ALBERT

Description: The early development of teleost paired fins is strikingly similar to that of tetrapod limb buds and is controlled by similar mechanisms. One early morphological divergence between pectoral fins and limbs is in the fate of the apical ectodermal ridge (AER), the distal epidermis that rims the bud. Whereas the AER of tetrapods regresses after specification of the skeletal progenitors, the AER of teleost fishes forms a fold that elongates. Formation of the fin fold is accompanied by the synthesis of two rows of rigid, unmineralized fibrils called actinotrichia, which keep the fold straight and guide the migration of mesenchymal cells within the fold. The actinotrichia are made of elastoidin, the components of which, apart from collagen, are unknown. Here we show that two zebrafish proteins, which we name actinodin 1 and 2 (And1 and And2), are essential structural components of elastoidin. The presence of actinodin sequences in several teleost fishes and in the elephant shark (Callorhinchus milii, which occupies a basal phylogenetic position), but not in tetrapods, suggests that these genes have been lost during tetrapod species evolution. Double gene knockdown of and1 and and2 in zebrafish embryos results in the absence of actinotrichia and impaired fin folds. Gene expression profiles in embryos lacking and1 and and2 function are consistent with pectoral fin truncation and may offer a potential explanation for the polydactyly observed in early tetrapod fossils. We propose that the loss of both actinodins and actinotrichia during evolution may have led to the loss of lepidotrichia and may have contributed to the fin-to-limb transition.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Jing -- Wagh, Purva -- Guay, Danielle -- Sanchez-Pulido, Luis -- Padhi, Bhaja K -- Korzh, Vladimir -- Andrade-Navarro, Miguel A -- Akimenko, Marie-Andree -- MC_U137761446/Medical Research Council/United Kingdom -- Canadian Institutes of Health Research/Canada -- England -- Nature. 2010 Jul 8;466(7303):234-7. doi: 10.1038/nature09137. Epub 2010 Jun 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CAREG, Department of Biology, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20574421" target="_blank"〉PubMed〈/a〉

Description: The Amazonian rainforest is arguably the most species-rich terrestrial ecosystem in the world, yet the timing of the origin and evolutionary causes of this diversity are a matter of debate. We review the geologic and phylogenetic evidence from Amazonia and compare it with uplift records from the Andes. This uplift and its effect on regional climate fundamentally changed the Amazonian landscape by reconfiguring drainage patterns and creating a vast influx of sediments into the basin. On this "Andean" substrate, a region-wide edaphic mosaic developed that became extremely rich in species, particularly in Western Amazonia. We show that Andean uplift was crucial for the evolution of Amazonian landscapes and ecosystems, and that current biodiversity patterns are rooted deep in the pre-Quaternary.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoorn, C -- Wesselingh, F P -- ter Steege, H -- Bermudez, M A -- Mora, A -- Sevink, J -- Sanmartin, I -- Sanchez-Meseguer, A -- Anderson, C L -- Figueiredo, J P -- Jaramillo, C -- Riff, D -- Negri, F R -- Hooghiemstra, H -- Lundberg, J -- Stadler, T -- Sarkinen, T -- Antonelli, A -- New York, N.Y. -- Science. 2010 Nov 12;330(6006):927-31. doi: 10.1126/science.1194585.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Paleoecology and Landscape Ecology, Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Science Park 904, 1098 XH Amsterdam, Netherlands. carina.hoorn@milne.cc〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21071659" target="_blank"〉PubMed〈/a〉

