Acknowledgments

In the second release of this project we are grateful to:

• Department of Biotechnology & Molecular Sciences (DBSM) of "Insubria University ", Italy, for contributing an image of Xenopus tropicalis
• Mushroom Observer website where we have picked up the image of Phanerochaete chrysosporium, Copyright of the author Garryn Skurulsky, and free available under the term of the Creative Commons license
• José Liétor Gallego for contributing an image of Chlamys farresi by way of its web site "elrincondelmalacologo.com"
• Wikipedia, the free encyclopedia from where we have picked up the images of Scrophularia californica, Cestrum parqui, Mirabilis spp. and Eupatorium spp., copyright of the authors Gordon Leppig & Andrea J. Pickart, A.Barra, "Wildfeuer" and Kenpei respectively, and free available under the dual terms of the Wikipedia Commons image and the Creative Commons licenses
• The Dartmouth Electron Microscope Facility web site for contributing an image of Chlamydomonas reinhardtii
• Wikimedia Commons, the free media repository from where we have picked up the images of "Blueberry fruits" and Petunia x hybrida, Copyright of the authors Scott Bauer of the U.S. federal government (USDA) and Kor!An, respectively, and free available under the dual terms of the Wikimedia Commons image and the Creative Commons licences
• Visuals Online web site of the National Cancer Institute (NCI) for contributing an image of Pisum sativum. Copyright of the author Renee Comet
• Duane Raver of the New England Field Office (U.S.Fish & Wildlife Service,USFWS) for contributing an image of Atlantic salmon
• Nils Kröger of the Georgia Institute of Technology (Atlanta, USA) for contributing an image of Thalassiosira pseudonana
• Yves Van de Peer, of VIB Department of Plant Systems Biology, UGent Ghent University for contributing an image of Phaeodactylum tricornutum
• Laurie Campbell (Great British Wildlife web site) for contributing an image of Gasterosteus aculeatus
• Robert Soreng of the Department of Botany (Smithsonian National Museum of Natural History, Washington D.C.) for contributing an image of Saccharum L.
• List of Köhler's Images (Köhler's Medizinal-Pflanzen) from where we have picked up the image of Arachis hypogea
• Wikipedia, the free encyclopedia from where we have picked up the image of Porphyra yezoensis, Copyright of an anonymous user, and free available under the dual terms of the Wikipedia Commons image and the Creative Commons licenses.
• Pedro Moreno of "Instituto Valenciano de Investigaciones Agrarias" (IVIA, Spain), for contributing an image of Rangpur lime
• Adrian Sambade of the "John Innes Centre" (JIC, Norwich UK), for contributing an image of Nicotiana spp.
• Wikipedia, the free encyclopedia from where we have picked up the images of Dianthus caryophyllus, Fragaria spp, Gadus morhua and Lamium maculatum, Copyright of the users/authors "KeepOpera", Marc Ryckaert, Hans-Petter Fjeld and "Jeffdelonge", respectively, and free available under the dual terms of the Wikipedia Commons image and the Creative Commons licenses.
• Forest & Kim Starr of the "Hawaiian Ecosystems at Risk" project (HEAR) for contributing the images of Dioscorea sansibarensis, Commelina diffusa and Bougainvillea spectabilis
• USDA APHIS PPQ Archive's Images, of the Center for Invasive Species and ecosystem Health for contributing an image of Oryza longistaminata
• The Biodiversity of microbes web site, the "Micro*scope", for contributing the image of Rhodomonas salina
• Wikimedia Commons, the free media repository from where we have picked up the images of Colocasia esculenta, Hydra magnipapillata, Oikopleura dioica, Vigna radiata, Vitis vinifera and Xenopus laevis, Copyright of the users/authors David Monniaux, Friederike Anton-Erxleben, Minami Himemiya, "Sarefo", "Bangin" and Michael Linnenbach, respectively, and free available under the dual terms of the Wikimedia Commons image and the Creative Commons licenses
• Dan Wiedbrauk of the "Warde Medical Laboratory" (Ann Arbor, Michigan) for contributing an image of Candida albicans 
• Biological library public domain (BioLib) from where we have picked up the images of Eumunida spp, Theobroma cacao and Brassica oleracea
• Wikipedia, the free encyclopedia from where we have picked up the images of Populus trichocarpa, Rudbeckia hirta, Ophicephalus striatus and Strongylocentrotus purpuratus, Copyright of the users/authors Walter Siegmund, "Greschtester", "Wie146" and "Taollan82", respectively, and free available under the dual terms of the Wikipedia Commons image and the Creative Commons licenses
