Current-phase relation of ballistic graphene Josephson junctions}}, doi = {10.1021/acs.nanolett.7b00097}, volume = {17}, year = {2017}, } @article{676, abstract = {The segregation of different cell types into distinct tissues is a fundamental process in metazoan development. Differences in cell adhesion and cortex tension are commonly thought to drive cell sorting by regulating tissue surface tension (TST). However, the role that differential TST plays in cell segregation within the developing embryo is as yet unclear. Here, we have analyzed the role of differential TST for germ layer progenitor cell segregation during zebrafish gastrulation. Contrary to previous observations that differential TST drives germ layer progenitor cell segregation in vitro, we show that germ layers display indistinguishable TST within the gastrulating embryo, arguing against differential TST driving germ layer progenitor cell segregation in vivo. We further show that the osmolarity of the interstitial fluid (IF) is an important factor that influences germ layer TST in vivo, and that lower osmolarity of the IF compared with standard cell culture medium can explain why germ layers display differential TST in culture but not in vivo. Finally, we show that directed migration of mesendoderm progenitors is required for germ layer progenitor cell segregation and germ layer formation.}, author = {Krens, Gabriel and Veldhuis, Jim and Barone, Vanessa and Capek, Daniel and Maître, Jean-Léon and Brodland, Wayne and Heisenberg, Carl-Philipp J}, issn = {0950-1991}, journal = {Development}, number = {10}, pages = {1798 -- 1806}, publisher = {Company of Biologists}, title = {{Interstitial fluid osmolarity modulates the action of differential tissue surface tension in progenitor cell segregation during gastrulation}}, doi = {10.1242/dev.144964}, volume = {144}, year = {2017}, } @article{661, abstract = {During embryonic development, mechanical forces are essential for cellular rearrangements driving tissue morphogenesis. Here, we show that in the early zebrafish embryo, friction forces are generated at the interface between anterior axial mesoderm (prechordal plate, ppl) progenitors migrating towards the animal pole and neurectoderm progenitors moving in the opposite direction towards the vegetal pole of the embryo. These friction forces lead to global rearrangement of cells within the neurectoderm and determine the position of the neural anlage. Using a combination of experiments and simulations, we show that this process depends on hydrodynamic coupling between neurectoderm and ppl as a result of E-cadherin-mediated adhesion between those tissues. Our data thus establish the emergence of friction forces at the interface between moving tissues as a critical force-generating process shaping the embryo.}, author = {Smutny, Michael and Ákos, Zsuzsa and Grigolon, Silvia and Shamipour, Shayan and Ruprecht, Verena and Capek, Daniel and Behrndt, Martin and Papusheva, Ekaterina and Tada, Masazumi and Hof, Björn and Vicsek, Tamás and Salbreux, Guillaume and Heisenberg, Carl-Philipp J}, issn = {1465-7392}, journal = {Nature Cell Biology}, pages = {306 -- 317}, publisher = {Nature Publishing Group}, title = {{Friction forces position the neural anlage}}, doi = {10.1038/ncb3492}, volume = {19}, year = {2017}, } @article{1154, abstract = {Cellular locomotion is a central hallmark of eukaryotic life. It is governed by cell-extrinsic molecular factors, which can either emerge in the soluble phase or as immobilized, often adhesive ligands. To encode for direction, every cue must be present as a spatial or temporal gradient. Here, we developed a microfluidic chamber that allows measurement of cell migration in combined response to surface immobilized and soluble molecular gradients. As a proof of principle we study the response of dendritic cells to their major guidance cues, chemokines. The majority of data on chemokine gradient sensing is based on in vitro studies employing soluble gradients. Despite evidence suggesting that in vivo chemokines are often immobilized to sugar residues, limited information is available how cells respond to immobilized chemokines. We tracked migration of dendritic cells towards immobilized gradients of the chemokine CCL21 and varying superimposed soluble gradients of CCL19. Differential migratory patterns illustrate the potential of our setup to quantitatively study the competitive response to both types of gradients. Beyond chemokines our approach is broadly applicable to alternative systems of chemo- and haptotaxis such as cells migrating along gradients of adhesion receptor ligands vs. any soluble cue. }, author = {Schwarz, Jan