Description: The transition from jawless to jawed vertebrates (gnathostomes) resulted in the reconfiguration of the muscles and skeleton of the head, including the creation of a separate shoulder girdle with distinct neck muscles. We describe here the only known examples of preserved musculature from placoderms (extinct armored fishes), the phylogenetically most basal jawed vertebrates. Placoderms possess a regionalized muscular anatomy that differs radically from the musculature of extant sharks, which is often viewed as primitive for gnathostomes. The placoderm data suggest that neck musculature evolved together with a dermal joint between skull and shoulder girdle, not as part of a broadly flexible neck as in sharks, and that transverse abdominal muscles are an innovation of gnathostomes rather than of tetrapods.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Trinajstic, Kate -- Sanchez, Sophie -- Dupret, Vincent -- Tafforeau, Paul -- Long, John -- Young, Gavin -- Senden, Tim -- Boisvert, Catherine -- Power, Nicola -- Ahlberg, Per Erik -- New York, N.Y. -- Science. 2013 Jul 12;341(6142):160-4. doi: 10.1126/science.1237275. Epub 2013 Jun 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Western Australian Organic and Isotope Geochemistry Centre, Department of Chemistry, Curtin University, Perth, Western Australia 6102, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23765280" target="_blank"〉PubMed〈/a〉

Description: Extant vertebrates form two clades, the jawless Cyclostomata (lampreys and hagfishes) and the jawed Gnathostomata (all other vertebrates), with contrasting facial architectures. These arise during development from just a few key differences in the growth patterns of the cranial primordia: notably, the nasal sacs and hypophysis originate from a single placode in cyclostomes but from separate placodes in gnathostomes, and infraoptic ectomesenchyme migrates forward either side of the single placode in cyclostomes but between the placodes in gnathostomes. Fossil stem gnathostomes preserve cranial anatomies rich in landmarks that provide proxies for developmental processes and allow the transition from jawless to jawed vertebrates to be broken down into evolutionary steps. Here we use propagation phase contrast synchrotron microtomography to image the cranial anatomy of the primitive placoderm (jawed stem gnathostome) Romundina, and show that it combines jawed vertebrate architecture with cranial and cerebral proportions resembling those of cyclostomes and the galeaspid (jawless stem gnathostome) Shuyu. This combination seems to be primitive for jawed vertebrates, and suggests a decoupling between ectomesenchymal growth trajectory, ectomesenchymal proliferation, and cerebral shape change during the origin of gnathostomes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dupret, Vincent -- Sanchez, Sophie -- Goujet, Daniel -- Tafforeau, Paul -- Ahlberg, Per E -- England -- Nature. 2014 Mar 27;507(7493):500-3. doi: 10.1038/nature12980. Epub 2014 Feb 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Uppsala University, Department of Organismal Biology, Subdepartment of Evolution and Development, Norbyvagen 18A, SE-752 36, Uppsala, Sweden. ; 1] Uppsala University, Department of Organismal Biology, Subdepartment of Evolution and Development, Norbyvagen 18A, SE-752 36, Uppsala, Sweden [2] European Synchrotron Radiation Facility, 6 rue Jules Horowitz, 38043 Grenoble Cedex, France. ; Museum national d'Histoire naturelle, UMR 7207 CR2P CNRS/MNHN/UPMC, 8 rue Buffon, CP 38,75231 Paris Cedex 05, France. ; European Synchrotron Radiation Facility, 6 rue Jules Horowitz, 38043 Grenoble Cedex, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24522530" target="_blank"〉PubMed〈/a〉

Description: Our knowledge of species and functional composition of the human gut microbiome is rapidly increasing, but it is still based on very few cohorts and little is known about variation across the world. By combining 22 newly sequenced faecal metagenomes of individuals from four countries with previously published data sets, here we identify three robust clusters (referred to as enterotypes hereafter) that are not nation or continent specific. We also confirmed the enterotypes in two published, larger cohorts, indicating that intestinal microbiota variation is generally stratified, not continuous. This indicates further the existence of a limited number of well-balanced host-microbial symbiotic states that might respond differently to diet and drug intake. The enterotypes are mostly driven by species composition, but abundant molecular functions are not necessarily provided by abundant species, highlighting the importance of a functional analysis to understand microbial communities. Although individual host properties such as body mass index, age, or gender cannot explain the observed enterotypes, data-driven marker genes or functional modules can be identified for each of these host properties. For example, twelve genes significantly correlate with age and three functional modules with the body mass index, hinting at a diagnostic potential of microbial markers.