Skip to content

Research at St Andrews

A well-constrained estimate for the timing of the salmonid whole genome duplication reveals major decoupling from species diversification

Research output: Contribution to journalArticle

Abstract

Whole genome duplication (WGD) is often considered to be mechanistically associated with species diversification. Such ideas have been anecdotally attached to a WGD at the stem of the salmonid fish family, but remain untested. Here, we characterized an extensive set of gene paralogues retained from the salmonid WGD, in species covering the major lineages (subfamilies Salmoninae, Thymallinae and Coregoninae). By combining the data in calibrated relaxed molecular clock analyses, we provide the first well-constrained and direct estimate for the timing of the salmonid WGD. Our results suggest that the event occurred no later in time than 88 Ma and that 40–50 Myr passed subsequently until the subfamilies diverged. We also recovered a Thymallinae–Coregoninae sister relationship with maximal support. Comparative phylogenetic tests demonstrated that salmonid diversification patterns are closely allied in time with the continuous climatic cooling that followed the Eocene–Oligocene transition, with the highest diversification rates coinciding with recent ice ages. Further tests revealed considerably higher speciation rates in lineages that evolved anadromy—the physiological capacity to migrate between fresh and seawater—than in sister groups that retained the ancestral state of freshwater residency. Anadromy, which probably evolved in response to climatic cooling, is an established catalyst of genetic isolation, particularly during environmental perturbations (for example, glaciation cycles). We thus conclude that climate-linked ecophysiological factors, rather than WGD, were the primary drivers of salmonid diversification.
Close

Details

Original languageEnglish
Article number20132881
Number of pages8
JournalProceedings of the Royal Society B: Biological Sciences
Volume281
Issue number1778
Early online date22 Jan 2014
DOIs
Publication statusPublished - 7 Mar 2014

    Research areas

  • Whole genome duplication (WGD), Species diversification, Salmonid fish, Climate change, Evolution, Anadromy

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. Advances in research on the impacts of anti-submarine sonar on beaked whales

    Bernaldo De Quirós, Y., Fernandez, A., Baird, R. W., Brownell, R. L., Aguilar De Soto, N., Allen, D., Arbelo, M., Arregui, M., Costidis, A., Fahlman, A., Frantzis, A., Gulland, F. M. D., Iñíguez, M., Johnson, M., Komnenou, A., Koopman, H., Pabst, D. A., Roe, W. D., Sierra, E., Tejedor, M. & 1 others, Schorr, G., 30 Jan 2019, In : Proceedings of the Royal Society B: Biological Sciences. 286, 1895, 20182533.

    Research output: Contribution to journalReview article

  2. Linguistic laws in chimpanzee gestural communication

    Heesen, R., Hobaiter, C., Ferrer-i-Cancho, R. & Semple, S., 13 Feb 2019, In : Proceedings of the Royal Society B: Biological Sciences. 286, 1896

    Research output: Contribution to journalArticle

  3. Network analysis reveals underlying syntactic features in a vocally learnt mammalian display, humpback whale song

    Allen, J. A., Garland, E. C., Dunlop, R. A. & Noad, M. J., 18 Dec 2019, In : Proceedings of the Royal Society B: Biological Sciences. 286, 1917, 20192014.

    Research output: Contribution to journalArticle

Related by journal

  1. Proceedings of the Royal Society of London Series B: Biological Sciences (Journal)

    Oscar Eduardo Gaggiotti (Member of editorial board)
    1 Jan 2013 → …

    Activity: Publication peer-review and editorial work typesEditor of research journal

  2. Proceedings of the Royal Society B: Biological Sciences (Journal)

    Kate Arnold (Reviewer)
    2012 → …

    Activity: Publication peer-review and editorial work typesPeer review of manuscripts

  3. Proceedings of the Royal Society of London Series B: Biological Sciences (Journal)

    Michael Gordon Ritchie (Editor)
    20102011

    Activity: Publication peer-review and editorial work typesEditor of research journal

  4. Proceedings of the Royal Society B: Biological Sciences (Journal)

    Susan Denise Healy (Member of editorial board)
    2009 → …

    Activity: Publication peer-review and editorial work typesEditor of research journal

  5. Proceedings of the Royal Society B: Biological Sciences (Journal)

    Iain McCombe Matthews (Editor)
    2008 → …

    Activity: Publication peer-review and editorial work typesPeer review of manuscripts

ID: 99618626

Top