and Bierbaum, Veronika and Merrin, Jack and Frank, Tino and Hauschild, Robert and Bollenbach, Mark Tobias and Tay, Savaş and Sixt, Michael K and Mehling, Matthias}, journal = {Scientific Reports}, publisher = {Nature Publishing Group}, title = {{A microfluidic device for measuring cell migration towards substrate bound and soluble chemokine gradients}}, doi = {10.1038/srep36440}, volume = {6}, year = {2016}, } @inproceedings{12903, author = {Schlögl, Alois and Stadlbauer, Stephan}, booktitle = {AHPC16 - Austrian HPC Meeting 2016}, location = {Grundlsee, Austria}, pages = {37}, publisher = {VSC - Vienna Scientific Cluster}, title = {{High performance computing at IST Austria: Modelling the human hippocampus}}, year = {2016}, } @article{1350, abstract = {The hippocampal CA3 region plays a key role in learning and memory. Recurrent CA3–CA3 synapses are thought to be the subcellular substrate of pattern completion. However, the synaptic mechanisms of this network computation remain enigmatic. To investigate these mechanisms, we combined functional connectivity analysis with network modeling. Simultaneous recording fromup to eight CA3 pyramidal neurons revealed that connectivity was sparse, spatially uniform, and highly enriched in disynaptic motifs (reciprocal, convergence,divergence, and chain motifs). Unitary connections were composed of one or two synaptic contacts, suggesting efficient use of postsynaptic space. Real-size modeling indicated that CA3 networks with sparse connectivity, disynaptic motifs, and single-contact connections robustly generated pattern completion.Thus, macro- and microconnectivity contribute to efficient memory storage and retrieval in hippocampal networks.}, author = {Guzmán, José and Schlögl, Alois and Frotscher, Michael and Jonas, Peter M}, journal = {Science}, number = {6304}, pages = {1117 -- 1123}, publisher = {American Association for the Advancement of Science}, title = {{Synaptic mechanisms of pattern completion in the hippocampal CA3 network}}, doi = {10.1126/science.aaf1836}, volume = {353}, year = {2016}, } @misc{5555, abstract = {This FIJI script calculates the population average of the migration speed as a function of time of all cells from wide field microscopy movies.}, author = {Hauschild, Robert}, keywords = {cell migration, wide field microscopy, FIJI}, publisher = {Institute of Science and Technology Austria}, title = {{Fiji script to determine average speed and direction of migration of cells}}, doi = {10.15479/AT:ISTA:44}, year = {2016}, } @inproceedings{10810, abstract = {The main goal of the SCP-ECG standard is to address ECG data and related metadata structuring, semantics and syntax, with the objective of facilitating interoperability and thus supporting and promoting the exchange of the relevant information for unary and serial ECG diagnosis. Starting with version V3.0, the standard now also provides support for the storage of continuous, long-term ECG recordings and affords a repository for selected ECG sequences and the related metadata to accommodate stress tests, drug trials and protocol-based ECG recordings. The global and per-lead measurements sections have been extended and three new sections have been introduced for storing beat-by-beat and/or spike-by-spike measurements and annotations. The used terminology and the provided measurements and annotations have been harmonized with the ISO/IEEE 11073-10102 Annotated ECG standard. Emphasis has also been put on harmonizing the Universal Statement Codes with the CDISC and the categorized AHA statement codes and similarly the drug and implanted devices codes with the ATC and NASPE/BPEG codes. }, author = {Rubel, Paul and Pani, Danilo and Schlögl, Alois and Fayn, Jocelyne and Badilini, Fabio and Macfarlane, Peter and Varri, Alpo}, booktitle = {2016 Computing in Cardiology Conference}, issn = {2325-887X}, location = {Vancouver, Canada}, pages = {309--312}, publisher = {Computing in Cardiology}, title = {{SCP-ECG V3.0: An enhanced standard communication protocol for computer-assisted electrocardiography}}, doi = {10.22489/cinc.2016.090-500}, volume = {43}, year = {2016}, } @article{1321, abstract = {Most migrating cells extrude their front by the force of actin polymerization. Polymerization requires an initial nucleation step, which is mediated by factors establishing either parallel filaments in the case of filopodia or branched filaments that form the branched lamellipodial network. Branches are considered essential for regular cell motility and are initiated by the Arp2/3 complex, which in turn is activated by nucleation-promoting factors of the WASP and WAVE families. Here we employed rapid