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      The short-lived African turquoise killifish: an emerging experimental model for ageing

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          ABSTRACT

          Human ageing is a fundamental biological process that leads to functional decay, increased risk for various diseases and, ultimately, death. Some of the basic biological mechanisms underlying human ageing are shared with other organisms; thus, animal models have been invaluable in providing key mechanistic and molecular insights into the common bases of biological ageing. In this Review, we briefly summarise the major applications of the most commonly used model organisms adopted in ageing research and highlight their relevance in understanding human ageing. We compare the strengths and limitations of different model organisms and discuss in detail an emerging ageing model, the short-lived African turquoise killifish. We review the recent progress made in using the turquoise killifish to study the biology of ageing and discuss potential future applications of this promising animal model.

          Abstract

          Summary: The short-lived African turquoise killifish is an emerging experimental vertebrate model organism, ideal for studies aimed at discovering the basic mechanisms underlying vertebrate ageing and adult phenotypes.

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          Most cited references188

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          Efficient In Vivo Genome Editing Using RNA-Guided Nucleases

          Clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated (Cas) systems have evolved in bacteria and archaea as a defense mechanism to silence foreign nucleic acids of viruses and plasmids. Recent work has shown that bacterial type II CRISPR systems can be adapted to create guide RNAs (gRNAs) capable of directing site-specific DNA cleavage by the Cas9 nuclease in vitro. Here we show that this system can function in vivo to induce targeted genetic modifications in zebrafish embryos with efficiencies comparable to those obtained using ZFNs and TALENs for the same genes. RNA-guided nucleases robustly enabled genome editing at 9 of 11 different sites tested, including two for which TALENs previously failed to induce alterations. These results demonstrate that programmable CRISPR/Cas systems provide a simple, rapid, and highly scalable method for altering genes in vivo, opening the door to using RNA-guided nucleases for genome editing in a wide range of organisms.
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            Using FlyAtlas to identify better Drosophila melanogaster models of human disease.

            FlyAtlas, a new online resource, provides the most comprehensive view yet of expression in multiple tissues of Drosophila melanogaster. Meta-analysis of the data shows that a significant fraction of the genome is expressed with great tissue specificity in the adult, demonstrating the need for the functional genomic community to embrace a wide range of functional phenotypes. Well-known developmental genes are often reused in surprising tissues in the adult, suggesting new functions. The homologs of many human genetic disease loci show selective expression in the Drosophila tissues analogous to the affected human tissues, providing a useful filter for potential candidate genes. Additionally, the contributions of each tissue to the whole-fly array signal can be calculated, demonstrating the limitations of whole-organism approaches to functional genomics and allowing modeling of a simple tissue fractionation procedure that should improve detection of weak or tissue-specific signals.
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              Pleiotropy, Natural Selection, and the Evolution of Senescence

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                Author and article information

                Journal
                Dis Model Mech
                Dis Model Mech
                DMM
                dmm
                Disease Models & Mechanisms
                The Company of Biologists Ltd
                1754-8403
                1754-8411
                1 February 2016
                1 February 2016
                : 9
                : 2
                : 115-129
                Affiliations
                [1 ]Max Planck Institute for Biology of Ageing , D50931, Cologne, Germany
                [2 ]Department of New Biology, DGIST , 711-873, Daegu, Republic of Korea
                [3 ]Center for Plant Aging Research, Institute for Basic Science , 711-873, Daegu, Republic of Korea
                Author notes
                [* ]Author for correspondence ( Dario.Valenzano@ 123456age.mpg.de )
                Article
                DMM023226
                10.1242/dmm.023226
                4770150
                26839399
                ffc468a4-e97d-4e06-b493-ec3972d0d01f
                © 2016. Published by The Company of Biologists Ltd

                This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed.

                History
                Funding
                Funded by: Max Planck Society; Max Planck Institute for Biology of Ageing;
                Categories
                Review

                Molecular medicine
                ageing,longevity,age-associated diseases,model organisms,turquoise killifish,nothobranchius furzeri

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