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3728647/" 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/PMC3728647/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arumugam, Manimozhiyan -- Raes, Jeroen -- Pelletier, Eric -- Le Paslier, Denis -- Yamada, Takuji -- Mende, Daniel R -- Fernandes, Gabriel R -- Tap, Julien -- Bruls, Thomas -- Batto, Jean-Michel -- Bertalan, Marcelo -- Borruel, Natalia -- Casellas, Francesc -- Fernandez, Leyden -- Gautier, Laurent -- Hansen, Torben -- Hattori, Masahira -- Hayashi, Tetsuya -- Kleerebezem, Michiel -- Kurokawa, Ken -- Leclerc, Marion -- Levenez, Florence -- Manichanh, Chaysavanh -- Nielsen, H Bjorn -- Nielsen, Trine -- Pons, Nicolas -- Poulain, Julie -- Qin, Junjie -- Sicheritz-Ponten, Thomas -- Tims, Sebastian -- Torrents, David -- Ugarte, Edgardo -- Zoetendal, Erwin G -- Wang, Jun -- Guarner, Francisco -- Pedersen, Oluf -- de Vos, Willem M -- Brunak, Soren -- Dore, Joel -- MetaHIT Consortium -- Antolin, Maria -- Artiguenave, Francois -- Blottiere, Herve M -- Almeida, Mathieu -- Brechot, Christian -- Cara, Carlos -- Chervaux, Christian -- Cultrone, Antonella -- Delorme, Christine -- Denariaz, Gerard -- Dervyn, Rozenn -- Foerstner, Konrad U -- Friss, Carsten -- van de Guchte, Maarten -- Guedon, Eric -- Haimet, Florence -- Huber, Wolfgang -- van Hylckama-Vlieg, Johan -- Jamet, Alexandre -- Juste, Catherine -- Kaci, Ghalia -- Knol, Jan -- Lakhdari, Omar -- Layec, Severine -- Le Roux, Karine -- Maguin, Emmanuelle -- Merieux, Alexandre -- Melo Minardi, Raquel -- M'rini, Christine -- Muller, Jean -- Oozeer, Raish -- Parkhill, Julian -- Renault, Pierre -- Rescigno, Maria -- Sanchez, Nicolas -- Sunagawa, Shinichi -- Torrejon, Antonio -- Turner, Keith -- Vandemeulebrouck, Gaetana -- Varela, Encarna -- Winogradsky, Yohanan -- Zeller, Georg -- Weissenbach, Jean -- Ehrlich, S Dusko -- Bork, Peer -- 076964/Wellcome Trust/United Kingdom -- 082372/Wellcome Trust/United Kingdom -- England -- Nature. 2011 May 12;473(7346):174-80. doi: 10.1038/nature09944. Epub 2011 Apr 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21508958" target="_blank"〉PubMed〈/a〉

Description: Cichlid fishes are famous for large, diverse and replicated adaptive radiations in the Great Lakes of East Africa. To understand the molecular mechanisms underlying cichlid phenotypic diversity, we sequenced the genomes and transcriptomes of five lineages of African cichlids: the Nile tilapia (Oreochromis niloticus), an ancestral lineage with low diversity; and four members of the East African lineage: Neolamprologus brichardi/pulcher (older radiation, Lake Tanganyika), Metriaclima zebra (recent radiation, Lake Malawi), Pundamilia nyererei (very recent radiation, Lake Victoria), and Astatotilapia burtoni (riverine species around Lake Tanganyika). We found an excess of gene duplications in the East African lineage compared to tilapia and other teleosts, an abundance of non-coding element divergence, accelerated coding sequence evolution, expression divergence associated with transposable element insertions, and regulation by novel microRNAs. In addition, we analysed sequence data from sixty individuals representing six closely related species from Lake Victoria, and show genome-wide diversifying selection on coding and regulatory variants, some of which were recruited from ancient polymorphisms. We conclude that a number of molecular mechanisms shaped East African cichlid genomes, and that amassing of standing variation during periods of relaxed purifying selection may have been important in facilitating subsequent evolutionary diversification.