amoeboid crawling leukocytes and found that deletion of the WAVE complex eliminated actin branching and thus lamellipodia formation. The cells were left with parallel filaments at the leading edge, which translated, depending on the differentiation status of the cell, into a unipolar pointed cell shape or cells with multiple filopodia. Remarkably, unipolar cells migrated with increased speed and enormous directional persistence, while they were unable to turn towards chemotactic gradients. Cells with multiple filopodia retained chemotactic activity but their migration was progressively impaired with increasing geometrical complexity of the extracellular environment. These findings establish that diversified leading edge protrusions serve as explorative structures while they slow down actual locomotion.}, author = {Leithner, Alexander F and Eichner, Alexander and Müller, Jan and Reversat, Anne and Brown, Markus and Schwarz, Jan and Merrin, Jack and De Gorter, David and Schur, Florian and Bayerl, Jonathan and De Vries, Ingrid and Wieser, Stefan and Hauschild, Robert and Lai, Frank and Moser, Markus and Kerjaschki, Dontscho and Rottner, Klemens and Small, Victor and Stradal, Theresia and Sixt, Michael K}, journal = {Nature Cell Biology}, pages = {1253 -- 1259}, publisher = {Nature Publishing Group}, title = {{Diversified actin protrusions promote environmental exploration but are dispensable for locomotion of leukocytes}}, doi = {10.1038/ncb3426}, volume = {18}, year = {2016}, } @article{1525, abstract = {Based on 16 recommendations, efforts should be made to achieve the following goal: By 2025, all scholarly publication activity in Austria should be Open Access. In other words, the final versions of all scholarly publications resulting from the support of public resources must be freely accessible on the Internet without delay (Gold Open Access). The resources required to meet this obligation shall be provided to the authors, or the cost of the publication venues shall be borne directly by the research organisations.}, author = {Bauer, Bruno and Blechl, Guido and Bock, Christoph and Danowski, Patrick and Ferus, Andreas and Graschopf, Anton and König, Thomas and Mayer, Katja and Reckling, Falk and Rieck, Katharina and Seitz, Peter and Stöger, Herwig and Welzig, Elvira}, journal = {VÖB Mitteilungen}, number = {3}, pages = {580 -- 607}, publisher = {Verein Österreichischer Bibliothekare}, title = {{Arbeitsgruppe „Nationale Strategie“ des Open Access Network Austria OANA}}, doi = {10.5281/zenodo.33178}, volume = {68}, year = {2015}, } @article{1562, abstract = {The plant hormone auxin is a key regulator of plant growth and development. Auxin levels are sensed and interpreted by distinct receptor systems that activate a broad range of cellular responses. The Auxin-Binding Protein1 (ABP1) that has been identified based on its ability to bind auxin with high affinity is a prime candidate for the extracellular receptor responsible for mediating a range of auxin effects, in particular, the fast non-transcriptional ones. Contradictory genetic studies suggested prominent or no importance of ABP1 in many developmental processes. However, how crucial the role of auxin binding to ABP1 is for its functions has not been addressed. Here, we show that the auxin-binding pocket of ABP1 is essential for its gain-of-function cellular and developmental roles. In total, 16 different abp1 mutants were prepared that possessed substitutions in the metal core or in the hydrophobic amino acids of the auxin-binding pocket as well as neutral mutations. Their analysis revealed that an intact auxin-binding pocket is a prerequisite for ABP1 to activate downstream components of the ABP1 signalling pathway, such as Rho of Plants (ROPs) and to mediate the clathrin association with membranes for endocytosis regulation. In planta analyses demonstrated the importance of the auxin binding pocket for all known ABP1-mediated postembryonic developmental processes, including morphology of leaf epidermal cells, root growth and root meristem activity, and vascular tissue differentiation. Taken together, these findings suggest that auxin binding to ABP1 is central to its function, supporting the role of ABP1 as auxin receptor.