• Duong Van Hop, curator of "Vietnam Type Culture Collection" (VTCC) of the Institute of Microbiology and Biotechnology, Vietnam National University for contributing the images of Debaryomyces Hanserii and kluyveromyces marxianus
• Shinichi Morishita of the Department of Computational Biology, Graduate School of Frontier Sciences, University of Tokyo for contributing the image of Oryzias latipes
• Giorgio Venturini for contributing an image of Setaria italica by way of its web site "giorgioventurini.net"
• G.W. Wilson of Australian Tropical Herbarium (ATH) for contributing an image of Oryza australiensis
• Wikipedia, the free encyclopedia from where we have picked up the image of Nasonia vitripennis, Copyright of M.E.Clark, and free available under the dual terms of the Wikipedia Commons image and the Creative Commons licenses
• Marine Biological Laboratory (MBL), Woods Hole Massachusetts, for contributing an image of Saccoglossus spp
• Dickson Despommier of Columbia University for contributing an image of Trichinella spiralis, by way of The Trichinella Page "trichinella.org"
• Carol Ann Borden of the Department of Botany, University of British Columbia for contributing an image of Volvox carteri
• James D. Gathany of Center of Disease Control and Prevention (CDC) for contributing the images of Anopheles gambiae and Culex quinquefasciatus
• CDC-DPDx - "Laboratory Identification of Parasites of Public Health Concern" for contributing the images of Brugia malayi and Ascaris lumbricoides
• Andreas Riekert for contributing an image of Antheraea mylitta, by way of the Web site "saturniidae-moths.de".
• Stephen J. Davies of Uniformed Services University (Bethesda, MD) for contributing an image of Schistosoma mansoni
• Wikipedia, the free encyclopedia from where we have picked up the images of Danio rerio and Anolis carolinensis, respectively Copyright of the users "User:Azul" and DanielCD, and free available under the dual terms of the Wikipedia Commons image and the Creative Commons licenses.
• Pavel Neumann, Institute of Plant Molecular Biology, Czech Republic, for useful revision of Ogre LTR retrotransposon
• Teo Chee How, Unit of Genetic and Molecular Biology. University of Malaya, Malaysia for useful revision and update of Monkey LTR retrotransposon
• Eric W. Ganko, Department of Bioinformatics, Biology Dept. UNC-Chapel-Hill, for useful corrections and information about C. elegans-like Mag and Cer2-3 LTR retroelements
• Claudia Copeland, Department of Bioinformatics, University of Leipzig, for useful information about the Boudicca LTR retrotransposon
• The GyDB project is partly supported by financial support 17092008 from ENISA (Empresa Nacional de Innovacion S.A), by grant IMIDTD/2008/103 from IMPIVA; grant PTQ-09-01-00670 and PTQ-09-01-00020 from Torres-Quevedo programme at MICINN.
• All contributors in the first release.

In the first release of this project we are grateful to:

• University of Valencia for support and permission to use the URL http://gydb.uv.es with research and education purposes, and by providing funding for publication charges.
• Alfredo Martinez, Department of Plant Pathology, University of Georgia, for contributing an image of Fusarium spp.
• Wikipedia, the free encyclopedia from where we have picked up the image of Takifugu rubripes, Copyright of the user Chris 73, and free available under the dual terms of the Wikipedia Commons image and the Creative Commons licenses.
• Jean-Jacques Eckert and Patrick Bertrand of Recif France, for contributing an image of Tripneustes gratilla.
• Joaquin Panadero, our friend and Biotechvana partner of the Centro Nacional de Biotecnologia (CNB), for his collaboration in this project and contributing the images of Mandrill spp., Primates spp., Saccharomyces cerevisiae, Mus musculus, Mandrillus sphinx, Saccharomyces exiguus, and Cricetelus griseus.
• Pierre J.G.M. de Wit of Laboratory of Phytopathology, Wageningen University (www.php.wur.nl/uk), for contributing an image of Cladosporium fulvum by way of Alejandro Perez of the Universidad de Malaga.
• Alberto Urbaneja of "Instituto Valenciano de Investigaciones Agrarias" (IVIA), for contributing an image of Ceratitis capitata.
• M.Mercedes Vicent Garcia for copyediting and English revisions.
• Valmir Duarte of Faculdade de Agronomía, UFRGS, Porto Alegre, for contributing an image of Colletotrichum gloeosporioides.
• Duncan van Vliet of the Web site "www.onderwaterwereld.net", for contributing an image of Ciona intestinalis.
• Hugh D. Wilson of TAMU herbarium, Texas A&M University, for contributing an image of Zea diploperennis.
• "Aquaria Central" for contributing an image of Stizostedion vitreum.
• Marcel Lecomte for contributing an image of Pyrenophora graminea, by way of the Web site "Skynet.be".
