Skip to content

Research at St Andrews

Characterization of two paralogous muscleblind-like genes from the tiger pufferfish (Takifugu rubripes)

Research output: Contribution to journalArticle

Author(s)

JMO Fernandes, James Robertson Kinghorn, Ian Alistair Johnston

School/Research organisations

Abstract

Muscleblind-like (Mbnl) proteins are required for terminal muscle differentiation in mammals. In this study we have identified two mbnl paralogues from the tiger pufferfish, tmbnl2a and tmbnl3, which are the first examples of non-mammalian mbnl genes. Tmbnl2a and tmbnl3 were found in regions of conserved synteny and had a high degree of global conservation with their mammalian homologues. Phylogenetic analysis showed that the T rubripes genome contains one mbnl3 gene and two copies of mbnl1 and mbnl2. Moreover, the mbnl1 and mbnl3 paralogues are derived from duplication of a common ancestral gene. The average rates of synonymous substitutions between T rubripes, mouse and human mbnl2 and mbnl3 genes were much higher than the corresponding rates of non-synonymous mutations, suggesting that Mbnl2 and Mbnl3 are subjected to strong purifying selection. Quantitation of tmbnl2a and tmbnl3 transcripts by real-time PCR revealed that these two paralogues are differentially expressed in fast and slow myotomal muscle, heart, liver, skin, brain and testes. Tmbnl2a was expressed at similar levels in all tissues examined, as was the mouse orthologue. Tmbnl3 was expressed at higher levels than tmbnl2a, with a ubiquitous tissue distribution. Expression of tmbnl3 remained high in adult pufferfish muscle whereas the mouse orthologue was down-regulated in adults, perhaps reflecting the indeterminate and determinate growth patterns of these taxa, respectively. (c) 2006 Elsevier Inc. All rights reserved.

Close

Details

Original languageEnglish
Pages (from-to)180-186
Number of pages7
JournalComparative Biochemistry and Physiology - Part B: Biochemistry and Molecular Biology
Volume146
Issue number2
DOIs
Publication statusPublished - Feb 2007

    Research areas

  • MBNL2, MBNL3, CHCR, gene expression, muscle differentiation, muscleblind, fish, Takifugu rubripes, TELEOST FISH, EXPRESSION, PLASTICITY, PROTEINS, DIFFERENTIATION, MYOGENESIS, GENOME, GROWTH, CELLS

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Demonstration of the use of environmental DNA for the non-invasive genotyping of a bivalve mollusk, the European flat oyster (Ostrea edulis)

    Holman, L., Hollenbeck, C. M., Ashton, T. J. & Johnston, I. A., 19 Nov 2019, In : Frontiers in Genetics. 10, 7 p., 1159.

    Research output: Contribution to journalArticle

  2. Influence of feed ration size on somatic and muscle growth in landlocked dwarf and farmed Atlantic salmon Salmo salar

    Andersen, Ø., Vieira, V., Dessen, J-E. & Johnston, I. A., Apr 2019, In : Journal of Fish Biology. 94, 4, p. 614-620 7 p.

    Research output: Contribution to journalArticle

  3. Genomic tools and selective breeding in molluscs

    Hollenbeck, C. M. & Johnston, I. A., 18 Jul 2018, In : Frontiers in Genetics. 9, 15 p., 253.

    Research output: Contribution to journalReview article

  4. A collaborative European approach to accelerating translational marine science

    Brennecke, P., Ferrante, M., Johnston, I. A. & Smith, D., 5 Jul 2018, In : Journal of Marine Science and Engineering. 6, 3, 12 p., 81.

    Research output: Contribution to journalArticle

Related by journal

  1. Comparison of the transcriptional responses of skeletal muscle and bone to a flooding dose of leucine in the gilthead sea bream (Sparus aurata)

    Garcia de la Serrana, D., Mareco, E. A., Vieira, V. L. A., Power, D. M. & Johnston, I. A., Sep 2016, In : Comparative Biochemistry and Physiology - Part B: Biochemistry and Molecular Biology. 199, p. 50-57 7 p.

    Research output: Contribution to journalArticle

  2. Effects of known phenoloxidase inhibitors on hemocyanin-derived phenoloxidase from Limulus polyphemus

    Wright, J., Clark, W. M., Cain, J. A., Patterson, A., Coates, C. J. & Nairn, J., Nov 2012, In : Comparative Biochemistry and Physiology - Part B: Biochemistry and Molecular Biology. 163, 3-4, p. 303-308 6 p.

    Research output: Contribution to journalArticle

ID: 384679

Top