}, author = {Grones, Peter and Chen, Xu and Simon, Sibu and Kaufmann, Walter and De Rycke, Riet and Nodzyński, Tomasz and Zažímalová, Eva and Friml, Jirí}, journal = {Journal of Experimental Botany}, number = {16}, pages = {5055 -- 5065}, publisher = {Oxford University Press}, title = {{Auxin-binding pocket of ABP1 is crucial for its gain-of-function cellular and developmental roles}}, doi = {10.1093/jxb/erv177}, volume = {66}, year = {2015}, } @article{1678, abstract = {High-throughput live-cell screens are intricate elements of systems biology studies and drug discovery pipelines. Here, we demonstrate an optogenetics-assisted method that avoids the need for chemical activators and reporters, reduces the number of operational steps and increases information content in a cell-based small-molecule screen against human protein kinases, including an orphan receptor tyrosine kinase. This blueprint for all-optical screening can be adapted to many drug targets and cellular processes.}, author = {Inglés Prieto, Álvaro and Gschaider-Reichhart, Eva and Muellner, Markus and Nowak, Matthias and Nijman, Sebastian and Grusch, Michael and Janovjak, Harald L}, journal = {Nature Chemical Biology}, number = {12}, pages = {952 -- 954}, publisher = {Nature Publishing Group}, title = {{Light-assisted small-molecule screening against protein kinases}}, doi = {10.1038/nchembio.1933}, volume = {11}, year = {2015}, } @article{1848, abstract = {The ability to escape apoptosis is a hallmark of cancer-initiating cells and a key factor of resistance to oncolytic therapy. Here, we identify FAM96A as a ubiquitous, evolutionarily conserved apoptosome-activating protein and investigate its potential pro-apoptotic tumor suppressor function in gastrointestinal stromal tumors (GISTs). Interaction between FAM96A and apoptotic peptidase activating factor 1 (APAF1) was identified in yeast two-hybrid screen and further studied by deletion mutants, glutathione-S-transferase pull-down, co-immunoprecipitation and immunofluorescence. Effects of FAM96A overexpression and knock-down on apoptosis sensitivity were examined in cancer cells and zebrafish embryos. Expression of FAM96A in GISTs and histogenetically related cells including interstitial cells of Cajal (ICCs), “fibroblast-like cells” (FLCs) and ICC stem cells (ICC-SCs) was investigated by Northern blotting, reverse transcription—polymerase chain reaction, immunohistochemistry and Western immunoblotting. Tumorigenicity of GIST cells and transformed murine ICC-SCs stably transduced to re-express FAM96A was studied by xeno- and allografting into immunocompromised mice. FAM96A was found to bind APAF1 and to enhance the induction of mitochondrial apoptosis. FAM96A protein or mRNA was dramatically reduced or lost in 106 of 108 GIST samples representing three independent patient cohorts. Whereas ICCs, ICC-SCs and FLCs, the presumed normal counterparts of GIST, were found to robustly express FAM96A protein and mRNA, FAM96A expression was much reduced in tumorigenic ICC-SCs. Re-expression of FAM96A in GIST cells and transformed ICC-SCs increased apoptosis sensitivity and diminished tumorigenicity. Our data suggest FAM96A is a novel pro-apoptotic tumor suppressor that is lost during GIST tumorigenesis.}, author = {Schwamb, Bettina and Pick, Robert and Fernández, Sara and Völp, Kirsten and Heering, Jan and Dötsch, Volker and Bösser, Susanne and Jung, Jennifer and Beinoravičiute Kellner, Rasa and Wesely, Josephine and Zörnig, Inka and Hammerschmidt, Matthias and Nowak, Matthias and Penzel, Roland and Zatloukal, Kurt and Joos, Stefan and Rieker, Ralf and Agaimy, Abbas and Söder, Stephan and Reid Lombardo, Kmarie and Kendrick, Michael and Bardsley, Michael and Hayashi, Yujiro and Asuzu, David and Syed, Sabriya and Ördög, Tamás and Zörnig, Martin}, journal = {International Journal of Cancer}, number = {6}, pages = {1318 -- 1329}, publisher = {Wiley}, title = {{FAM96A is a novel pro-apoptotic tumor suppressor in gastrointestinal stromal tumors}}, doi = {10.1002/ijc.29498}, volume = {137}, year = {2015}, } @article{2230, abstract = {Intracellular electrophysiological recordings provide crucial insights into elementary neuronal signals such as action potentials and synaptic currents. Analyzing and interpreting these signals is essential for a quantitative understanding of neuronal information processing, and requires both fast data visualization and ready access to complex analysis routines. To achieve this goal, we have developed Stimfit, a free software package for cellular neurophysiology with a Python scripting interface and a built-in Python shell. The program supports most standard file formats for cellular neurophysiology and other biomedical signals through the Biosig library. To quantify and interpret the activity of single neurons and communication between neurons, the program includes algorithms to characterize the kinetics of presynaptic action potentials and postsynaptic currents, estimate latencies between pre- and postsynaptic events, and detect spontaneously occurring events. We validate and benchmark these algorithms, give estimation errors, and provide sample use cases, showing that Stimfit represents an efficient, accessible and extensible way to accurately analyze and interpret neuronal signals.