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4353498/" 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/PMC4353498/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brawand, David -- Wagner, Catherine E -- Li, Yang I -- Malinsky, Milan -- Keller, Irene -- Fan, Shaohua -- Simakov, Oleg -- Ng, Alvin Y -- Lim, Zhi Wei -- Bezault, Etienne -- Turner-Maier, Jason -- Johnson, Jeremy -- Alcazar, Rosa -- Noh, Hyun Ji -- Russell, Pamela -- Aken, Bronwen -- Alfoldi, Jessica -- Amemiya, Chris -- Azzouzi, Naoual -- Baroiller, Jean-Francois -- Barloy-Hubler, Frederique -- Berlin, Aaron -- Bloomquist, Ryan -- Carleton, Karen L -- Conte, Matthew A -- D'Cotta, Helena -- Eshel, Orly -- Gaffney, Leslie -- Galibert, Francis -- Gante, Hugo F -- Gnerre, Sante -- Greuter, Lucie -- Guyon, Richard -- Haddad, Natalie S -- Haerty, Wilfried -- Harris, Rayna M -- Hofmann, Hans A -- Hourlier, Thibaut -- Hulata, Gideon -- Jaffe, David B -- Lara, Marcia -- Lee, Alison P -- MacCallum, Iain -- Mwaiko, Salome -- Nikaido, Masato -- Nishihara, Hidenori -- Ozouf-Costaz, Catherine -- Penman, David J -- Przybylski, Dariusz -- Rakotomanga, Michaelle -- Renn, Suzy C P -- Ribeiro, Filipe J -- Ron, Micha -- Salzburger, Walter -- Sanchez-Pulido, Luis -- Santos, M Emilia -- Searle, Steve -- Sharpe, Ted -- Swofford, Ross -- Tan, Frederick J -- Williams, Louise -- Young, Sarah -- Yin, Shuangye -- Okada, Norihiro -- Kocher, Thomas D -- Miska, Eric A -- Lander, Eric S -- Venkatesh, Byrappa -- Fernald, Russell D -- Meyer, Axel -- Ponting, Chris P -- Streelman, J Todd -- Lindblad-Toh, Kerstin -- Seehausen, Ole -- Di Palma, Federica -- 2R01DE019637-04/DE/NIDCR NIH HHS/ -- F30 DE023013/DE/NIDCR NIH HHS/ -- MC_U137761446/Medical Research Council/United Kingdom -- R01 DE019637/DE/NIDCR NIH HHS/ -- R01 NS034950/NS/NINDS NIH HHS/ -- U54 HG002045/HG/NHGRI NIH HHS/ -- Wellcome Trust/United Kingdom -- England -- Nature. 2014 Sep 18;513(7518):375-81. doi: 10.1038/nature13726. Epub 2014 Sep 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA [2] MRC Functional Genomics Unit, University of Oxford, Oxford OX1 3QX, UK [3]. ; 1] Department of Fish Ecology and Evolution, Eawag Swiss Federal Institute of Aquatic Science and Technology, Center for Ecology, Evolution &Biogeochemistry, CH-6047 Kastanienbaum, Switzerland [2] Division of Aquatic Ecology, Institute of Ecology &Evolution, University of Bern, CH-3012 Bern, Switzerland [3]. ; 1] MRC Functional Genomics Unit, University of Oxford, Oxford OX1 3QX, UK [2]. ; 1] Gurdon Institute, Cambridge CB2 1QN, UK [2] Wellcome Trust Sanger Institute, Hinxton CB10 1SA, UK. ; Division of Aquatic Ecology, Institute of Ecology &Evolution, University of Bern, CH-3012 Bern, Switzerland. ; Department of Biology, University of Konstanz, D-78457 Konstanz, Germany. ; 1] Department of Biology, University of Konstanz, D-78457 Konstanz, Germany [2] European Molecular Biology Laboratory, 69117 Heidelberg, Germany. ; Institute of Molecular and Cell Biology, A*STAR, 138673 Singapore. ; Department of Biology, Reed College, Portland, Oregon 97202, USA. ; Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA. ; Biology Department, Stanford University, Stanford, California 94305-5020, USA. ; Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California 91125, USA. ; Wellcome Trust Sanger Institute, Hinxton CB10 1SA, UK. ; Benaroya Research Institute at Virginia Mason, Seattle, Washington 98101, USA. ; Institut Genetique et Developpement, CNRS/University of Rennes, 35043 Rennes, France. ; CIRAD, Campus International de Baillarguet, TA B-110/A, 34398 Montpellier cedex 5, France. ; School of Biology, Georgia Institute of Technology, Atlanta, Georgia 30332-0230, USA. ; Department of Biology, University of Maryland, College Park, Maryland 20742, USA. ; Animal Genetics, Institute of Animal Science, ARO, The Volcani Center, Bet-Dagan, 50250 Israel. ; Zoological Institute, University of Basel, CH-4051 Basel, Switzerland. ; 1] Department of Fish Ecology and Evolution, Eawag Swiss Federal Institute of Aquatic Science and Technology, Center for Ecology, Evolution &Biogeochemistry, CH-6047 Kastanienbaum, Switzerland [2] Division of Aquatic Ecology, Institute of Ecology &Evolution, University of Bern, CH-3012 Bern, Switzerland. ; MRC Functional Genomics Unit, University of Oxford, Oxford OX1 3QX, UK. ; Department of Integrative Biology, Center for Computational Biology and Bioinformatics; The University of Texas at Austin, Austin, Texas 78712, USA. ; Department of Fish Ecology and Evolution, Eawag Swiss Federal Institute of Aquatic Science and Technology, Center for Ecology, Evolution &Biogeochemistry, CH-6047 Kastanienbaum, Switzerland. ; Department of Biological Sciences, Tokyo Institute of Technology, Tokyo, 226-8501 Yokohama, Japan. ; Systematique, Adaptation, Evolution, National Museum of Natural History, 75005 Paris, France. ; Institute of Aquaculture, University of Stirling, Stirling