Resource of Genetic Robustness: Loss-of-Function Mouse Mutant Alleles with no Apparent Phenotype

A special issue of J (ISSN 2571-8800).

Deadline for manuscript submissions: closed (15 November 2018) | Viewed by 5553

Special Issue Editors


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Guest Editor
Transgenerational Epigenetics & Small RNA Biology, Sorbonne Université, CNRS, Laboratoire Biologie du Développement, Institut de Biologie Paris-Seine, UMR7622, 75005 Paris, France
Interests: long non-coding RNAs; small non-coding RNAs; functional genomics; transcriptional regulation; RNA secondary structure; RNA–protein interactions
Special Issues, Collections and Topics in MDPI journals

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Guest Editor

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Guest Editor
UMR7216 Epigenetics and Cell Fate, University of Paris Diderot - Paris 7, Lamarck Building, 35 rue Hélène Brion, 75013 Paris, France
Interests: developmental biology; functional genomics; long non-coding RNAs; epigenetics; transcriptional regulation; genome organization; evolution; endocrinology; genome engineering

Special Issue Information

Dear Colleagues,

This Special Issue aims to collect original research papers, short communications, and review articles that focus on knock-out mice with no apparent phenotype for the scientific community. While mouse models presenting a strong phenotype are often a key to elucidate any in vivo significance of a biological process, many models do not present a detectable phenotype. Publication of the latter is not always possible, and no good estimate exists as to how often those carefully-prepared and analyzed models are just unavailable to the scientific community. With this Special Issue, we want to create an easily-accessible resource that describes bona fide knock-out models with absent or very minor phenotypes, but that will reveal otherwise-unexpected genetic robustness.

This probably-ample repository will give invaluable information to researchers working in similar fields, and will help to broaden our understanding of complex models and potential pitfalls involved. We believe that this collection of open-access high-quality reports will, not only save time for researchers, but also will allow access to previously-inaccessible results.

Potential emphasis should focus on different categories of mouse models, and include, but not limited to, the following:

  • Knock-out mice with no apparent phenotype
  • Absence of phenotypic rescue by in vivo complementation
  • Genetic robustness (genetic redundancy between paralogous and/or non-paralogous genes)
  • Divergence between orthologous genes
  • Impact of genetic background
  • Reversion by mitotic recombination or viral sequence excision

Dr. Florent Hubé
Dr. Philip Hublitz
Dr. Jean-François Ouimette
Guest Editors

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Keywords

  • Generation and analysis of transgenic animal models
  • Knock-out mouse
  • Conditional alleles
  • No apparent phenotype
  • Unexpected lack of phenotype
  • Genetic robustness
  • Lack of phenotypic rescue

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Published Papers (1 paper)

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Research

14 pages, 2705 KiB  
Article
Pathway Analysis of a Transcriptome and Metabolite Profile to Elucidate a Compensatory Mechanism for Taurine Deficiency in the Heart of Taurine Transporter Knockout Mice
by Takashi Ito, Shigeru Murakami and Stephen Schaffer
J 2018, 1(1), 57-70; https://doi.org/10.3390/j1010007 - 27 Aug 2018
Cited by 1 | Viewed by 4876
Abstract
Taurine, which is abundant in mammalian tissues, especially in the heart, is essential for cellular osmoregulation. We previously reported that taurine deficiency leads to changes in the levels of several metabolites, suggesting that alterations in those metabolites might compensate in part for tissue [...] Read more.
Taurine, which is abundant in mammalian tissues, especially in the heart, is essential for cellular osmoregulation. We previously reported that taurine deficiency leads to changes in the levels of several metabolites, suggesting that alterations in those metabolites might compensate in part for tissue taurine loss, a process that would be important in maintaining cardiac homeostasis. In this study, we investigated the molecular basis for changes in the metabolite profile of a taurine-deficient heart using pathway analysis based on the transcriptome and metabolome profile in the hearts of taurine transporter knockout mice (TauTKO mice), which have been reported by us. First, the genes associated with transport activity, such as the solute carrier (SLC) family, are increased in TauTKO mice, while the established transporters for metabolites that are elevated in the TauTKO heart, such as betaine and carnitine, are not altered by taurine deficiency. Second, the integrated analysis using transcriptome and metabolome data revealed significant increases and/or decreases in the genes involved in Arginine metabolism, Ketone body degradation, Glycerophospholipid metabolism, and Fatty acid metabolism in the KEGG pathway database. In conclusion, these pathway analyses revealed genetic compensatory mechanisms involved in the control of the metabolome profile of the taurine-deficient heart. Full article
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