}, author = {Guzmán, José and Schlögl, Alois and Schmidt Hieber, Christoph}, issn = {1662-5196}, journal = {Frontiers in Neuroinformatics}, number = {FEB}, publisher = {Frontiers Research Foundation}, title = {{Stimfit: Quantifying electrophysiological data with Python}}, doi = {10.3389/fninf.2014.00016}, volume = {8}, year = {2014}, } @article{1862, abstract = {The prominent and evolutionarily ancient role of the plant hormone auxin is the regulation of cell expansion. Cell expansion requires ordered arrangement of the cytoskeleton but molecular mechanisms underlying its regulation by signalling molecules including auxin are unknown. Here we show in the model plant Arabidopsis thaliana that in elongating cells exogenous application of auxin or redistribution of endogenous auxin induces very rapid microtubule re-orientation from transverse to longitudinal, coherent with the inhibition of cell expansion. This fast auxin effect requires auxin binding protein 1 (ABP1) and involves a contribution of downstream signalling components such as ROP6 GTPase, ROP-interactive protein RIC1 and the microtubule-severing protein katanin. These components are required for rapid auxin-and ABP1-mediated re-orientation of microtubules to regulate cell elongation in roots and dark-grown hypocotyls as well as asymmetric growth during gravitropic responses.}, author = {Chen, Xu and Grandont, Laurie and Li, Hongjiang and Hauschild, Robert and Paque, Sébastien and Abuzeineh, Anas and Rakusova, Hana and Benková, Eva and Perrot Rechenmann, Catherine and Friml, Jirí}, issn = {1476-4687}, journal = {Nature}, number = {729}, pages = {90 -- 93}, publisher = {Nature Publishing Group}, title = {{Inhibition of cell expansion by rapid ABP1-mediated auxin effect on microtubules}}, doi = {10.1038/nature13889}, volume = {516}, year = {2014}, } @article{1890, abstract = {To search for a target in a complex environment is an everyday behavior that ends with finding the target. When we search for two identical targets, however, we must continue the search after finding the first target and memorize its location. We used fixation-related potentials to investigate the neural correlates of different stages of the search, that is, before and after finding the first target. Having found the first target influenced subsequent distractor processing. Compared to distractor fixations before the first target fixation, a negative shift was observed for three subsequent distractor fixations. These results suggest that processing a target in continued search modulates the brain's response, either transiently by reflecting temporary working memory processes or permanently by reflecting working memory retention.}, author = {Körner, Christof and Braunstein, Verena and Stangl, Matthias and Schlögl, Alois and Neuper, Christa and Ischebeck, Anja}, journal = {Psychophysiology}, number = {4}, pages = {385 -- 395}, publisher = {Wiley-Blackwell}, title = {{Sequential effects in continued visual search: Using fixation-related potentials to compare distractor processing before and after target detection}}, doi = {10.1111/psyp.12062}, volume = {51}, year = {2014}, } @article{1892, abstract = {Behavioural variation among conspecifics is typically contingent on individual state or environmental conditions. Sex-specific genetic polymorphisms are enigmatic because they lack conditionality, and genes causing adaptive trait variation in one sex may reduce Darwinian fitness in the other. One way to avoid such genetic antagonism is to control sex-specific traits by inheritance via sex chromosomes. Here, controlled laboratory crossings suggest that in snail-brooding cichlid fish a single locus, two-allele polymorphism located on a sex-linked chromosome of heterogametic males generates an extreme reproductive dimorphism. Both natural and sexual selection are responsible for exceptionally large body size of bourgeois males, creating a niche for a miniature male phenotype to evolve. This extreme intrasexual dimorphism results from selection on opposite size thresholds caused by a single ecological factor, empty snail shells used as breeding substrate. Paternity analyses reveal that in the field parasitic dwarf males sire the majority of offspring in direct sperm competition with large nest owners exceeding their size more than 40 times. Apparently, use of empty snail shells as breeding substrate and single locus sex-linked inheritance of growth are the major ecological and genetic mechanisms responsible for the extreme intrasexual diversity observed in Lamprologus callipterus.