• Tom Volk of the University of Wisconsin-La Crosse, for contributing an image of Tricholoma magnivelare, the american matsutake mushroom.
• Michael Schleicher of the Ludwig-Maximilians-Universitaet, for contributing an image of Dictyostelium discoideum, host of the Gypsy-like Skipper retrotransposon.
• The Web site "www.knoch1.de", for making online available a comprehensive database of images of plant organisms from which we have picked up the images of Arabidopsis thaliana and Nicotiana tomentosiformis for educational and research purposes, following the on-line permission of the copyright owner.
• Chris Glenn of JC Raulston Arboretum, for contributing an image of Phascolarctos cinereus with permission of the copyright owner, Bryce Lane, Department of Horticultural Science, NC State University.
• David Pearce of the Web site "primates.com", for contributing an image of Hylobates syndactylus.
• Jaap van Tuyl of Wageningen University and Research Center, for contributing an image of Lilium henryi by way of the Lilium information page.
• Alan Hill of Hopwood Hall College, for contributing an image of Pan paniscus by way of the "ZipCodeZoo.com" Web site project.
• Marc Hauser of the Cognitive Evolution Laboratory of Harvard University, for contributing an image of Cercopithecus aethiops tantalus.
• Juan Bibiloni of "Jardín Botánico Mundani" in Mallorca, for contributing an image of Sorghum bicolor.
• David Stand of BayScience Foundation, for contributing an image of Macaca mulatta by way of the "ZipCodeZoo.com" Web site project.
• J. Michael Miller of the Science National Center for Zoonotic, Vector-borne, and Enteric Diseases, of Coordinating Center for Infectious Diseases (CCID), Atlanta, for contributing an image of Schistosoma japonicum.
• Richard J Howard of DuPont Experimental Station, for contributing an image of Magnaporthe grisea reprinted, with permission, from the Annual Review of Microbiology, Volume 50 © 1996 by Annual Reviews (www.annualreviews.org).
• Tim.J. Goodwin of the University of Otago, for useful information and comments concerning the DIRS1 lineage of retrotransposons
• Ralf J. Sommer of the Max Planck Institute for Developmental Biology, for contributing an image of Caenorhabditis elegans
• Alex Wild, author of the insect photography Web site "myrmecos.net", for contributing an image of Tribolium castaneum
• Rita Bernhardt, Lehrstuhl für Biochemie, Universität des Saarlandes, for contributing an image of Schizosaccharomyces pombe
• John H. Wahlert et al. of Baruch College, City University of New York, for contributing an image of Clonorchis sinensis
• Cal Vornberger, nature photographer, for contributing an image of Meleagris gallopavo by way of the Animal Diversity Web of the University of Michigan Museum of Zoology
• Ralph Cavaliere of Gettysburg College for contributing an image of Aspergillus nidulans.
• Enrique Donat and Cristina Campos for contributing the images of Pinus spp., Ovis spp. and Gallus gallus.
• Margarita Lopez of SESBE (Sociedad Española de Biología Evolutiva) for contributing two images of Capra pyrenaica copyright of Jorge Aguilar Bosch.
• Rachel Epstein, Washington University, for all English revisions.
• Maria Consuelo Palacios for her collaboration in this project.
• Javi Ortiz, Isaac Fernandez and Bernardo Celda for technical support at the Servicio Central de Soporte a la Investigacion Experimental (SCSIE) of the University of Valencia.
• Miguel Vicente Ripollés, Ausias March Institute of Valencia, for coordinate the collaboration of Virtudes Planelles, Fran Frechina, Jordi Cervera, Pablo Sabater, and Emilio Javaloyas. Our thanks to all them, also.
• Peter Balint-Kurti from the United States Agricultural Research Service, for useful information of the Monkey LTR retrotransposon.
• Howard Laten of Loyola University of Chicago, for useful information of the Diaspora LTR retrotransposon.
• Andreas Trepte of Max-Planck-Institute, for contributing an image of Drosophila melanogaster.
• Thomas Kaufman of Flybase, for contributing the images of Drosophila virilis and Drosophila ananassae.
• Sarah LaRose of the Virtual Museum of Canada, for contributing an image of Alternaria alternata copyright of George Barron.
• CEEI of Valencia for supporting us at the start of this project.
• We have been awarded the NOVA 2006 by IMPIVA and Conselleria d`Empresa, Universitat I Cìencia of Valencia.
• The GyDB project have been partly supported by European Union funding grants IMCBTA/2005/45, IMIDTD/2006/158 and IMIDTD/2007/33 from IMPIVA and by grant BFU2005-00503 from Ministerio de Educación y Ciencia to Andres Moya.