FK9 4LA, UK. ; Carnegie Institution of Washington, Department of Embryology, 3520 San Martin Drive Baltimore, Maryland 21218, USA. ; 1] Department of Biological Sciences, Tokyo Institute of Technology, Tokyo, 226-8501 Yokohama, Japan [2] National Cheng Kung University, Tainan City, 704 Taiwan. ; Gurdon Institute, Cambridge CB2 1QN, UK. ; 1] Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA [2] Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, 751 23 Uppsala, Sweden. ; 1] Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA [2] Vertebrate and Health Genomics, The Genome Analysis Centre, Norwich NR18 7UH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25186727" target="_blank"〉PubMed〈/a〉

Description: The construction of the vertebral column has been used as a key anatomical character in defining and diagnosing early tetrapod groups. Rhachitomous vertebrae--in which there is a dorsally placed neural arch and spine, an anteroventrally placed intercentrum and paired, posterodorsally placed pleurocentra--have long been considered the ancestral morphology for tetrapods. Nonetheless, very little is known about vertebral anatomy in the earliest stem tetrapods, because most specimens remain trapped in surrounding matrix, obscuring important anatomical features. Here we describe the three-dimensional vertebral architecture of the Late Devonian stem tetrapod Ichthyostega using propagation phase-contrast X-ray synchrotron microtomography. Our scans reveal a diverse array of new morphological, and associated developmental and functional, characteristics, including a possible posterior-to-anterior vertebral ossification sequence and the first evolutionary appearance of ossified sternal elements. One of the most intriguing features relates to the positional relationships between the vertebral elements, with the pleurocentra being unexpectedly sutured or fused to the intercentra that directly succeed them, indicating a 'reverse' rhachitomous design. Comparison of Ichthyostega with two other stem tetrapods, Acanthostega and Pederpes, shows that reverse rhachitomous vertebrae may be the ancestral condition for limbed vertebrates. This study fundamentally revises our current understanding of vertebral column evolution in the earliest tetrapods and raises questions about the presumed vertebral architecture of tetrapodomorph fish and later, more crownward, tetrapods.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pierce, Stephanie E -- Ahlberg, Per E -- Hutchinson, John R -- Molnar, Julia L -- Sanchez, Sophie -- Tafforeau, Paul -- Clack, Jennifer A -- England -- Nature. 2013 Feb 14;494(7436):226-9. doi: 10.1038/nature11825. Epub 2013 Jan 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University Museum of Zoology, Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK. spierce@rvc.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23334417" target="_blank"〉PubMed〈/a〉

Description: We report the complete mitochondrial genome sequence of the flowering plant Amborella trichopoda. This enormous, 3.9-megabase genome contains six genome equivalents of foreign mitochondrial DNA, acquired from green algae, mosses, and other angiosperms. Many of these horizontal transfers were large, including acquisition of entire mitochondrial genomes from three green algae and one moss. We propose a fusion-compatibility model to explain these findings, with Amborella capturing whole mitochondria from diverse eukaryotes, followed by mitochondrial fusion (limited mechanistically to green plant mitochondria) and then genome recombination. Amborella's epiphyte load, propensity to produce suckers from wounds, and low rate of mitochondrial DNA loss probably all contribute to the high level of foreign DNA in its mitochondrial genome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rice, Danny W -- Alverson, Andrew J -- Richardson, Aaron O -- Young, Gregory J -- Sanchez-Puerta, M Virginia -- Munzinger, Jerome -- Barry, Kerrie -- Boore, Jeffrey L -- Zhang, Yan -- dePamphilis, Claude W -- Knox, Eric B -- Palmer, Jeffrey D -- R01-GM-76012/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Dec 20;342(6165):1468-73. doi: 10.1126/science.1246275.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Indiana University, Bloomington, IN 47405, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24357311" target="_blank"〉PubMed〈/a〉