}, author = {Ocana, Sabine and Meidl, Patrick and Bonfils, Danielle and Taborsky, Michael}, journal = {Proceedings of the Royal Society of London Series B Biological Sciences}, number = {1794}, publisher = {The Royal Society}, title = {{Y-linked Mendelian inheritance of giant and dwarf male morphs in shell-brooding cichlids}}, doi = {10.1098/rspb.2014.0253}, volume = {281}, year = {2014}, } @article{468, abstract = {Invasive alien parasites and pathogens are a growing threat to biodiversity worldwide, which can contribute to the extinction of endemic species. On the Galápagos Islands, the invasive parasitic fly Philornis downsi poses a major threat to the endemic avifauna. Here, we investigated the influence of this parasite on the breeding success of two Darwin's finch species, the warbler finch (Certhidea olivacea) and the sympatric small tree finch (Camarhynchus parvulus), on Santa Cruz Island in 2010 and 2012. While the population of the small tree finch appeared to be stable, the warbler finch has experienced a dramatic decline in population size on Santa Cruz Island since 1997. We aimed to identify whether warbler finches are particularly vulnerable during different stages of the breeding cycle. Contrary to our prediction, breeding success was lower in the small tree finch than in the warbler finch. In both species P. downsi had a strong negative impact on breeding success and our data suggest that heavy rain events also lowered the fledging success. On the one hand parents might be less efficient in compensating their chicks' energy loss due to parasitism as they might be less efficient in foraging on days of heavy rain. On the other hand, intense rainfalls might lead to increased humidity and more rapid cooling of the nests. In the case of the warbler finch we found that the control of invasive plant species with herbicides had a significant additive negative impact on the breeding success. It is very likely that the availability of insects (i.e. food abundance) is lower in such controlled areas, as herbicide usage led to the removal of the entire understory. Predation seems to be a minor factor in brood loss.}, author = {Cimadom, Arno and Ulloa, Angel and Meidl, Patrick and Zöttl, Markus and Zöttl, Elisabet and Fessl, Birgit and Nemeth, Erwin and Dvorak, Michael and Cunninghame, Francesca and Tebbich, Sabine}, journal = {PLoS One}, number = {9}, publisher = {Public Library of Science}, title = {{Invasive parasites habitat change and heavy rainfall reduce breeding success in Darwin's finches}}, doi = {10.1371/journal.pone.0107518}, volume = {9}, year = {2014}, } @techreport{5422, abstract = {Notes from the Third Plenary for the Research Data Alliance in Dublin, Ireland on March 26 to 28, 2014 with focus on starting an institutional research data repository.}, author = {Porsche, Jana}, publisher = {none}, title = {{Notes from Research Data Alliance Plenary Meeting in Dublin, Ireland}}, year = {2014}, } @article{2022, abstract = {Radial glial progenitors (RGPs) are responsible for producing nearly all neocortical neurons. To gain insight into the patterns of RGP division and neuron production, we quantitatively analyzed excitatory neuron genesis in the mouse neocortex using Mosaic Analysis with Double Markers, which provides single-cell resolution of progenitor division patterns and potential in vivo. We found that RGPs progress through a coherent program in which their proliferative potential diminishes in a predictable manner. Upon entry into the neurogenic phase, individual RGPs produce ∼8–9 neurons distributed in both deep and superficial layers, indicating a unitary output in neuronal production. Removal of OTX1, a transcription factor transiently expressed in RGPs, results in both deep- and superficial-layer neuron loss and a reduction in neuronal unit size. Moreover, ∼1/6 of neurogenic RGPs proceed to produce glia. These results suggest that progenitor behavior and histogenesis in the mammalian neocortex conform to a remarkably orderly and deterministic program.}, author = {Gao, Peng and Postiglione, Maria P and Krieger, Teresa and Hernandez, Luisirene and Wang, Chao and Han, Zhi and Streicher, Carmen and Papusheva, Ekaterina and Insolera, Ryan and Chugh, Kritika and Kodish, Oren and Huang, Kun and Simons, Benjamin and Luo, Liqun and Hippenmeyer, Simon and Shi, Song}, journal = {Cell}, number = {4}, pages = {775 -- 788}, publisher = {Cell Press}, title = {{Deterministic progenitor behavior and unitary production of neurons in the neocortex}}, doi = {10.1016/j.cell.2014.10.027}, volume = {159}, year = {2014}, }